SN74HC259ANS

Overview

The SN74HC259ANS is an 8-bit addressable latch manufactured by Texas Instruments, belonging to the HC logic family. It features a single circuit with non-inverting outputs and accepts serial input for parallel output distribution. The device operates within a supply voltage range of 2 V to 6 V and utilizes a 16-pin SOIC package. Propagation delay specifications vary based on voltage: 130 ns at 2 V, 26 ns at 4.5 V, and 22 ns at 6 V. Static current consumption is rated at 8 uA. Low-level output current capability is 32 mA, while high-level output current is -5.2 mA.

Feature Summary

• Provides 8-bit addressable latching functionality using D-type transparent latch architecture.
• Supports serial-to-parallel data conversion through dedicated clock and address inputs.
• Features non-inverting outputs suitable for direct interface applications.

Applications

• Data storage in digital systems requiring addressable memory elements
• Serial-to-parallel data conversion interfaces
• Address decoding circuits in microprocessor-based designs

Procurement Notes

Verify the specific suffix 'AN' against official Texas Instruments documentation to confirm package type and temperature rating. Ensure compatibility with required operating conditions before procurement. Cross-reference datasheet revisions for any updates to electrical characteristics or mechanical dimensions.

Selection Notes

Select this component when 8-bit addressable latching is required within the HC logic family constraints. Consider the 2 V to 6 V supply range and propagation delays relative to system timing requirements. Verify package availability matches design constraints.

Part Context

This part belongs to the SN74HC259 series of 8-bit addressable latches. It shares functional similarities with other variants like SN74HC259N and SN74HC259PWR but differs in packaging and potentially environmental ratings. The HC series offers CMOS performance with TTL-compatible inputs.

Replacement Considerations

SN74HC259NE4 and SN74HC259PWRE4 are documented equivalents from Texas Instruments offering similar functionality with different packaging options.