MC74HCT245ADTR2G

Overview

The MC74HCT245ADTR2G is an octal bus transceiver manufactured by onsemi. It operates within a supply voltage range of 4.5 V to 5.5 V and features LSTTL-compatible inputs. The device provides three-state outputs for bidirectional data transfer between buses. It utilizes high-performance silicon-gate CMOS technology and includes direction control and active-low output enable functions.

Feature Summary

• Octal 3-state noninverting bus transceiver design
• LSTTL compatible input levels for TTL/NMOS interfacing
• Bidirectional data flow controlled by direction pin
• High impedance state via active-low output enable

Applications

• Two-way asynchronous communication between data buses
• Level conversion for interfacing TTL or NMOS outputs to High Speed CMOS inputs
• General purpose bus driver applications

Procurement Notes

Verify the complete part number including suffixes such as TR2G, which indicates tape and reel packaging. Confirm RoHS compliance and lead times with authorized distributors. Ensure the application environment matches the specified operating temperature and voltage ranges before procurement.

Selection Notes

Select this component when bidirectional octal data transfer is required with LSTTL compatibility. It serves as a direct pinout replacement for LS245 devices. Consider the 4.5 V to 5.5 V operating range and three-state output capabilities for system integration.

Part Context

This part belongs to the MC74HCT245A series of bus transceivers from onsemi. It is designed for high-speed digital logic applications requiring robust interface capabilities between different logic families. The device supports standard industrial temperature ranges and complies with JEDEC standards.

Replacement Considerations

MC74HCT245ADT

FAQ

What is the function of the direction control pin?

The direction control pin determines whether data flows from port A to port B or from port B to port A.

How does the output enable pin operate?

The output enable pin is active-low and places the I/O ports into high-impedance states when asserted.