74HC259BQ-Q100,115

Latches Overview

The Nexperia 74HC259BQ-Q100,115 is an automotive-qualified 8-bit addressable latch in the HC logic family. It operates within a supply voltage range of 2.0 V to 6.0 V and supports ambient temperatures from -40 °C to +125 °C. The device features four operational modes: addressable latch, memory, demultiplexer/decoder, and reset. It utilizes CMOS input levels and includes clamp diodes on inputs for overvoltage interfacing. The component is housed in a DHVQFN-16 package (SOT763) with side-wettable flanks.

Latches Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards
• Supports serial-to-parallel conversion and random addressable data entry
• Includes common reset input and ESD protection exceeding specified JEDEC limits
• DHVQFN package design enables automatic optical inspection of solder joints

Latches Applications

• Automotive engine control units
• Body control modules
• Transmission control units
• Electronic instrument clusters

Latches Procurement Notes

Verify that the specific ordering suffix matches the required temperature grade and package variant. Confirm compliance with the latest product data sheet revision prior to design finalization. Ensure application circuits respect absolute maximum ratings to prevent permanent damage. Validate that the DHVQFN16 footprint aligns with the SOT763-1 outline drawing specifications.

Latches Selection Notes

Select this component when an 8-bit storage solution with individual bit addressing is required in automotive environments. The HC series offers CMOS input switching levels suitable for standard logic interfaces. Consider the DHVQFN package if PCB space constraints and thermal performance are critical factors for the design.

Latches Part Context

This part belongs to the Nexperia 74HC259-Q100 series, which also includes variants in SO16 and TSSOP16 packages. The BQ suffix specifically denotes the DHVQFN16 leadless package configuration. It is distinct from the 74HCT259-Q100, which utilizes TTL input switching levels instead of CMOS levels.

Latches Replacement Considerations

Direct substitutes include other 74HC259-Q100 variants such as the 74HC259D-Q100 or 74HC259PW-Q100, provided the package type change is accommodated by the PCB layout.