MC74HC164ADTR2G

Shift Registers Overview

The MC74HC164ADTR2G is an 8-bit serial-input to parallel-output shift register manufactured by onsemi. It operates within a DC supply voltage range of 2.0 V to 6.0 V and supports an operating temperature from -55°C to +125°C. The device features push-pull outputs capable of driving 10 LSTTL loads and interfaces directly with CMOS, NMOS, and TTL logic. Data enters on the rising edge of the clock signal through two serial inputs (A1, A2), which can function as data enable when one input is tied high. An active-low asynchronous reset overrides clock and data inputs to clear all stages.

Shift Registers Feature Summary

• Provides serial-to-parallel conversion using two serial data inputs that allow one pin to serve as a data enable control.
• Features an active-low asynchronous reset input that immediately clears all internal flip-flops regardless of clock or data states.
• Delivers true, non-inverted parallel outputs via a push-pull configuration compatible with standard CMOS, NMOS, and TTL loads.

Shift Registers Applications

• Data acquisition systems requiring serial-to-parallel conversion
• LED display drivers for expanding output ports
• Status indicator circuits in embedded controllers

Shift Registers Procurement Notes

Verify the specific suffix 'DT' confirms the TSSOP-14 package variant rather than the SOIC-14 option. Confirm RoHS compliance status matches current manufacturing standards. Ensure the ordering quantity aligns with the standard tape and reel specification of 2500 units per package. Cross-reference the manufacturer part number against authorized distributor lists to guarantee authenticity.

Shift Registers Selection Notes

Select this component when an 8-bit shift register with parallel outputs is required in a space-constrained design due to the compact TSSOP-14 footprint. Choose this device over HC/UH series alternatives if extended industrial temperature performance down to -55°C is necessary. Verify that the 2.0 V to 6.0 V supply range matches the system power rails before integration.

Shift Registers Part Context

This component belongs to the MC74HC164A family of high-performance silicon-gate CMOS logic devices. It maintains pinout compatibility with legacy LS164 designs while offering improved noise immunity and lower input current characteristics typical of modern CMOS technology. The device is designed for general-purpose digital logic applications requiring reliable data shifting capabilities.

Shift Registers Replacement Considerations

MC74HC164BDR2G serves as a direct functional substitute utilizing the SOIC-14 package instead of TSSOP-14. MM74HC164MTCX offers equivalent functionality but may differ in thermal resistance and package dimensions. Verify pin compatibility and voltage specifications when substituting with other 74HC164 variants from different manufacturers.