Nexperia USA Inc. 74LVT16240ADGG,112

Overview

74LVT16240ADGG,112 from Nexperia is a 3.3 V 16-bit inverting buffer/driver with 3-state outputs, designed for high-speed bus interface applications in mixed-voltage systems. It features four independent output enable inputs (1OE–4OE), ±64 mA/–32 mA drive capability, TTL-compatible I/O, and bus-hold inputs eliminating external pull-ups. Used in industrial control backplanes and 5 V/3.3 V level-translating data buses.

For engineers reviewing the 74LVT16240ADGG,112 datasheet, 74LVT16240ADGG,112 pinout, 74LVT16240ADGG,112 application, or 74LVT16240ADGG,112 equivalent, key selection criteria include 3-state timing (tPZH ≤ 4.0 ns), bus-hold current (IBHL = 75–135 μA), 3.3 V supply operation with 5 V tolerant inputs, and TSSOP48 thermal and layout constraints.

Technical Context

This BiCMOS device implements four independent 4-bit inverting 3-state buffers, each controlled by a dedicated active-low output enable (OE) input. Its architecture supports live insertion/extraction and power-up 3-state behavior, ensuring no bus contention during power sequencing.

Input clamping (VIK ≤ –1.2 V), 5 V-tolerant I/O, and bus-hold circuitry (IBHH/IBHL specified at 3 V) enable direct interfacing with legacy 5 V logic without level shifters. Static and dynamic characteristics are guaranteed across –40 °C to +85 °C with VCC = 2.7–3.6 V.

Key Specifications

Pinout & Package

TSSOP48 package (SOT362-1), 48-pin plastic thin shrink small outline, 6.1 mm body width, 0.5 mm pitch, lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16240ADGGR and 74ALVCH16240QFG, the 74LVT16240ADGG,112 uniquely combines 5 V-tolerant inputs, ±64 mA drive, and integrated bus-hold in a standard TSSOP48 - making it optimal for industrial backplanes requiring robust mixed-voltage interfacing and mechanical serviceability.

Availability

74LVT16240ADGG,112 is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory subsystem buffering, automated test equipment signal conditioning, and programmable logic I/O expansion requiring stable component supply and long-term lifecycle support.

Supply support for 74LVT16240ADGG,112 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 specializing in high-performance logic, analog, and MOSFET solutions, with manufacturing rooted in process innovation and automotive-grade reliability standards.

The 74LVT series targets high-speed, mixed-voltage bus interface applications where 3.3 V operation, 5 V tolerance, and robust ESD/latch-up immunity are critical - particularly in industrial control and communications infrastructure.

FAQ

Can 74LVT16240ADGG,112 operate with a 2.5 V supply?

No. The recommended operating VCC range is 2.7 V to 3.6 V per Table 5. At 2.5 V, VIH minimum (2.0 V) and VOH specifications fall out of guarantee, and bus-hold functionality degrades below VCC = 2.7 V. Operation below 2.7 V risks incorrect logic thresholds and increased static current.

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

Based on dynamic characteristics and output drive specs, the device supports up to 50 pF load capacitance while maintaining tPLH/tPHL ≤ 3.2 ns (max @ 3.3 V). For heavier loads (>50 pF), propagation delay increases and edge rate degrades - verify timing margins using the test circuit in Figure 5 with CL = 50 pF and RL = 500 Ω.

How does bus-hold function interact with externally pulled inputs?

Bus-hold circuitry activates only when an input is floating (neither driven nor externally biased). If an input is actively driven or pulled via resistor < 10 kΩ, bus-hold is overridden. With weak pulls (>100 kΩ), bus-hold dominates and maintains the last valid logic state, preventing metastability during signal transitions.

Is thermal derating required for continuous 64 mA output current?

Yes. Sustained 64 mA per output at +85 °C ambient requires PCB copper area ≥ 200 mm² per VCC/GND pair and ≤ 2 outputs simultaneously active at max current. Junction temperature must stay ≤ 150 °C; use θJA ≈ 50 °C/W (TSSOP48, 2-layer board) to calculate allowable power dissipation.