MM74C947N

Counter Dividers Overview

The MM74C947N is a monolithic CMOS integrated circuit manufactured by National Semiconductor. It functions as a 4-digit up/down counter, decoder, and driver designed for direct display interfacing. The device features a 16-input/16-output interface architecture utilizing CMOS technology compatible with TTL logic levels. It operates within a standard supply voltage range of 3V to 15V. The component is housed in a 40-pin Dual In-line Package (DIP) suitable for through-hole mounting on printed circuit boards.

Counter Dividers Feature Summary

• Integrates counting, decoding, and driving capabilities into a single monolithic unit
• Supports bidirectional counting operations via dedicated control inputs
• Provides direct drive capability for visual display indicators
• Features extended input protection schemes for robust operation

Counter Dividers Applications

• Direct interfacing with numeric display panels
• Digital counting systems requiring integrated decoding
• Bidirectional data tracking circuits
• Industrial control panel indicators

Counter Dividers Procurement Notes

Verify the specific manufacturer source, as this part number has been produced by multiple entities including National Semiconductor and Maxim Integrated. Confirm package integrity and pinout compatibility before integration. Ensure the supplier provides valid traceability documentation. Check for RoHS compliance status if required by your manufacturing standards. Validate that the received component matches the exact suffix specifications.

Counter Dividers Selection Notes

Select this component when a combined counter-decoder-driver solution is required to reduce board space. It is suitable for applications needing direct display interfacing without external logic gates. Consider the 40-pin DIP footprint for mechanical constraints. Evaluate power consumption requirements against the CMOS technology characteristics. Ensure the operating voltage range aligns with the system's power supply rails.

Counter Dividers Part Context

This component belongs to the 74C series of CMOS logic devices, originally developed by National Semiconductor. The series was designed to offer high-speed performance with low power consumption compared to earlier TTL counterparts. The MM74C947N specifically addresses the need for integrated display driving functions. Later production may be attributed to Maxim Integrated following corporate acquisitions.

Counter Dividers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided reference material. Verify pin-to-pin compatibility with any alternative components from other manufacturers. Ensure functional equivalence in counting direction and display decoding logic.