25L12805D

MX25L12805D MCNIX | Alldatasheet

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Technical content

REV. 1.1, OCT. 01, 2008 P/N: PM1310 MX25L12805D 128M-BIT [x 1] CMOS SERIAL FLASH GENERAL

• Serial Peripheral Interface compatible -- Mode 0 and Mode 3  134,217,728 x 1 bit structure  4096 equal sectors with 4K byte each 256 equal sectors with 64K byte each - Any sector can be erased  Single Power Supply Operation - 2.7 to 3.6 volt for read, erase, and program operations  Latch-up protected to 100mA from -1V to Vcc +1V  Low Vcc write inhibit is from 1.5V to 2.5V PERFORMANCE  High Performance - Fast access time: 50MHz serial clock (30pF + 1TTL Load) - Fast program time: 1.4ms/page (typical, 256-byte per page) and 9us/byte (typical) - Fast erase time: 60ms/sector (4KB per sector), 0.7s/block (64KB per block) and 80s/chip - Acceleration mode: - Chip erase time: 50s (typical)  Low Power Consumption - Low active read current: 25mA (max.) at 50MHz - Low active programming current: 20mA (max.) - Low active erase current: 20mA (max.) - Low standby current: 20uA (max.) - Deep power-down mode 20uA (max.)  Typical 100,000 erase/program cycle  10 years data retention SOFTWARE FEATURES  Input Data Format - 1-byte Command code  Advanced Security Features - Block lock protection The BP0-BP3 status bit defines the size of the area to be software protection against program and erase instructions - Additional 512-bit secured OTP for unique identifier  Auto Erase and Auto Program Algorithm - Automatically erases and verifies data at selected sector - Automatically programs and verifies data at selected page by an internal algorithm that automatically times the program pulse widths (Any page to be programed should have page in the erased state first)
• Status Register Feature  Electronic Identification - JEDEC 1-byte manufacturer ID and 2-byte Device ID - RES command, 1-byte Device ID - REMS command, ADD=00H will output the manufacturer's ID first and ADD=01H will output device ID first

FEATURES

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D HARDWARE FEATURES  SCLK Input - Serial clock input  SI Input - Serial Data Input  S O - Serial Data Output  WP#/ACC Pin - Hardware write protection and Program/erase acceleration  HOLD# pin - pause the chip without diselecting the chip  PACKAGE - 16-pin SOP (300mil) - All Pb-free devices are RoHS Compliant GENERAL DESCRIPTION The MX25L12805D is a CMOS 134,217,728 bit serial Flash Memory, which is configured as 16,777,216 x 8 internally. The MX25L12805D features a serial peripheral interface and software protocol allowing operation on a simple 3- wire bus. The three bus signals are a clock input (SCLK), a serial data input (SI), and a serial data output (SO). Serial access to the device is enabled by CS# input. The MX25L12805D provides sequential read operation on whole chip. User may start to read from any byte of the array. While the end of the array is reached, the device will wrap around to the beginning of the array and continuously outputs data until CS# goes high. After program/erase command is issued, auto program/erase algorithms which program/erase and verify the specified page locations will be executed. Program command is executed on byte basis, or page (256 bytes) basis, and erase command is executed on sector (4K-byte), or block(64K-byte), or whole chip basis. To provide user with ease of interface, a status register is included to indicate the status of the chip. The status read command can be issued to detect completion status of a program or erase operation via WIP bit. Advanced security features enhance the protection and security functions, please see security features section for more details. When the device is not in operation and CS# is high, it is put in standby mode and draws less than 20uA DC current. The MX25L12805D utilizes MXIC's proprietary memory cell which reliably stores memory contents even after 100,000 program and erase cycles.

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D PIN CONFIGURATIONS SYMBOL DESCRIPTION CS# Chip Select SI Serial Data Input SO Serial Data Output SCLK Clock Input HOLD# Hold, to pause the serial communication WP#/ACC Write Protection: connect to GND; 11V for program/erase acceleration: connect to 11V VCC + 3.3V Power Supply GND Ground NC No Internal Connection PIN DESCRIPTION 16-PIN SOP (300 mil) HOLD# VCC NC NC NC NC CS# SO SCLK SI NC NC NC NC GND WP#/ACC

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D BLOCK DIAGRAM Address Generator Memory Array Y -Decoder X-Decoder additional 256Kb Data Register SRAM Buffer SI CS#, ACC, WP#,HOLD# SCLK Clock Generator State Machine Mode Logic Sense Amplifier HV Generator Output Buffer SO

