Nexperia USA Inc. 74ALVT16827DL,512

Overview

74ALVT16827DL,512 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 inputs eliminating external pull-ups, and overvoltage-tolerant inputs up to 5.5 V. Used in high-speed digital backplanes and memory interface expansion.

For engineers reviewing the 74ALVT16827DL,512 datasheet, 74ALVT16827DL,512 pinout, 74ALVT16827DL,512 application, or 74ALVT16827DL,512 equivalent, key selection criteria include propagation delay (≤2.2 ns at 3.3 V), 3-state enable timing (tPZH ≤ 4.8 ns), bus-hold current (IBHL = 75–130 μA), and IOFF power-down leakage (<±100 μA).

Technical Context

The device implements BiCMOS logic for high-speed operation and strong drive capability while maintaining TTL-level compatibility. Its dual 10-bit architecture allows independent control of two data groups via separate OE pins, enabling flexible bus partitioning and isolation.

Bus-hold circuitry actively maintains input logic states without external resistors, reducing board space and signal integrity risk. The IOFF feature ensures minimal leakage during partial power-down, supporting hot-swap and low-power system states.

Key Specifications

Pinout & Package

TSSOP56 (SOT364-1) package: plastic thin shrink small outline, 56 leads, 6.1 mm body width, 0.5 mm lead pitch, 1.2 mm max height - optimized for high-density PCB layouts and automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74ALVTH16827GR and 74LVC16244APAG, the 74ALVT16827DL,512 uniquely combines 20-bit width, 5.5 V overvoltage tolerance, and integrated bus-hold - eliminating four external components per unused input and enabling direct 5 V–3.3 V bridging without redesign.

Availability

74ALVT16827DL,512 is available at Aetrix Electronics and suitable for industrial backplane buffering, memory interface expansion, legacy system interfacing, and high-density FPGA I/O expansion requiring stable component supply and long-term industrial lifecycle support.

Supply support for 74ALVT16827DL,512 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 sustainability.

The 74ALVT series targets high-speed, low-voltage digital interfacing applications where BiCMOS performance, bus-hold integration, and overvoltage resilience are critical - especially in industrial and communications infrastructure.

FAQ

What is the maximum clock frequency supported by the 74ALVT16827DL,512?

The device does not operate on a clock; it is an asynchronous buffer. Its 0.7 ns typical tPLH at 3.3 V enables reliable use in systems with data rates exceeding 400 MHz, provided board layout controls skew and reflections. Maximum usable frequency depends on load capacitance, trace length, and termination - verified up to 200 MHz with 30 pF loads in reference designs.

Can the 74ALVT16827DL,512 drive a 5 V bus while powered from 3.3 V?

Yes - its inputs tolerate up to 5.5 V regardless of VCC (2.3–3.6 V), allowing direct connection to 5 V buses. Outputs swing rail-to-rail (0 V to VCC), so they deliver 3.3 V logic levels; external pull-ups are unnecessary due to bus-hold, but level translation is required if receiving devices need true 5 V HIGH recognition.

How does the bus-hold feature affect power consumption?

Bus-hold draws 75–130 μA (LOW) or −75–−140 μA (HIGH) per input at 3 V - adding ~1.5 mA worst-case for all 20 inputs. This is offset by eliminating 20 × 10 kΩ pull-up resistors (which would draw ~10 mA total at 5 V). Net system power is reduced, especially in standby states with floating inputs.

Is the 74ALVT16827DL,512 suitable for automotive applications?

No - this device is not AEC-Q100 qualified and lacks automotive-grade screening, temperature range (−40 °C to +85 °C is industrial, not automotive), or extended reliability testing. Nexperia explicitly states non-automotive qualification in its legal disclaimers; use only in industrial, computing, or communications equipment.