ET74HC164

Shift Registers Overview

The ET74HC164 is an 8-bit serial-in/parallel-out shift register manufactured by ETEK MICROELECTRONICS. It operates within a voltage range of 2.0 to 6.0 V and features a transmission delay of 12 ns at 5 V. The device supports a maximum frequency of 78 MHz and provides a drive current of +/-5.2 mA. It is available in SO14, SSOP14, DIP14, and TSSOP14 packages. The component complies with JEDEC standard no. 7A and functions as a high-speed CMOS logic device compatible with LSTTL pinouts.

Shift Registers Feature Summary

• Features gated serial data inputs where two input terminals perform logical AND operations before shifting.
• Includes an asynchronous master reset (MR) input that forces all outputs low regardless of other inputs.
• Provides electrostatic discharge protection exceeding 2000 V according to HBM standards.

Shift Registers Applications

• Low power or battery-powered applications requiring CMOS logic compatibility
• Systems utilizing standard CMOS outputs with pullup resistors
• Digital circuits requiring serial-to-parallel data conversion

Shift Registers Procurement Notes

Verify the specific package variant required, such as SO14, DIP14, SSOP14, or TSSOP14, as availability varies. Confirm the operating temperature range, which may be -40°C to +85°C or extend to +125°C depending on the specific revision. Ensure the datasheet matches the exact part number ET74HC164 from ETEK MICROELECTRONICS to confirm active status and JEDEC compliance.

Shift Registers Selection Notes

Select this component for designs needing an 8-bit shift register with parallel output capabilities. It is suitable for environments requiring compatibility with LS/ALS164 pinouts. Consider the 2.0–6.0 V supply range and 12 ns propagation delay when designing timing-critical circuits. Verify thermal requirements against the specified temperature ranges before integration.

Shift Registers Part Context

This component belongs to the 74HC series of high-speed CMOS logic devices. It shares functional similarities with other 8-bit shift registers like the 74AHC164 but is distinct in its manufacturer-specific implementation by ETEK MICROELECTRONICS. The device adheres to industry-standard logic families while offering specific packaging options for diverse board layout needs.

Shift Registers Replacement Considerations

The SNx4HC164 and MM74HC164 are functionally identical in pinout and operation. These parts serve as direct substitutes due to shared specifications and compatibility with standard CMOS outputs.