DM74ALS161BMX

Counter Dividers Overview

The DM74ALS161BMX is a synchronous 4-bit binary counter from the Advanced Low-power Schottky (ALS) logic family, manufactured by Fairchild Semiconductor. It features internal carry look-ahead for high-speed counting applications and includes a buffered clock input that triggers flip-flops on the rising edge of the clock waveform. The device supports synchronous presetting and counting operations, eliminating output spikes associated with asynchronous counters. It operates within a supply voltage range of 4.5 V to 5.5 V and is housed in a 16-lead Small Outline Integrated Circuit (SOIC) package.

Counter Dividers Feature Summary

• Synchronous operation ensures all flip-flops are clocked simultaneously, preventing output counting spikes during state transitions.
• Internal carry look-ahead circuitry enables fast counting performance suitable for high-speed digital designs.
• Synchronously programmable architecture allows data loading and counting control via dedicated inputs without asynchronous interference.

Counter Dividers Applications

• High-speed binary counting circuits
• Frequency division networks
• Timing and delay generation systems

Counter Dividers Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm the specific suffix 'BMX' corresponds to the SOIC-16 tape-and-reel packaging variant. Ensure compliance with RoHS directives if required for the target assembly process. Cross-reference datasheet revision dates to confirm pinout and electrical characteristics match the design requirements.

Counter Dividers Selection Notes

Select this component when synchronous preset capabilities and low propagation delay are critical. The ALS series offers improved speed over standard LS counterparts while maintaining lower power consumption than AS series devices. Verify that the 16-lead SOIC package fits the available PCB footprint and thermal constraints. Ensure the operating temperature range meets the environmental specifications of the final application.

Counter Dividers Part Context

This part belongs to the DM74ALS161 series of synchronous 4-bit binary counters. It shares functional compatibility with other industry-standard 74ALS161 variants but is distinguished by its specific manufacturing origin and packaging configuration. The device is designed to interface directly with other TTL-compatible logic families within the same system architecture.

Counter Dividers Replacement Considerations

Direct substitutes include SN74ALS161N from Texas Instruments. Other compatible alternatives may include MC74ALS161 variants from ON Semiconductor. Verify pin-to-pin compatibility and electrical parameter alignment before substitution.