74HC77P-E

Latches Overview

The 74HC77P-E is a 4-bit bistable latch manufactured by Renesas Electronics Corporation, belonging to the 74HC series. It functions as a D-type latch where data present at the input transfers to the output when the enable signal is high. The device retains stored information when the enable goes low. It operates within a wide voltage range of 2V to 6V and features low input current of 1µA maximum and low quiescent supply current of 2µA maximum at 25°C. The package type is DILP-14 pin.

Latches Feature Summary

• High-speed operation with typical propagation delay of 12 ns
• Capable of driving 10 LSTTL loads due to high output current
• Low power consumption with minimal static supply current

Latches Applications

• Temporary storage for binary information between processing units
• Data buffering for input/output interfaces
• Indicator unit control logic

Latches Procurement Notes

Verify the specific suffix 'E' against the manufacturer's official documentation to confirm environmental compliance status, as RoHS status may be listed as not applicable in some distributor records. Confirm the package code PRDP0014AB-B matches the required footprint. Ensure the moisture sensitivity level (MSL 3) requirements are met for the assembly process.

Latches Selection Notes

Select this component when a 4-bit latch with high-speed performance and wide voltage compatibility is required. The 74HC series offers CMOS advantages such as low power dissipation. Verify that the 14-pin DIP package fits the board layout constraints. Consider the 12 ns propagation delay suitability for the target clock frequencies.

Latches Part Context

This part is part of the HD74HC77 family, which includes variants like HD74HC77FPEL and HD74HC77RPEL in different packages. The 74HC series is a standard high-speed CMOS logic family known for broad market penetration and long-term availability track record. It serves as a general-purpose logic IC for various digital systems.

Latches Replacement Considerations

Compatible substitutes include HD74HC77P and other 74HC77 variants from Renesas or compatible manufacturers offering identical 4-bit latch functionality and pinout.