74ACT164FPEL-E

Shift Registers Overview

The HD74ACT164FPEL-E is an 8-bit serial-in parallel-out shift register from the AC logic family, manufactured by Renesas Electronics. It operates within a supply voltage range of 2.0 V to 6.0 V and supports data rates up to 35 MHz. The device features TTL-compatible inputs and outputs capable of sourcing or sinking 24 mA. It includes an asynchronous master reset that clears all outputs to a low state independent of the clock signal. Data is entered through a two-input AND gate synchronized with the clock's rising edge. The component is housed in a 14-pin SSOP package and is rated for operation between -40 °C and +85 °C.

Shift Registers Feature Summary

• Asynchronous Master Reset function clears all outputs regardless of clock status
• TTL-compatible input levels facilitate integration with standard logic systems
• High drive capability allows direct interfacing with loads requiring significant current
• Serial-to-parallel conversion architecture enables efficient data shifting operations

Shift Registers Applications

• Data storage and buffering in digital circuits
• Parallel output expansion for microcontroller systems
• Status indication and control signal distribution
• Interface adaptation between serial communication protocols and parallel devices

Shift Registers Procurement Notes

Verify the specific suffix 'FPEL' against the manufacturer's official documentation to confirm pinout compatibility and package dimensions. Ensure the operating environment remains within the specified temperature range of -40 °C to +85 °C. Confirm that the power supply voltage stays strictly within the 2.0 V to 6.0 V limits to prevent device damage. Check for any RoHS compliance markings if environmental regulations apply to the final assembly.

Shift Registers Selection Notes

Select this component when an 8-bit serial-to-parallel conversion is required with high-speed performance. The AC series offers superior speed compared to HC series alternatives while maintaining CMOS power efficiency. The 24 mA output drive strength makes it suitable for driving LEDs or other moderate loads directly. Verify that the system requires TTL-compatible input thresholds for proper logic level recognition.

Shift Registers Part Context

This part belongs to the HD74AC/HD74ACT series of high-speed CMOS logic devices produced by Renesas Electronics. The AC series represents an advancement over earlier HC technologies, providing faster propagation delays and higher noise immunity. The ACT variant specifically ensures compatibility with TTL logic families, simplifying design transitions in mixed-voltage environments. This lineage emphasizes reliability and performance for general-purpose digital applications.

Shift Registers Replacement Considerations

Compatible substitutes include the HD74AC164FPEL and HD74ACT164FPEL. Cross-reference pin configurations and electrical characteristics before substitution. Ensure the alternative part number matches the exact package type and thermal specifications.