Nexperia USA Inc. 74HC74PW,112

Overview

74HC74PW,112 from Nexperia is a dual positive-edge-triggered D-type flip-flop with independent asynchronous set (nSD) and reset (nRD) inputs, complementary Q and Q̅ outputs per section, 2.0–6.0 V supply range, and TSSOP14 package rated for -40 °C to +125 °C operation. It stores data on LOW-to-HIGH clock transitions with 15 ns typical propagation delay (VCC = 6.0 V), Schmitt-trigger clock input for noise immunity, and clamp diodes enabling overvoltage-tolerant interfacing - used in digital state storage, clock domain synchronization, and edge-sensitive control logic.

For engineers reviewing the 74HC74PW,112 datasheet, 74HC74PW,112 pinout, 74HC74PW,112 application, or 74HC74PW,112 equivalent, this page delivers verified functional identity, validated TSSOP14 pin mapping, confirmed timing parameters (tsu = 13 ns, th = 3 ns, fmax = 82 MHz), real-world use cases in industrial control and serial interface buffering, and two technically documented alternative parts with precise functional and application differences.

Technical Context

This device implements two independent D-type latches synchronized to the rising edge of nCP, each with active-low asynchronous nSD and nRD that override clocked behavior. The Schmitt-trigger clock input ensures reliable triggering even with slow-rising signals, while input clamp diodes permit safe interfacing to voltages exceeding VCC when used with current-limiting resistors.

Each flip-flop exhibits symmetrical output drive (IO = ±25 mA), balanced propagation delays (tpd ≤ 45 ns at VCC = 6.0 V), and latch-up immunity >100 mA per JESD78 Class II Level B. Static input thresholds are CMOS-compatible (VIH = 4.2 V, VIL = 1.8 V at VCC = 6.0 V), and dynamic power dissipation is characterized by CPD = 24 pF.

Key Specifications

Pinout & Package

TSSOP14 plastic thin shrink small outline package (SOT402-1), 14-lead, body width 4.4 mm, 0.65 mm pitch, exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HCT74PW,112, the 74HC74PW,112 offers superior noise margin and wider voltage flexibility but requires stronger high-level drive; versus SN74LVC74APWRE4, it trades lower voltage support for broader interoperability and robust clock edge tolerance.

Availability

74HC74PW,112 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and consumer audio equipment requiring stable component supply across extended temperature ranges.

Supply support for 74HC74PW,112 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 delivering high-performance logic, analog, and discrete components with focus on efficiency, reliability, and sustainability.

The 74HC74 belongs to Nexperia's industry-standard HC logic family, designed for robust, low-power digital interfacing and state retention in industrial, automotive, and computing applications.

FAQ

What is the maximum clock frequency supported by the 74HC74PW,112?

The 74HC74PW,112 achieves a maximum clock frequency of 82 MHz at VCC = 6.0 V and CL = 50 pF, as specified in Table 8 of the datasheet. At lower supply voltages (e.g., VCC = 4.5 V), fmax drops to 69 MHz. This rating assumes proper PCB layout, decoupling, and load capacitance within specification limits.

Can the 74HC74PW,112 operate reliably at 2.0 V supply?

Yes - the 74HC74PW,112 is fully specified from 2.0 V to 6.0 V. At VCC = 2.0 V, propagation delay increases to 220 ns (max), setup time is 90 ns (max), and output drive reduces to ±4.0 mA, but all logic functions remain guaranteed across the full -40 °C to +125 °C range.

Does the TSSOP14 package include an exposed thermal pad?

No - the SOT402-1 (TSSOP14) package used for 74HC74PW,112 has no exposed thermal pad. Thermal performance relies on copper pour on the PCB connected to pins 7 (GND) and 14 (VCC); the package's 500 mW total power dissipation rating assumes ambient temperature ≤ 81 °C before derating begins.

How does the Schmitt-trigger clock input improve system robustness?

The Schmitt-trigger action on the clock input provides hysteresis (~0.5 V typical), allowing reliable triggering even with slow or noisy clock edges (rise/fall times up to 625 ns/V at VCC = 2.0 V). This prevents multiple unintended toggles due to ringing or EMI, eliminating need for external RC filtering in electrically harsh environments.