SN74HC193N

Counter Dividers Overview

The SN74HC193N is a 4-bit synchronous, reversible up/down binary counter manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and supports an operating temperature range from -40°C to 85°C. The device features asynchronous clear and parallel load capabilities, allowing for modulo-N counting configurations. It utilizes look-ahead circuitry to facilitate cascading without external logic. The component is housed in a 16-pin PDIP package.

Counter Dividers Feature Summary

• Synchronous operation eliminates output counting spikes associated with ripple-clock counters
• Parallel asynchronous load enables programmable count lengths for modulo-N applications
• Look-ahead circuitry simplifies cascading multiple counters without additional external components

Counter Dividers Applications

• Modulo-N frequency dividers
• Cascaded binary counting systems
• Programmable timing circuits

Counter Dividers Procurement Notes

Verify the specific ordering suffix 'N' corresponds to the 16-pin PDIP tube packaging when sourcing. Confirm that the required operating temperature range aligns with the commercial grade specifications (-40°C to 85°C). Ensure input signals remain within the defined voltage limits relative to VCC to prevent damage. Check for RoHS compliance status if environmental regulations apply to the assembly process.

Counter Dividers Selection Notes

Select this component for designs requiring bidirectional synchronous counting with minimal propagation delay variations. It is suitable for interfacing directly with LSTTL loads due to its drive capability. Consider the PDIP package constraints regarding board space and thermal dissipation compared to surface-mount alternatives like SOIC or TSSOP variants within the same family.

Counter Dividers Part Context

This part belongs to the SN74HC193 series of 4-bit synchronous reversible counters. It shares functional compatibility with other HC logic family members but is distinct from asynchronous counterparts like the 74LS193. The device provides dedicated carry and borrow outputs for efficient multi-stage expansion, differentiating it from simple binary counters lacking cascade control features.

Counter Dividers Replacement Considerations

SN74HC193NSR (SOIC-16)

Counter Dividers FAQ

How does the SN74HC193N handle counting direction?

Counting direction is determined by pulsing either the UP or DOWN clock input while the opposite input remains high.

What is the function of the CLR input?

The CLR input forces all outputs to a low level asynchronously, overriding LOAD and count inputs.