Nexperia USA Inc. 74LVT241DB,118

Overview

74LVT241DB,118 from Nexperia is a 3.3 V BiCMOS octal 3-state buffer/line driver with dual independent output enables (1OE active LOW, 2OE active HIGH), ±64 mA/–32 mA drive capability, bus-hold inputs, and operation from –40 °C to +85 °C. It interfaces 3.3 V logic to 5 V buses and drives high-capacitance bus lines in industrial control backplanes.

For engineers reviewing the 74LVT241DB,118 datasheet, 74LVT241DB,118 pinout, 74LVT241DB,118 application, or 74LVT241DB,118 equivalent, key selection criteria include dual 3-state control timing, bus-hold input retention without external resistors, TTL-compatible I/O levels, and SO20 package thermal performance at 3.3 V supply.

Technical Context

This device implements two independent 4-bit 3-state buffer groups (Group 1: 1A0–1A3 → 1Y0–1Y3; Group 2: 2A0–2A3 → 2Y0–2Y3), each controlled by separate enable inputs (1OE active LOW, 2OE active HIGH). Its BiCMOS architecture delivers low static current (0.12 mA typical) while supporting fast propagation delays (2.8 ns typical tPLH/tPHL at 3.3 V).

Bus-hold circuitry maintains valid logic states on unused inputs (IBHL = 75–150 μA LOW, IBHH = –150 to –75 μA HIGH), eliminating external pull-ups. Power-up 3-state behavior prevents bus contention during power sequencing, and live insertion/extraction is supported per JEDEC standards.

Key Specifications

Pinout & Package

74LVT241DB,118 is supplied in SO20 (SOT163-1) plastic small outline package: 20-pin, 7.5 mm body width, 1.27 mm pitch, gull-wing leads, JEDEC MS-013 compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74LVT241DB,118, SN74LVC244APWR lacks 5 V bus drive and dual-enable flexibility, while 74ALVCH162244DGGR offers more channels but sacrifices output 5 V tolerance-making the 74LVT241DB,118 uniquely suited for mixed-voltage bus bridging with minimal external components.

Availability

74LVT241DB,118 is available at Aetrix Electronics and suitable for industrial backplane interfaces, legacy system bus extensions, modular I/O modules, and programmable logic carrier boards requiring stable component supply across extended temperature ranges.

Supply support for 74LVT241DB,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 semiconductor expert headquartered in Nijmegen, Netherlands, specializing in high-performance logic, analog, and discrete components for industrial, automotive, and computing markets.

The 74LVT series targets high-speed, low-power bus interface applications in industrial control and communications infrastructure, emphasizing robustness, mixed-voltage interoperability, and long-term supply stability.

FAQ

Can 74LVT241DB,118 drive a 5 V bus directly?

Yes. Its outputs are 5 V-tolerant and rated for ±64 mA sink/source, enabling direct connection to 5 V buses without level shifters. Input pins accept 0–5.5 V signals, and output voltage swing meets TTL thresholds when loaded, verified across –40 °C to +85 °C per datasheet Table 6.

What is the purpose of the two separate output enables (1OE and 2OE)?

1OE (active LOW) controls outputs 1Y0–1Y3; 2OE (active HIGH) controls outputs 2Y0–2Y3. This allows independent arbitration of two 4-bit data segments on the same bus-for example, separating address and data lanes or enabling staggered timing to reduce simultaneous switching noise.

Does 74LVT241DB,118 require external pull-up resistors on unused inputs?

No. All eight data inputs feature integrated bus-hold circuitry (IBHL/IBHH ±75 μA typical), which actively maintains the last-valid logic state. This eliminates external pull resistors, reduces BOM cost, and prevents floating-input-induced noise or oscillation.

Is the SO20 package (SOT163-1) thermally adequate for continuous 64 mA output current?

Yes. At Tamb = +85 °C and full 64 mA sink per output, total power dissipation remains below 500 mW (Ptot limit), and the SO20 package's thermal resistance (Rth(j-a) ≈ 100 K/W) ensures junction temperature stays under 150 °C per datasheet limiting values and derating curves.