NXP Semiconductors 74HC4040DB,118

Overview

74HC4040DB,118 from Nexperia is a 12-stage asynchronous binary ripple counter IC with CMOS logic, operating from 2.0 V to 6.0 V supply, featuring a HIGH-to-LOW clock edge-triggered input (CP), active-HIGH asynchronous master reset (MR), and twelve independent Q0–Q11 outputs. It delivers up to 98 MHz maximum clock frequency at VCC = 4.5 V and CL = 15 pF, with propagation delay as low as 8 ns per stage (VCC = 6.0 V), used in precision frequency division and timing control circuits.

For engineers reviewing the 74HC4040DB,118 datasheet, 74HC4040DB,118 pinout, 74HC4040DB,118 application, or 74HC4040DB,118 equivalent, this device is selected for high-noise-immunity, low-power digital timing functions requiring stable 12-bit binary counting, precise clock division ratios (e.g., ÷4096), and industrial-grade temperature operation (−40 °C to +125 °C) in non-automotive embedded systems.

Technical Context

This device implements a cascaded chain of 12 static toggle flip-flops, where each stage divides its input by two, resulting in a total division ratio of 2¹² = 4096. The counter advances only on the HIGH-to-LOW transition of CP, and MR forces all outputs LOW asynchronously-regardless of CP state-enabling deterministic reset behavior in timing-critical sequences.

Input clamp diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors. Its CMOS-level inputs (74HC variant) ensure compatibility with 3.3 V and 5 V logic families, while static characteristics guarantee VIH ≥ 3.15 V and VOL ≤ 0.26 V at VCC = 4.5 V and IO = 4.0 mA, supporting robust signal integrity in mixed-voltage designs.

Key Specifications

Pinout & Package

74HC4040DB,118 uses the SOT338-1 (SSOP16) package: plastic shrink small outline package, 16 leads, body width 5.3 mm, pitch 0.65 mm. Pin 1 index located at top-left corner with beveled edge marking.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 12-bit binary counter applications.

Compared with 74HC4040DB,118, the 74HC4020PW,118 extends counting depth at no cost to timing performance, while CD74HC4040M96 trades compactness for mechanical robustness and broader distributor availability-making DB,118 optimal for space-constrained industrial timing modules.

Availability

74HC4040DB,118 is available at Aetrix Electronics and suitable for frequency division, time delay generation, control counter sequencing, and digital logic state machine applications requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for 74HC4040DB,118 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, analog, and MOSFET solutions optimized for efficiency, miniaturization, and robustness in industrial and consumer electronics.

The 74HC4040 belongs to Nexperia's high-speed CMOS logic family, designed specifically for low-power, noise-immune digital timing and counting functions in space- and energy-constrained embedded systems.

FAQ

What is the maximum clock frequency supported by 74HC4040DB,118?

The 74HC4040DB,118 supports a maximum clock frequency of 98 MHz at VCC = 4.5 V and CL = 15 pF, as specified in Table 7 of the datasheet. At VCC = 6.0 V, fmax drops to 98 MHz (typical) but derates to 24 MHz under worst-case conditions (−40 °C to +125 °C, CL = 50 pF). This rating assumes clean, monotonic clock edges with <6 ns rise/fall times.

Can 74HC4040DB,118 be used with a 3.3 V supply?

Yes-74HC4040DB,118 operates reliably from 2.0 V to 6.0 V, including 3.3 V nominal supply. At VCC = 3.3 V, VIH is guaranteed ≥2.1 V and VOL ≤0.26 V at IO = 4.0 mA, ensuring interoperability with standard 3.3 V CMOS and LVTTL outputs without level shifting.

Is the master reset (MR) input synchronous or asynchronous?

The MR input is asynchronous and active HIGH: asserting MR immediately forces all Q0–Q11 outputs LOW, regardless of CP state or timing. No clock edge is required, and reset occurs within tPHL(MR→Qn) ≤45 ns (VCC = 4.5 V), enabling deterministic initialization in safety-critical timing paths.

Does 74HC4040DB,118 have built-in ESD protection?

Yes-74HC4040DB,118 features HBM ESD protection exceeding 2000 V and CDM protection exceeding 1000 V per JEDEC JS-001/JS-002 standards. These ratings are validated per the manufacturer's qualification testing and apply to all pins, including CP and MR, reducing need for external TVS devices in most industrial layouts.