Nexperia USA Inc. 74HC573PW-Q100,118

Overview

74HC573PW-Q100 from Nexperia is an automotive-grade octal D-type transparent latch with 3-state outputs, designed for bus-oriented data latching in microprocessor I/O ports. It operates across 2.0 V to 6.0 V supply, supports -40 °C to +125 °C ambient range, features active-HIGH latch enable (LE) and active-LOW output enable (OE), and delivers 14 ns propagation delay at VCC = 6.0 V - enabling reliable bidirectional data buffering in automotive body control modules.

For engineers reviewing the 74HC573PW-Q100 datasheet, 74HC573PW-Q100 pinout, 74HC573PW-Q100 application, or 74HC573PW-Q100 equivalent, this device serves as a drop-in-compatible AEC-Q100 Grade 1 latch for CAN/LIN gateway interface buffering, instrument cluster display data staging, ADAS sensor data capture, and powertrain ECU address/data bus isolation where CMOS-level input compatibility and low-power 3-state bus driving are required.

Technical Context

This device implements eight independent D-type latches with shared LE and OE controls, operating in two distinct modes: transparent (LE = HIGH) where Qn follows Dn in real time, and latched (LE = LOW) where outputs hold prior data regardless of input changes. Its dual-mode operation enables precise timing control over data capture windows synchronized to system clocks or control signals.

The 3-state outputs are fully decoupled from latch state - OE asserts high-impedance independently of LE status, allowing dynamic bus sharing without disturbing stored data. Input clamp diodes support interfacing to voltages exceeding VCC when used with current-limiting resistors, enhancing robustness in mixed-voltage automotive subsystems.

Key Specifications

Pinout & Package

TSSOP20 package (SOT360-1): 4.4 mm body width, 0.65 mm pitch, 20-terminal surface-mount plastic thin shrink small outline package with gull-wing leads and exposed pad option for thermal enhancement.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HC573PW-Q100, the 74HCT573PW-Q100 offers TTL input compatibility at the cost of higher static current, while SN74LV573APWREP delivers superior speed and low-voltage operation but lacks Grade 1 thermal qualification - making the original part optimal for cost-sensitive, wide-temperature automotive control nodes.

Availability

74HC573PW-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster interfaces, ADAS sensor data acquisition, and powertrain ECU address/data bus isolation requiring stable component supply across extended temperature ranges and AEC-Q100 compliance.

Supply support for 74HC573PW-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-volume, high-reliability logic, analog, and discrete components for automotive, industrial, and consumer markets.

The 74HC573-Q100 belongs to Nexperia's automotive-qualified HC logic family, engineered specifically for robust, low-power data latching in safety-critical vehicle subsystems operating across extreme ambient temperatures.

FAQ

What is the maximum clock frequency supported by the 74HC573PW-Q100?

The 74HC573PW-Q100 does not operate on a clock signal - it is a transparent latch controlled by level-sensitive LE and OE inputs. Its usable data rate is determined by propagation delay (14 ns max at 6 V) and setup/hold times (13 ns su / 5 ns h at 6 V), supporting reliable operation up to approximately 40 MHz for synchronous bus applications with proper timing margins.

Can the 74HC573PW-Q100 interface directly with 3.3 V microcontrollers?

Yes - its 2.0 V to 6.0 V supply range and CMOS-compatible inputs (VIH = 0.7×VCC) allow direct connection to 3.3 V MCUs. At VCC = 3.3 V, VIH = 2.31 V and VIL = 0.99 V provide 0.69 V noise margin, and VOH/VOL meet 3.3 V logic thresholds with ±6 mA drive capability, eliminating need for level translators in most cases.

How does the latch enable (LE) pin function during power-up?

During power-up, LE must be held LOW until VCC stabilizes above 2.0 V to prevent metastability or unintended data capture. The device has no internal power-on reset; external RC or supervisor circuitry should ensure LE remains inactive until supply rails settle, as undefined LE states during ramp-up may cause unpredictable Qn output behavior.

Is the TSSOP20 package (SOT360-1) lead-free and RoHS compliant?

Yes - the 74HC573PW-Q100 in TSSOP20 packaging is manufactured using lead-free solderable terminations and complies with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with full material declarations available through Nexperia's product change notifications and environmental reports.