Nexperia USA Inc. 74ALVT162827DL,512

Overview

74ALVT162827DL,512 from Nexperia is a 20-bit non-inverting buffer/line driver with integrated 30 Ω termination resistors, dual 3-state enable control (OE1/OE2), bus-hold inputs, and BiCMOS output drive. It operates from 2.3 V to 3.6 V, supports 5.5 V-tolerant inputs, and is specified for −40 °C to +85 °C. Used in high-speed parallel bus interfaces such as memory expansion or backplane drivers where signal integrity and reduced external component count are critical.

For engineers reviewing the 74ALVT162827DL,512 datasheet, 74ALVT162827DL,512 pinout, 74ALVT162827DL,512 application, or 74ALVT162827DL,512 equivalent, key selection considerations include its dual 10-bit 3-state architecture, on-die 30 Ω series termination, bus-hold input retention, IOFF partial power-down capability, and TSSOP56 (SOT364-1) package compatibility with high-density PCB layouts.

Technical Context

This device implements two independent 10-bit non-inverting buffers, each controlled by dedicated active-low output enables (1OE0/1OE1 and 2OE0/2OE1). Its BiCMOS output stage delivers TTL-compatible drive strength while maintaining low static current and fast propagation delays (as low as 1.0 ns tPLH at 3.3 V).

The integrated 30 Ω series termination resistors per output reduce signal reflections on transmission lines, eliminating need for discrete resistors. Bus-hold circuitry maintains valid logic states on unused inputs without external pull-ups, and IOFF protection prevents current flow when VCC = 0 V - enabling live-insertion and hot-swap support.

Key Specifications

Pinout & Package

TSSOP56 (SOT364-1) plastic thin shrink small outline package: 56-pin, 6.1 mm body width, 0.5 mm lead pitch, 1.2 mm max height. Designed for fine-pitch surface-mount assembly and thermal performance in dense logic applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 20-bit buffer/line driver applications.

Compared with SN74ALVTH162827DGGR, the 74ALVT162827DL,512 offers finer-grained 3-state control (four enables vs. two), improving bus segmentation flexibility; compared with 74LVC16244ADGG, it delivers superior signal integrity out-of-box via integrated termination and bus-hold - reducing design validation effort and PCB area.

Availability

74ALVT162827DL,512 is available at Aetrix Electronics and suitable for memory expansion interfaces, backplane data buses, high-speed test equipment, and industrial PLC I/O systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for 74ALVT162827DL,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 leading semiconductor manufacturer specializing in high-performance logic, analog, and discrete components, with core expertise in automotive-qualified and industrial-grade standard products.

The 74ALVT family targets high-speed, low-voltage bus interface applications requiring robust signal integrity, mixed-voltage interoperability, and reliability in demanding industrial environments.

FAQ

Does the 74ALVT162827DL,512 support hot-swap operation?

Yes - its IOFF circuitry blocks current flow when VCC = 0 V, and bus-hold inputs retain logic states during power sequencing. Combined with 5.5 V-tolerant inputs, this enables safe insertion into live 3.3 V or 5 V backplanes without damaging upstream drivers or causing bus contention.

Can the 30 Ω termination resistors be bypassed for non-terminated loads?

No - the 30 Ω resistors are monolithically integrated in series with each output and cannot be disabled or shorted. For non-terminated applications, use a non-terminated alternative like 74LVC16244ADGG, as removing termination degrades signal integrity on longer traces.

What is the maximum clock/data rate supported by this device?

Based on tPLH/tPHL ≤ 3.3 ns (max) at 3.3 V, the device supports reliable operation up to ~300 Mbps (NRZ) on properly terminated 50 Ω traces. System-level timing must account for board trace delays and load capacitance, but the IC itself meets setup/hold margins for 100 MHz parallel buses with 3 ns skew budgets.

How does bus-hold current affect power consumption in high-impedance states?

Bus-hold draws ±130 μA per input at 3 V when holding a logic state - negligible versus dynamic switching current. Total worst-case hold current for all 20 inputs is <2.6 mA, which remains within ICC limits (0.1 mA typical) and does not require additional thermal derating in industrial ambient conditions.