74ACT161MTCX

Counter Dividers Overview

The onsemi 74ACT161MTCX is a high-speed synchronous modulo-16 binary counter housed in a 16-lead TSSOP package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature from -40°C to +85°C. The device features asynchronous Master Reset, synchronous presettable loading, and two Count Enable inputs (CEP, CET). Outputs source or sink 24 mA with typical count rates up to 125 MHz.

Counter Dividers Feature Summary

• Synchronous counting and parallel data loading capabilities
• TTL-compatible inputs for direct interface with TTL logic systems
• Asynchronous Master Reset input that overrides all other control signals

Counter Dividers Applications

• Programmable frequency dividers
• Synchronous multistage counter configurations
• Digital timing and sequencing circuits

Counter Dividers Procurement Notes

Verify the specific ordering code suffix 'X' confirms tape and reel packaging rather than tube. Confirm the manufacturer origin as Fairchild Semiconductor or onsemi depending on current corporate structure. Ensure the component meets RoHS compliance standards required for your assembly process before finalizing procurement orders.

Counter Dividers Selection Notes

Select this component when synchronous operation with TTL-compatible inputs is required. The ACT series offers reduced ICC compared to AC variants. Verify that the 4.5 V to 5.5 V supply voltage range aligns with system power rails. Consider the 125 MHz maximum count rate for high-speed digital applications requiring precise timing control.

Counter Dividers Part Context

This part belongs to the 74AC/ACT161 family of synchronous presettable binary counters. It shares functional characteristics with the 74AC161 but includes TTL-compatible inputs characteristic of the ACT series. The MTCX designation indicates the Thin Shrink Small Outline Package variant supplied in tape and reel format for automated surface-mount assembly.

Counter Dividers Replacement Considerations

MC74ACT161DG is a confirmed substitute part number.