Nexperia USA Inc. 74HCT175D,652

Overview

74HCT175D,652 from Nexperia is a quad positive-edge-triggered D-type flip-flop with asynchronous master reset (MR), 16-pin SO16 package, TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), and guaranteed operation from −40 °C to +125 °C. It stores four independent data bits on the LOW-to-HIGH clock transition and drives complementary Q/Q̅ outputs-used in synchronous logic control, register staging, and bus interface synchronization.

For engineers reviewing the 74HCT175D,652 datasheet, 74HCT175D,652 pinout, 74HCT175D,652 application, or 74HCT175D,652 equivalent, key selection criteria include TTL-level input compatibility, 16 ns typical propagation delay (CP to Q) at 4.5 V, 25 MHz maximum clock frequency, asynchronous reset timing (tPHL = 38 ns), and SO16 thermal derating (12.4 mW/K above 110 °C).

Technical Context

This device implements four independent edge-triggered D latches sharing one common clock (CP) and one active-low asynchronous master reset (MR). Each flip-flop samples its Dn input only on the LOW-to-HIGH transition of CP, provided setup (tsu = 16 ns) and hold (th = 5 ns) times are met. MR overrides clocking and forces all Qn outputs LOW regardless of CP state.

Inputs feature integrated clamp diodes enabling safe interfacing to voltages exceeding VCC when used with current-limiting resistors. Output drive capability is ±4.0 mA at VOH/VOL specifications, supporting direct connection to standard TTL loads without buffering.

Key Specifications

Pinout & Package

74HCT175D,652 uses the SOT109-1 plastic small outline package (SO16), 16-pin, 3.9 mm body width, with standard 1.27 mm lead pitch. Pin 1 is marked by a notch or beveled corner; pin numbering follows counter-clockwise convention from top-left.

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 SN74HCT175N and 74HCT175PW,118, the 74HCT175D,652 offers optimal thermal management in SO16 form for industrial ambient conditions, while maintaining pin-for-pin compatibility with both alternatives-enabling drop-in substitution where package height and thermal resistance are design-critical.

Availability

74HCT175D,652 is available at Aetrix Electronics and suitable for industrial control systems, legacy interface adapters, and motor drive state registers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HCT175D,652 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 global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions optimized for reliability and manufacturability.

The 74HCT175 belongs to Nexperia's industry-standard 74-series logic family, designed specifically for robust interoperability in mixed-technology systems where TTL-level signal integrity and wide-temperature operation are mandatory.

FAQ

Can 74HCT175D,652 operate at 3.3 V?

No. The 74HCT175D,652 is specified only for 4.5 V to 5.5 V supply operation. Its TTL-compatible inputs require ≥2.0 V VIH minimum, which cannot be reliably met from a 3.3 V source. For 3.3 V systems, use the 74HC175 variant or a level-shifter circuit.

What happens if MR is held LOW while CP toggles?

When MR is LOW, all Qn outputs remain forced LOW regardless of CP activity or Dn input states. The flip-flops are effectively disabled and do not sample or store data until MR returns HIGH, after which normal edge-triggered operation resumes on the next CP rising edge.

Is the SO16 package RoHS compliant and lead-free?

Yes. The 74HCT175D,652 in SOT109-1 package is manufactured per RoHS Directive 2011/65/EU and is lead-free, with matte tin (Sn) termination finish. Full compliance documentation, including substance declarations and test reports, is available from Nexperia's product portal.

How does input clamping affect interfacing with 12 V sensors?

The integrated input clamp diodes allow safe connection to 12 V signals when used with a series current-limiting resistor. For example, a 10 kΩ resistor limits IIK to <1.2 mA when VI = 12 V and VCC = 5 V, staying well below the ±20 mA absolute maximum rating and preventing damage.