DM74AS161M

Counter Dividers Overview

The DM74AS161M is a synchronous 4-bit binary counter manufactured by Fairchild Semiconductor. It belongs to the AS (Advance Schottky) logic series and utilizes an ion-implanted process for improved performance. The device features internal carry look-ahead to support high-speed counting applications. It operates with a positive-edge triggered clock input and includes synchronous parallel load capabilities. The component is housed in a 16-lead plastic dual-in-line package.

Counter Dividers Feature Summary

• Synchronous operation ensures all flip-flops are clocked simultaneously, eliminating output counting spikes associated with asynchronous counters.
• Internal carry look-ahead circuitry enables fast counting speeds suitable for high-performance designs.
• Advanced oxide-isolated, ion-implanted Schottky TTL process provides switching performance with reduced power dissipation compared to standard Schottky counterparts.

Counter Dividers Applications

• High-speed counting designs requiring precise timing synchronization
• Digital systems utilizing n-bit cascading configurations via decoded carry outputs
• Memory address generation or timing sequence control in microprocessor systems

Counter Dividers Procurement Notes

Verify the specific manufacturer designation when sourcing this component, as Fairchild Semiconductor's logic portfolio has undergone corporate restructuring. Confirm that the ordering code matches the exact suffix requirements for the plastic dual-in-line package variant. Ensure compatibility with existing Advance Schottky logic families if replacing legacy components in established designs.

Counter Dividers Selection Notes

Select this component when design requirements demand faster switching speeds than standard LS logic while maintaining lower power consumption than original Schottky devices. The synchronous architecture is essential for applications where ripple effects must be avoided. Verify voltage supply ranges and temperature specifications against the target operational environment before integration.

Counter Dividers Part Context

This part is a member of the SN74AS/DM74AS family of integrated circuits. It serves as a functional equivalent to other 4-bit synchronous binary counters within the broader 74-series logic ecosystem. The Advance Schottky technology bridges the gap between speed and power efficiency, making it suitable for complex digital logic implementations requiring reliable synchronous data handling.

Counter Dividers Replacement Considerations

The DM74AS161N is a pin-compatible alternative from the same manufacturer offering identical functionality in a different package style. Other manufacturers produce functionally similar parts under the 74AS161 designation, though electrical characteristics may vary slightly.