Nexperia USA Inc. 74HC4017D-Q100J

Overview

74HC4017D-Q100 from Nexperia is an AEC-Q100 Grade 1 qualified 5-stage Johnson decade counter with 10 decoded outputs (Q0–Q9), dual-edge-triggered clock inputs (CP0: LOW-to-HIGH; CP1: HIGH-to-LOW), asynchronous master reset (MR), and carry output Q5-9. It operates from 2.0 V to 6.0 V across –40 °C to +125 °C and delivers <69 ns propagation delay at 4.5 V, enabling precise sequential timing in automotive lighting control and dashboard instrumentation.

For engineers reviewing the 74HC4017D-Q100 datasheet, 74HC4017D-Q100 pinout, 74HC4017D-Q100 application, or 74HC4017D-Q100 equivalent, this device supports decade counting, divide-by-N timing (2–10), cascaded decoding, and sequential state generation - all with automotive-grade reliability, CMOS-level input compatibility, and validated SO16 package thermal performance.

Technical Context

The 74HC4017D-Q100 implements a 5-flip-flop Johnson counter architecture with internal code correction that recovers from illegal states within ≤11 clocks. Its dual-clock interface enables flexible edge selection: CP0 advances on rising edge when CP1 = LOW; CP1 advances on falling edge when CP0 = HIGH - supporting both synchronous and asynchronous cascade configurations.

Carry output Q5-9 goes LOW during states 5–9, allowing direct connection to CP0 of the next stage for multi-decade counting. The asynchronous MR input forces Q0 = HIGH and Q1–Q9 = LOW regardless of clock phase, and clamp diodes on all inputs permit safe interfacing with voltages exceeding VCC using current-limiting resistors.

Key Specifications

Pinout & Package

74HC4017D-Q100 uses the SO16 plastic small outline package (SOT109-1), 16-pin, 3.9 mm body width, with standard JEDEC MS-012 footprint and gull-wing leads suitable for automated optical inspection and reflow soldering.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar decade counter applications.

Compared with 74HCT4017D-Q100, the subject part offers broader supply flexibility (2.0–6.0 V vs. 4.5–5.5 V) and lower static current, while SN74LV4017APW trades automotive qualification and speed for lower cost and LV logic compatibility - making 74HC4017D-Q100 optimal for new automotive designs needing robustness and margin.

Availability

74HC4017D-Q100 is available at Aetrix Electronics and suitable for automotive dashboard instrumentation, LED chaser lighting control, and divide-by-N timing generation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC4017D-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 focused on high-volume, high-reliability logic, analog, and discrete components, with leadership in automotive-qualified standard products.

The 74HC4017D-Q100 belongs to Nexperia's automotive logic portfolio, designed specifically to replace microcontroller-based sequencing in cost- and space-constrained automotive subsystems while meeting AEC-Q100 Grade 1 requirements.

FAQ

What is the function of the Q5-9 output?

Q5-9 is a carry output that goes LOW only when the counter is in states 5, 6, 7, 8, or 9 - enabling direct cascade to the CP0 input of a second 74HC4017D-Q100 for multi-decade counting. It is not a decoded output like Q0–Q9 and remains HIGH in states 0–4 and during reset.

Can CP0 and CP1 be used simultaneously?

No - simultaneous triggering violates the functional table: enabling CP1 while CP0 is HIGH, or CP0 while CP1 is LOW, causes unintended extra counts. The device requires strict mutual exclusion: CP0 active only when CP1 = LOW; CP1 active only when CP0 = HIGH.

How does the automatic code correction work?

Internal circuitry detects illegal Johnson counter states (e.g., multiple simultaneous HIGH outputs) and forces correction within ≤11 clock cycles by steering the flip-flop chain back into valid 10-state rotation - no external intervention or reset required.

Is decoupling required on VCC?

Yes - a 100 nF ceramic capacitor placed as close as possible to pin 16 (VCC) and pin 8 (GND) is mandatory to suppress switching noise, ensure stable output levels, and meet AEC-Q100 EMC requirements in automotive environments.