SN74HCS596PWR

Shift Registers Overview

The SN74HCS596PWR is an 8-bit serial-in, parallel-out shift register with a storage register, manufactured by Texas Instruments in a TSSOP-16 package. It operates within a supply voltage range of 2 V to 6 V and supports an ambient temperature range from -40°C to +125°C. The device features Schmitt-trigger inputs for noise rejection and provides open-drain outputs (QA-QH) requiring external pull-up resistors, alongside a push-pull serial output (QH'). Key electrical parameters include a typical supply current of 100 nA, output drive capability of ±7.8 mA at 6 V, and propagation delays ranging from 5 ns to 21 ns depending on the clock path and voltage.

Shift Registers Feature Summary

• Schmitt-trigger inputs provide high noise immunity and tolerance for slow signal transitions
• Open-drain parallel outputs allow flexible wiring configurations and require external pull-up resistors
• Separate clocks enable independent control of data shifting and storage operations
• Low power consumption design minimizes static current draw during operation

Shift Registers Applications

• Output expansion for microcontroller systems
• LED matrix control applications
• Seven-segment display control
• General-purpose 8-bit data storage

Shift Registers Procurement Notes

Verify the specific ordering suffix matches the required package type, as the SN74HCS596 series includes multiple variants such as SOIC and WQFN packages. Confirm that the open-drain output configuration aligns with your circuit's pull-up requirements. Ensure the operating voltage and temperature ranges meet your system specifications before finalizing procurement decisions.

Shift Registers Selection Notes

Select this component when noise immunity is critical due to its Schmitt-trigger input architecture. Consider the open-drain outputs if wired-AND logic or level shifting is required. Verify that the available I/O pins can support the separate SRCLK and RCLK signals needed for independent shift and storage control. Evaluate thermal constraints if driving significant capacitive loads near the specified limits.

Shift Registers Part Context

This part belongs to the SN74HCS family of high-speed CMOS logic devices. It shares functional similarities with other shift registers like the SN74HCS595 but differs in having open-drain outputs instead of standard push-pull outputs. The HCS designation indicates enhanced performance characteristics suitable for demanding industrial environments compared to standard logic families.

Shift Registers Replacement Considerations

Direct substitutes include the SN74HCS595D or SN74HCS595PW for similar functionality with push-pull outputs. For automotive applications, consider the SN74HCS596QPWRQ1 which meets AEC-Q100 standards. Verify pin compatibility and output drive requirements when swapping between these variants.