Datasheet

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