MC74HC163AN

Counter Dividers Overview

The MC74HC163AN is a high-performance silicon-gate CMOS programmable 4-bit binary counter manufactured by onsemi. It features synchronous reset, parallel load capability, and dual count-enable inputs (Enable P and Enable T). The device operates within a DC supply voltage range of 2.0 V to 6.0 V and provides an output drive capability equivalent to 10 LSTTL loads. It includes a Ripple Carry Out pin for cascading applications and complies with JEDEC Standard No. 7A.

Counter Dividers Feature Summary

• Synchronous reset functionality ensures glitch-free operation during counting sequences.
• Parallel data loading allows presetting the counter value via dedicated input pins.
• Dual count enable controls facilitate flexible cascading and modulation configurations.

Counter Dividers Applications

• N-bit synchronous counters through cascaded stages
• Modulo counters utilizing external logic for modulus variation
• Nibble ripple counters

Counter Dividers Procurement Notes

Verify the specific suffix 'AN' corresponds to the PDIP-16 package as documented in the ordering information. Confirm RoHS compliance status if required, noting that Pb-Free variants typically carry the 'G' suffix. Ensure the source component matches the exact part number to avoid functional differences between asynchronous (HC161A) and synchronous (HC163A) reset types.

Counter Dividers Selection Notes

Select this component when a synchronous reset mechanism is required to prevent output glitches during reset operations. It is suitable for designs needing parallel data loading and precise control over counting sequences using dual enable inputs. Verify that the operating voltage range of 2.0 V to 6.0 V aligns with the system power supply requirements.

Counter Dividers Part Context

This device belongs to the MC74HC16xA series of high-speed CMOS logic counters. It shares identical pinouts with the LS161 and LS163 counterparts but utilizes CMOS technology for lower input current and higher noise immunity. The HC163A variant specifically distinguishes itself from the HC161A through its synchronous reset behavior.

Counter Dividers Replacement Considerations

MC74HC161A: Offers identical pinout but features asynchronous reset instead of synchronous reset. MC74HC163AD: Same function and package type (SOIC-16) but different physical housing. MC74HC163ADR2G: Same function but packaged in SOIC-16 tape and reel format.