74HC165N,652

Shift Registers Overview

The 74HC165N,652 is an 8-bit parallel-in/serial-out shift register manufactured by Nexperia. It features a serial data input (DS), eight parallel data inputs (D0 to D7), and two complementary serial outputs (Q7 and Q7). The device supports asynchronous parallel loading when the PL input is LOW and synchronous serial shifting on LOW-to-HIGH clock transitions when CE is LOW. It operates within a supply voltage range of 2.0 V to 6.0 V and includes overvoltage tolerant inputs up to 15 V.

Shift Registers Feature Summary

• Asynchronous 8-bit parallel load capability
• Synchronous serial data input support
• Input levels compatible with CMOS standards for HC variants
• High noise immunity and low power dissipation

Shift Registers Applications

• Parallel-to-serial data conversion
• HIGH-to-LOW level shifting applications
• Expansion of I/O ports in digital systems

Shift Registers Procurement Notes

Verify the specific ordering code suffix against the manufacturer's current product data sheet to confirm package type and temperature range specifications. Ensure that the procurement channel sources components directly from authorized distributors or the manufacturer to guarantee authenticity and compliance with JEDEC standards. Cross-reference the part number with the latest revision history to avoid obsolete packaging options.

Shift Registers Selection Notes

Select this component for designs requiring efficient reduction of parallel data lines into a single serial stream. Consider the wide supply voltage range and overvoltage tolerance when interfacing with different logic families. Verify that the operating temperature range meets the environmental requirements of the target application before finalizing the design.

Shift Registers Part Context

This device belongs to the 74HC/HCT165 family of high-speed Si-gate CMOS shift registers. It is pin-compatible with low power Schottky TTL (LSTTL) devices. The family complies with JEDEC standard no. 7A and offers multiple package options including SO, TSSOP, and QFN variants to suit various PCB layout constraints.

Shift Registers Replacement Considerations

74HCT165N,652