Nexperia USA Inc. 74ALVT162827DGG:11

Overview

74ALVT162827DGG:11 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 across 2.3 V to 3.6 V supply rails, tolerates 5.5 V inputs, and supports high-speed signal integrity in parallel bus interfaces for industrial backplanes and memory subsystems.

For engineers reviewing the 74ALVT162827DGG:11 datasheet, 74ALVT162827DGG:11 pinout, 74ALVT162827DGG:11 application, or 74ALVT162827DGG:11 equivalent, key selection criteria include its dual 10-bit enable architecture, 30 Ω on-die termination, bus hold functionality eliminating external pull-ups, and guaranteed -40 °C to +85 °C operation with sub-3.5 ns propagation delay at 3.3 V.

Technical Context

This device implements a dual-section 10-bit buffer topology, where OE1 controls outputs Y0–Y9 of section 1 and OE2 controls Y0–Y9 of section 2. Each output includes a 30 Ω series resistor and IOFF circuitry enabling partial power-down mode when VCC = 0 V.

Bus hold circuitry maintains stable logic states on unused inputs without external components, while overvoltage-tolerant inputs (up to 5.5 V) allow direct interfacing with 5 V TTL buses even when powered from 2.5 V or 3.3 V supplies.

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.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74ALVTH162827DGGR and 74LVC16244ADGG, the 74ALVT162827DGG:11 uniquely combines industrial temperature range, bus hold, and on-die termination - making it the only option that eliminates both external resistors and pull-ups while guaranteeing robust operation in demanding embedded systems.

Availability

74ALVT162827DGG:11 is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory subsystem buffering, and telecom line card expansion requiring stable component supply, long-term lifecycle support, and guaranteed -40 °C to +85 °C performance.

Supply support for 74ALVT162827DGG:11 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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.

The 74ALVT family delivers advanced BiCMOS buffer drivers optimized for high-speed, low-power, mixed-voltage system interfacing - specifically targeting industrial control, communications infrastructure, and test equipment where signal integrity and thermal robustness are critical.

FAQ

What is the function of the bus hold feature?

The bus hold circuitry actively maintains the last valid logic state on any input pin that is left unconnected or unterminated, drawing ±75 μA to ±140 μA depending on voltage level. This eliminates the need for external pull-up or pull-down resistors, reduces BOM cost, prevents floating-node-induced noise or metastability, and improves reliability in high-density PCB layouts with many unused inputs.

Can 74ALVT162827DGG:11 interface directly with 5 V TTL logic?

Yes - all inputs are overvoltage tolerant up to 5.5 V regardless of VCC supply voltage (2.3 V to 3.6 V). This allows direct connection to 5 V TTL outputs without level shifters or clamping diodes, while maintaining full logic compatibility and avoiding signal degradation or damage risk.

How does the 30 Ω termination resistor improve signal integrity?

Each output integrates a precise 30 Ω series resistor matched to typical PCB trace impedance, reducing signal reflections at the driver end. This minimizes overshoot, undershoot, and ringing on parallel buses up to 300 MHz, eliminates the need for 20 discrete SMT termination resistors, and simplifies layout by enabling cleaner stub-free routing in backplane and memory interface applications.

What is the purpose of IOFF circuitry?

IOFF provides partial power-down protection by disabling output current flow when VCC = 0 V, limiting leakage to ±100 μA. This prevents back-driving of powered circuits during hot-swap events, protects unpowered modules in modular chassis, and ensures safe live insertion/removal in industrial backplanes and telecom line cards without disrupting system operation.