SN74LS90DRG4

Counter Dividers Overview

The SN74LS90DRG4 is a single-decade counter integrated circuit manufactured by Texas Instruments. It operates within the 74LS logic series and utilizes a 14-SOIC surface-mount package. The device functions as an asynchronous reset decade counter with four bits, designed for positive-edge triggering. It supports a supply voltage range of 4.75 V to 5.25 V and operates at a maximum counting rate of 42 MHz. The component is rated for an ambient operating temperature range of 0°C to 70°C.

Counter Dividers Feature Summary

• Asynchronous reset functionality allows immediate clearing of count states independent of the clock signal.
• Positive-edge triggered operation ensures reliable state transitions synchronized with rising clock edges.
• Decade counting architecture provides a natural base-10 division capability suitable for digital timing applications.

Counter Dividers Applications

• Digital frequency division circuits
• Decimal counting systems
• Timing sequence generation

Counter Dividers Procurement Notes

Verify the specific suffix DRG4 against official Texas Instruments documentation to confirm RoHS compliance and lead-free status. Ensure the SOIC-14 package dimensions match the target PCB footprint requirements. Confirm that the 74LS logic family characteristics align with the system's power and speed constraints before finalizing procurement.

Counter Dividers Selection Notes

Select this component when a standard decade counter is required in a surface-mount configuration. The 74LS series offers a balance of speed and power consumption suitable for general-purpose digital logic. Verify compatibility with existing 5V logic levels and ensure the asynchronous reset feature meets the system's initialization needs.

Counter Dividers Part Context

This part belongs to the Texas Instruments SN74LS90 family of decade counters. The 'D' indicates the SOIC package type, while 'G4' typically denotes Green/RoHS-compliant manufacturing. It serves as a fundamental building block for sequential logic designs requiring decimal counting or frequency division capabilities.

Counter Dividers Replacement Considerations

SN74LS90DR is a direct pin-compatible alternative within the same series. SN74LS90DE4 is another verified variant offering similar electrical characteristics and packaging options. Cross-reference datasheets to ensure identical pinouts and logical functionality before substitution.