Nexperia USA Inc. 74ALVT16827DGG,118

Overview

74ALVT16827DGG,118 from Nexperia is a 20-bit non-inverting 3-state buffer/line driver in TSSOP56 (SOT364-1) package, operating from 2.3 V to 3.6 V supply. It supports dual 10-bit or unified 20-bit bus buffering with independent active-low output enables (1OE0/1OE1/2OE0/2OE1), bus hold on all data inputs, and 5.5 V overvoltage-tolerant inputs-enabling direct TTL-level interfacing in high-density memory and address bus applications.

For engineers reviewing the 74ALVT16827DGG,118 datasheet, 74ALVT16827DGG,118 pinout, 74ALVT16827DGG,118 application, or 74ALVT16827DGG,118 equivalent, this device is selected for low-voltage, high-speed bus isolation where bus hold eliminates external pull-ups, IOFF enables partial power-down, and sub-3 ns propagation delays at 3.3 V support DDR memory subsystems and FPGA I/O expansion.

Technical Context

The 74ALVT16827 implements BiCMOS logic architecture to achieve high-speed switching (tPLH/tPHL ≤ 2.3 ns at VCC = 3.3 V) while maintaining strong drive capability (IOL = 64 mA, IOH = −32 mA). Its dual-section design allows independent control of two 10-bit channels via four dedicated active-low enable inputs (1OE0/1OE1/2OE0/2OE1), enabling selective bus gating without channel crosstalk.

Bus hold circuitry actively maintains valid logic states on unused inputs (IBHL = 75–130 μA, IBHH = −75 to −140 μA at VCC = 3 V), eliminating floating node risks. The IOFF protection circuit ensures near-zero leakage (< ±100 μA) when VCC = 0 V, supporting hot-swap and power sequencing in multi-rail systems.

Key Specifications

Pinout & Package

TSSOP56 (SOT364-1) package: plastic thin shrink small outline, 56-pin, 6.1 mm body width, 0.5 mm pitch, 1.2 mm max height - optimized for high-density PCB layouts with thermal and mechanical reliability per JEDEC MO-153.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 20-bit non-inverting buffer applications.

Compared with SN74ALVTH16827DGGR, the 74ALVT16827DGG,118 adds bus hold and IOFF-critical for uncontrolled input states and hot-swap. Versus 74LVC16244ADGG,118, it delivers 2.7× higher sink current and 5.5 V input tolerance, making it uniquely suited for mixed-voltage industrial backplanes.

Availability

74ALVT16827DGG,118 is available at Aetrix Electronics and suitable for memory subsystems, FPGA I/O expansion, industrial backplane interfaces, and automated test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74ALVT16827DGG,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 logic, analog, and MOSFET solutions with focus on efficiency, reliability, and miniaturization for industrial, automotive, and consumer markets.

The 74ALVT series targets high-speed, low-voltage bus interface applications where BiCMOS performance meets stringent industrial temperature and ESD requirements-designed specifically for memory, FPGA, and backplane signal integrity.

FAQ

What is the maximum clock frequency supported by the 74ALVT16827DGG,118?

The device does not operate on a clock; it is an asynchronous buffer. Its usable frequency depends on propagation delay and system timing margins. With tPLH/tPHL ≤ 2.3 ns at 3.3 V, it supports reliable operation in 200+ MHz bus systems when combined with proper trace length matching and termination.

Can the 74ALVT16827DGG,118 drive a 5 V bus directly?

No-it cannot drive a 5 V bus, as its outputs are rail-to-rail (VOH ≤ VCC − 0.2 V). However, its inputs tolerate up to 5.5 V regardless of VCC, allowing safe reception of 5 V signals without external level shifters or clamps.

How does bus hold function impact PCB layout?

Bus hold eliminates the need for external 10–100 kΩ pull-up/down resistors on unused inputs, reducing component count, saving board space, and removing resistor-induced timing skew. Layout remains unchanged except for omission of those resistors.

Is the 74ALVT16827DGG,118 suitable for hot-swap applications?

Yes-its IOFF circuitry guarantees < ±100 μA leakage when VCC = 0 V, preventing backdrive into powered sections. Combined with overvoltage-tolerant inputs and latch-up immunity (>500 mA), it meets key requirements for controlled insertion/removal in live backplanes.