SN74HCS264PWR

Shift Registers Overview

The SN74HCS264 is an 8-bit parallel-out serial shift register featuring Schmitt-trigger inputs and inverted outputs. It operates within a supply voltage range of 2 V to 6 V and supports an ambient temperature range from -40°C to +125°C. The device includes two serial inputs (A and B) connected through an AND gate, an asynchronous clear input, and rising-edge triggered clocking. It provides balanced CMOS push-pull outputs with ±7.8 mA drive capability at 6 V.

Shift Registers Feature Summary

• Schmitt-trigger inputs provide noise margin and eliminate transition rate requirements for slow or noisy signals.
• Balanced CMOS push-pull outputs ensure similar sourcing and sinking current capabilities.
• AND-gated serial inputs require high signals on both A and B to set the data line high.

Shift Registers Applications

• Output expansion
• LED matrix control
• 7-segment display control
• 8-bit data storage

Shift Registers Procurement Notes

Verify the specific package variant required, as the SN74HCS264 is available in TSSOP-16 and SOIC-16 configurations. Confirm that the application environment remains within the specified operating temperature range of -40°C to +125°C. Ensure power supply decoupling capacitors are placed physically close to the VCC and GND pins to maintain signal integrity and prevent power disturbances during operation.

Shift Registers Selection Notes

Select this component when inverted parallel outputs are required alongside serial data shifting. The Schmitt-trigger architecture makes it suitable for environments with noisy signals or slow input transitions. Verify that the load capacitance does not exceed 50 pF to meet timing specifications. Consider the AND-gated input structure if logic gating is needed directly at the serial interface stage.

Shift Registers Part Context

This device belongs to the Texas Instruments HCS (High-Speed CMOS) logic family, designed for low power consumption and wide voltage operation. It serves as a specialized shift register alternative to standard D-type flip-flop chains, offering integrated input gating and inverted outputs in a single package. The HCS series bridges performance gaps between legacy HC/HCT families and modern high-speed logic standards.

Shift Registers Replacement Considerations

SN74HCS165: Parallel-load shift register with different loading mechanism. SN74HC595: Standard shift register without Schmitt triggers or inverted outputs. SN74HCS164: Serial-in shift register lacking the dual AND-gated input structure.