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SN74AHC245N

TISN74AHC245N

Texas Instruments
Faster AHC family alternative when higher switching speed is required while keeping a PDIP option.
Active3,851 in stock
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Overview

The SN74AHC245N is a high-speed octal bus transceiver featuring 3-state outputs and a non-inverting logic type. Operating from a 2V to 5.5V supply, it facilitates two-way asynchronous communication between data buses. This device is designed for through-hole mounting in a 20-PDIP package.

Why Choose This Part

This transceiver offers a high switching speed, making it suitable for faster bus applications while retaining the convenience of a through-hole PDIP package. Its wide 2V to 5.5V supply voltage range allows for flexible integration into various systems. The device also supports down-voltage translation from 5V to 3.3V and features slow edge rates to minimize output ringing, enhancing signal quality.

Applications

Servers
Used in server backplanes for high-speed data transfer between different subsystems and for bus isolation.
PCs and Notebooks
Enables robust data communication within computer systems, such as between the CPU and peripheral controllers.
Network Switches
Provides efficient signal buffering and direction control for data lines in network switching equipment.
Telecom Infrastructures
Manages data flow in telecommunications equipment, ensuring reliable signal integrity over bus lines.
Electronic Points of Sale (EPOS)
Facilitates data exchange between various modules within EPOS terminals, such as card readers and display units.
Wearable Health and Fitness Devices
Can be integrated into more complex wearable systems requiring communication between multiple ICs, offering voltage translation capabilities.

Key Specifications

Logic Type Transceiver, Non-Inverting
Output Type 3-State
Mounting Type Through Hole
Package / Case 20-DIP (0.300", 7.62mm)
Voltage - Supply 2V ~ 5.5V
Number of Elements 1
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 20-PDIP
Current - Output High, Low 8mA, 8mA
Number of Bits per Element 8

Getting Started

To get started with the SN74AHC245N, connect its VCC and GND pins to a stable power supply within the 2V to 5.5V range. Use the DIR pin to control data flow direction and the OE (Output Enable) pin to enable or disable the 3-state outputs. Integrate it directly into a breadboard or custom PCB for prototyping and use standard digital logic design practices.

Also Consider

SN74LS245N TITexas Instruments - This is an older, lower-speed bipolar logic alternative if very high speed is not critical and legacy compatibility is desired.
SN74HC245N TITexas Instruments - A standard CMOS alternative with similar voltage range but typically lower speed than AHC, suitable for general-purpose applications.
74LVC245APW Nexperia - A surface-mount (TSSOP) LVC family alternative offering higher speed and lower voltage operation, if a smaller footprint is acceptable.
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