MC74HC595ANG

Shift Registers Overview

The MC74HC595ANG is an 8-bit serial-input, serial or parallel-output shift register with latched 3-state outputs manufactured by onsemi. It integrates an 8-bit shift register and an 8-bit D-type latch. The device operates within a DC supply voltage range of 2.0 V to 6.0 V and supports an operating temperature from -55°C to +125°C. It features asynchronous reset for the shift register and independent clock inputs for the shift register and latch. The component utilizes high-performance silicon-gate CMOS technology.

Shift Registers Feature Summary

• Provides serial-to-parallel data conversion capability through integrated shift and storage registers
• Features three-state parallel outputs that can interface directly with CMOS, NMOS, and TTL logic families
• Includes asynchronous reset functionality specifically targeting the shift register portion while leaving the latch unaffected

Shift Registers Applications

• Direct interfacing with SPI serial data ports on CMOS microprocessors and microcontrollers
• Expansion of I/O capabilities in digital control systems requiring serial input processing
• Data storage applications utilizing the independent latch clock mechanism for stable output presentation

Shift Registers Procurement Notes

Verify the specific package suffix 'N' corresponds to the PDIP-16 configuration when sourcing components. Confirm RoHS compliance status as indicated in the ordering information section. Ensure the procurement channel provides valid datasheet references matching the MC74HC595A/D publication number for accurate technical validation prior to integration.

Shift Registers Selection Notes

Select this component when a robust industrial temperature range extending to -55°C is required alongside standard CMOS logic compatibility. The device is suitable for designs needing independent control over shifting and latching operations via separate clock inputs. Consider the PDIP-16 package constraints regarding board space and thermal dissipation compared to surface-mount alternatives like SOIC-16.

Shift Registers Part Context

This part belongs to the MC74HC595A family of 8-bit shift registers produced by onsemi. It represents a silicon-gate CMOS implementation designed to improve upon previous HC595 generations by offering lower quiescent power and enhanced noise immunity. The product line includes various package options such as SOIC and TSSOP, with the 'ANG' designation specifically identifying the plastic dual-in-line package variant.

Shift Registers Replacement Considerations

MC74HC595ADG (SOIC-16 package)

Shift Registers FAQ

How does the Reset input affect the internal registers?

The Reset input is active-low and asynchronous, affecting only the shift register portion. It clears the shift register contents without impacting the data stored in the 8-bit D-type latch.

Can the outputs be forced into a high-impedance state?

Yes, applying a high level to the Output Enable pin forces the parallel outputs (QA-QH) into a high-impedance state, effectively disconnecting them from the circuit while the serial output remains unaffected.