SN74HC595 8-bit Shift Register

Specifications

Product Overview

Texas Instruments SN74HC595 is an 8-bit serial-in, parallel-out shift register with an 8-bit D-type storage register. Its storage register outputs QA-QH are parallel 3-state outputs, allowing the stored register state to be presented or disabled through the output-enable function.

The recommended operating supply range is 2 V to 6 V, with 5 V nominal operation. The SN74HC595 operating free-air temperature range is -40°C to 85°C. Input thresholds are specified across 2 V, 4.5 V, and 6 V supplies, and both input and output voltage ranges extend from 0 V to VCC under recommended operating conditions.

Dynamic specifications include minimum clock frequency ratings of 5 MHz at 2 V, 25 MHz at 4.5 V, and 29 MHz at 6 V. At VCC = 4.5 V and CL = 50 pF, propagation delay is 17 ns typical from SRCLK to QH' and 17 ns typical from RCLK to QA-QH.

Package options include PDIP-16, SOIC-16, SSOP-16, TSSOP-16, LCCC-20, and CDIP-16. The device is suited to serial-to-parallel output expansion, latched output control, cascaded register designs, and interfaces requiring parallel 3-state outputs.

Key Features

• 8-bit serial-in, parallel-out shift register function
• 8-bit D-type storage register included
• Parallel 3-state QA-QH storage register outputs
• 2 V to 6 V recommended supply range
• -40°C to 85°C operating free-air temperature
• 5 MHz minimum clock frequency at 2 V
• 25 MHz minimum clock frequency at 4.5 V
• 29 MHz minimum clock frequency at 6 V
• 17 ns typical RCLK-to-QA-QH propagation delay at 4.5 V
• ±5 µA maximum 3-state output leakage at 6 V
• 80 µA maximum supply current at 6 V
• PDIP, SOIC, SSOP, TSSOP, LCCC, and CDIP packages

Typical Applications

• Serial-to-parallel output expansion
• Latched parallel output control
• 3-state parallel output interfaces
• Cascaded shift-register chains
• Clocked digital output sequencing
• Microcontroller GPIO expansion
• Register-based signal distribution

Procurement Notes

When requesting a quote for SN74HC595, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.

If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.

For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.