SN74HC164DR

Shift Registers Overview

The SN74HC164DR is an 8-bit parallel-out serial shift register manufactured by Texas Instruments in a 14-pin SOIC package. It operates within a supply voltage range of 2 V to 6 V and supports an operating temperature from -40°C to +125°C. The device features AND-gated serial inputs (A and B) and an asynchronous clear (CLR) input. Typical propagation delay is 35 ns at 4.5 V, with maximum clock frequencies reaching 36 MHz at 6 V. Output drive capability is ±4 mA at 5 V.

Shift Registers Feature Summary

• AND-gated serial inputs allow complete control over incoming data entry
• Asynchronous clear function resets all outputs immediately upon activation
• Fully buffered clock and serial inputs ensure signal integrity
• Compatible with LSTTL loads for direct interfacing

Shift Registers Applications

• Programmable Logic Controllers
• Appliances
• Video Display Systems
• Output Expander

Shift Registers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current Package Option Addendum. Suffixes such as DRG4 indicate RoHS compliance and lead finish specifications. Confirm that the selected variant matches the required thermal metrics and moisture sensitivity level for the intended assembly process. Cross-reference the active status to ensure production availability.

Shift Registers Selection Notes

Select this component when an 8-bit serial-to-parallel conversion is required with wide voltage tolerance. The HC logic family offers low power consumption suitable for battery-operated applications. Ensure the design accommodates the minimum setup times relative to the clock edge. Verify that the load capacitance does not exceed the specified limits to maintain timing performance.

Shift Registers Part Context

This device belongs to the SNx4HC164 family of 8-bit shift registers. It is part of the broader 74HC series of high-speed CMOS logic devices. The 'D' suffix specifically denotes the 14-pin Small Outline Integrated Circuit (SOIC) package body size of 8.65 mm by 3.91 mm. It serves as a digital storage element for shifting data sequentially.

Shift Registers Replacement Considerations

• SN74HC164DRG4