SN74HCT595PWR

Shift Registers Overview

The SN74HCT595PWR is an 8-bit serial-in, parallel-out shift register with a storage register and 3-state outputs. It operates at 4.5 V to 5.5 V and supports an extended temperature range of –40°C to +125°C. The device features LSTTL-compatible inputs and CMOS input logic compatibility. It includes a direct clear input for the shift register and separate clocks for shifting and storage. Propagation delay ranges from 40 ns to 53 ns depending on the clock source and voltage.

Shift Registers Feature Summary

• LSTTL input logic compatible
• CMOS input logic compatible
• Direct overriding clear for shift register
• Balanced CMOS 3-state outputs

Shift Registers Applications

• Output expansion
• LED matrix control
• 7-segment display control
• 8-bit data storage

Shift Registers Procurement Notes

Verify the specific ordering suffix matches the required package type and tape/reel configuration. Confirm RoHS compliance status and ensure the component meets the intended operating temperature range requirements. Cross-reference the manufacturer part number with official datasheets to validate pinout and electrical specifications before integration.

Shift Registers Selection Notes

Select this component when TTL-compatible inputs are required alongside CMOS technology. Ensure the supply voltage remains within the 4.5 V to 5.5 V range. Consider the propagation delay limits for high-speed applications. Verify that the load capacitance does not exceed recommended values to maintain signal integrity.

Shift Registers Part Context

This device belongs to the SN74HCT595 family of 8-bit shift registers. It is manufactured by Texas Instruments in a 16-pin TSSOP package. The HCT series provides compatibility with standard TTL logic levels while utilizing CMOS technology for low power consumption and high noise immunity.

Shift Registers Replacement Considerations

SN74AHCT595PWR

Shift Registers FAQ

How are unused inputs handled?

Unused inputs must be terminated to VCC or GND. They should never be left floating to prevent undefined operational states and excessive power consumption.

What is the function of the OE pin?

The Output Enable (OE) pin controls the state of the storage register outputs. When high, the outputs enter a high-impedance state; when low, they are enabled.