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SLCU001 – May 2016
Copyright © 2016, Texas Instruments Incorporated
TRS3122EEVM User's Guide
User's Guide
SLCU001 – May 2016
TRS3122EEVM User's Guide
Abstract
This user's guide describes the functional operation of the TRS3122EEVM Evaluation Module (EVM) for
use as a design reference as well as a general engineering demonstration for the TRS3122E RS-232
Transceiver. Included in this User's Guide are setup instructions, features, a schematic diagram, an
example layout, layout guidelines, and a bill of materials.
Introduction
The TRS3122EEVM is an evaluation module for the TRS3122E device, a 1.8-V high-speed RS-232
transceiver. The module enables device evaluation using the installed DB9 connector and terminal block.
The board interfaces data and control CMOS logic levels on the terminal block to RS-232 levels
supporting data [RX, TX] channels and flow control [RTS, CTS] channels on the DB9 connector.
TRS3122EEVM Board
Features
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Interface with MCUs or processor from 1.65 V up to 5.5 V
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High-speed RS-232 communication, up to 1 Mbps
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Auto-powerdown plus for very low power consumption (1µA) during shutdown
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Robust IEC61000-4-2 qualification provides robust protection from electrostatic discharge events
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DB9 female connector for direct connection with a computer's RS-232 port
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Screw terminals for easy connection for all power and logic signals
