PL2303 ETC1
Document overview
- Manufacturer or author: Provided By www.digicamel.com(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 11
Technical content
Release Date: July, 2002 ds_pl2303_v14 PL-2303 Product Datasheet - 2 - Document Revision 1.3
Revision History
1.4 • Add Windows CE .NET support feature August 29, 2002 1.3 • Buffer for upstream and downstream data flow – change from 96 to 256 bytes August 01, 2002 1.2 • For Chip Version H (date code 0206)
- Add OS Support in Features Section
- Correct default values in Table 5. Device Configuration Register
- Add Suspend Current in DC Characteristics Section
- Move Operating Temperature in DC Characteristics to new section July 03, 2002
Release Date: July, 2002 ds_pl2303_v14 PL-2303 Product Datasheet - 3 - Document Revision 1.3 PL-2303 USB to Serial RS232 Bridge Controller
Features
/head2right Full compliance with the USB Specification v1.1 and USB CDC v1.1 /head2right Support the RS232 Serial interface /head2right Support automatic handshake mode /head2right Support Remote wake-up and power management /head2right 256 bytes buffer each for upstream and downstream data flow /head2right Support default ROM or external EEPROM for device configuration /head2right On chip USB transceiver /head2right On chip crystal oscillator running at 12M Hz /head2right Supports Windows 98/SE, ME, 2000, XP, Windows CE3.0, CE .NET, Linux, and Mac OS /head2right 28 Pins SOIC package OSC228 OSC127
26 PLL_TEST
VDD_3V317 16 DM 15 DP GND_3V318 VDD_PLL LD_MODE GND_PLL GND VDD RESET TRI_MODE TXD DTR_N RTS_N VDD_232 RXD RI_N GND VDD DSR_N DCD_N CTS_N SHTD_N EE_CLK EE_DATA SSOP 28 PACKAGE (TOP VIEW)
Release Date: July, 2002 ds_pl2303_v14 PL-2303 Product Datasheet - 4 - Document Revision 1.3 Block Diagram USB Transceiver USB SIE Control Unit RS-232 SERIAL INTERFACE EEPROM INTERFACE OSCILLATOR REGISTER/ CONFIG/ STATUS/ CONTROL CLOCK SYNTHESIZE DOWN STREAM BUFFER UP STREAM BUFFER I2C Bus Serial Port USB Port
baud rate can be achieved compared to the legacy UART controller. they can connect to any RS-232 devices. Table 1. Pins Description
1 TXD O Data output to Serial port
2 DTR_N O Data Terminal Ready, active low
3 RTS_N O Request To Send, active low
connected to the same power level of the RS-232 interface. information. Refer to future revisions for updates.
5 RXD I Data input from Serial Bus
6 RI_N I Ring Indicator, active low
7 GND P Ground
8 VDD P Power
9 DSR_N I Data Set Ready, active low
10 DCD_N I Data Carrier Detect, active low
11 CTS_N I Clear To Send, active low
12 SHTD_N O Shut Down RS232 Transceiver
14 EE_DATA I/O Serial ROM data signal
15 DP I/O USB DPLUS signal
16 DM I/O USB DMINUS signal
19 RESET I System Reset
20 VDD P Power
21 GND P Ground
Release Date: July, 2002 ds_pl2303_v14 PL-2303 Product Datasheet - 6 - Document Revision 1.3 Pin No. Name Type Description
22 TRI_STATE I Tri-State
This pin is referred after reset. High: RS-232 output inactive during Suspend. Low: RS-232 output tri-state during Suspend.
23 LD_MD/
This pin is input during reset. Pull high with a 220K resistor to indicate the heavy load USB device (500mA). Pull down with a 220K resistor to indicate the light load USB device 100mA). After reset, this pin becomes output. It output the inverse of SHTD_N.
24 VDD_PLL P 5V power for PLL
25 GND_PLL P Ground for PLL
26 PLL_TEST I PLL test mode control
27 OSC1 I Crystal oscillator input
28 OSC2 O Crystal oscillator output
Type: I – Input signal O – Output signal I/O – Bi-directional signal P – Power/Ground Supported Data Formats and Programmable Baud Rate Generator The PL2303 USB-to-RS232 bridge controller supports versatile data formats and has a programmable baud rate generator. The supported data formats are shown on Table 2. The programmable baud rate generator supports baud rates up to 1.2M bps as shown in Table 3. Table 2. Supported Data Formats
Description
1.5 Parity type None Odd Even Mark Space Data bits 5, 6, 7, 8, or 16
Table 3. Baud Rate Setting EEPROM is shown in Table 4 below. Table 4. EEPROM Content 1:0 EECHK When the EEPROM is programmed, these two bytes is configured as 067B. information will be loaded as the default parameters.
