Nexperia USA Inc. 74HC4040PW,118

Overview

74HC4040PW,118 from Nexperia is a 12-stage asynchronous binary ripple counter IC with CMOS logic level inputs, operating from 2.0 V to 6.0 V supply, featuring HIGH-to-LOW clock edge triggering, active-HIGH asynchronous master reset (MR), and twelve buffered Q0–Q11 outputs. It delivers up to 98 MHz maximum clock frequency at VCC = 4.5 V and supports industrial temperature range (−40 °C to +125 °C) in TSSOP16 package.

For engineers reviewing the 74HC4040PW,118 datasheet, 74HC4040PW,118 pinout, 74HC4040PW,118 application, or 74HC4040PW,118 equivalent, key selection considerations include its ripple counter architecture (non-synchronous propagation delay chain), TTL-compatible variant (74HCT4040PW), input clamping diode support for overvoltage-tolerant interfacing, low ICC supply current (≤160 μA at 125 °C), and ESD robustness (HBM >2000 V).

Technical Context

This device implements a cascaded chain of 12 static toggle flip-flops, where each stage advances on the HIGH-to-LOW transition of the CP input. Output transitions propagate sequentially-Q0 toggles first, then Q1 after Q0's falling edge, and so on-resulting in cumulative propagation delays across stages (e.g., Q11 exhibits ~26 ns tpd per stage at VCC = 6.0 V).

The MR input forces all outputs LOW asynchronously and independently of CP state, enabling immediate counter reset without waiting for clock edges. Input clamp diodes allow safe interfacing to signals exceeding VCC when used with current-limiting resistors, supporting mixed-voltage system integration.

Key Specifications

Pinout & Package

TSSOP16 plastic thin shrink small outline package (SOT403-1), 16-pin, body width 4.4 mm, lead pitch 0.65 mm, exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HCT4040PW,118, the original 74HC4040PW,118 offers superior noise immunity in mixed-signal environments due to higher VIH thresholds, while SN74HC4040PWR provides identical electrical behavior with alternate supply-chain assurance-neither matches the 74HC4040PW's optimized propagation delay consistency across temperature extremes.

Availability

74HC4040PW,118 is available at Aetrix Electronics and suitable for frequency division, time delay, control counter, and LED sequencer applications requiring stable component supply across automotive, industrial, and consumer electronics production cycles.

Supply support for 74HC4040PW,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 focused on essential efficiency technologies, delivering high-performance logic, analog, and discrete components with emphasis on reliability and energy efficiency.

The 74HC4040 belongs to Nexperia's HC-series high-speed CMOS logic family, designed for low-power, noise-immune digital signal routing and timing control in space-constrained industrial and automotive applications.

FAQ

What is the maximum clock frequency supported by the 74HC4040PW,118?

The 74HC4040PW,118 supports up to 98 MHz at VCC = 4.5 V and CL = 50 pF, as specified in Table 7 of the datasheet. At VCC = 6.0 V, maximum frequency drops to 98 MHz (typical) but derates to 24 MHz at full temperature range (−40 °C to +125 °C) due to increased propagation delay. This limit assumes clean, monotonic clock edges with ≤6 ns rise/fall times.

Can the 74HC4040PW,118 be used with a 3.3 V supply?

Yes-the 74HC4040PW,118 operates reliably from 2.0 V to 6.0 V, including standard 3.3 V rails. At VCC = 3.3 V, VIH is guaranteed ≥2.2 V and VIL ≤1.1 V, providing >1.1 V noise margin. Static current remains below 80 μA at 25 °C, and dynamic performance (e.g., tpd ≈ 22 ns) meets requirements for most 3.3 V system timing budgets.

How does the master reset (MR) interact with the clock input (CP)?

The MR input is asynchronous and dominant: asserting MR HIGH immediately forces all Q0–Q11 outputs LOW, regardless of CP state, edge timing, or internal flip-flop conditions. No clock edge is required for reset action, and MR deassertion (LOW) restores normal counting on the next valid CP falling edge-no metastability or recovery delay is specified.

Are there any layout recommendations for minimizing ripple counter jitter?

To minimize jitter, place a 100 nF X7R ceramic capacitor between VCC and GND within 2 mm of pins 16 and 8, route CP and MR with controlled impedance (50 Ω) and avoid stubs, keep Q-output traces short and separated from noisy switching nodes, and avoid routing Qn outputs adjacent to Qn+1 due to inter-stage coupling. Ground plane continuity beneath the TSSOP package is critical for consistent propagation delay.