MC74HCT245ADT

Overview

The MC74HCT245ADT is an octal bus transceiver manufactured by onsemi, belonging to the HCT logic series. It features eight non-inverting channels with three-state outputs, designed for bidirectional asynchronous communication between data buses. The device operates within a supply voltage range of 4.5 V to 5.5 V and accepts TTL/NMOS compatible input levels. It utilizes silicon-gate CMOS technology to provide high-performance switching capabilities while maintaining low power consumption. The component is housed in a 20-pin SOIC package.

Feature Summary

• Provides bidirectional data transfer capability between two independent data buses through direction control logic.
• Features three-state outputs that allow electrical isolation of the I/O ports when disabled.
• Ensures compatibility with LSTTL loads and interfaces directly with CMOS, NMOS, and TTL systems.

Applications

• Interfacing TTL or NMOS outputs to High Speed CMOS inputs
• Bidirectional asynchronous communication between data buses
• Level conversion applications requiring LSTTL compatible inputs

Procurement Notes

Verify the specific suffix against the manufacturer's current datasheet to confirm package type and environmental compliance status. Ensure the ordering information matches the required pinout and electrical specifications for the target application design.

Selection Notes

Select this component when interfacing between different logic families requiring level translation. The HCT series ensures compatibility with standard TTL inputs while offering CMOS output drive capabilities suitable for driving multiple loads.

Part Context

This part belongs to the MC74HCT245 family of octal bus transceivers. It shares pinout compatibility with the LS245 device, facilitating direct replacement in existing designs that require improved speed or lower power consumption characteristics inherent to CMOS technology.

Replacement Considerations

MC74HCT245ADTG