Nexperia USA Inc. 74ALVC162835ADGG:1

Overview

74ALVC162835ADGG:1 from Nexperia is an 18-bit registered bus driver with integrated 30 Ω series termination resistors, 3-state outputs, and dual control via latch enable (LE) and clock (CP). It operates across 1.2 V to 3.6 V supply, delivers ±12 mA drive at 3.0 V, and supports transparent or edge-triggered latching. Used in high-speed parallel bus interfaces requiring impedance-matched signal integrity, such as memory expansion and FPGA I/O bridging.

For engineers reviewing the 74ALVC162835ADGG:1 datasheet, 74ALVC162835ADGG:1 pinout, 74ALVC162835ADGG:1 application, or 74ALVC162835ADGG:1 equivalent, key selection criteria include its 30 Ω on-die termination, TSSOP56 package with 9 ground pins for noise suppression, 2.9 ns typical propagation delay at 3.3 V, and compatibility with both TTL and CMOS logic families.

Technical Context

The device implements a dual-mode data path: when LE is HIGH, A-to-Y flow is transparent; when LE is LOW, data is latched on the CP rising edge. OE controls 3-state output independently of latch state. Its architecture includes diode clamps on all inputs and low-inductance multiple VCC/GND pins to minimize ground bounce.

Each output integrates matched 30 Ω series resistors in both HIGH and LOW states-enabling direct drive of 50 Ω transmission lines without external components. Static input thresholds scale with VCC (VIH = 2.0 V min at 2.7–3.6 V), and dynamic performance is specified up to 240 MHz per buffer at 3.3 V.

Key Specifications

Pinout & Package

TSSOP56 package (SOT364-1), 6.1 mm body width, 56-pin thin shrink small outline with 9 dedicated GND pins and 4 VCC pins for low-noise power distribution.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 18-bit registered driver applications.

Compared with SN74ALVCH162835DGGR and 74LVC162244APAG, the 74ALVC162835ADGG:1 uniquely combines 18-bit registered operation, 30 Ω on-die termination, and industrial temperature range in a single TSSOP56 package-reducing component count and layout complexity where signal integrity and timing control are critical.

Availability

74ALVC162835ADGG:1 is available at Aetrix Electronics and suitable for memory expansion interfaces, FPGA I/O bridging, industrial PLC backplanes, and high-speed test equipment buses requiring stable component supply and long-term industrial lifecycle support.

Supply support for 74ALVC162835ADGG:1 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 for automotive, industrial, and consumer markets.

The ALVC logic family targets high-speed, low-power, mixed-voltage parallel bus applications-designed specifically for signal integrity, noise immunity, and seamless integration into modern embedded and computing platforms.

FAQ

What is the purpose of the integrated 30 Ω resistors?

The 30 Ω series resistors are placed in both HIGH and LOW output stages to provide source termination for 50 Ω transmission lines. This reduces signal reflections and overshoot without requiring external components, directly supporting clean edge rates and stable operation at 240 MHz in clocked mode.

How does the latch enable (LE) interact with the clock (CP) input?

When LE is HIGH, data flows transparently from A to Y regardless of CP state. When LE is LOW, the A-input is latched on the LOW-to-HIGH transition of CP. CP has no effect on output behavior when LE is HIGH, and OE remains fully independent of both LE and CP.

Can this device operate reliably at 1.2 V supply?

Yes-the 74ALVC162835ADGG:1 is fully specified down to 1.2 V, with static parameters (VIH/VIL) and dynamic performance (tpd, fmax) validated across the full 1.2 V–3.6 V range. At 1.2 V, typical propagation delay is 5.0 ns and maximum frequency is 150 MHz per buffer.

Why are there nine GND pins in the TSSOP56 package?

The nine GND pins minimize ground inductance and distribute return current across the package, significantly reducing ground bounce during simultaneous switching of all 18 outputs. This layout is essential for maintaining signal integrity and noise margin in high-speed parallel bus applications.