N74F161AD,623

Counter Dividers Overview

The N74F161AD,623 is a 4-bit binary counter from the 74F series manufactured by NXP USA Inc. It features synchronous counting and loading with an asynchronous Master Reset (MR) input. The device operates on a positive edge-triggered clock and includes two count enable inputs for cascading. It utilizes internal carry look-ahead for high-speed serial expansion. The component is housed in a 16-pin plastic SO package (SOT109-1). Recommended operating conditions specify a supply voltage of 4.5V to 5.5V and a commercial temperature range of 0°C to +70°C.

Counter Dividers Feature Summary

• Synchronous operation with simultaneous flip-flop clocking on the positive-going edge
• Asynchronous Master Reset function that clears outputs regardless of clock state
• Internal carry look-ahead circuitry designed for high-speed serial cascading applications

Counter Dividers Applications

• High-speed synchronous counting circuits
• Multi-stage binary counters using serial cascading
• Frequency division logic modules

Counter Dividers Procurement Notes

Verify the specific suffix '623' against current manufacturer documentation to confirm packaging details and availability status. Confirm the commercial temperature rating aligns with system requirements. Ensure the 16-SOIC footprint matches the target PCB layout constraints before finalizing procurement orders.

Counter Dividers Selection Notes

Select this component when an asynchronous reset mechanism is required for immediate output clearing. The 74F series offers higher speed performance compared to standard logic families. Verify that the 1mA high-level and 20mA low-level output drive capabilities meet the fan-out requirements of the connected load circuitry.

Counter Dividers Part Context

This part belongs to the 74F family of integrated circuits, which are known for high-speed digital logic operations. The base model 74F161A is a 4-bit binary counter. The 'D' designation indicates the small outline package variant, while the ',623' suffix typically denotes specific tape and reel packaging configurations provided by the manufacturer.

Counter Dividers Replacement Considerations

Check for direct pin-compatible equivalents within the same logic family. Verify that any substitute maintains the asynchronous reset characteristic, as the 74F163A variant uses a synchronous reset which alters functional behavior.