27C512T MAXWELL | Alldatasheet

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All data sheets are subject to change without notice (858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com 512K (64K x 8-Bit) OTP EPROM 27C512T ©2003 Maxwell Technologies All rights reserved.

06.24.03 Rev 4

FEATURES:

  • 64K x 8-bit OTP EPROM organization R AD-PAK® radiation-hardened against natural space radiation  Total dose hardness: - > 100 Krad (Si), depending upon space mission  Excellent Single Event Effects: -SELTH > 80 MeV/mg/cm2 -SEUTH > 80 Mev/mg/cm2  Package: -32 pin RAD-PAK® flat pack -32 pin RAD-PAK® DIP  Fast access time: - 120, 150, 200 ns (max)  Low power dissipation: - Active mode: 100 mW/MHz (typ) - Standby mode: 10 µ W (typ)  Programming power supply: - V PP = 12.5 V + 0.3 V  One-time programmable  Pin arrangement - JEDEC standard byte-wide EPROM - Flash memory and mask ROM compatible DESCRIPTION: Maxwell Technologies’ 27C512T high density 512-Kilobit one- time programmable electrically programmable read only mem- ory microcircuit features a greater than 100 krad (Si) total dose tolerance, depending upon space mission. The 27C512T features fast address times and low power dissipation. The 27C512T offers high speed programming using page pro- gramming mode. Maxwell Technologies' patented R AD-PAK® packaging technol- ogy incorporates radiation shielding in the microcircuit pack- age. It eliminates the need for box shielding while providing the required radiation shielding for a lifetime in orbit or space mission. In a GEO orbit, R AD-PAK provides greater than 100 krad (Si) radiation dose tolerance. This product is available with screening up to Class S. x-Decoder 1024 x 1022 Memory Matrix Input Data Control Y- Gating Y - Decoder H A0-A4 A10-A11OE PGM A5-A9 VCC VPP VSS A12-A16 I/O0 I/O15 H CE : High Threshhold Inverter Logic Diagram

TABLE 1. 27C512T PINOUT DESCRIPTION

22 CE Chip Enable

24 OE Output Enable

16 GND Ground

31 PGM Program

32 V CC +5V Power Supply

TABLE 2. 27C512T ABSOLUTE MAXIMUM RATINGS

  1. V IN, VOUT, and VID min = -1.0V for pulse width < 20 ns.

TABLE 3. DELTA LIMITS

TABLE 4. 27C512T RECOMMENDED OPERATING CONDITIONS

  1. V IL min = -1.0V for pulse width < 50 ns.
  2. V IH max = VCC + 1.5V for pulse width < 20 ns.

TABLE 5. 27C512T CAPACITANCE 1 TABLE 6. 27C512T DC ELECTRICAL CHARACTERISTICS FOR READ OPERATION

TABLE 7. 27C512T AC E LECTRICAL CHARACTERISTICS FOR READ OPERATION 1,2

  1. t DF is defined as the time at which the output becomes an open circuit and data is no longer driven.
  2. AC electrical parameters for programming operations are not tested. These are guaranteed by design.

TABLE 8. 27C512T AC ELECTRICAL CHARACTERISTICS FOR PROGRAMMING OPERATION 1,2

  1. t DF is defined as the time at which the output becomes an open circuit and data is no longer driven.
  2. AC electrical parameters for programming operations are not tested. These are guaranteed by design.

TABLE 9. 27C512T DC E LECTRICAL CHARACTERISTICS FOR PROGRAMMING OPERATIONS1,2,3,4

  1. V CC must be applied before VPP and removed after VPP.
  2. V PP must not exceed 13V, including overshoot.
  3. Do not change V PP from VIL to 12.5V or 12.5V to VIL when CE = low.
  4. DC electrical parameters for programming operations are not tested. These are guaranteed by design.
  5. Device reliability may be adversely affected if the device is installed or removed while V PP = 12.5V.
  1. If V IH is over the specified maximum value, programming operation can not be guaranteed.
  2. V IL min = -0.6V for pulse width < 20 ns.

TABLE 10. 27C512T MODE SELECTION

FIGURE 1. READ TIMING WAVEFORM

FIGURE 2. PAGE PROGRAMMING FLOWCHART

FIGURE 3. PAGE PROGRAMMING TIMING WAVEFORM

FIGURE 4. BYTE PROGRAMMING FLOWCHART

FIGURE 5. BYTE PROGRAMMING TIMING WAVEFORM

12All data sheets are subject to change without notice ©2003 Maxwell Technologies All rights reserved. 512K (64K x 8-Bit) OTP EPROM 27C512T Note: All dimensions in inches

32 PIN RAD-PAK® DUAL IN LINE PACKAGE1

  1. Standard Product Screening Flow MIL-STD-883, Method 2001, Constant Acceleration: For this package type Constant Acceleration is 3000g’s. SYMBOL DIMENSION MIN NOM MAX A -- 0.215 0.240 b 0.014 0.018 0.026 b2 0.045 0.050 0.065 c 0.008 0.010 0.018 D -- 1.600 1.680 E 0.510 0.590 0.620 eA 0.600 BSC eA/2 0.300 BSC e 0.100 BSC L 0.125 0.145 0.155 Q 0.015 0.035 0.070 S1 0.005 0.025 -- S2 0.005 -- -- N3 2

13All data sheets are subject to change without notice ©2003 Maxwell Technologies All rights reserved. 512K (64K x 8-Bit) OTP EPROM 27C512T Note: All dimensions in inches

32 PIN RAD-PAK® FLAT PACKAGE

A 0.198 0.210 0.220 b 0.015 0.017 0.020 c 0.004 0.005 0.009 D -- 0.820 0.830 E 0.472 0.480 0.488 E1 -- -- 0.498 E2 0.300 0.310 -- E3 0.030 0.085 -- e 0.050 BSC L 0.355 0.365 0.375 Q 0.055 0.065 0.075 S1 0.005 0.027 -- N3 2

14All data sheets are subject to change without notice ©2003 Maxwell Technologies All rights reserved. 512K (64K x 8-Bit) OTP EPROM 27C512T Important Notice: These data sheets are created using the chip manufacturers published specifications. Maxwell Technologies verifies functionality by testing key parameters either by 100% testing, sample testing or characterization. The specifications presented within these data sheets represent the latest and most accurate information available to date. However, these specifications are subject to change without notice and Maxwell Technologies assumes no responsibility for the use of this information. Maxwell Technologies’ products are not authorized for use as critical components in life support devices or systems without express written approval from Maxwell Technologies. Any claim against Maxwell Technologies must be made within 90 days from the date of shipment from Maxwell Tech- nologies. Maxwell Technologies’ liability shall be limited to replacement of defective parts.

15All data sheets are subject to change without notice ©2003 Maxwell Technologies All rights reserved. 512K (64K x 8-Bit) OTP EPROM 27C512T Feature Option Details27C512T RP X X -XX Access Time Screening Flow Package Radiation Feature Base Product Nomenclature 12 = 120 ns 15 = 150 ns 20 = 200 ns Monolithic S = Maxwell Class S B = Maxwell Class B I = Industrial (testing @ -55°C, +25°C, +125°C) E = Engineering (testing @ +25°C) D = Dual In-line Package (DIP) F = Flat Pack RP = R AD-PAK® package 512K (64K x 8-Bit) OTP EPROM