74VHC175SJX

Overview

The Fairchild Semiconductor 74VHC175SJX is a quad D-type flip-flop belonging to the 74VHC series. It features four independent positive-edge-triggered D flip-flops with complementary outputs and an active-low master reset input. The device operates within a supply voltage range of 2V to 5.5V, ensuring compatibility with both 3.3V and 5V logic systems. It utilizes a 16-TSSOP surface-mount package. Key electrical specifications include a maximum propagation delay of 9.3ns at 5V with a 50pF load, a clock frequency of 115MHz, and static current consumption of 4µA.

Feature Summary

• Provides four independent positive-edge-triggered D flip-flops with complementary outputs for versatile data storage applications.
• Features an active-low master reset input that asynchronously clears all flip-flops to a low state regardless of clock or data inputs.
• Supports a wide operating voltage range from 2V to 5.5V, enabling seamless integration into mixed-voltage digital systems.

Applications

• Parallel-to-serial and serial-to-parallel data conversion circuits
• Shift register implementations in communication interfaces
• General-purpose memory storage elements in digital control systems

Procurement Notes

Verify the specific manufacturer origin, as Rochester Electronics also produces this part number. Confirm the suffix 'SJX' corresponds to the standard 16-TSSOP tape-and-reel packaging configuration. Ensure compliance with RoHS directives if required by your manufacturing standards. Cross-reference the datasheet revision date to confirm pinout and electrical characteristics match your design requirements before finalizing procurement.

Selection Notes

Select this component when a low-voltage, high-speed quad D flip-flop is required. The 74VHC series offers performance comparable to older 74HC devices but with lower power consumption and wider voltage tolerance. Consider the 16-TSSOP package for space-constrained PCB layouts. Ensure the system voltage falls within the 2V to 5.5V range to guarantee proper operation and avoid exceeding absolute maximum ratings.

Part Context

This component is part of the broader 74VHC family of high-speed CMOS logic devices. It shares functional similarities with other quad D flip-flops like the 74VHC374 but differs in output type and trigger mechanism. The 74VHC series is designed to replace legacy 74HC parts while offering improved speed and power efficiency. It is commonly used alongside other VHC logic gates to build complex sequential circuits.

Replacement Considerations

• 74VHC175MTC
• MM74VHC175MTCX

FAQ

What is the function of the MR (Master Reset) pin?

The MR pin is an active-low asynchronous reset input. When driven low, it forces all Q outputs to a low state immediately, ignoring the clock and D inputs.

How does the 74VHC175 differ from the 74VHC374?

The 74VHC175 provides complementary outputs (Q and Q-bar) for each flip-flop, whereas the 74VHC374 typically provides only non-inverted outputs. Both are quad D flip-flops with similar timing characteristics.