74LV165N,112

Shift Registers Overview

The NXP USA Inc. 74LV165N,112 is an 8-bit parallel-in/serial-out shift register manufactured by Nexperia. It features a wide supply voltage range from 1.0 V to 5.5 V and CMOS low power dissipation. The device includes eight parallel data inputs (D0 to D7), a serial data input (DS), and complementary serial outputs (Q7 and Q7). Asynchronous parallel loading occurs when the PL input is LOW. Data shifts on LOW-to-HIGH transitions of the clock input (CP) when the clock enable (CE) is LOW. Inputs include clamp diodes for interfacing with voltages exceeding VCC.

Shift Registers Feature Summary

• Provides asynchronous parallel loading capability via the active LOW PL input.
• Features complementary serial outputs (Q7 and Q7) for flexible signal routing.
• Includes input clamp diodes to allow current limiting resistors for high-voltage interfacing.

Shift Registers Applications

• Synchronous parallel-to-serial data conversion
• Expansion of synchronous serial inputs in digital systems
• Interface circuits requiring TTL level compatibility

Shift Registers Procurement Notes

Verify that the ordering suffix matches the required package type, as the datasheet lists SO16 and TSSOP16 variants. Confirm the temperature range specification aligns with application requirements, noting the -40 °C to +125 °C rating. Ensure compliance with JEDEC standards relevant to the specific operating voltage range selected for the design.

Shift Registers Selection Notes

Select this component for applications requiring low voltage operation down to 1.0 V or standard 5.5 V logic levels. Consider the latch-up performance exceeding 100 mA per JESD 78 Class II Level B for robustness. Evaluate ESD protection ratings, which exceed 2000 V HBM and 1000 V CDM, against system environmental constraints.

Shift Registers Part Context

This part belongs to the 74LV series of logic devices, designed for low-voltage CMOS applications. It serves as a fundamental building block for data serialization tasks in embedded systems. The device complies with various JEDEC standards covering voltage ranges from 1.65 V to 5.5 V, ensuring broad interoperability within mixed-voltage digital environments.

Shift Registers Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.

Shift Registers FAQ

How does the device handle parallel data loading?

When the parallel load input (PL) is LOW, data from the parallel inputs D0 to D7 is loaded into the shift register asynchronously.

What is the function of the clock enable input?

The clock enable (CE) input controls shifting; when CE is LOW, data shifts on LOW-to-HIGH transitions of the clock input, while a HIGH state disables the clock input.