SN74HC393PWRG4

Overview

The SN74HC393PWRG4 is a dual 4-bit binary counter from the Texas Instruments HC logic family, housed in a 14-pin TSSOP package. It operates within a supply voltage range of 2V to 6V and supports an operating temperature range of -40°C to +85°C. The device integrates two independent counters, each featuring parallel outputs for system timing signals and direct clear inputs. It provides output drive capabilities suitable for up to 10 LSTTL loads with low power consumption.

Feature Summary

• Integrates two independent 4-bit binary counters within a single package to reduce component count
• Provides parallel outputs from each counter stage for flexible system timing signal generation
• Features direct clear inputs for immediate reset of individual counter sections

Applications

• System timing signal generation using submultiples of input frequency
• Digital counting applications requiring multiple independent channels
• Frequency division circuits utilizing the divide-by-256 capability

Procurement Notes

Verify the specific ordering suffix 'PWRG4' corresponds to the TSSOP-14 package and lead-free composition. Confirm RoHS compliance status and moisture sensitivity level ratings prior to procurement. Ensure the supplier source matches Texas Instruments authorized distribution channels to guarantee authenticity and traceability.

Selection Notes

Select this component when space-constrained designs require two separate 4-bit counters. The HC series offers wide voltage compatibility and standard CMOS performance. Verify that the TSSOP package footprint aligns with the PCB layout requirements and that the operating temperature range meets the environmental specifications of the target application.

Part Context

This part belongs to the SNx4HC393 family of dual 4-bit binary counters manufactured by Texas Instruments. The 'SN' prefix indicates commercial grade operation, while 'HC' denotes high-speed CMOS technology. The 'G4' suffix signifies lead-free and RoHS compliant manufacturing standards.

Replacement Considerations

Direct substitutes include SN74HC393PWR and SN74HC393PW. Cross-manufacturer equivalents such as Nexperia 74HC393PW or onsemi MC74HC393ADTR2G may be considered if pinout and electrical characteristics are verified against the datasheet.