CD74HCT40105E

Overview

The CD74HCT40105E is a 74HCT series shift register manufactured by Harris Corporation. It features four independent 4-bit shift registers, totaling 16 bits of storage capacity. The device operates on a supply voltage range of 4.5 V to 5.5 V and supports a wide operating temperature range from -55°C to 125°C. It is housed in a 16-pin DIP package.

Feature Summary

• Contains four independent 4-bit shift registers for serial-to-parallel or parallel-to-serial data conversion
• Compatible with standard CMOS logic levels via HCT input structure
• Capable of operation across an extended industrial temperature range

Applications

• Serial data acquisition systems
• Parallel output expansion for microcontrollers
• Digital signal processing interfaces

Procurement Notes

Verify the manufacturer origin carefully, as this component was originally produced by Harris Corporation but later acquired by Texas Instruments. Ensure the specific suffix matches the required package type and that RoHS compliance status aligns with project requirements, as older Harris stock may not meet current environmental standards.

Selection Notes

Select this component when multiple independent 4-bit shift operations are required within a single package. It serves as a direct replacement for other 74HCT40105 variants. Consider the 16-pin DIP form factor for through-hole prototyping or legacy board designs requiring this specific footprint.

Part Context

This part belongs to the 74HCT logic family, designed for high-speed CMOS operation with TTL-compatible inputs. Originally developed by Harris Semiconductor, production rights were transferred to Texas Instruments following corporate acquisitions. The CD74HCT40105E represents the commercial-grade version of this widely used shift register architecture.