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D DATA PROTECTION The MX25L12805D are designed to offer protection against accidental erasure or programming caused by spurious system level signals that may exist during power transition. During power up the device automatically resets the state machine in the Read mode. In addition, with its control register architecture, alteration of the memory contents only occurs after successful completion of specific command sequences. The device also incorporates several features to prevent inadvertent write cycles resulting from VCC power-up and power-down transition or system noise.  Power-on reset and tPUW: to avoid sudden power switch by system power supply transition, the power-on reset and tPUW (internal timer) may protect the Flash.  Valid command length checking: The command length will be checked whether it is at byte base and completed on byte boundary.  Write Enable (WREN) command: WREN command is required to set the Write Enable Latch bit (WEL) before other command to change data. The WEL bit will return to reset stage under following situation: - Power-up - Write Disable (WRDI) command completion - Write Status Register (WRSR) command completion - Page Program (PP) command completion - Sector Erase (SE) command completion - Block Erase (BE) command completion - Chip Erase (CE) command completion  Software Protection Mode (SPM): by using BP0-BP3 bits to set the part of Flash protected from data change.  Hardware Protection Mode (HPM): by using WP# going low to protect the BP0-BP3 bits and SRWD bit from data change.  Deep Power Down Mode: By entering deep power down mode, the flash device also is under protected from writing all commands except Release from deep power down mode command (RDP) and Read Electronic Signature command (RES).  Advanced Security Features: there are some protection and securuity features which protect content from inadvertent write and hostile access. I. Block lock protection - The Software Protected Mode (SPM) use (BP3, BP2, BP1, BP0) bits to allow part of memory to be protected as read only. The proected area definition is shown as table of "Protected Area Sizes", the protected areas are more flexible which may protect various area by setting value of BP0-BP3 bits. Please refer to table of "protected area sizes". - The Hardware Proteced Mode (HPM) use WP#/ACC to protect the (BP3, BP2, BP1, BP0) bits and SRWD bit. II. Additional 512-bit secured OTP for unique identifier: to provide 512-bit one-time program area for setting device unique serial number - Which may be set by factory or system customer. Please refer to table 3. 512-bit secured OTP definition. - Security register bit 0 indicates whether the chip is locked by factory or not. - To program the 512-bit secured OTP by entering 512-bit secured OTP mode (with ENSO command), and going through normal program procedure, and then exiting 512-bit secured OTP mode by writing EXSO command. - Customer may lock-down the customer lockable secured OTP by writing WRSCUR(write security register) command

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D to set customer lock-down bit1 as "1". Please refer to table of "security register definition" for security register bit definition and table of "512-bit secured OTP definition" for address range definition. - Note: Once lock-down whatever by factory or customer, it cannot be changed any more. While in 512-bit secured OTP mode, array access is not allowed. Address range Size Standard Customer Lock Factory Lock xxxx00~xxxx0F 128-bit ESN (electrical serial number) Determined by customer xxxx10~xxxx3F 384-bit N/A 512-bit Secured OTP Definition

1. The device is ready to accept a Chip Erase instruction if, and only if, all Block Protect (BP3, BP2, BP1, BP0) are 0.

Table 1. Protected Area Sizes

Table 2. COMMAND DEFINITION Note 2: It is not recommoded to adopt any other code not in the command definition table, which will potentially emter the hidden mode.

Table 3. Memory Organization

4095 FFF000h FFFFFFh

4080 FF0000h FF0FFFh

4079 FEF000h FEFFFFh

4064 FE0000h FE0FFFh

4063 FDF000h FDFFFFh

4048 FD0000h FD0FFFh

4047 FCF000h FCFFFFh

4032 FC0000h FC0FFFh

4031 FBF000h FBFFFFh

4016 FB0000h FB0FFFh

4015 FAF000h FAFFFFh

4000 FA0000h FA0FFFh

Figure 3. Serial Modes Supported

1. Before a command is issued, status register should be checked to ensure device is ready for the intended operation.
2. When incorrect command is inputted to this LSI, this LSI becomes standby mode and keeps the standby mode until

next CS# falling edge. In standby mode, SO pin of this LSI should be High-Z.

1. When correct command is inputted to this LSI, this LSI becomes active mode and keeps the active mode until next
2. Input data is latched on the rising edge of Serial Clock(SCLK) and data shifts out on the falling edge of SCLK. The

difference of Serial mode 0 and mode 3 is shown as Figure 3.

