Nexperia USA Inc. 74ALVT16244DL,118

Overview

74ALVT16244DL,118 from Nexperia is a 16-bit non-inverting 3-state buffer/line driver in TSSOP48 package, operating from 2.3 V to 3.6 V supply, featuring four independent output-enable controls (1OE–4OE), bus-hold inputs eliminating external pull-ups, and overvoltage-tolerant inputs up to 5.5 V. It supports flexible partitioning as four 4-bit, two 8-bit, or one 16-bit buffer for high-density data bus interfacing in industrial control backplanes.

For engineers reviewing the 74ALVT16244DL,118 datasheet, 74ALVT16244DL,118 pinout, 74ALVT16244DL,118 application, or 74ALVT16244DL,118 equivalent, key selection criteria include 3.3 V/2.5 V dual-voltage compatibility, sub-3 ns propagation delay at 3.3 V, IOFF partial power-down capability, and guaranteed -40 °C to +85 °C operation with bus-hold input stabilization.

Technical Context

This BiCMOS device implements four independent 4-bit buffer sections, each with dedicated active-low output enable (nOE) controlling high-impedance state on its four outputs. Input clamping and overvoltage tolerance (up to 5.5 V) allow safe interfacing with 5 V logic while powered from 2.3–3.6 V supplies.

The IOFF circuitry ensures negligible leakage (< ±100 μA) when VCC = 0 V, enabling live insertion and hot-swap support. Bus-hold inputs maintain valid logic states on unused pins without external resistors-IBHL ≥ 75 μA (LOW) and IBHH ≤ −75 μA (HIGH) at 3 V.

Key Specifications

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch, lead finish matte tin.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit 3-state buffer applications.

Compared with SN74ALVTH16244VR and 74LVC16244APAG, the 74ALVT16244DL,118 uniquely combines industrial temperature range, 5.5 V input tolerance, and integrated bus-hold-reducing design complexity and component count in ruggedized embedded systems.

Availability

74ALVT16244DL,118 is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory expansion modules, communications line driving, and test equipment signal conditioning requiring stable component supply across extended temperature ranges.

Supply support for 74ALVT16244DL,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 delivering high-performance, reliable discrete, logic, and MOSFET devices optimized for efficiency and miniaturization in high-volume applications.

The 74ALVT series targets high-speed, low-voltage bus interface applications in industrial, computing, and communications equipment-designed specifically for robust operation under mixed-voltage, thermally demanding, and electrically noisy conditions.

FAQ

Does 74ALVT16244DL,118 support hot-swap operation?

Yes. Its IOFF circuitry guarantees ≤ ±100 μA leakage when VCC = 0 V, preventing back-current flow into powered subsystems. This enables safe insertion and removal in live backplanes-verified per JESD78 Class II latch-up immunity (>500 mA) and ESD robustness (HBM >2000 V).

Can this device drive a 5 V bus while powered from 3.3 V?

Yes. Inputs tolerate up to 5.5 V regardless of VCC, and outputs in HIGH state exhibit no current loading when tied to 5 V-confirmed by zero net current draw in static tests. However, VOH is limited to ~2.3 V at 3.3 V VCC, so downstream receivers must accept TTL-compatible thresholds.

How does bus-hold functionality eliminate external resistors?

Bus-hold provides internal weak feedback (IBHL ≥ 75 μA LOW, IBHH ≤ −75 μA HIGH at 3 V) that actively maintains the last-valid logic state on unused inputs. This replaces 10 kΩ external pull-ups/downs, saving PCB space, reducing assembly cost, and avoiding resistor-induced timing delays.

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

With 64 mA sink capability and 9 pF typical output capacitance, the device drives ≥ 50 pF loads while maintaining <2.5 ns propagation delay and <0.5 V VOL at 3.0 V VCC. Test data (Table 9) confirms stable operation with 50 pF CL and 500 Ω RL under 10 MHz toggling.