Nexperia USA Inc. 74ALVCH16827DGG,11

Overview

74ALVCH16827DGG,11 from Nexperia is a 20-bit non-inverting 3-state buffer/line driver in TSSOP56 package, featuring dual 10-bit sections with independent active-LOW output enables (1OE0/1OE1 and 2OE0/2OE1), bus hold circuitry eliminating external pull resistors, and ±24 mA drive at 3.0 V. It operates from 1.2 V to 3.6 V and supports high-speed data bus interfacing in industrial control backplanes.

For engineers reviewing the 74ALVCH16827DGG,11 datasheet, 74ALVCH16827DGG,11 pinout, 74ALVCH16827DGG,11 application, or 74ALVCH16827DGG,11 equivalent, key selection criteria include dual-section 3-state control timing (enable/disable times ≤4.7 ns), bus hold current (±75–175 μA), voltage compatibility across 1.2–3.6 V rails, and TSSOP56 thermal/power dissipation limits (Ptot = 500 mW).

Technical Context

The device implements two independent 10-bit non-inverting buffers, each requiring both OE inputs low to enable outputs; either OE high forces that section into high-impedance state. Bus hold circuitry actively maintains unused inputs at valid logic levels without external components.

It supports mixed-voltage interfacing: TTL-compatible input thresholds (VIH ≥2.0 V at VCC = 3.3 V) and CMOS-level output swing (VOH ≥ VCC − 0.28 V, VOL ≤ 0.55 V at IO = ±24 mA). Propagation delay is as low as 1.0 ns (typical) with CL = 30–50 pF loads.

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. Designed for fine-pitch PCB routing and thermal performance in dense layouts.

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 74ALVCH16827DGG,11 provides integrated bus hold-reducing BOM count and failure modes-while offering higher absolute max supply (4.6 V) and ICC (100 mA). Against 74LVC16244ADGG,118, it delivers 25% more data lanes and finer-grained 10-bit section control, critical for complex bus partitioning.

Availability

74ALVCH16827DGG,11 is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory expansion modules, telecom line card control, and test equipment signal routing requiring stable component supply across extended temperature ranges and mixed-voltage systems.

Supply support for 74ALVCH16827DGG,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 headquartered in Nijmegen, Netherlands, specializing in high-volume, high-reliability logic, analog, and discrete components for industrial, automotive, and computing markets.

The 74ALVCH16827 belongs to Nexperia's ALVCH advanced low-voltage CMOS logic family, designed specifically for high-speed, low-power, mixed-voltage bus interfacing in space-constrained industrial and communications equipment.

FAQ

What is the function of the dual output enable (OE) inputs per 10-bit section?

Each 10-bit section requires both OE inputs (e.g., 1OE0 and 1OE1) to be LOW to enable its outputs; if either is HIGH, all 10 outputs go high-impedance. This dual-input AND logic prevents accidental bus activation due to noise or partial enable assertion, enhancing system robustness in noisy industrial environments.

Does the bus hold feature affect propagation delay or power consumption?

Bus hold circuitry adds ≤150 μA typical additional supply current (ΔICC) when inputs float near switching threshold, but introduces no measurable delay penalty-propagation delay specs (1.0–3.4 ns) include bus hold active. It eliminates static power from external pull resistors, reducing net system power in un-driven states.

Can 74ALVCH16827DGG,11 operate reliably at 1.2 V supply?

Yes-data sheet specifies full functionality down to 1.2 V, with VIH/VIL thresholds scaling proportionally (e.g., VIH = 0.65 × VCC min). At 1.2 V, drive strength reduces to ±8 mA, and propagation delay increases to ~4.1 ns (max), but timing remains valid for ≤50 MHz bus operation with light loads.

How many ground and power pins does the TSSOP56 package have, and why?

The TSSOP56 package has eight GND pins (4, 11, 18, 25, 32, 39, 46, 53) and four VCC pins (7, 22, 35, 50). This distribution minimizes ground bounce and supply inductance during simultaneous switching of all 20 outputs, maintaining signal integrity in high-speed parallel bus applications.