1. For the following instructions: RDID, RDSR, RDSCUR, READ, FAST_READ, RES and REMS the shifted-in instruction

go high exactly at the byte boundary; otherwise, the instruction will be rejected and not executed.

1. During the progress of Write Status Register, Program, Erase operation, to access the memory array is neglected and

not affect the current operation of Write Status Register, Program, Erase.

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D COMMAND DESCRIPTION (1) Write Enable (WREN) The Write Enable (WREN) instruction is for setting Write Enable Latch (WEL) bit. For those instructions like PP, SE, BE, CE, and WRSR, which are intended to change the device content, should be set every time after the WREN instruction setting the WEL bit. The sequence of issuing WREN instruction is: CS# goes low-> sending WREN instruction code-> CS# goes high. (see Figure 12) (2) Write Disable (WRDI) The Write Disable (WRDI) instruction is for re-setting Write Enable Latch (WEL) bit. The sequence of issuing WRDI instruction is: CS# goes low-> sending WRDI instruction code-> CS# goes high. (see Figure 13) The WEL bit is reset by following situations: - Power-up - Write Disable (WRDI) instruction completion - Write Status Register (WRSR) instruction completion - Page Program (PP) instruction completion - Sector Erase (SE) instruction completion - Block Erase (BE) instruction completion - Chip Erase (CE) instruction completion (3) Read Identification (RDID) The RDID instruction is for reading the manufacturer ID of 1-byte and followed by Device ID of 2-byte. The MXIC Manufacturer ID is C2(hex), the memory type ID is 20(hex) as the first-byte device ID, and the individual device ID of second-byte ID is as followings: 18(hex). The sequence of issuing RDID instruction is: CS# goes low-> sending RDID instruction code -> 24-bits ID data out on SO -> to end RDID operation can use CS# to high at any time during data out. (see Figure. 14) While Program/Erase operation is in progress, it will not decode the RDID instruction, so there's no effect on the cycle of program/erase operation which is currently in progress. When CS# goes high, the device is at standby stage.

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D (4) Read Status Register (RDSR) The RDSR instruction is for reading Status Register Bits. The Read Status Register can be read at any time (even in program/erase/write status register condition) and continuously. It is recommended to check the Write in Progress (WIP) bit before sending a new instruction when a program, erase, or write status register operation is in progress. The sequence of issuing RDSR instruction is: CS# goes low-> sending RDSR instruction code-> Status Register data out on SO (see Figure. 15) The definition of the status register bits is as below: WIP bit. The Write in Progress (WIP) bit, a volatile bit, indicates whether the device is busy in program/erase/write status register progress. When WIP bit sets to 1, which means the device is busy in program/erase/write status register progress. When WIP bit sets to 0, which means the device is not in progress of program/erase/write status register cycle. WEL bit. The Write Enable Latch (WEL) bit, a volatile bit, indicates whether the device is set to internal write enable latch. When WEL bit sets to 1, which means the internal write enable latch is set, the device can accept program/erase/write status register instruction. When WEL bit sets to 0, which means no internal write enable latch; the device will not accept program/erase/write status register instruction. The program/erase command will be ignored and not affect value of WEL bit if it is applied to a protected memory area. BP3, BP2, BP1, BP0 bits. The Block Protect (BP3, BP2, BP1, BP0) bits, non-volatile bits, indicate the protected area(as defined in table 1) of the device to against the program/erase instruction without hardware protection mode being set. To write the Block Protect (BP3, BP2, BP1, BP0) bits requires the Write Status Register (WRSR) instruction to be executed. Those bits define the protected area of the memory to against Page Program (PP), Sector Erase (SE), Block Erase (BE) and Chip Erase(CE) instructions (only if all Block Protect bits set to 0, the CE instruction can be executed). SRWD bit. The Status Register Write Disable (SRWD) bit, non-volatile bit, is operated together with Write Protection (WP#) pin for providing hardware protection mode. The hardware protection mode requires SRWD sets to 1 and WP# pin signal is low stage. In the hardware protection mode, the Write Status Register (WRSR) instruction is no longer accepted for execution and the SRWD bit and Block Protect bits (BP3, BP2, BP1, BP0) are read only. bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 SRWD BP3 BP2 BP1 BP0 WEL WIP Status r eserved the level of the level of the level of the level of (write enable (write in progress Register Write protected protected protected protected latch) bit) Protect block block block block 1= status 1=write enable 1=write operation register write (note 1) (note 1) (note 1) (note 1) 0=not write 0=not in write disable enable operation Note: 1. see the table "Protected Area Sizes".

