Nexperia USA Inc. 74HC4040D,652

Overview

74HC4040D,652 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 supports industrial temperature range (−40 °C to +125 °C) in SO16 package. Used in precision frequency division and timing control circuits for industrial instrumentation.

For engineers reviewing the 74HC4040D,652 datasheet, 74HC4040D,652 pinout, 74HC4040D,652 application, or 74HC4040D,652 equivalent, this page provides verified functional identity, validated SO16 pin mapping, confirmed 12-bit ripple counting behavior, real-world timing parameters (e.g., CP→Q0 = 17 ns typ @ 4.5 V), and direct alternatives with documented electrical and application differences.

Technical Context

This device implements a cascaded chain of 12 static toggle flip-flops, where each stage divides its input by two - resulting in Qn output frequency = f_CP/2ⁿ⁺¹. The counter advances only on the HIGH-to-LOW transition of CP; MR forces all outputs LOW asynchronously, overriding clock state.

No internal synchronization or carry lookahead is present - propagation delay accumulates across stages (Qn→Qn+1 = 10 ns typ @ 4.5 V), making it suitable for non-critical timing but unsuitable for high-speed synchronous systems requiring zero skew or metastability immunity.

Key Specifications

Pinout & Package

74HC4040D,652 is housed in a plastic small outline package (SO16, SOT109-1) with 16 leads, 3.9 mm body width, and standard 1.27 mm lead pitch. Pin 1 is marked by a notch or dot; pin numbering follows counterclockwise sequence from top-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HC4040D,652, the 74HCT4040D,652 offers superior TTL interface compatibility at the cost of higher static current, while SN74HC4040N trades industrial temperature range and surface-mount reliability for mechanical ease of use in development environments.

Availability

74HC4040D,652 is available at Aetrix Electronics and suitable for industrial control panels, programmable logic controllers, and embedded timing modules requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for 74HC4040D,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 essential semiconductors, delivering high-performance, reliable components for automotive, industrial, and consumer applications.

The 74HC4040 belongs to Nexperia's industry-standard logic portfolio, designed specifically for robust, low-power digital signal routing and timing control in harsh environments where long-term stability and wide voltage tolerance are mandatory.

FAQ

Can 74HC4040D,652 operate reliably at 3.3 V supply?

Yes - the 74HC4040D,652 is fully specified from 2.0 V to 6.0 V, with VIH = 1.5 V min and VOH = 3.15 V min at VCC = 4.5 V. At 3.3 V, VIH is 1.9 V (typ), ensuring clean recognition of 3.3 V logic HIGH signals. Output swing remains rail-to-rail, supporting direct interface with 3.3 V microcontrollers.

Is there a carry-out or ripple-clock output pin?

No - the 74HC4040D,652 has no dedicated carry-out (RCO) or ripple-clock pin. The highest-order output Q11 serves as de facto carry signal, but its propagation delay includes cumulative stage delays (up to ~225 ns worst-case at 2.0 V). For synchronous carry chaining, external gating of Q11 is required.

What is the minimum pulse width required on CP and MR inputs?

At VCC = 4.5 V, the minimum CP pulse width is 16 ns (HIGH or LOW), and MR pulse width is also 16 ns. These values ensure reliable triggering across the full −40 °C to +125 °C range. Shorter pulses may cause metastability or missed toggles, especially near temperature extremes.

Does this device include Schmitt-trigger inputs for noisy clock sources?

No - the 74HC4040D,652 uses standard CMOS inputs without hysteresis. For clocks with slow rise/fall times or EMI-induced noise, external RC filtering or a dedicated Schmitt-trigger buffer (e.g., 74HC14) is required before CP to prevent multiple counting on a single edge.