CD74HCT40103E

Counter Dividers Overview

The CD74HCT40103E is an 8-bit synchronous binary down counter manufactured by Harris Corporation. It operates within a supply voltage range of 4.5V to 5.5V and supports a maximum count rate of 14 MHz. The device features both synchronous and asynchronous preset capabilities, allowing for flexible initialization. It is designed for cascading in either synchronous or ripple modes and offers high fanout performance. The component is housed in a 16-pin DIP package.

Counter Dividers Feature Summary

• Supports synchronous or asynchronous preset functionality for flexible initialization.
• Capable of cascading in either synchronous or ripple counting modes.
• Provides high fanout capability for driving multiple loads.

Counter Dividers Applications

• Digital timing circuits requiring precise down-counting sequences.
• Frequency division applications in digital systems.
• Event counting mechanisms in industrial control equipment.

Counter Dividers Procurement Notes

Verify the manufacturer origin, as Harris Corporation assets were acquired by Texas Instruments. Confirm the specific revision level against the datasheet SCHS221D. Ensure the package matches the 16-DIP specification. Check RoHS compliance status if required for modern assembly processes. Validate pin compatibility with existing PCB footprints.

Counter Dividers Selection Notes

Select this component when an 8-bit down counter with HCT logic levels is required. It is suitable for designs needing 5V operation with standard TTL-compatible inputs. Consider the 14 MHz speed limit for high-frequency applications. Evaluate the need for synchronous versus asynchronous reset based on system timing requirements.

Counter Dividers Part Context

This part belongs to the 74HCT series of logic integrated circuits. It is functionally compatible with other 74HCT binary counters. The device is often used in conjunction with decoders and registers in complex digital logic designs. It represents a standard solution for 8-bit counting tasks in legacy and industrial electronics.

Counter Dividers Replacement Considerations

Check for direct equivalents such as the CD74HC40103 or NXP 74HCT40103D. Verify pinout and electrical characteristics match before substitution. Note that some variants may have different temperature ranges or packaging options.