The WRSR instruction has no effect on b6, b1, b0 of the status register. and sets 0 when Write Status Register Cycle is completed, and the Write Enable Latch (WEL) bit is reset. Table 4. Protection Modes

1. As defined by the values in the Block Protect (BP3, BP2, BP1, BP0) bits of the Status Register, as shown in Table 1.

As the above table showing, the summary of the Software Protected Mode (SPM) and Hardware Protected Mode (HPM).

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D Note: If SRWD bit=1 but WP# is low, it is impossible to write the Status Register even if the WEL bit has previously been set. It is rejected to write the Status Register and not be executed. Hardware Protected Mode (HPM): - When SRWD bit=1, and then WP# is low (or WP# is low before SRWD bit=1), it enters the hardware protected mode (HPM). The data of the protected area is protected by software protected mode by BP3, BP2, BP1, BP0 and hardware protected mode by the WP# to against data modification. Note: to exit the hardware protected mode requires WP# driving high once the hardware protected mode is entered. If the WP# pin is permanently connected to high, the hardware protected mode can never be entered; only can use software protected mode via BP3, BP2, BP1, BP0. (6) Read Data Bytes (READ) The read instruction is for reading data out. The address is latched on rising edge of SCLK, and data shifts out on the falling edge of SCLK at a maximum frequency fR. The first address byte can be at any location. The address is automatically increased to the next higher address after each byte data is shifted out, so the whole memory can be read out at a single READ instruction. The address counter rolls over to 0 when the highest address has been reached. The sequence of issuing READ instruction is: CS# goes low-> sending READ instruction code-> 3-byte address on SI -> data out on SO-> to end READ operation can use CS# to high at any time during data out. (see Figure. 17) (7) Read Data Bytes at Higher Speed (FAST_READ) The FAST_READ instruction is for quickly reading data out. The address is latched on rising edge of SCLK, and data of each bit shifts out on the falling edge of SCLK at a maximum frequency fC. The first address byte can be at any location. The address is automatically increased to the next higher address after each byte data is shifted out, so the whole memory can be read out at a single FAST_READ instruction. The address counter rolls over to 0 when the highest address has been reached. The sequence of issuing FAST_READ instruction is: CS# goes low-> sending FAST_READ instruction code-> 3-byte address on SI-> 1-dummy byte address on SI->data out on SO-> to end FAST_READ operation can use CS# to high at any time during data out. (see Figure. 18) While Program/Erase/Write Status Register cycle is in progress, FAST_READ instruction is rejected without any impact on the Program/Erase/Write Status Register current cycle. (8) Sector Erase (SE) The Sector Erase (SE) instruction is for erasing the data of the chosen sector to be "1". The instruction is used for any 4K-byte sector and 1K-byte parameter sector while parameter sectors are enable. A Write Enable (WREN) instruction must execute to set the Write Enable Latch (WEL) bit before sending the Sector Erase (SE). Any address of the sector (see table 3) is a valid address for Sector Erase (SE) instruction. The CS# must go high exactly at the byte boundary (the latest eighth of address byte been latched-in); otherwise, the instruction will be rejected and not executed. Address bits [Am-A12] (Am is the most significant address) select the sector address. The sequence of issuing SE instruction is: CS# goes low -> sending SE instruction code-> 3-byte address on SI -> CS# goes high. (see Figure 20)

