Nexperia USA Inc. 74HC75D,652

Overview

74HC75D,652 from Nexperia is a quad bistable transparent latch IC with complementary Q/nQ outputs, dual active-HIGH enable inputs (LE12 and LE34), 2.0 V to 6.0 V supply range, and operation up to +125 °C in SO16 package. It functions as a data-holding interface in bus buffering, address latching, and I/O expansion circuits where simultaneous control of two latch pairs is required.

For engineers reviewing the 74HC75D,652 datasheet, 74HC75D,652 pinout, 74HC75D,652 application, or 74HC75D,652 equivalent, key selection criteria include propagation delay (≤22 ns at VCC = 4.5 V), set-up/hold timing (tsu = 12 ns, th = 3 ns), CMOS input compatibility, latch enable grouping (LE12 for latches 1–2, LE34 for 3–4), and SO16 thermal derating (12.4 mW/K above 110 °C).

Technical Context

The 74HC75 implements four independent transparent latches grouped into two pairs, each controlled by a dedicated active-HIGH enable signal-LE12 governs latches 1 and 2, LE34 governs latches 3 and 4. Each latch features true and complementary outputs (nQ and nQ) driven from corresponding data inputs (nD), enabling direct interfacing with differential logic or status monitoring.

Its CMOS architecture delivers low static current (≤160 μA at VCC = 6.0 V, -40 °C to +125 °C), high noise immunity, and input clamp diodes allowing safe interfacing to voltages exceeding VCC when used with current-limiting resistors. The device complies with JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V) standards.

Key Specifications

Pinout & Package

74HC75D,652 is housed in a plastic small outline package (SO16, SOT109-1) with 16 leads, 3.9 mm body width, and center-placed VCC (pin 5) and GND (pin 12) for improved power integrity.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad transparent latch applications.

Compared with 74HC75D,652, the 74HC75PW,118 offers superior thermal dissipation in compact layouts but requires TSSOP reflow process validation, while SN74HC75N lacks modern reliability qualification and thermal range - making the SO16 variant optimal for industrial volume manufacturing with proven assembly yield.

Availability

74HC75D,652 is available at Aetrix Electronics and suitable for industrial automation controllers, embedded sensor interface modules, and programmable logic peripheral expansion requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for 74HC75D,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 high-volume, high-reliability logic, discrete, and MOSFET solutions with leadership in automotive and industrial applications.

The 74HC75 belongs to Nexperia's 74HC logic family, engineered for low-power, high-noise-immunity digital interfacing in resource-constrained embedded systems operating across harsh environmental conditions.

FAQ

What is the maximum clock frequency supported by the 74HC75D,652?

The 74HC75D,652 does not operate on a clock signal-it is a transparent latch controlled by level-sensitive enable inputs (LE12/LE34). Its effective data throughput is governed by propagation delay (min 10 ns at VCC = 6.0 V) and setup/hold timing, supporting reliable operation in systems with data valid windows ≥15 ns. It is not rated for continuous clocked operation like flip-flops.

Can 74HC75D,652 interface directly with 3.3 V microcontrollers while powered at 5 V?

Yes-its CMOS inputs accept VIH ≥ 3.15 V and VIL ≤ 1.35 V at VCC = 4.5 V, fully compatible with 3.3 V logic high/low levels. Input clamp diodes also permit safe 3.3 V signal injection into a 5 V-powered device when used with appropriate current-limiting resistors (e.g., 1 kΩ), preventing latch damage from voltage overshoot.

Why are VCC and GND placed on center pins (5 and 12) in the SO16 package?

Center-placed VCC and GND minimize leadframe inductance and improve power distribution symmetry across all four latches. This layout reduces ground bounce between latch sections during simultaneous output switching, enhances noise immunity in mixed-signal environments, and simplifies PCB decoupling-typically requiring one 100 nF capacitor bridging pins 5 and 12 near the package.

Does the 74HC75D,652 support hot insertion or live swapping in backplane systems?

No-the 74HC75D,652 lacks hot-swap protection circuitry such as power-on reset, Ioff, or VCC isolation. Applying VCC after signal inputs may cause undefined states or excessive current flow due to internal parasitic paths. For backplane applications, use dedicated hot-swap controllers or buffer ICs with Ioff specification (e.g., 74LVC2G125) upstream of the latch.