74HCT193D,653

Counter Dividers Overview

The Nexperia 74HCT193D,653 is a synchronous 4-bit binary up/down counter housed in a 16-lead SO plastic small outline package (SOT109-1). It operates within a supply voltage range of 4.5 V to 5.5 V and supports an ambient temperature range from -40 °C to +125 °C. The device features separate count-up (CPU) and count-down (CPD) clock inputs that trigger state changes on the LOW-to-HIGH transition. It includes asynchronous parallel load and master reset capabilities, along with terminal count outputs for cascading.

Counter Dividers Feature Summary

• Supports synchronous reversible 4-bit binary counting using separate up and down clock inputs
• Features asynchronous parallel load and asynchronous master reset functions
• Includes expandable terminal count outputs for multistage counter applications
• Complies with JEDEC standards and offers high noise immunity

Counter Dividers Applications

• Multistage counter systems utilizing cascaded terminal count outputs
• Digital circuits requiring presettable synchronous binary counting
• Applications needing asynchronous data loading and immediate system reset

Counter Dividers Procurement Notes

Verify the specific ordering suffix matches the required package type, as the 74HCT193 series is available in both SO16 and TSSOP16 configurations. Confirm the temperature grade corresponds to the operational environment requirements. Ensure input signal levels are compatible with TTL logic thresholds defined for the HCT series. Cross-reference the datasheet revision to confirm current manufacturing status and any recent specification updates.

Counter Dividers Selection Notes

Select this component when a synchronous 4-bit bidirectional counter is required with TTL-compatible input levels. The HCT variant ensures compatibility with standard TTL logic families while maintaining CMOS low power dissipation characteristics. Consider the package dimensions and lead pitch if board space is constrained. Verify that the operating voltage remains strictly within the 4.5 V to 5.5 V range to ensure correct logic threshold performance.

Counter Dividers Part Context

This part belongs to the 74HCT logic family, which bridges CMOS technology with TTL input compatibility. The 74HCT193 specifically provides a presettable synchronous up/down counting function. It is manufactured by Nexperia USA Inc. and is designed for general-purpose digital logic applications requiring reliable binary counting operations with flexible control inputs.

Counter Dividers Replacement Considerations

Public confirmed substitute part numbers include SN74LS193DR from Texas Instruments.