NXP Semiconductors 74ALVCH16827DGGS

Overview

74ALVCH16827DGGS 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 from −40 °C to +85 °C. It supports 1.2 V to 3.6 V supply voltage and interfaces directly with TTL levels (2.7 V–3.6 V), enabling robust data bus isolation in high-density PCBs.

For engineers reviewing the 74ALVCH16827DGGS datasheet, 74ALVCH16827DGGS pinout, 74ALVCH16827DGGS application, or 74ALVCH16827DGGS equivalent, this device serves as a low-noise, high-drive bus interface for memory expansion, FPGA I/O bridging, and industrial control backplanes where floating input immunity and precise 3-state timing are critical.

Technical Context

The 74ALVCH16827DGGS implements two independent 10-bit non-inverting buffer sections, each requiring both OE inputs (e.g., 1OE0 and 1OE1) to be LOW for output enable-ensuring fail-safe high-impedance behavior on partial enable. Its bus hold circuitry actively maintains unused inputs at valid logic levels without external resistors, eliminating floating node risks.

Designed for noise-sensitive environments, it features low-inductance multiple VCC and GND pins, supports 50 Ω transmission line driving at 85 °C, and complies with JEDEC JESD8B/JESD36 (2.7–3.6 V) and JESD8-5 (2.3–2.7 V) standards. Propagation delay is as low as 1.0 ns (typical) at VCC = 3.3 V.

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 routing and thermal dissipation in compact industrial PCBs.

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 74ALVCH16827DGGS shares identical functionality but differs in packaging format (tube vs. reel); versus 74LVC16244ADGG, it delivers 25% more data width, integrated bus hold, and tighter timing-making it superior for 20-bit industrial bus isolation where reliability and layout simplicity are prioritized.

Availability

74ALVCH16827DGGS is available at Aetrix Electronics and suitable for memory expansion interfaces, FPGA I/O bridging, industrial backplane buses, and ATE signal routing requiring stable component supply, long-lifecycle support, and guaranteed industrial temperature performance.

Supply support for 74ALVCH16827DGGS 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 specializing in high-performance, energy-efficient logic, analog, and discrete components, serving automotive, industrial, and consumer markets with scalable manufacturing and rigorous quality systems.

The 74ALVCH16827 belongs to Nexperia's advanced ALVCH logic family, designed specifically for high-speed, low-power, noise-immune parallel bus interfacing in space-constrained industrial and computing applications.

FAQ

What is the minimum supply voltage required for guaranteed operation of the 74ALVCH16827DGGS?

The device is fully specified down to 1.2 V per JEDEC JESD8-5 and JESD8B/JESD36 standards. At 1.2 V, static parameters including VIH/VIL thresholds, bus hold current, and output drive remain functional-though propagation delay increases to ≤ 4.1 ns (VCC = 2.3–2.7 V range). For maximum speed, use ≥2.3 V.

How does the dual-output-enable architecture prevent partial bus activation?

Each 10-bit section requires both OE inputs (e.g., 1OE0 AND 1OE1) to be LOW for output enable. If either is HIGH, all 10 outputs go high-impedance-eliminating risk of contention when only one OE signal is asserted. This architecture enforces atomic section control, critical for deterministic bus arbitration.

Can the 74ALVCH16827DGGS 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" under Features and Benefits. At VCC = 3.0 V, it delivers ±24 mA, ensuring adequate voltage swing (>2.0 V) into 50 Ω loads even at maximum operating temperature, verified by dynamic characteristics testing.

Is external decoupling required despite multiple VCC/GND pins?

Yes-while the eight GND and four VCC pins reduce inductance, localized 100 nF ceramic decoupling capacitors are still required near each VCC pin (per JEDEC guidelines). The multiple pins distribute current but do not replace high-frequency local bypassing needed to suppress switching transients.