MC74AC259NG

Latches Overview

The MC74AC259NG is an 8-bit addressable latch from the onsemi 74AC logic family, housed in a 16-lead PDIP package. It operates within a supply voltage range of 2.0 V to 6.0 V and supports ambient temperatures from -40°C to +85°C. The device features four modes: addressable latch, memory, active HIGH demultiplexer/decoder, and common clear. It includes three address inputs (A0-A2), one data input (D), an enable (E), and a master reset (MR). Outputs Q0-Q7 are active HIGH.

Latches Feature Summary

• Provides eight bits of storage with individual output access for random addressable data entry.
• Functions as an active HIGH 1-of-8 decoder or demultiplexer when configured appropriately.
• Incorporates an active LOW common clear input to simultaneously reset all latches.

Latches Applications

• Serial-to-parallel conversion circuits
• General-purpose digital system storage applications
• Active HIGH decoding or demultiplexing tasks

Latches Procurement Notes

Verify that the component matches the specific PDIP-16 package configuration associated with the 'N' suffix. Confirm the presence of the 'G' marking indicates a lead-free construction compliant with RoHS standards. Ensure the datasheet revision aligns with current manufacturing specifications before finalizing integration into the design.

Latches Selection Notes

Select this part for designs requiring high-speed CMOS performance with wide voltage flexibility. The AC series offers superior speed compared to standard HC variants while maintaining low power consumption. Verify that the required operating temperature range falls within the specified industrial limits for reliable long-term operation.

Latches Part Context

This component belongs to the MC74AC259 family of 8-bit addressable latches. It is functionally identical to the ALS259 device but utilizes advanced CMOS technology for improved switching speeds. The family supports both AC and ACT logic levels, providing versatility for various digital interface requirements.

Latches Replacement Considerations

MC74ACT259NG serves as a compatible alternative within the same functional family, offering TTL-compatible input thresholds suitable for 5V logic systems.