74ACT161PC

Counter Dividers Overview

The Fairchild Semiconductor 74ACT161PC is a synchronous 4-bit binary counter housed in a 16-pin DIP package. It operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range of -40°C to 85°C. The device features parallel load capability, asynchronous reset, and count-enable controls. Key electrical parameters include a maximum static current of 2 µA, output drive currents of 24mA for both high and low states, and a typical propagation delay of 9ns at 5V with a 50pF load.

Counter Dividers Feature Summary

• Synchronous counting architecture with internal carry look-ahead for high-speed operation
• Parallel load functionality allowing programmable preset values
• Asynchronous master-reset input that overrides all other inputs
• TTL/NMOS compatible input levels for direct interfacing

Counter Dividers Applications

• High-speed synchronous modulo-16 binary counting
• Programmable frequency dividers
• Cascaded multi-stage counter designs
• Level conversion between TTL or NMOS outputs and High Speed CMOS inputs

Counter Dividers Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm the specific package variant matches project requirements. Check RoHS compliance status against current environmental regulations. Ensure the part number suffix corresponds to the desired packaging type. Review datasheet revisions for any functional updates prior to integration.

Counter Dividers Selection Notes

Select this component when synchronous 4-bit binary counting is required with parallel load capabilities. It is suitable for applications needing fast counting speeds and internal carry look-ahead. Consider the 16-pin DIP package for through-hole mounting needs. Verify voltage compatibility with the 4.5V to 5.5V operating range. Evaluate thermal performance within the specified industrial temperature limits.

Counter Dividers Part Context

This component belongs to the 74ACT logic family, which combines the speed of Advanced Schottky TTL with the low power consumption of CMOS technology. It is functionally similar to the 74LS161 but offers faster switching speeds. The 74ACT series is designed for high-performance digital systems requiring reliable binary counting and data storage operations.

Counter Dividers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.