Nexperia USA Inc. 74AHC573PW-Q100J

Overview

74AHC573PW-Q100 from Nexperia is an automotive-qualified octal D-type transparent latch with 3-state outputs, operating across 2.0 V to 5.5 V supply voltage and rated for −40 °C to +125 °C. It features independent latch enable (LE, active HIGH) and output enable (OE, active LOW), overvoltage-tolerant inputs up to 5.5 V, and Schmitt-trigger inputs for noise immunity - used in automotive body control modules for bus isolation and data latching between mixed-voltage subsystems.

For engineers reviewing the 74AHC573PW-Q100 datasheet, 74AHC573PW-Q100 pinout, 74AHC573PW-Q100 application, or 74AHC573PW-Q100 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification, 3-state output timing (tdis ≤ 12.5 ns at VCC = 5 V), input overvoltage tolerance, and TSSOP20 package compatibility with automated optical inspection (AOI) via side-wettable flanks.

Technical Context

This device implements eight independent D-type latches with transparent mode operation when LE is HIGH and edge-triggered capture on LE HIGH-to-LOW transition. Each latch output drives a common 3-state buffer controlled solely by OE, decoupling output enable from latch state retention.

Input logic levels are CMOS-compatible (VIH ≥ 3.85 V at VCC = 5.5 V), and all inputs include Schmitt-trigger action for robust noise rejection. Propagation delays (tpd) range from 3.9 ns to 11.0 ns depending on VCC and load, with balanced tPHL/tPLH performance ensuring minimal skew across all eight channels.

Key Specifications

Pinout & Package

TSSOP20 package (SOT360-1): 20-pin thin shrink small outline, 4.4 mm body width, side-wettable flanks for AOI-compatible solder joint inspection.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal transparent latch applications.

Compared with 74AHCT573PW-Q100, the subject part offers superior noise immunity via Schmitt-trigger inputs and higher VIH margin, while SN74LV573AQPWRQ1 trades speed for broader low-voltage operation - making the 74AHC573PW-Q100 optimal for new 3.3 V/5 V mixed-signal automotive nodes demanding robustness and speed.

Availability

74AHC573PW-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster interfaces, ADAS camera sequencing, and infotainment audio routing requiring stable component supply across extended temperature ranges and AEC-Q100 compliance.

Supply support for 74AHC573PW-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-performance logic, analog, and MOSFET solutions, with leadership in automotive-qualified components and advanced packaging technologies.

The 74AHC-Q100 series delivers AEC-Q100-compliant, high-speed logic devices optimized for automotive subsystems requiring robust mixed-voltage interfacing, low power, and AOI-ready packaging.

FAQ

What is the maximum clock/data frequency supported by the 74AHC573PW-Q100?

The device does not operate on a clock signal; it is a transparent latch controlled by LE and OE. Its usable data rate depends on propagation delay and setup/hold timing: with tpd ≤ 8.5 ns and tsu/th = 3.5 ns/1.5 ns at VCC = 5 V, it reliably captures data edges up to approximately 80 MHz in synchronous latch-enable configurations, assuming proper PCB layout and load capacitance ≤ 50 pF.

Can the 74AHC573PW-Q100 be used with a 2.5 V supply?

Yes - the device is fully specified from 2.0 V to 5.5 V. At VCC = 2.5 V, VIH is guaranteed ≥ 1.75 V and VIL ≤ 0.75 V per datasheet Table 6, and propagation delay increases to ≤ 14.0 ns (CL = 50 pF). All DC and AC parameters remain valid across this range, making it suitable for 2.5 V automotive subsystems such as telematics basebands.

Is the thermal pad on the TSSOP20 package electrically connected?

No - the exposed thermal pad on the SOT360-1 (TSSOP20) package is not electrically connected to any internal node. Per Nexperia documentation, it may be left floating or connected to GND for thermal improvement, but no electrical requirement exists. Soldering it to GND is permissible and recommended for thermal performance, provided the land pattern avoids shorting adjacent pins.

How does the 74AHC573PW-Q100 differ from standard commercial-grade 74AHC573 variants?

The -Q100 suffix indicates full AEC-Q100 Grade 1 qualification: extended temperature operation (−40 °C to +125 °C), enhanced ESD robustness (HBM > 2000 V), rigorous lot acceptance testing, and traceable automotive-grade wafer fabrication and assembly. Commercial versions lack these validations and are not approved for safety-critical or under-hood automotive deployment.