Table 5. Device Configuration Register
23 RESERVED Reserved 0
22 TRI_OUT RS-232 Output Tri-state:
21 RW_MODE Remote Wakeup Mode:
20 WURX Enable Wake Up Trigger on RXD:
1 – Enable Wake Up Trigger on RXD state changes.
19 WUDSR Enable Wake Up Trigger on DSR:
1 – Enable Wake Up Trigger on DSR state changes.
18 WURI Enable Wake Up Trigger on RI:
1 – Enable Wake Up Trigger on RI state changes.
17 WUDCD Enable Wake Up Trigger on DCD:
1 – Enable Wake Up Trigger on DCD state changes.
16 WUCTS Enable Wake Up Trigger on CTS:
1 – Enable Wake Up Trigger on CTS state changes.
15 RESERVED Always set to one 1
14 RESERVED Always set to zero 0
13 RESERVED Always set to zero 0
12 RW_INH Remote Wake Inhibit:
EMPTY; otherwise Drive RTS inactive. EMPTY; otherwise Drive RTS active.
0 RSPDM RS-232 Transceiver Shut-Down Mode:
Release Date: July, 2002 ds_pl2303_v14 PL-2303 Product Datasheet - 9 - Document Revision 1.3
Electrical Characteristics
Power Supply Voltage -0.3 to 6.0 V Input Voltage -0.3 to VDD+0.3 V Output Voltage -0.3 to VDD+0.3 V Storage Temperature -55 to 150 o C DC Characteristics Parameter Symbol Min Typ Max Units Power Supply Current I DD 0.5 19 24 mA Input Voltage L o w H i g h VIL VIH 0.7* VDD 0.3* VDD V V Output Voltage L o w H i g h VOL VOH 3.5 0.4 V V Schmitt Trigger Threshold Voltage*1 Negative going Positive going Vt- Vt+ 1.10 1.87 V V Output Voltage, 3.3V*2 L o w H i g h VOL VOH 2.4 0.4 V V Input Leakage Current I L -1 -- 1 uA Tri-state Leakage Current I oz -10 -- 10 uA Input Capacitance C IN -- 3 -- Pf Output Capacitance C OUT -- 3 -- Pf Bi-directional Buffer Capacitance C BID -- 3 -- Pf Operating Voltage Range -- 4.75 5 5.25 V Suspend Current I SUS -- 400 490 uA *1. RS232 pins RXD_I, RI_I, DSR_I, DCD_I, CTS_I are 5V TTL Schmitt Trigger inputs. *2. RS232 pins TXD, DTR_N, RTS_N are 3.3V tri-state outputs. Temperature Characteristics Parameter Symbol Min Typ Max Units Operating Temperature -- -40 -- 85 o C Junction Operation Temperature T J 0 25 115 o C
Release Date: July, 2002 ds_pl2303_v14 PL-2303 Product Datasheet - 10 - Document Revision 1.3 USB Transceiver Characteristics Parameter Symbol Min Typ Max Units Rise and Fall Times: ( 1 0 %―90%) ( 9 0 %―10%) TR TF ns ns Cross Point V CR 1.3 -- 2.0 V Output Impedance R D 23 28 33 ohm High Level Output V OH 2.8 -- -- V Low Level Output V OL -- -- 0.7 V High Level Input V IH 2.0 -- -- V Low Level Input V IL -- -- 0.8 V
- CL: 50pf Clock Characteristics P a r a m e t e r Min Typ Max Units Frequency of Operation 11.976 12.000 12.024 MHz Clock Period 83.1 83.3 83.5 ns Duty Cycle 45 50 55 % Package Dimensions (28-Pin SSOP) Millimeters Inch Symbol Min Nom Max Min Nom Max b 0.22 0.38 0.009 0.015 R1 0.09 0.004 A 2.0 0.079 e 0.65 0.0256 L1 1.25 0.050 A1 0.05 0.020
Release Date: July, 2002 ds_pl2303_v14 PL-2303 Product Datasheet - 11 - Document Revision 1.3 Outline Diagram DETAIL A be A R1 L1 L 0.25 DETAIL A D E