Nexperia USA Inc. 74HC163PW-Q100J

Overview

74HC163PW-Q100 from Nexperia is an AEC-Q100 Grade 1 qualified, synchronous presettable 4-bit binary counter with internal look-ahead carry, synchronous reset (MR), parallel load (PE), and dual count-enable inputs (CEP/CET). It operates from 2.0 V to 6.0 V, delivers glitch-free counting up to 55 MHz at VCC = 6.0 V, and features TTL-compatible input thresholds in the 74HCT variant. It is used in automotive timing control, odometer logic, and modular counter design requiring precise modulus adjustment.

For engineers reviewing the 74HC163PW-Q100 datasheet, 74HC163PW-Q100 pinout, 74HC163PW-Q100 application, or 74HC163PW-Q100 equivalent, key selection criteria include synchronous reset behavior, TSSOP16 thermal performance at +125 °C ambient, CP-to-TC propagation delay (≤37 ns @ VCC = 4.5 V), and compatibility with cascaded counter topologies using CET/TC handshaking.

Technical Context

This device implements four edge-triggered D-type flip-flops with synchronous clocking on the positive-going edge of CP. Count enable logic requires both CEP and CET HIGH to advance; CET directly gates the TC output, enabling clean inter-stage carry signaling without ripple delay. The synchronous MR input forces Q0–Q3 LOW on the next CP edge, independent of PE, CEP, or CET states-enabling deterministic zero-reset in safety-critical automotive sequences.

Parallel loading occurs when PE is LOW, capturing D0–D3 values on the rising CP edge regardless of count-enable status. Input clamp diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors. The look-ahead carry architecture eliminates cumulative propagation delay in multi-stage counters, supporting reliable high-speed cascading up to 16-bit or higher moduli.

Key Specifications

Pinout & Package

TSSOP16 plastic thin shrink small outline package (SOT403-1), 16-pin, 0.65 mm pitch, 4.4 mm body width, lead finish matte tin, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous 4-bit counter applications.

Compared with 74HC163PW-Q100, the 74HCT163PW-Q100 offers superior input compatibility with 5 V TTL sources but shares identical automotive qualification and thermal specs, while the SN74LV163APWRE4 trades AEC-Q100 compliance for broader low-voltage operation and lower static power-making it suitable only for non-safety-critical commercial designs.

Availability

74HC163PW-Q100 is available at Aetrix Electronics and suitable for automotive instrument clusters, ADAS sensor timing modules, and engine control unit diagnostic timers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC163PW-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 delivering high-performance logic, analog, and MOSFET solutions with focus on automotive, industrial, and mobile applications.

The 74HC163-Q100 belongs to Nexperia's automotive-qualified logic portfolio, designed specifically for robust, glitch-free digital timing functions in harsh-temperature automotive subsystems.

FAQ

What is the maximum clock frequency supported by the 74HC163PW-Q100 at 125 °C?

At VCC = 6.0 V and TA = +125 °C, the maximum guaranteed clock frequency is 21 MHz, as specified in Table 7 under "−40 °C to +125 °C" column for fmax. This derating ensures reliable operation under worst-case automotive thermal stress while maintaining synchronous timing integrity.

Can the 74HC163PW-Q100 be used in a 3.3 V system?

Yes-the 74HC163PW-Q100 supports VCC from 2.0 V to 6.0 V, and its CMOS inputs are fully compatible with 3.3 V logic levels. VIH(min) = 1.5 V at VCC = 2.0 V and scales linearly; at 3.3 V, VIH(min) ≈ 2.3 V, safely exceeded by standard 3.3 V outputs.

How does the synchronous reset differ from asynchronous reset in practical circuit design?

Synchronous reset (MR) only takes effect on the next rising CP edge, ensuring no metastability or partial-state updates. This enables predictable state transitions in pipelined automotive control logic, unlike asynchronous reset which can violate setup/hold timing and cause race conditions in multi-clock-domain systems.

Is there a recommended decoupling strategy for the 74HC163PW-Q100 in automotive PCB layouts?

Place a 100 nF X7R ceramic capacitor between VCC (pin 16) and GND (pin 8), located ≤2 mm from the package, plus a 4.7 µF tantalum or polymer capacitor per power rail segment. This suppresses switching noise and maintains stable VCC during high-frequency CP transitions in noisy automotive harness environments.