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SN74LVC245APWR

TISN74LVC245APWR

Texas Instruments
Transceiver, Non-Inverting 1 Element 8 Bit per Element 3-State Output 20-TSSOP
NRND73,367 in stock
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Overview

The SN74LVC245APWR is an 8-bit non-inverting bus transceiver designed for asynchronous communication between data buses. It operates over a wide voltage range of 1.65V to 3.6V and features 5V tolerant inputs, making it an ideal choice for translating between different logic voltage levels. This device includes a 3-state output control that can place the bus lines in a high-impedance state during power-down or system standby.

Why Choose This Part

This transceiver supports partial-power-down mode (Ioff), which prevents damaging backflow current when the device is powered off. It provides a high drive strength of 24mA while maintaining low static power consumption of 10uA. The inputs are 5.5V tolerant regardless of the VCC supply, allowing for versatile mixed-mode signal operation.

Applications

Voltage Level Translation
Down-translating 5V logic signals to 3.3V, 2.5V, or 1.8V systems to ensure safe interfacing between legacy and modern ICs.
Bus Isolation
Using the 3-state outputs to isolate segments of a data bus during power-down or when multiple masters are present.
Directional Data Buffering
Driving long PCB traces or high-capacitance loads in 8-bit parallel interfaces like memory or LCD buses.

Key Specifications

Logic Type Transceiver, Non-Inverting
Output Type 3-State
Mounting Type Surface Mount
Package / Case 20-TSSOP (0.173", 4.40mm Width)
Voltage - Supply 1.65V ~ 3.6V
Number of Elements 1
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 20-TSSOP
Current - Output High, Low 24mA, 24mA
Number of Bits per Element 8

Getting Started

To use this device, connect VCC to your target logic level (1.65V to 3.6V) and pull the Output Enable (OE) pin low to activate the transceiver. The DIR pin determines the direction of data flow from A to B or B to A. For prototyping, this TSSOP-20 package can be used with a standard 0.65mm pitch breakout board or integrated directly into a PCB with decoupling capacitors near the VCC pin.

Part of 74LVC Logic family » SN74LVC245

SN74LVC245 Family

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

Part Number Package Stock
SN74LVC245APWR (this part) TSSOP-20 73,367
SN74LVC245A SSOP-20 2,446
SN74LVC245ARGYR VFQFN-20 864
Also available as: SN74LVC245AN

Also Consider

74LVC245ABQ Nexperia - Provides identical transceiver functionality in a smaller leadless DHVQFN20 package for space-constrained designs.

Categories

Interface ICs > Level Shifters