N74F166D,602

Shift Registers Overview

The N74F166D,602 is an 8-bit bidirectional universal shift register from the 74F logic family. It features high impedance NPN base inputs with a loading of 20μA in both high and low states. The device operates within a supply voltage range of 4.5V to 5.5V and supports a maximum clock frequency of 175MHz at 25°C. Typical propagation delay from clock to output is 5.0ns (high-to-low) and 4.0ns (low-to-high). Total supply current is typically 50mA.

Shift Registers Feature Summary

• Supports synchronous parallel-to-serial data entry via active low parallel enable input
• Features asynchronous master reset that overrides all other inputs to clear the register
• Includes clock enable functionality for hold mode operations
• Allows expansion to 16 bits or more through serial cascading

Shift Registers Applications

• Synchronous parallel to serial data conversion
• Serial data expansion systems
• Bidirectional shift register applications

Shift Registers Procurement Notes

Verify component authenticity against Philips Semiconductors specifications. Confirm package type matches SOIC-16 requirements. Ensure operating conditions remain within recommended limits. Check for end-of-life status as this product may be obsolete. Validate RoHS compliance documentation before integration.

Shift Registers Selection Notes

Select this component for high-speed shifting applications requiring low input loading. Consider the 74F series characteristics for faster performance compared to standard logic families. Verify temperature range suitability for commercial or industrial environments. Evaluate power consumption against system constraints given the typical supply current.

Shift Registers Part Context

This part belongs to the 74F logic family known for high-speed operation. It is manufactured by Nexperia/NXP USA Inc. under the Philips Semiconductors lineage. The D suffix indicates a plastic small outline package variant. It serves as a fundamental building block for digital data handling circuits.

Shift Registers Replacement Considerations

N74F166N,602

Shift Registers FAQ

How does the clock enable input function?

The clock enable (CE) input acts as an active-low gate. When CE is low, the clock signal passes through. When CE is high, the register holds its state regardless of clock transitions.

What is the effect of the master reset input?

The master reset (MR) input is active-low and asynchronous. A low level on MR forces all bit positions to a low state immediately, overriding parallel enable and clock signals.