NXP Semiconductors 74LVT241PW/AUJ

Overview

74LVT241PW/AUJ from Nexperia is a 3.3 V octal 3-state buffer/line driver with dual output enables (1OE active LOW, 2OE active HIGH), ±32 mA/±64 mA drive capability, bus-hold inputs, and operation from -40 °C to +85 °C. It interfaces 3.3 V logic to 5 V buses in high-speed data path applications such as memory address/data buffering and backplane driving.

For engineers reviewing the 74LVT241PW/AUJ datasheet, 74LVT241PW/AUJ pinout, 74LVT241PW/AUJ application, or 74LVT241PW/AUJ equivalent, this page delivers verified electrical parameters, TSSOP20 package mapping, functional timing behavior, bus-hold implementation details, and validated alternative options for industrial bus interface design.

Technical Context

The 74LVT241PW/AUJ implements a BiCMOS architecture enabling TTL-compatible input thresholds (VIL ≤ 0.8 V, VIH ≥ 2.0 V) while operating from a 2.7–3.6 V supply. Its two independent 4-bit groups (1A0–1A3/1Y0–1Y3 and 2A0–2A3/2Y0–2Y3) are controlled by separate enable signals, supporting asymmetric bus control and partial bus isolation.

Bus-hold circuitry maintains stable logic states on unused inputs without external pull-ups (IBHL = 75–150 μA, IBHH = –75 to –150 μA), and live insertion/extraction is supported via power-up 3-state behavior and I/O clamping (VI = –0.5 to +7.0 V, IO = ±64 mA). Propagation delays are specified at 1.0–3.8 ns (tPLH/tPHL) under 3.3 V ± 0.3 V conditions.

Key Specifications

Pinout & Package

TSSOP20 package (SOT360-1): plastic thin shrink small outline, 20 leads, body width 4.4 mm, 0.65 mm pitch, exposed thermal pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74LVT241PW/AUJ, 74LVT240PW provides identical physical and electrical interface but inverts data, while SN74LVC244APW sacrifices 5 V tolerance and bus-hold for lower static power and reduced cost in homogeneous 3.3 V designs.

Availability

74LVT241PW/AUJ is available at Aetrix Electronics and suitable for memory subsystems, industrial backplanes, PLC I/O expansion, and legacy bus interface adapters requiring stable component supply across extended temperature ranges.

Supply support for 74LVT241PW/AUJ 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 efficiency, reliability, and miniaturization.

The 74LVT241PW/AUJ belongs to Nexperia's LVT (Low-Voltage TTL) logic family, engineered for high-speed 3.3 V bus interfacing with 5 V tolerance and robust industrial operating margins.

FAQ

What is the maximum input voltage rating for 74LVT241PW/AUJ?

The 74LVT241PW/AUJ supports input voltages up to +7.0 V relative to GND, enabling safe interfacing with 5 V logic systems without external level-shifting components. This 5 V tolerance applies to all data and control pins (1A0–1A3, 2A0–2A3, 1OE, 2OE) and is sustained under clamping current limits of ±50 mA, as specified in Table 4 of the datasheet.

Does 74LVT241PW/AUJ require external pull-up resistors on unused inputs?

No, the 74LVT241PW/AUJ integrates bus-hold circuitry on all data inputs (1A0–1A3, 2A0–2A3), maintaining stable logic states without external pull-up or pull-down resistors. The bus-hold current (IBHL = 75–150 μA, IBHH = –75 to –150 μA) actively retains the last valid logic level, reducing component count and PCB area in systems with partially utilized buses.

How does the dual output enable (1OE and 2OE) function in 74LVT241PW/AUJ?

In the 74LVT241PW/AUJ, 1OE (pin 1) is active LOW and controls outputs 1Y0–1Y3, while 2OE (pin 4 and 19) is active HIGH and controls outputs 2Y0–2Y3. This allows independent 3-state control of two 4-bit groups-enabling partial bus isolation, staggered data enable timing, or asymmetric bus arbitration without additional logic gates.

What is the typical propagation delay of 74LVT241PW/AUJ at 3.3 V supply?

At VCC = 3.3 V ± 0.3 V and Tamb = 25 °C, the 74LVT241PW/AUJ exhibits typical propagation delays of 2.8 ns for both tPLH (LOW-to-HIGH) and tPHL (HIGH-to-LOW) between data inputs and corresponding outputs (e.g., 1A0 to 1Y0). These values scale predictably across the –40 °C to +85 °C range, with worst-case delays of 3.8 ns under full-spec conditions.

Is 74LVT241PW/AUJ suitable for hot-swap applications?

Yes, the 74LVT241PW/AUJ supports live insertion/extraction due to its power-up 3-state behavior, robust input/output clamping (VI/VO = –0.5 to +7.0 V), and latch-up protection exceeding 500 mA per JESD78 Class II Level A. These features prevent bus contention and device damage during hot-plug events in modular backplane and rack-mounted systems.