N74F161AN,602

Counter Dividers Overview

The N74F161AN,602 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 DIP package and supports a commercial operating 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 other control signals
• Internal carry look-ahead circuitry to simplify high-speed serial cascading
• Parallel data loading capability enabled by the Parallel Enable input

Counter Dividers Applications

• High-speed synchronous counting circuits
• Multi-stage digital counters using serial cascading
• Frequency division logic designs
• Digital timing sequence generation

Counter Dividers Procurement Notes

Verify the specific suffix '602' against current manufacturer documentation to confirm packaging and environmental compliance details. Confirm availability status as this product line may have been superseded or discontinued. Ensure the selected variant matches the required commercial temperature range and DIP package dimensions for your design constraints.

Counter Dividers Selection Notes

Select this component when an asynchronous reset is required for immediate output clearing. Choose this part over the 74F163A if synchronous reset functionality is not needed. Consider the 74F series speed characteristics and power consumption relative to other logic families. Verify that the 16-pin DIP package fits the intended PCB layout and assembly process.

Counter Dividers Part Context

This device belongs to the 74F (FAST) logic family, known for high-speed performance. It is functionally related to the 74F163A, which differs primarily in its synchronous reset mechanism. The N74F161AN,602 represents the commercial grade version of the 74F161A, designed for standard industrial applications requiring reliable binary counting operations.

Counter Dividers Replacement Considerations

The N74F163AN,602 serves as a functional substitute if synchronous reset behavior is acceptable instead of asynchronous reset. Other 74F series binary counters should be evaluated for pin compatibility and electrical specifications before substitution.

Counter Dividers FAQ

What is the difference between the reset functions of the 74F161A and 74F163A?

The 74F161A features an asynchronous Master Reset that clears outputs immediately upon activation, whereas the 74F163A uses a synchronous reset that occurs on the next clock edge.

How does the Terminal Count (TC) output behave during cascading?

The TC output goes High when the counter reaches its maximum value (1111) and CET is High. It can be used to enable the next cascaded stage but is subject to decoding spikes and should not be used as a clock signal.