74AHC595BQ,115

Shift Registers Overview

The Nexperia 74AHC595BQ,115 is an 8-bit serial-in/serial-out or parallel-out shift register with output latches. It features a storage register and three-state outputs. Both the shift and storage registers have separate clocks. The device includes a serial input (DS) and a serial output (Q7S) for cascading, along with an asynchronous reset (MR) input. Data shifts on LOW-to-HIGH transitions of SHCP and transfers to the storage register on STCP transitions. Outputs appear when OE is LOW; HIGH OE causes high-impedance OFF-state. Supply voltage ranges from 2.0 V to 5.5 V. Operating temperature spans -40 °C to +125 °C. Package is DHVQFN16.

Shift Registers Feature Summary

• Features balanced propagation delays and Schmitt-trigger action on all inputs.
• Provides overvoltage tolerant inputs up to 5.5 V for mixed voltage environments.
• Includes ESD protection exceeding 2000 V (HBM) and 1000 V (CDM).
• CMOS low power dissipation with latch-up performance exceeding 100 mA.

Shift Registers Applications

• Serial-to-parallel data conversion
• Remote control holding register

Shift Registers Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature range. Confirm that the DHVQFN16 footprint aligns with PCB layout requirements. Check for any recent Product Change Notifications regarding assembly or material changes. Ensure design accounts for the specified thermal derating characteristics at elevated temperatures.

Shift Registers Selection Notes

Select this component for designs requiring 8-bit serial-to-parallel conversion with independent clocking for shift and storage operations. The AHC logic family offers wide supply voltage compatibility and CMOS low power consumption. Consider the DHVQFN16 package for space-constrained applications requiring leadless mounting.

Shift Registers Part Context

This part belongs to the 74AHC series of high-speed CMOS logic devices manufactured by Nexperia. It is functionally compatible with other 74HC595 variants but operates with AHC input levels. The BQ suffix indicates the DHVQFN16 package variant. It serves as a core building block for digital signal processing and display driver circuits.

Shift Registers Replacement Considerations

Direct functional substitutes include the 74HC595BQ,115 and 74AHCT595BQ,115 from Nexperia. Verify input voltage compatibility, as AHCT requires TTL levels while AHC uses CMOS levels. Other manufacturers' equivalents must be checked against the specific DHVQFN16 pinout and electrical specifications.