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D The self-timed Sector Erase Cycle time (tSE) is initiated as soon as Chip Select (CS#) goes high. The Write in Progress (WIP) bit still can be check out during the Sector Erase cycle is in progress. The WIP sets 1 during the tSE timing, and sets 0 when Sector Erase Cycle is completed, and the Write Enable Latch (WEL) bit is reset. If the page is protected by BP3, BP2, BP1, BP0 bits, the Sector Erase (SE) instruction will not be executed on the page. (9) Block Erase (BE) The Block Erase (BE) instruction is for erasing the data of the chosen block to be "1". The instruction is used for 64K- byte sector erase operation. A Write Enable (WREN) instruction must execute to set the Write Enable Latch (WEL) bit before sending the Block Erase (BE). Any address of the block (see table 3) is a valid address for Block Erase (BE) instruction. The CS# must go high exactly at the byte boundary (the latest eighth of address byte been latched-in); otherwise, the instruction will be rejected and not executed. The sequence of issuing BE instruction is: CS# goes low -> sending BE instruction code-> 3-byte address on SI -> CS# goes high. (see Figure 21) The self-timed Block Erase Cycle time (tBE) is initiated as soon as Chip Select (CS#) goes high. The Write in Progress (WIP) bit still can be check out during the Sector Erase cycle is in progress. The WIP sets 1 during the tBE timing, and sets 0 when Sector Erase Cycle is completed, and the Write Enable Latch (WEL) bit is reset. If the page is protected by BP3, BP2, BP1, BP0 bits, the Block Erase (BE) instruction will not be executed on the page. (10) Chip Erase (CE) The Chip Erase (CE) instruction is for erasing the data of the whole chip to be "1". A Write Enable (WREN) instruction must execute to set the Write Enable Latch (WEL) bit before sending the Chip Erase (CE). Any address of the sector (see table 3) is a valid address for Chip Erase (CE) instruction. The CS# must go high exactly at the byte boundary( the latest eighth of address byte been latched-in); otherwise, the instruction will be rejected and not executed. The sequence of issuing CE instruction is: CS# goes low-> sending CE instruction code-> CS# goes high. (see Figure 22) The self-timed Chip Erase Cycle time (tCE) is initiated as soon as Chip Select (CS#) goes high. The Write in Progress (WIP) bit still can be check out during the Chip Erase cycle is in progress. The WIP sets 1 during the tBE timing, and sets 0 when Chip Erase Cycle is completed, and the Write Enable Latch (WEL) bit is reset. If the chip is protected by BP3, BP2, BP1, BP0 bits, the Chip Erase (CE) instruction will not be executed. It will be only executed when BP3, BP2, BP1, BP0 all set to "0". (11) Page Program (PP) The Page Program (PP) instruction is for programming the memory to be "0". A Write Enable (WREN) instruction must execute to set the Write Enable Latch (WEL) bit before sending the Page Program (PP). If the eight least significant address bits (A7-A0) are not all 0, all transmitted data which goes beyond the end of the current page are programmed from the start address if the same page (from the address whose 8 least significant address bits (A7-A0) are all 0). The CS# must keep during the whole Page Program cycle. The CS# must go high exactly at the byte boundary( the latest eighth of address byte been latched-in); otherwise, the instruction will be rejected and not executed. If more than 256 bytes are sent to the device, the data of the last 256-byte is programmed at the request page and previous data will be disregarded. If less than 256 bytes are sent to the device, the data is programmed at the request address of the page without effect on other address of the same page. The sequence of issuing PP instruction is: CS# goes low-> sending PP instruction code-> 3-byte address on SI-> at least

