Nexperia USA Inc. 74HC4017PW,118

Overview

74HC4017PW,118 from Nexperia is a CMOS Johnson decade counter IC with 10 decoded outputs (Q0–Q9), dual-edge-triggered clock inputs (CP0 rising-edge, CP1 falling-edge), asynchronous master reset (MR), and carry output Q5-9 for cascading. It operates from 2.0 V to 6.0 V, delivers propagation delays as low as 18 ns at 6.0 V, and supports industrial temperature range (−40 °C to +125 °C). It is used in sequential LED drivers, divide-by-N timing circuits, and state-machine controllers.

For engineers reviewing the 74HC4017PW,118 datasheet, 74HC4017PW,118 pinout, 74HC4017PW,118 application, or 74HC4017PW,118 equivalent, this page provides verified functional identity, TSSOP16 package mapping, confirmed 16-pin terminal roles, real-world timing behavior (e.g., 30 MHz max frequency at 4.5 V), and validated alternatives for decade counting and decoding use cases.

Technical Context

The 74HC4017PW,118 implements a 5-stage Johnson counter architecture that generates mutually exclusive decoded outputs across ten states. Its dual-clock interface allows flexible triggering: CP0 advances on LOW-to-HIGH while CP1 = LOW; CP1 advances on HIGH-to-LOW while CP0 = HIGH. The Q5-9 output goes LOW during states 5–9, enabling direct cascade control without external logic.

Internal automatic code correction ensures recovery from illegal states within ≤11 clock cycles. Input clamp diodes permit safe interfacing to voltages exceeding VCC when used with current-limiting resistors. The device complies with JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V) standards and meets HBM ESD >2000 V and CDM >1000 V.

Key Specifications

Pinout & Package

TSSOP16 plastic thin shrink small outline package (SOT403-1); 16 leads; body width 4.4 mm; 0.65 mm pitch; exposed pad optional (non-soldered).

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HCT4017PW,118 and CD4017BE, the 74HC4017PW,118 offers optimal balance of speed (30 MHz), low-voltage operation (2.0 V), and modern TSSOP packaging - making it preferred for space-constrained, battery-powered, or automotive-grade designs requiring robust timing.

Availability

74HC4017PW,118 is available at Aetrix Electronics and suitable for LED chaser controllers, divide-by-N timing circuits, cascaded state machines, and sequential process controllers requiring stable component supply across automotive, industrial, and consumer electronics programs.

Supply support for 74HC4017PW,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, and efficient logic, analog, and discrete components for automotive, industrial, and consumer applications.

The 74HC4017 product line targets robust, low-power decade counting and decoding in space- and power-constrained systems - emphasizing wide supply range, high noise immunity, and industrial temperature resilience.

FAQ

What is the difference between CP0 and CP1 clock inputs?

CP0 is rising-edge triggered and advances the counter only when CP1 is held LOW; CP1 is falling-edge triggered and advances only when CP0 is held HIGH. This dual-clock scheme prevents race conditions during cascading and allows precise control over state transitions without requiring external synchronization logic.

Can 74HC4017PW,118 drive LEDs directly?

Yes - each decoded output can sink or source up to ±4.0 mA at VCC = 4.5 V, sufficient to drive standard 2 mA LEDs with appropriate current-limiting resistors. For higher-current LEDs, external transistors or drivers are recommended to maintain timing integrity and avoid output voltage droop.

How does the Q5-9 carry output work in cascading?

Q5-9 is LOW during counter states 5 through 9 and HIGH otherwise. When wired to CP0 of the next 74HC4017PW,118, it enables that device to advance once per full 10-state cycle of the first - achieving clean 10× counting without glitches or metastability, provided CP0/CP1 timing constraints are met.

Is automatic illegal-state recovery guaranteed?

Yes - internal circuitry detects invalid Johnson codes and restores correct counting within ≤11 clock pulses, as verified in the functional description and test conditions. This eliminates risk of lockup due to power-up transients or noise-induced bit flips, ensuring deterministic long-term operation.