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User's Guide
SCEU007–March 2012
TXB0302 Evaluation Module
1 Highlighted Features
• 2-Bit Bidirectional Voltage-Level Translator with Automatic Direction Sensing
• Breakout Board Style EVM for Prototype and Evaluation
2 General Description
The TXB0302 is a 2-bit noninverting translator uses two separate configurable power-supply rails. The A
port is designed to track VCCA. VCCA accepts any supply voltage from 0.9 V to 3.6 V. The B port is
designed to track VCCB. VCCB accepts any supply voltage from 0.9 V to 3.6 V. This allows for low-
voltage bidirectional translation between 1-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V and 3.3-V voltage nodes. For the
TXB0302, when the output-enable (OE) input is low, all outputs are placed in the high-impedance state.
The TXB0302 EVM was created to allow simplified evaluation and prototyping without the need for full
board development. This EVM provides peripheral header style pads for probing and signal connection to
each device pin. Headers are labeled with the corresponding pin name. The pin number assignments are
given in Table 1.
Table 1. Pin Out
J1 J2
1 VCCA VCCB
2 A1 B1
3 A2 B2
4 GND OE
1
SCEU007–March 2012 TXB0302 Evaluation Module
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