SN74ALVCH245DW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALVCH245DW is an octal bus transceiver with 3-state outputs manufactured by Texas Instruments. It operates from a supply voltage range of 1.65 V to 3.6 V and features a maximum propagation delay of 3.4 ns at 3.3 V. The device provides ±24-mA output drive capability at 3.3 V and includes active bus-hold circuitry on data inputs to eliminate the need for external pullup or pulldown resistors. Latch-up performance exceeds 100 mA per JESD 78, Class II. It is housed in a 20-pin SOIC (DW) package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports asynchronous communication between data buses with direction control via DIR input
• Active bus-hold circuitry maintains valid logic states on unused or undriven inputs
• Provides high-impedance isolation when output-enable (OE) input is asserted

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication between data buses
• Memory and memory mapping
• Clock drivers and buffered oscillators

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and reel specifications. Confirm that the component status remains active production before finalizing procurement plans. Ensure compatibility with the intended operating temperature range of -40°C to 85°C.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring low-voltage operation between 1.65 V and 3.6 V. Consider the 3.4 ns propagation delay for timing-sensitive designs. Verify that the required output drive current does not exceed the specified limits for the target supply voltage.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx4ALVCH245 family of octal bus transceivers. It is designed for low-voltage CMOS technology and offers enhanced performance compared to standard LVCMOS devices. The DW suffix indicates a plastic small-outline integrated circuit (SOIC) package with 20 pins.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for SN74ALVCH245DWR as a tape-and-reel alternative within the same package family. Verify pinout and electrical characteristics against other octal bus transceivers if cross-brand substitution is necessary.