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Document Reference No.: FT_000202
UM245R USB - Parallel FIFO Development Module Datasheet Version 1.04
Clearance No.: FTDI# 124
Table of Contents
1
2
Introduction .................................................................... 1
Typical Applications ........................................................ 3
2.1
2.2
Driver Support .......................................................................... 3
Features .................................................................................... 4
3
FT245RL Features and Enhancement .............................. 5
3.1
Key Features ............................................................................. 5
4
UM245R Pin Out and Signal Descriptions ........................ 7
4.1
4.2
4.3
4.4
4.5
UM245R Pin Out ........................................................................ 7
Signal Descriptions ................................................................... 8
Jumper Configuration Options .................................................. 9
FT245 FIFO Control Interface Read Cycle Timing Diagrams .... 10
FT245 FIFO Control Interface Write Cycle Timing Diagrams ... 11
5
6
Module Dimensions ....................................................... 12
FT245RL Device Characteristics and Ratings ................. 13
6.1
6.2
6.3
6.4
Absolute Maximum Ratings ..................................................... 13
DC Characteristics ................................................................... 13
EEPROM Reliability Characteristics ......................................... 16
Internal Clock Characteristics ................................................. 17
7
Module Configurations .................................................. 18
7.1
7.2
7.3
7.4
BUS Powered Configuration .................................................... 18
Self Powered Configuration .................................................... 19
USB Bus Powered with Power Switching Confiduration .......... 20
Bus Powered with 3.3V Logic Drive / IO Supply Voltage ......... 21
8
9
UM245R Module Circuit Schematic ................................ 22
Internal EEPROM Configuration..................................... 23
10 Contact Information ...................................................... 24
Appendix A – List of Tables and Figures .......................................... 25
Appendix B – Revision History ......................................................... 26
? Copyright 2009 Future Technology Devices International Ltd
2
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