Nexperia USA Inc. 74AHC244PW-Q100,11

Overview

74AHC244PW-Q100 from Nexperia is an automotive-qualified octal 3-state buffer/line driver in TSSOP20 package, operating from 2.0 V to 5.5 V supply, featuring dual independent output enables (1OE, 2OE), overvoltage-tolerant inputs up to 5.5 V, and Schmitt-trigger inputs for noise immunity - used in automotive body control modules for bidirectional signal buffering between microcontrollers and sensor/actuator interfaces.

For engineers reviewing the 74AHC244PW-Q100 datasheet, 74AHC244PW-Q100 pinout, 74AHC244PW-Q100 application, or 74AHC244PW-Q100 equivalent, this page delivers verified functional identity, AEC-Q100 Grade 1 qualification status, TSSOP20 package mapping, 20-pin terminal roles, propagation delay (≤7.0 ns at VCC = 4.5–5.5 V, CL = 50 pF), and direct alternatives with input-level and timing differences.

Technical Context

The device implements two independent 4-bit non-inverting buffers, each controlled by a dedicated active-low output enable (1OE for Y0–Y3 group, 2OE for Y0'–Y3' group). All eight inputs accept CMOS logic levels and tolerate up to 5.5 V regardless of VCC, enabling mixed-voltage translation between 3.3 V and 5 V domains.

It uses standard CMOS silicon technology with Schmitt-trigger inputs on all channels, delivering high noise immunity and clean signal regeneration. Output drive capability is ±8 mA at VCC = 4.5 V, with balanced tPLH/tPHL propagation delays and guaranteed 3-state isolation leakage ≤±10.0 μA across -40 °C to +125 °C.

Key Specifications

Pinout & Package

TSSOP20 package (SOT360-1): 20-terminal plastic thin shrink small outline, 4.4 mm body width, 0.65 mm pitch, 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 3-state buffer applications.

Compared with 74AHCT244PW-Q100, the 74AHC244PW-Q100 offers superior noise immunity and wider voltage translation but requires CMOS-level sources; versus SN74LVC244APWRQ1, it trades lower power for robust 5.5 V overvoltage tolerance critical in chassis harness environments.

Availability

74AHC244PW-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster interfaces, engine control unit sensor hubs, and infotainment audio buses requiring stable component supply across extended temperature ranges and AEC-Q100 compliance.

Supply support for 74AHC244PW-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 high-volume, high-reliability logic, discrete, and MOSFET solutions, with core R&D in Nijmegen, Netherlands, and manufacturing in Asia and Europe.

This device belongs to Nexperia's automotive logic portfolio designed specifically for AEC-Q100-compliant signal conditioning in harsh-temperature vehicle subsystems, emphasizing robustness, low power, and mixed-voltage interoperability.

FAQ

Is the 74AHC244PW-Q100 pin-compatible with non-automotive versions like 74AHC244PW?

Yes - the 74AHC244PW-Q100 shares identical pinout, electrical characteristics, and package (SOT360-1) with industrial-grade 74AHC244PW, but adds AEC-Q100 Grade 1 qualification, extended temperature validation (-40 °C to +125 °C), and enhanced reliability screening including HTOL and ESD testing per JS-001/JS-002 standards.

Can 1OE and 2OE be tied together for single-enable operation?

Yes - connecting 1OE and 2OE to a common control signal enables full 8-bit 3-state operation. The internal logic treats both as independent active-low enables; tying them does not affect timing or drive strength, and is commonly used in CAN transceiver interface designs where unified bus control is required.

What is the maximum capacitive load this device can drive reliably?

The datasheet specifies performance up to 50 pF load capacitance with guaranteed timing (tpd ≤ 7.0 ns at VCC = 4.5–5.5 V). Driving >50 pF may increase propagation delay and reduce edge rate; for 100 pF loads, derate VCC to ≥4.75 V and verify setup/hold margins in target application using actual board parasitics.

Does the device require external pull-up or pull-down resistors on unused inputs?

No - all inputs feature Schmitt-trigger action with defined thresholds and negligible leakage (<2.0 μA). Unused inputs may be left floating only if system-level noise is absent; best practice is to tie unused inputs to VCC or GND via 10 kΩ resistors to prevent oscillation in high-EMI automotive environments.