Nexperia USA Inc. 74HC4020PW-Q100J

Overview

74HC4020PW-Q100 from Nexperia is an AEC-Q100 Grade 1 qualified 14-stage binary ripple counter with asynchronous master reset (MR), clock input (CP) triggered on HIGH-to-LOW transition, and 12 buffered outputs (Q0, Q3–Q13). It operates from 2.0 V to 6.0 V, delivers ≤24 ns propagation delay at VCC = 6.0 V, and supports automotive ambient temperatures up to +125 °C. Used in frequency division and timing control circuits where precise cascaded division by powers of two is required.

For engineers reviewing the 74HC4020PW-Q100 datasheet, 74HC4020PW-Q100 pinout, 74HC4020PW-Q100 application, or 74HC4020PW-Q100 equivalent, this page provides verified functional identity, TSSOP16 package mapping, validated 16-pin terminal roles, automotive-grade thermal and ESD specs (HBM >2000 V), and direct alternatives with documented logic-level and timing differences.

Technical Context

This device implements a static toggle flip-flop chain with no internal synchronization-each stage advances on the falling edge of the preceding stage's output, resulting in inherent ripple propagation. The MR input overrides all stages asynchronously, forcing Q0–Q13 LOW regardless of CP state.

Input clamp diodes enable safe interfacing to voltages exceeding VCC when used with current-limiting resistors. CMOS-level inputs (74HC variant) ensure compatibility with 3.3 V and 5 V logic families while maintaining low quiescent current (≤160 μA at +125 °C).

Key Specifications

Pinout & Package

TSSOP16 plastic thin shrink small outline package (SOT403-1); 16-lead, 4.4 mm body width; 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 14-stage binary ripple counter applications.

Compared with 74HCT4020PW-Q100, the 74HC4020PW-Q100 offers superior noise immunity and faster propagation but requires CMOS-level drive; versus SN74HC4020PWR, it adds AEC-Q100 compliance and TSSOP packaging for space-constrained automotive PCBs.

Availability

74HC4020PW-Q100 is available at Aetrix Electronics and suitable for automotive engine control units, ADAS sensor modules, and infotainment systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC4020PW-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 essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions optimized for automotive, industrial, and mobile markets.

The 74HC4020-Q100 belongs to Nexperia's automotive-qualified logic portfolio, engineered specifically for timing-critical functions in safety-relevant vehicle subsystems where reliability and temperature resilience are mandatory.

FAQ

What is the maximum clock frequency supported by the 74HC4020PW-Q100?

The 74HC4020PW-Q100 supports up to 109 MHz at VCC = 6.0 V with CL = 15 pF, as specified in Table 7 of the datasheet. At 4.5 V, the maximum is 92 MHz. These values assume proper PCB layout, decoupling, and load capacitance - exceeding them risks metastability or skipped counts due to ripple propagation delay accumulation.

Can the 74HC4020PW-Q100 be used with a 3.3 V supply?

Yes - the 74HC4020PW-Q100 is fully specified from 2.0 V to 6.0 V, including 3.3 V operation. At VCC = 3.3 V, VIH is guaranteed ≥2.1 V and VOL ≤0.26 V at 4 mA sink, ensuring compatibility with standard 3.3 V CMOS logic families without level translation.

Is the MR (master reset) input synchronous or asynchronous?

The MR input is asynchronous and active-HIGH. When MR is driven HIGH, all internal flip-flops reset immediately regardless of CP state or timing - outputs Q0–Q13 go LOW within tPHL(MR→Qn) ≤51 ns (VCC = 4.5 V), with no dependency on the clock edge.

Does the 74HC4020PW-Q100 have Schmitt-trigger inputs?

No - the 74HC4020PW-Q100 uses standard CMOS inputs without hysteresis. Its input thresholds are proportional to VCC (VIH ≈ 0.7 × VCC, VIL ≈ 0.3 × VCC), making it unsuitable for slow-rising or noisy clock signals unless externally conditioned with a Schmitt-trigger buffer.