NXP Semiconductors 74AHCT241PW,118

Overview

74AHCT241PW,118 from Nexperia is an 8-bit 3-state buffer/line driver with dual independent output enables (1OE active-LOW, 2OE active-HIGH), TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), and operation over −40 °C to +125 °C. It supports mixed-voltage translation via overvoltage-tolerant inputs and delivers 8 mA sink/source drive at 4.5 V. Used in bus isolation and data routing in industrial control backplanes.

For engineers reviewing the 74AHCT241PW,118 datasheet, 74AHCT241PW,118 pinout, 74AHCT241PW,118 application, or 74AHCT241PW,118 equivalent, this page provides verified pin functions, TTL-level interface behavior, propagation delay (tpd ≤ 7.9 ns at VCC = 5 V, CL = 50 pF), disable timing (tdis ≤ 13.5 ns), and validated alternatives for bus buffering in high-reliability embedded systems.

Technical Context

The 74AHCT241PW,118 implements two independent 4-bit buffered paths, each controlled by a dedicated enable: 1OE (active-LOW) governs outputs 1Y0–1Y3, while 2OE (active-HIGH) controls 2Y0–2Y3. All inputs feature Schmitt-trigger action for noise immunity and accept voltages up to 7.0 V regardless of VCC, enabling level translation between 3.3 V and 5 V domains.

It operates strictly within 4.5 V to 5.5 V supply range per 74AHCT logic family specification, with static input thresholds fixed at VIH ≥ 2.0 V and VIL ≤ 0.8 V - ensuring robust compatibility with legacy TTL signal sources. Output drive strength is rated at ±8 mA under 4.5 V, supporting direct connection to standard CMOS loads without external termination.

Key Specifications

Pinout & Package

TSSOP20 package (SOT360-1): plastic thin shrink small outline, 20 leads, body width 4.4 mm, 0.65 mm pitch, lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit 3-state buffer applications.

Compared with 74AHCT241PW,118, the SO20 variant offers easier hand-soldering but sacrifices board density and high-temperature power handling, while the TI SN74AHCT241PW provides identical functionality with alternate supply-chain assurance and extended automotive qualification - both require no schematic or layout changes.

Availability

74AHCT241PW,118 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and programmable logic interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74AHCT241PW,118 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 leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.

The 74AHCT241PW,118 belongs to Nexperia's advanced 74AHCT logic family, engineered for robust TTL-level interfacing in harsh environments where reliability, wide temperature operation, and input overvoltage tolerance are mandatory.

FAQ

What logic family does the 74AHCT241PW,118 belong to, and why does it matter for system design?

The 74AHCT241PW,118 belongs to the 74AHCT logic family, which features TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) while delivering CMOS output drive. This matters because it allows seamless integration with legacy 5 V TTL microcontrollers and peripherals without level-shifting circuitry - reducing BOM cost and board area. The 74AHCT241PW,118 ensures deterministic recognition of TTL signal edges even under noisy conditions or marginal VCC tolerances.

Can the 74AHCT241PW,118 interface safely between 3.3 V and 5 V domains?

Yes - the 74AHCT241PW,118 has overvoltage-tolerant inputs rated from −0.5 V to +7.0 V, independent of VCC. This means a 3.3 V FPGA output can directly drive any input pin of the 74AHCT241PW,118 powered at 5 V without risk of latch-up or damage. However, outputs swing rail-to-rail (0 V to 5 V), so downstream 3.3 V receivers require either input tolerance or external clamping. The 74AHCT241PW,118 itself imposes no voltage translation on outputs.

What is the maximum clock/data rate supported by the 74AHCT241PW,118 in a bus application?

The 74AHCT241PW,118 supports data rates up to ~125 MHz in typical 50 pF load conditions, based on its worst-case propagation delay of 7.9 ns (VCC = 5 V, CL = 50 pF) and disable time of 13.5 ns. For reliable setup/hold timing in synchronous bus designs, practical limits are 60–80 MHz depending on trace length and fanout. The 74AHCT241PW,118 achieves this with balanced delays across all eight channels, minimizing inter-bit skew critical for parallel data capture.

How does the dual-output-enable architecture of the 74AHCT241PW,118 improve system flexibility?

The 74AHCT241PW,118 provides two independent 3-state enables: 1OE (active-LOW) for outputs 1Y0–1Y3 and 2OE (active-HIGH) for 2Y0–2Y3. This allows asymmetric bus control - for example, holding one 4-bit segment active while dynamically enabling/disabling the other, enabling time-division multiplexing or hierarchical arbitration without external logic. The 74AHCT241PW,118 eliminates the need for additional gate logic to manage separate bus segments.

Is the 74AHCT241PW,118 qualified for automotive applications?

The 74AHCT241PW,118 is specified from −40 °C to +125 °C and built on Nexperia's qualified automotive process, but it carries no explicit AEC-Q100 certification. It is widely used in automotive body control modules and infotainment interfaces where full qualification is not mandated. For AEC-Q100 Grade 2 compliance, the TI SN74AHCT241PW is a functionally identical alternative with documented automotive qualification - the 74AHCT241PW,118 remains suitable for non-safety-critical automotive subsystems.