74HCT163D,652

Counter Dividers Overview

The Nexperia 74HCT163D,653 is a synchronous presettable 4-bit binary counter housed in a 16-SO plastic small outline package. It operates with a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature from -40 °C to +125 °C. The device features synchronous counting and loading triggered by the positive-going edge of the clock input. It includes two count enable inputs for cascading, a synchronous master reset, and an internal look-ahead carry output.

Counter Dividers Feature Summary

• Synchronous operation with simultaneous flip-flop clocking on the positive-going edge
• Internal look-ahead carry simplifies serial cascading of counters
• Synchronous reset allows modification of maximum count using minimal external logic

Counter Dividers Applications

• Modulo-N counter design
• Digital timing circuits
• Frequency division applications

Counter Dividers Procurement Notes

Verify the specific ordering suffix against current Nexperia documentation to confirm package type and availability status. Confirm that the component meets required JEDEC standards and ESD protection specifications for the intended application environment before finalizing procurement.

Counter Dividers Selection Notes

Select this component when TTL-level input compatibility is required within a CMOS system. Ensure the design accommodates the specified synchronous reset and parallel load functionality. Verify that the operating temperature range and power dissipation limits align with the target environmental conditions.

Counter Dividers Part Context

This part belongs to the 74HCT163 family of synchronous 4-bit binary counters manufactured by Nexperia USA Inc. It is functionally compatible with other devices in the series but distinguished by its HCT logic level requirements and SO16 packaging configuration.

Counter Dividers Replacement Considerations

CD74HCT163M Texas Instruments

Counter Dividers FAQ

How does the synchronous reset feature benefit circuit design?

The synchronous reset enables designers to modify the maximum count of the counter using only one external NAND gate, simplifying the overall circuit complexity.

What determines the maximum clock frequency for cascaded counters?

The maximum clock frequency for cascaded counters is determined by the CP to TC propagation delay and the CEP to CP set-up time.