Datasheet

© Copyright 2005-2011 Future Technology Devices International Ltd
2
Document Reference No.: FT_000051
UM232R USB - Serial UART Development Module
Datasheet Version 1.1
Clearance No.: FTDI# 125
Table of Contents
1 Introduction .................................................................... 1
2 Typical Application .......................................................... 3
2.1 Driver Support .......................................................................... 3
2.2 Features .................................................................................... 4
3 FT232RL Features and Enhancement .............................. 5
3.1 Key Features ............................................................................. 5
4 UM232R Pin Out and Signal Descriptions ........................ 7
4.1 UM232R Pin Out ........................................................................ 7
4.2 Signal Descriptions ................................................................... 8
4.3 Jumper Configuration Options .................................................. 9
4.4 CBUS Signal Options ............................................................... 10
5 Module Dimensions ....................................................... 11
6 FT232RL Device Characteristics and Ratings ................. 12
6.1 Absolute Maximum Ratings ..................................................... 12
6.2 DC Characteristics ................................................................... 12
6.3 EEPROM Reliability Characteristics ......................................... 15
6.4 Internal Clock Characteristics ................................................. 15
7 Module Configurations .................................................. 16
7.1 BUS Powered Configuration .................................................... 16
7.2 Self Powered Configuration .................................................... 17
7.3 USB Bus Powered with Power Switching Confiduration .......... 19
7.4 Bus Powered with 3.3V Logic Drive / IO Supply Voltage ......... 21
8 UM232R Module Circuit Schematic ................................ 22
9 Internal EEPROM Configuration ..................................... 23
10 Contact Information ...................................................... 25
Appendix A – List of Tables and Figures .......................................... 26
Appendix B – Revision History ......................................................... 27