74HC161D-Q100J

Counter Dividers Overview

The Nexperia 74HC161D-Q100J is a synchronous presettable 4-bit binary counter with an internal look-ahead carry, qualified to AEC-Q100 Grade 1. It operates on a positive-going clock edge and features asynchronous reset via the MR input. The device supports parallel loading when PE is LOW and counting when CEP and CET are HIGH. Supply voltage ranges from 2.0 V to 6.0 V. Propagation delay (CP to Qn) is typically 22 ns at 4.5 V and 18 ns at 6.0 V. Maximum frequency is 40 MHz at 4.5 V and 48 MHz at 6.0 V. Operating temperature spans -40 °C to +125 °C.

Counter Dividers Feature Summary

• Automotive qualification in accordance with AEC-Q100 Grade 1 standards
• Synchronous operation with simultaneous flip-flop clocking on positive edges
• Asynchronous master reset function independent of clock or enable states
• Internal look-ahead carry terminal count output for simplified cascading

Counter Dividers Applications

• Automotive electronic systems requiring Grade 1 component qualification
• Digital counters utilizing synchronous presettable binary sequences
• Timing circuits employing asynchronous clear functionality
• Multi-stage digital designs using internal look-ahead carry for cascading

Counter Dividers Procurement Notes

Verify the specific package variant against the ordering information table. The 'D' suffix indicates the SO16 plastic small outline package (SOT109-1). Confirm that the required temperature range matches the specified -40 °C to +125 °C operating limits. Ensure design parameters align with the recommended operating conditions provided in the datasheet.

Counter Dividers Selection Notes

Select this component for applications requiring automotive-grade reliability and synchronous 4-bit counting capabilities. The internal look-ahead carry facilitates efficient serial cascading without external logic gates. Verify that the supply voltage and load capacitance requirements fall within the dynamic characteristics specifications to ensure timing performance meets system constraints.

Counter Dividers Part Context

This part belongs to the 74HC161-Q100 family of synchronous presettable binary counters. It is designed for use in environments demanding high noise immunity and low power dissipation. The device integrates CMOS technology with robust latch-up protection exceeding 100 mA per JESD 78 Class II Level B standards.

Counter Dividers Replacement Considerations

The 74HC161PW-Q100 serves as a direct functional substitute, differing only in package type. The PW variant utilizes the TSSOP16 plastic thin shrink small outline package (SOT403-1), whereas the D variant uses the SO16 package (SOT109-1). Both share identical electrical characteristics and pin configurations.