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D (12) Deep Power-down (DP) The Deep Power-down (DP) instruction is for setting the device on the minimizing the power consumption (to entering the Deep Power-down mode), the standby current is reduced from ISB1 to ISB2). The Deep Power-down mode requires the Deep Power-down (DP) instruction to enter, during the Deep Power-down mode, the device is not active and all Write/ Program/Erase instruction are ignored. When CS# goes high, it's only in standby mode not deep power-down mode. It's different from Standby mode. The sequence of issuing DP instruction is: CS# goes low-> sending DP instruction code-> CS# goes high. (see Figure 23) Once the DP instruction is set, all instruction will be ignored except the Release from Deep Power-down mode (RDP) and Read Electronic Signature (RES) instruction. (RES instruction to allow the ID been read out). When Power-down, the deep power-down mode automatically stops, and when power-up, the device automatically is in standby mode. For RDP instruction the CS# must go high exactly at the byte boundary (the latest eighth bit of instruction code been latched-in); otherwise, the instruction will not executed. As soon as Chip Select (CS#) goes high, a delay of tDP is required before entering the Deep Power-down mode and reducing the current to ISB2. (13) Release from Deep Power-down (RDP), Read Electronic Signature (RES) The Release from Deep Power-down (RDP) instruction is terminated by driving Chip Select (CS#) High. When Chip Select (CS#) is driven High, the device is put in the Stand-by Power mode. If the device was not previously in the Deep Power- down mode, the transition to the Stand-by Power mode is immediate. If the device was previously in the Deep Power-down mode, though, the transition to the Stand-by Power mode is delayed by tRES2, and Chip Se-lect (CS#) must remain High for at least tRES2(max), as specified in Table 6. Once in the Stand-by Power mode, the device waits to be selected, so that it can receive, decode and execute instructions. RES instruction is for reading out the old style of 8-bit Electronic Signature, whose values are shown as table of ID Definitions. This is not the same as RDID instruction. It is not recommended to use for new design. For new design, please use RDID instruction. Even in Deep power-down mode, the RDP, RES, and REMS are also allowed to be executed, only except the device is in progress of program/erase/write cycle; there's no effect on the current program/erase/write cycle in progress. The sequence is shown as Figure 24,25. The RES instruction is ended by CS# goes high after the ID been read out at least once. The ID outputs repeatedly if continuously send the additional clock cycles on SCLK while CS# is at low. If the device was not previously in Deep Power- down mode, the device transition to standby mode is immediate. If the device was previously in Deep Power-down mode, there's a delay of tRES2 to transit to standby mode, and CS# must remain to high at least tRES2(max). Once in the standby mode, the device waits to be selected, so it can be receive, decode, and execute instruction. The RDP instruction is for releasing from Deep Power Down Mode. 1-byte on data on SI-> CS# goes high. (see Figure 19) The self-timed Page Program Cycle time (tPP) is initiated as soon as Chip Select (CS#) goes high. The Write in Progress (WIP) bit still can be check out during the Page Program cycle is in progress. The WIP sets 1 during the tPP timing, and sets 0 when Page Program Cycle is completed, and the Write Enable Latch (WEL) bit is reset. If the page is protected by BP3, BP2, BP1, BP0 bits, the Page Program (PP) instruction will not be executed.

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D (14) Read Electronic Manufacturer ID & Device ID (REMS) The REMS instruction is an alternative to the Release from Power-down/Device ID instruction that provides both the JEDEC assigned manufacturer ID and the specific device ID. The REMS instruction is very similar to the Release from Power-down/Device ID instruction. The instruction is initiated by driving the CS# pin low and shift the instruction code "90h" followed by two dummy bytes and one bytes address (A7~A0). After which, the Manufacturer ID for MXIC (C2h) and the Device ID are shifted out on the falling edge of SCLK with most significant bit (MSB) first as shown in Figure 26. The Device ID values are listed in Table of ID Definitions on page 20. If the one-byte address is initially set to 01h, then the device ID will be read first and then followed by the Manufacturer ID. The Manufacturer and Device IDs can be read continuously, alternating from one to the other. The instruction is completed by driving CS# high. Table of ID Definitions: 1. RDID: manufacturer ID memory type memory density MX25L12805D C2 20 18 2. RES: electronic ID MX25L12805D 17 3. REMS: manufacturer ID device ID MX25L12805D C2 17 (15) Enter Secured OTP (ENSO) The ENSO instruction is for entering the additional 512-bit secured OTP mode. The additional 512-bit secured OTP is independent from main array, which may use to store unique serial number for system identifier. After entering the Secured OTP mode, and then follow standard read or program, procedure to read out the data or update data. The Secured OTP data cannot be updated again once it is lock-down. The sequence of issuing ENSO instruction is: CS# goes low-> sending ENSO instruction to enter Secured OTP mode -> CS# goes high. Please note that WRSR/WRSCUR commands are not acceptable during the access of secure OTP region, once security OTP is lock down, only read related commands are valid. (16) Exit Secured OTP (EXSO) The EXSO instruction is for exiting the additional 512-bit secured OTP mode. The sequence of issuing EXSO instruction is: CS# goes low-> sending EXSO instruction to exit Secured OTP mode-> CS# goes high.

