Nexperia USA Inc. 74HC4024PW,112

Overview

74HC4024PW,112 from Nexperia is a 7-stage binary ripple counter IC with asynchronous master reset (MR), clock input (CP) triggered on HIGH-to-LOW transition, and seven buffered Q0–Q6 outputs. It operates from 2.0 V to 6.0 V, supports -40 °C to +125 °C ambient range, features Schmitt-trigger clock input for noise immunity, and delivers propagation delays as low as 14 ns at VCC = 6.0 V - used in precision frequency division and time-delay generation circuits.

For engineers reviewing the 74HC4024PW,112 datasheet, 74HC4024PW,112 pinout, 74HC4024PW,112 application, or 74HC4024PW,112 equivalent, this page provides verified functional identity, SO14 package mapping, validated timing parameters, real-world use scenarios, and confirmed alternative parts with documented technical differences.

Technical Context

The 74HC4024PW,112 implements a cascaded chain of seven static toggle flip-flops, advancing state only on the falling edge of CP. Its asynchronous MR input forces all Q outputs LOW independently of CP timing, enabling immediate reset without clock synchronization.

Schmitt-trigger action on CP ensures robust operation with slow-rising/falling clock signals, while internal clamp diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors. Each output drives up to ±4 mA at VCC = 4.5 V with guaranteed VOH ≥ 3.98 V and VOL ≤ 0.26 V.

Key Specifications

Pinout & Package

74HC4024PW,112 is housed in a 14-lead SO14 (SOT108-1) plastic small outline package, 3.9 mm body width, with 1.27 mm lead pitch and gull-wing leads suitable for surface-mount reflow assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 7-stage binary ripple counter applications.

Compared with 74HC4024PW,112, the 74HC4040PW,118 offers greater division depth in the same footprint but requires layout accommodation for additional outputs, while the SN74HC4024N sacrifices Schmitt-trigger noise immunity and SMT compatibility for through-hole serviceability.

Availability

74HC4024PW,112 is available at Aetrix Electronics and suitable for frequency division, time-delay generation, digital logic sequencing, and test signal generation requiring stable component supply across industrial temperature ranges.

Supply support for 74HC4024PW,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, reliable logic, discrete, and MOSFET solutions optimized for efficiency and miniaturization in industrial, automotive, and consumer electronics.

The 74HC4024 belongs to Nexperia's 74HC logic family, engineered for low-power, high-noise-immunity binary counting in resource-constrained embedded timing applications.

FAQ

What is the maximum operating frequency of the 74HC4024PW,112?

The 74HC4024PW,112 achieves a maximum clock frequency of 98 MHz at VCC = 6.0 V with CL = 50 pF, as specified in Table 7 of the Nexperia datasheet Rev. 11. At 4.5 V supply and same load, fmax is 82 MHz. These values assume proper PCB layout, decoupling, and signal integrity - actual system-level performance may be lower due to board parasitics or fanout loading.

Does the 74HC4024PW,112 have Schmitt-trigger inputs on all pins?

Only the CP (clock input, Pin 1) features Schmitt-trigger action, as explicitly stated in Section 1 ("Schmitt-trigger action in the clock input makes the circuit highly tolerant to slower clock rise and fall times"). MR (Pin 2) and all Q outputs are standard CMOS buffers without hysteresis - MR requires clean, monotonic logic-level transitions to avoid metastability during reset assertion.

Can unused n.c. pins (8, 10, 13) be tied to GND or VCC?

No - pins 8, 10, and 13 are internally unconnected (n.c.), and the datasheet specifies no internal bonding or circuitry. They must remain electrically floating; connecting them to GND or VCC introduces risk of leakage paths or ESD stress. Best practice is to leave them unconnected and avoid routing traces or copper pours directly beneath them on PCB layers.

How does the asynchronous MR affect timing behavior relative to CP?

MR overrides all clock activity: when asserted HIGH, it forces Q0–Q6 LOW within tPHL(MR→Q0) = 18 ns (typical) at VCC = 6.0 V, regardless of CP state or edge timing. This reset occurs independently of CP edges, enabling immediate, deterministic clearing - critical for safety-critical or initialization-sensitive systems where clock synchronization cannot be assumed.