74HC259D

Latches Overview

The Toshiba Semiconductor and Storage 74HC259D is a high-speed CMOS addressable latch fabricated with silicon gate C2MOS technology. It features eight independent latches controlled by three address inputs (A, B, C) and a single data input (D). The device operates within a supply voltage range of 2.0 V to 6.0 V. Key electrical parameters include a typical propagation delay of 15 ns at 5 V, a maximum quiescent supply current of 4.0 µA at 25 °C, and balanced propagation delays. It supports output currents up to ±5.2 mA and functions reliably across an operating temperature range of -40 °C to +125 °C.

Latches Feature Summary

• Provides individual control over eight storage bits using three address lines for random data entry.
• Maintains low power dissipation while achieving high-speed operation comparable to equivalent LSTTL devices.
• Includes protection circuits on all inputs to guard against static discharge and transient excess voltage.

Latches Applications

• Serial-to-parallel conversion in digital communication systems.
• Address decoding and demultiplexing applications.
• Memory expansion and buffer storage in microprocessor-based designs.

Latches Procurement Notes

Verify the specific manufacturer part number against official Toshiba Semiconductor and Storage documentation to ensure authenticity. Confirm that the component meets required environmental standards and operational specifications for your intended application before procurement.

Latches Selection Notes

Select this component when design requirements demand an addressable latch with wide voltage flexibility and balanced timing characteristics. Ensure the application environment stays within the specified temperature limits and that input signals comply with the defined logic levels for reliable operation.

Latches Part Context

This device belongs to the 74HC series of CMOS digital integrated circuits. It utilizes advanced silicon gate C2MOS technology to deliver performance similar to older LSTTL standards while preserving the energy efficiency inherent to CMOS logic families.

Latches Replacement Considerations

Consult official Toshiba documentation for verified substitute part numbers. Do not assume functional equivalence with other manufacturers' components without cross-referencing pinouts and electrical specifications.