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D (17) Read Security Register (RDSCUR) The RDSCUR instruction is for reading the value of Security Register bits. The Read Security Register can be read at any time (even in program/erase/write status register/write security register condition) and continuously. The sequence of issuing RDSCUR instruction is : CS# goes low-> send ing RDSCUR instruction -> Security Register data out on SO-> CS# goes high. The definition of the Security Register bits is as below: Secured OTP Indicator bit. The Secured OTP indicator bit shows the chip is locked by factory before ex- factory or not. When it is "0", it indicates non- factory lock; "1" indicates factory- lock. Lock-down Secured OTP (LDSO) bit. By writing WRSCUR instruction, the LDSO bit may be set to "1" for customer lock- down purpose. However, once the bit is set to "1" (lock-down), the LDSO bit and the 512-bit Secured OTP area cannot be update any more. While it is in 512-bit secured OTP mode, array access is not allowed. Table of Security Register Definition (18) Write Security Register (WRSCUR) The WRSCUR instruction is for changing the values of Security Register Bits. Unlike write status register, the WREN instruction is not required before sending WRSCUR instruction. The WRSCUR instruction may change the values of bit1 (LDSO bit) for customer to lock-down the 512-bit Secured OTP area. Once the LDSO bit is set to "1", the Secured OTP area cannot be updated any more. The sequence of issuing WRSCUR instruction is :CS# goes low-> sending WRSCUR instruction -> CS# goes high. The CS# must go high exactly at the boundary; otherwise, the instruction will be rejected and not executed. bit7 bit6 bit5 bit4 bit3 bit1 bit0 xxxxx LDSO (indicate if lock-down Secrured OTP indicator bit reserved reserved reserved reserved reserved 0 = not lock- down 1 = lock-down (cannot program/erase OTP) 0 = non- factory lock 1 = factory lock volatile bit volatile bit volatile bit volatile bit volatile bit bit2 x volatile bit non-volatile bit non-volatile bit

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D POWER-ON STATE The device is at below states when power-up: - Standby mode ( please note it is not deep power-down mode) - Write Enable Latch (WEL) bit is reset The device must not be selected during power-up and power-down stage unless the VCC achieves below correct level: - VCC minimum at power-up stage and then after a delay of tVSL - GND at power-down Please note that a pull-up resistor on CS# may ensure a safe and proper power-up/down level. An internal power-on reset (POR) circuit may protect the device from data corruption and inadvertent data change during power up state. When VCC is lower than VWI (POR threshold voltage value), the internal logic is reset and the flash device has no response to any command. For further protection on the device, after VCC reaching the VWI level, a tPUW time delay is required before the device is fully accessible for commands like write enable(WREN), page program (PP), sector erase(SE), block erase (BE), chip erase(CE) and write status register(WRSR). If the VCC does not reach the VCC minimum level, the correct operation is not guaranteed. The write, erase, and program command should be sent after the below time delay: - tPUW after VCC reached VWI level - tVSL after VCC reached VCC minimum level The device can accept read command after VCC reached VCC minimum and a time delay of tVSL, even time of tPUW has not passed. Please refer to the figure of "power-up timing". Note: - To stabilize the VCC level, the VCC rail decoupled by a suitable capacitor close to package pins is recommended.(generally around 0.1uF) - At power-down stage, the VCC drops below VWI level, all operations are disable and device has no response to any command. The data corruption might occur during the stage while a write, program, erase cycle is in progress.

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D NOTICE: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is stress rating only and functional operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended period may affect reliability. 2. Specifications contained within the following tables are subject to change. 3. During voltage transitions, all pins may overshoot to 4.6V or -0.5V for period up to 20ns. RATING VALUE Ambient Operating Temperature -40 ° C to 85° C for Industrial grade Storage Temperature -55 ° C to 125°C Applied Input Voltage -0.5V to 4.6V Applied Output Voltage -0.5V to 4.6V VCC to Ground Potential -0.5V to 4.6V ABSOLUTE MAXIMUM RATINGS ELECTRICAL SPECIFICATIONS CAPACITANCE TA = 25°°°°° C, f = 1.0 MHz SYMBOL PARAMETER MIN. TYP MAX. UNIT CONDITIONS CIN Input Capacitance 10 pF VIN = 0V COUT Output Capacitance 10 pF VOUT = 0V Figure 4.Maximum Negative Overshoot Waveform Figure 5. Maximum Positive Overshoot Waveform -0.5V 20ns 4.6V 3.6V 20ns

Table 5. DC CHARACTERISTICS (Temperature = -40°°°°° C to 85°°°°° C, VCC = 2.7V ~ 3.6V)

1. Typical values at VCC = 3.3V, T = 25° C. These currents are valid for all product versions (package and speeds).
2. Typical value is calculated by simulation.

