SN74HC595PWRE4

Shift Registers Overview

The SN74HC595PWRE4 is an 8-bit serial-in, parallel-out shift register manufactured by Texas Instruments. It belongs to the HC logic family and features a 16-pin TSSOP package. The device operates within a supply voltage range of 2 V to 6 V and supports a wide operating temperature range from -40°C to +85°C. Key electrical parameters include a propagation delay of 34 ns at 6 V, with high-level output current of -7.8 mA and low-level output current of 7.8 mA. The component includes a direct clear input for the shift register and separate clocks for the shift and storage registers.

Shift Registers Feature Summary

• Provides 8-bit serial-to-parallel data conversion with registered parallel outputs
• Features independent clock inputs for the shift register and storage register
• Includes a direct override clear input for the shift register stage
• Offers three-state outputs controlled by an output enable signal

Shift Registers Applications

• Serial-to-parallel data expansion in digital systems
• LED display driver circuits requiring multiplexed control
• Industrial control interfaces for expanding I/O capabilities
• Consumer electronics utilizing CMOS logic families

Shift Registers Procurement Notes

Verify the E4 suffix indicates lead-free composition and RoHS compliance per manufacturer standards. Confirm the TSSOP-16 package dimensions match PCB footprint requirements. Ensure the operating temperature range meets system environmental specifications. Cross-reference the datasheet revision to confirm pinout consistency with existing designs.

Shift Registers Selection Notes

Select this component when an 8-bit shift register with registered outputs is required. The HC series offers compatibility with standard CMOS logic levels. Verify that the 2 V to 6 V supply range aligns with the system power rails. Consider the 34 ns propagation delay for timing constraints in the application circuit.

Shift Registers Part Context

This part is a specific variant of the SN74HC595 series, distinguished by the PWRE4 suffix indicating a TSSOP-16 package and lead-free manufacturing. It serves as a core building block for serial data processing in Texas Instruments' logic portfolio. The device is widely used in applications requiring reliable data shifting and latching functions within industrial and consumer electronic systems.

Shift Registers Replacement Considerations

SN74HC595PWR is a compatible alternative within the same series and package type. SN74HC595NSR offers identical functionality but utilizes an SOIC-16 package instead of TSSOP. Verify pinout compatibility and thermal characteristics when substituting packages.