74VHCT245M

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74VHCT245M is an octal bus transceiver fabricated with silicon gate CMOS technology. It provides bidirectional asynchronous communication between data buses, featuring 3-state outputs and power-down protection on inputs and outputs. The device operates within a DC supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from -40°C to +85°C. Key electrical parameters include a typical propagation delay (tPD) of 5.4 ns at VCC = 5 V with a 50 pF load, and a maximum quiescent supply current (ICC) of 40 µA at 25°C. The component is housed in a TSSOP-20 package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• High-speed operation with low power dissipation comparable to Bipolar Schottky TTL
• Power-down protection allows safe interface between mismatched supply voltages
• Pin and function compatible with standard 74HCT245 logic series

Buffers, Drivers, Receivers, Transceivers Applications

• Bidirectional asynchronous communication between data buses
• Interfacing 5 V systems to 3 V systems
• Connecting two supply systems such as battery backup configurations

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging type and quantity. Confirm RoHS compliance status and lead-free designation requirements for your assembly process. Ensure the selected variant matches the required package dimensions and thermal characteristics for your PCB layout.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing 5 V and 3 V logic families requiring bidirectional data transfer. The VHCT245A offers high speed and low power consumption suitable for general-purpose digital applications. Verify that the input voltage levels are compatible with the driving source logic family to ensure reliable signal transmission across the specified temperature range.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the VHCT245A series of octal bus transceivers manufactured by onsemi. It utilizes advanced silicon gate CMOS technology to achieve performance similar to Bipolar Schottky TTL while maintaining low power dissipation. The device is designed for robust bidirectional data transmission with built-in protection circuits for system reliability.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The datasheet notes pin and function compatibility with the 74HCT245 series. Verify electrical specifications and package dimensions before substituting with equivalent parts from other manufacturers.