Nexperia USA Inc. 74HC4040D-Q100J

Overview

74HC4040D-Q100 from Nexperia is an AEC-Q100 Grade 1 qualified 12-stage binary ripple counter with asynchronous master reset (MR), clock input (CP) triggering on HIGH-to-LOW transitions, and twelve Q0–Q11 outputs. It operates from 2.0 V to 6.0 V across –40 °C to +125 °C and delivers propagation delays as low as 14 ns at VCC = 6.0 V, enabling precise frequency division in automotive timing circuits.

For engineers reviewing the 74HC4040D-Q100 datasheet, 74HC4040D-Q100 pinout, 74HC4040D-Q100 application, or 74HC4040D-Q100 equivalent, this device serves as a high-reliability, CMOS-based ripple counter for automotive clock domain partitioning, time-delay generation, and control sequencing where latch-up immunity (>100 mA), ESD robustness (HBM >2000 V), and stable operation under wide temperature and supply ranges are required.

Technical Context

This device implements a cascaded chain of twelve static toggle flip-flops, advancing state only on the falling edge of CP. Each stage drives the next via its Q output, resulting in inherent ripple propagation-Q0 toggles on every CP edge, Q1 on every second edge, up to Q11 dividing by 4096. The MR input forces all outputs LOW asynchronously, independent of CP timing.

Input clamp diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors. Its CMOS-level inputs (VIH ≥ 3.15 V at VCC = 4.5 V) and rail-to-rail output swing (VOH ≥ 3.98 V, VOL ≤ 0.26 V at IO = ±4 mA) ensure compatibility with mixed-voltage logic systems in automotive ECUs.

Key Specifications

Pinout & Package

74HC4040D-Q100 uses the SO16 plastic small outline package (SOT109-1), 16-pin, 3.9 mm body width, with gull-wing leads suitable for reflow soldering and automated optical inspection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HC4040D-Q100, the 74HCT4040D-Q100 offers plug-compatible TTL input compatibility at no thermal or timing penalty, while the SN74LV4040APWR trades automotive qualification for broader low-voltage support-making the original the sole choice for ASIL-B timing-critical domains.

Availability

74HC4040D-Q100 is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, and LED lighting systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC4040D-Q100 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 specializing in high-volume, high-reliability logic, analog, and discrete components for automotive, industrial, and consumer markets.

The 74HC4040-Q100 belongs to Nexperia's automotive-qualified logic portfolio, engineered specifically for timing-critical functions in harsh environments where AEC-Q100 Grade 1 reliability and parametric stability are mandatory.

FAQ

What is the maximum clock frequency supported by 74HC4040D-Q100?

The maximum clock frequency is 98 MHz (typical) at VCC = 6.0 V and CL = 50 pF, measured at the CP input. At VCC = 4.5 V, fmax drops to 72 MHz. These values assume proper PCB layout with minimized trace inductance and local decoupling-exceeding them risks missed counts due to cumulative ripple delay.

Can 74HC4040D-Q100 operate reliably at 2.0 V supply?

Yes-it is fully specified down to 2.0 V, with VIH = 1.5 V (min) and propagation delay of 150 ns (max) at CP-to-Q0. However, output drive strength is reduced (IO = ±4 mA guaranteed only at VCC ≥ 4.5 V), so external pull-ups may be needed for interfacing with 3.3 V receivers at low VCC.

How does the asynchronous MR input behave during power-up?

MR is active HIGH and overrides all clock activity. When VCC ramps from 0 V, MR must be held LOW until VCC exceeds 1.5 V to prevent metastable reset release; a simple RC network (e.g., 100 kΩ + 100 nF) tied to VCC ensures clean deassertion after power stabilization.

Is there any difference in timing between Q0 and Q11 outputs?

Yes-due to ripple architecture, Q11 exhibits cumulative propagation delay: tpd(Q11) ≈ 12 × tpd(stage). At VCC = 6.0 V, Q0 delay is 14–38 ns, but Q11 delay reaches 168–456 ns. This skew must be accounted for in synchronous capture circuits; it does not affect division ratio accuracy.