Table 6. AC CHARACTERISTICS (Temperature = -40°°°°° C to 85°°°°° C, VCC = 2.7V ~ 3.6V)

1. tCH + tCL must be greater than or equal to 1/ fC
2. Value guaranteed by characterization, not 100% tested in production.
3. Expressed as a slew-rate.
4. Only applicable as a constraint for a WRSR instruction when SRWD is set at 1.
5. Test condition is shown as Figure 5.

contains 00h (all Status Register bits are 0). Note: 1. These parameters are characterized only. Table 7. Power-Up Timing and VWI Threshold

Figure 18. Read Data Bytes at Higher Speed (FAST_READ) Sequence (Command 0B)

24 BIT ADDRESS

Figure 19. Page Program (PP) Sequence (Command 02) Figure 20. Sector Erase (SE) Sequence (Command 20) Note: SE command is 20(hex).

Figure 21. Block Erase (BE) Sequence (Command D8) Note: BE command is D8(hex). Figure 22. Chip Erase (CE) Sequence (Command 60 or C7) Figure 23. Deep Power-down (DP) Sequence (Command B9) Note: CE command is 60(hex) or C7(hex).

Figure 24. Release from Deep Power-down and Read Electronic Signature (RES) Sequence

3 Dummy Bytes

Figure 25. Release from Deep Power-down (RDP) Sequence (Command AB)

Figure 26. Read Electronic Manufacturer & Device ID (REMS) Sequence (Command 90)

2 Dummy Bytes

Figure 27. Power-up Timing

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D RECOMMENDED OPERATING CONDITIONS At Device Power-Up AC timing illustrated in Figure A is recommended for the supply voltages and the control signals at device power-up. If the timing in the figure is ignored, the device may not operate correctly. Figure A. AC Timing at Device Power-Up Notes : 1. Sampled, not 100% tested. 2. For AC spec tCHSL, tSLCH, tDVCH, tCHDX, tSHSL, tCHSH, tSHCH, tCHCL, tCLCH in the figure, please refer to "AC CHARACTERISTICS" table. Symbol Parameter Notes Min. Max. Unit tVR VCC Rise Time 1 20 500000 us/V SCLK SI CS# VCC MSB IN SO tDVCH High Impedance LSB IN tSLCH tCHDX tCHCL tCLCH tSHCH tSHSL tCHSHtCHSL tVR VCC(min) GND

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D ERASE AND PROGRAMMING PERFORMANCE MIN. MAX. Input Voltage with respect to GND on ACC -1.0V 11.5V Input Voltage with respect to GND on all power pins, SI, CS# -1.0V 2 VCCmax Input Voltage with respect to GND on SO -1.0V VCC + 1.0V Current -100mA +100mA Includes all pins except VCC. Test conditions: VCC = 3.0V, one pin at a time. LATCH-UP CHARACTERISTICS PARAMETER Min. TYP. (1) Max. (2) UNIT Write Status Register Cycle Time 40 100 ms Sector Erase Time 60 300 ms Block Erase Time 0.7 2 s Chip Erase Time 80 200 s Chip Erase Time (at ACC mode) 50 125 s Byte Program Time (via page program command) 9 300 us Page Program Time 1.4 5 ms Page Program Time (at ACC mode) 1.4 5 ms Erase/Program Cycle 100,000 cycles Note: 1. Typical program and erase time assumes the following conditions: 25° C, 3.3V, and checker board pattern. 2. Under worst conditions of 85° C and 2.7V. 3. System-level overhead is the time required to execute the first-bus-cycle sequence for the programming command. 4. The maximum chip programming time is evaluated under the worst conditions of 0C, VCC=3.0V, and 100K cycle with 90% confidence level. 5. Erase/Program cycles comply with JEDEC JESD-47E & A117A standard.

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D

ORDERING INFORMATION

PART NO. SERIAL CLOCK READ STANDBY Temperature PACKAGE Remark RATE CURRENT(max.) CURRENT(max.) MX25L12805DMI-20G 50MHz 25mA 20uA -40~85°C 16-SOP Pb-free

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D PART NAME DESCRIPTION MX 25 L 20M I G OPTION: G: Pb-free SPEED: 20: 50MHz TEMPERATURE RANGE: I: Industrial (-40˚C to 85˚C) PACKAGE: M: 300mil 16-SOP DENSITY & MODE: 12805D: 128Mb TYPE: L: 3V DEVICE: 25: Serial Flash 12805D

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D

PACKAGE INFORMATION

P/N: PM1310 REV. 1.1, OCT. 01, 2008 MX25L12805D

REVISION HISTORY

Revision No. Description Page Date

1.0 Removed "Advanced Information" on page 1 P1 FEB/26/2008

1.1 Revised sector erase time spec from 90ms(typ.) to 60ms(typ.) P24,37 OCT/01/2008

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