74ACT163MTCX

Counter Dividers Overview

The onsemi 74ACT163MTCX is a high-speed synchronous modulo-16 binary counter housed in a 16-lead Thin Shrink Small Outline Package (TSSOP). It operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature from -40°C to +85°C. The device features TTL-compatible inputs, synchronous preset capability, and outputs capable of sourcing or sinking 24 mA. Typical count rates reach 125 MHz with a maximum clock frequency of 105 MHz at 5.0V.

Counter Dividers Feature Summary

• Synchronous counting and loading mechanism triggered by the rising edge of the clock pulse.
• Outputs provide robust drive capability by sourcing and sinking up to 24 mA.
• Includes dedicated Terminal Count output for versatile synchronous multistage counter expansion.

Counter Dividers Applications

• Programmable frequency dividers
• Synchronous multistage counters
• Digital timing circuits

Counter Dividers Procurement Notes

Verify that the ordering code includes the 'X' suffix to confirm tape and reel packaging availability. Ensure the component meets RoHS compliance requirements for your specific manufacturing process. Cross-reference the datasheet revision date to confirm electrical characteristics match your design specifications.

Counter Dividers Selection Notes

Select this component when TTL-compatible logic levels are required alongside AC speed performance. The synchronous reset feature allows precise control over the counting sequence without asynchronous glitches. Verify that the load capacitance does not exceed 50 pF to maintain specified propagation delays and maximum clock frequencies.

Counter Dividers Part Context

This part belongs to the 74AC/ACT family of high-speed CMOS logic devices. It functions as a synchronous presettable binary counter, distinct from asynchronous variants like the 74HC163 which lack synchronous parallel loading. The TSSOP package offers a compact footprint suitable for space-constrained printed circuit board designs.

Counter Dividers Replacement Considerations

MC74ACT163DW

Counter Dividers FAQ

How does the Synchronous Reset input function?

The Synchronous Reset input overrides counting and parallel loading, forcing all outputs LOW on the next rising edge of the clock signal.

Can the Terminal Count output be used as a clock source?

No, the Terminal Count output is subject to decoding spikes due to internal race conditions and should not be used as a clock or asynchronous reset for other components.