Nexperia USA Inc. 74HCT175PW-Q100J

Overview

74HCT175PW-Q100 from Nexperia is an automotive-qualified quad D-type flip-flop with asynchronous master reset, positive-edge clock triggering, and complementary Q/Q̅ outputs per stage. It operates from 4.5 V to 5.5 V, supports -40 °C to +125 °C ambient range, and delivers 19 ns typical propagation delay (CP to Q) at VCC = 4.5 V. It is used in automotive body control modules for synchronized data latching across multiple sensor inputs.

For engineers reviewing the 74HCT175PW-Q100 datasheet, 74HCT175PW-Q100 pinout, 74HCT175PW-Q100 application, or 74HCT175PW-Q100 equivalent, this page provides verified functional role, validated timing parameters, confirmed TSSOP16 pin mapping, and AEC-Q100 Grade 1 qualification context - all critical for automotive signal synchronization and fault-tolerant register design.

Technical Context

This device integrates four independent edge-triggered D flip-flops sharing a common clock (CP) and asynchronous master reset (MR) input. Each stage accepts one data input (Dn), produces true (Qn) and complement (Q̅n) outputs, and latches on the LOW-to-HIGH transition of CP when MR is HIGH.

Its TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 5 V) enable direct interfacing with legacy microcontroller GPIOs and automotive logic families. The MR input forces all Qn outputs LOW regardless of clock state, providing deterministic initialization without clock dependency.

Key Specifications

Pinout & Package

TSSOP16 plastic thin shrink small outline package (SOT403-1), 16-pin, 4.4 mm body width, 0.65 mm lead pitch - optimized for high-density automotive PCB layouts with thermal derating of 8.5 mW/K above 91 °C.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad D-type flip-flop with reset applications.

Compared with 74HCT175PW-Q100, the SO16 variant trades board space for easier handling and thermal margin, while the TI part offers higher HBM immunity but no functional or timing advantage - making the Nexperia TSSOP version optimal for new high-density automotive PCBs.

Availability

74HCT175PW-Q100 is available at Aetrix Electronics and suitable for automotive body control, instrument cluster interfaces, ECU diagnostics, and lighting control units requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HCT175PW-Q100 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a leading semiconductor manufacturer specializing in high-performance, high-reliability logic, analog, and discrete components for automotive, industrial, and consumer markets.

The 74HCT175-Q100 series belongs to Nexperia's automotive-qualified logic portfolio, designed specifically to meet AEC-Q100 Grade 1 requirements for under-hood and chassis-mounted electronic control units.

FAQ

What is the maximum clock frequency supported by the 74HCT175PW-Q100?

The 74HCT175PW-Q100 supports a maximum clock frequency of 25 MHz at VCC = 4.5 V and CL = 50 pF, based on its 19 ns typical propagation delay and 16 ns maximum set-up time. At VCC = 5 V with reduced load (CL = 15 pF), it achieves up to 54 MHz, as confirmed in Table 7 of the official datasheet Rev. 3 (March 2024).

Can the 74HCT175PW-Q100 be used with a 3.3 V microcontroller interface?

No - the 74HCT175PW-Q100 requires a 4.5 V to 5.5 V supply and has TTL-level inputs (VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 5 V). Direct connection to a 3.3 V MCU violates input voltage specifications and risks unreliable logic recognition; level-shifting circuitry is mandatory for interoperability.

How does the master reset (MR) pin behave during power-up sequences?

The MR pin is active-LOW and asynchronous: asserting MR LOW at any time - including during VCC ramp-up - forces all Qn outputs LOW within 38 ns (max) at VCC = 4.5 V. This ensures deterministic initialization before clock stabilization, critical for fail-safe automotive startup behavior.

Is there a difference in timing performance between the 74HC175PW-Q100 and 74HCT175PW-Q100 variants?

Yes - the 74HCT175PW-Q100 exhibits faster propagation delay (19 ns typ vs. 20 ns typ for HC at VCC = 4.5 V) and tighter set-up time (16 ns max vs. 20 ns max) due to TTL-compatible input buffers that reduce input threshold uncertainty, making it preferable for high-speed automotive timing-critical paths.