Nexperia USA Inc. 74ALVCH16827DGGY

Overview

74ALVCH16827DGGY from Nexperia is a 20-bit non-inverting 3-state buffer/line driver with dual 10-bit sections, bus hold circuitry, ±24 mA output drive at 3.0 V, and operation across 1.2 V to 3.6 V supply. It enables bidirectional bus isolation in high-density memory and data-path interfaces, supporting 50 Ω transmission line driving at 85 °C.

For engineers reviewing the 74ALVCH16827DGGY datasheet, 74ALVCH16827DGGY pinout, 74ALVCH16827DGGY application, or 74ALVCH16827DGGY equivalent, key selection criteria include active bus hold for floating-input immunity, independent dual OE control per 10-bit section, TSSOP56 package thermal and noise performance, and JEDEC-compliant 2.3–3.6 V logic interfacing.

Technical Context

The device implements two electrically isolated 10-bit non-inverting buffer sections, each requiring both OE inputs (e.g., 1OE0 and 1OE1) to be LOW for output enable-any HIGH disables that section into high-impedance. Bus hold circuitry actively maintains unused inputs at valid logic levels without external resistors.

It supports mixed-voltage system interfacing: TTL-compatible input thresholds (VIH ≥ 2.0 V at VCC = 3.3 V), low-noise multi-VCC/GND pin layout, and dynamic performance up to 3.4 ns propagation delay (VCC = 3.0–3.6 V, CL = 50 pF). Static drive strength is specified at ±24 mA sink/source under defined VCC and temperature conditions.

Key Specifications

Pinout & Package

TSSOP56 (SOT364-1) package: 56-pin plastic thin shrink small outline, 6.1 mm body width, 0.5 mm pitch, 1.2 mm max height - optimized for thermal dissipation and PCB space efficiency in high-pin-count logic applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 20-bit non-inverting 3-state buffer applications.

Compared with SN74ALVCH16827DGGR, the 74ALVCH16827DGGY offers identical functionality with Nexperia's qualification and supply chain; versus 74LVC162244ADGG, it provides 4 extra bits, guaranteed bus hold, and tighter propagation delay specs - making it suitable for drop-in replacement where full 20-bit integrity and floating-input immunity are mandatory.

Availability

74ALVCH16827DGGY is available at Aetrix Electronics and suitable for industrial backplane buses, memory subsystem interfaces, automated test fixture control, and high-density signal routing requiring stable component supply across extended temperature ranges.

Supply support for 74ALVCH16827DGGY 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 industrial, automotive, and consumer markets with scalable manufacturing and rigorous quality systems.

The 74ALVCH16827 belongs to Nexperia's advanced low-voltage CMOS logic family, designed specifically for noise-sensitive, high-speed parallel bus applications demanding wide supply range, bus hold, and robust ESD performance.

FAQ

Does the 74ALVCH16827DGGY require external pull-up or pull-down resistors on its inputs?

No. The device integrates active bus hold circuitry that maintains unused or floating inputs at valid logic levels. This eliminates the need for external pull resistors, reducing BOM count and PCB area while improving reliability in systems with undriven control lines during power-up or configuration phases.

What is the minimum supply voltage at which the 74ALVCH16827DGGY guarantees full 20-bit operation?

The device is fully specified down to 1.2 V supply voltage, with static and dynamic parameters validated across −40 °C to +85 °C. At 1.2 V, propagation delay increases to 4.1 ns (max), and output drive reduces, but all 20 bits remain functional and compliant with JEDEC JESD8-5 for 1.2–1.98 V operation.

How does the dual output enable architecture improve system-level bus management?

Each 10-bit section has two independent active-LOW OE inputs (e.g., 1OE0 and 1OE1); both must be LOW to enable outputs. This allows fail-safe gating - if one OE signal fails HIGH due to noise or fault, the entire 10-bit section goes high-Z, preventing unintended bus contention or data corruption in safety-critical interfaces.

Can the 74ALVCH16827DGGY drive 50 Ω transmission lines at 85 °C without signal degradation?

Yes. The datasheet explicitly specifies "output drive capability 50 Ω transmission lines at 85 °C" with ±24 mA drive at 3.0 V. This rating accounts for worst-case junction temperature and ensures clean edge fidelity and minimal overshoot/undershoot under full-load, high-temperature conditions typical in enclosed industrial enclosures.