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74LVC1T45GW,125

74LVC1T45GW,125

Nexperia
Single-bit direction-controllable level translator useful when you need a very small footprint per signal and explicit direction control.
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Overview

The 74LVC1T45GW is a single-bit, dual-supply translating transceiver that enables bidirectional voltage level translation between 1.2 V and 5.5 V rails. It features a direction control input to manage data flow and high-impedance outputs when either supply rail is at ground, making it ideal for interfacing legacy peripherals with modern low-voltage microcontrollers.

Why Choose This Part

This transceiver offers wide supply voltage flexibility from 1.2 V to 5.5 V on both ports and supports high-speed operation up to 420 Mbps. Its small TSSOP6 footprint and very low standby current of 16 uA make it highly efficient for space-constrained and power-sensitive applications.

Applications

I/O Level Shifting
Translating single-line control signals like PWM or UART TX/RX between 1.8V and 3.3V/5V logic levels.
High-Speed Data Interfacing
Supporting data rates up to 420 Mbps for high-speed digital communication interfaces.
Battery Powered Systems
Utilizing the IOFF circuitry for partial power-down mode to prevent damaging backflow current when the device is powered down.
Isolated Subsystem Control
Providing explicit direction control for single-bit signals in modular hardware designs.

Key Specifications

Data Rate 420Mbps
Output Type Tri-State, Non-Inverted
Channel Type Bidirectional
Mounting Type Surface Mount
Package / Case 6-TSSOP, SC-88, SOT-363
Voltage - VCCA 1.2 V ~ 5.5 V
Voltage - VCCB 1.2 V ~ 5.5 V
Translator Type Voltage Level
Number of Circuits 1
Channels per Circuit 1
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 6-TSSOP

Getting Started

To use this part, connect VCCA and VCCB to your respective logic supply voltages and the DIR pin to a GPIO to control signal direction (Low for B to A, High for A to B). Ensure bypass capacitors are placed close to both VCC pins to maintain signal integrity at high speeds.

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