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SN74LVC8T245PWR

TISN74LVC8T245PWR

Texas Instruments
Translation Transceiver 1 Element 8 Bit per Element 3-State Output 24-TSSOP
NRND36,309 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The SN74LVC8T245PWR is an 8-bit, dual-supply non-inverting bus transceiver that enables bidirectional voltage level translation between different logic domains. It features two independent power rails, allowing for seamless communication between components operating at voltages ranging from 1.65V to 5.5V.

Why Choose This Part

The dual-rail design allows for maximum flexibility as the A-port and B-port can track different supply voltages independently. It provides robust performance with 32mA drive strength and 3-state outputs, while the Vcc isolation feature ensures that if either Vcc input is at ground, both ports enter a high-impedance state.

Applications

Mixed-Voltage Logic Interfacing
Connecting 1.8V or 3.3V microcontrollers to 5V legacy peripherals or industrial sensors.
Bus Isolation
Using the 3-state output capability to isolate segments of a data bus when a specific subsystem is not in use.
High-Drive Signal Buffering
Providing up to 32mA of source/sink current to drive capacitive loads or long PCB traces across logic boundaries.
System Partial-Power-Down
Utilizing the Ioff feature to prevent backflow current when one power rail is disabled while the other remains active.

Key Specifications

Logic Type Translation Transceiver
Output Type 3-State
Mounting Type Surface Mount
Package / Case 24-TSSOP (0.173", 4.40mm Width)
Voltage - Supply 1.65V ~ 5.5V
Number of Elements 1
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 24-TSSOP
Current - Output High, Low 32mA, 32mA
Number of Bits per Element 8

Getting Started

When designing with this transceiver, ensure that VccA and VccB are decoupled with 0.1uF capacitors placed close to the pins. The DIR pin controls data flow direction, while the OE (Output Enable) pin must be pulled high to place the I/Os in a high-impedance state during power-up or power-down sequences.

Part of SN74 Level Translators family » SN74LVC8T245

SN74LVC8T245 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
SN74LVC8T245PWR (this part) TSSOP-24 36,309
SN74LVC8T245 TFSOP-24 29,518

Also Consider

TXB0108PWR TITexas Instruments - Provides auto-direction sensing, eliminating the need for a DIR control pin in low-drive applications.

Categories

Interface ICs > Level Shifters