CD74HC40105M

Overview

The CD74HC40105M is a high-speed silicon-gate CMOS device functioning as a 4-bit by 16-word FIFO register. It operates within a supply voltage range of 2V to 6V and supports asynchronous inputs and outputs. The component features independent data paths, expandability in either direction, and reset capability. It includes status indicators for inputs and outputs and provides standard output capability with an ICC category of MSI.

Feature Summary

• Provides 4-bit by 16-word first-in-first-out memory storage
• Supports independent asynchronous input and output operations
• Includes dedicated status indicators for monitoring input and output states

Applications

• Data buffering in digital communication systems
• Temporary storage for asynchronous data transfer between logic circuits
• Level shifting between different voltage domains

Procurement Notes

Verify the manufacturer designation on the component marking, as Harris Corporation assets were acquired by Texas Instruments. Confirm that the specific suffix 'M' corresponds to the plastic small outline package variant required for your assembly process. Ensure compatibility with HC/UH series logic levels if interfacing with other components from different manufacturers.

Selection Notes

Select this component when a compact FIFO solution is needed for 4-bit wide data streams. It is suitable for applications requiring asynchronous data handling without complex clock management. Consider the MSI classification for integration into larger logic designs. Verify that the operating temperature range meets the environmental requirements of the final system.

Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices. It is pin-compatible with the older 40105B series, facilitating upgrades in existing designs. The device is manufactured using silicon-gate technology to ensure low power consumption and high noise immunity typical of the HC family.