Nexperia USA Inc. 74ALVC16835ADGG:11

Overview

74ALVC16835ADGG:11 from Nexperia is an 18-bit registered bus driver with 3-state outputs, designed for high-speed data buffering and latching in memory and bus interface applications. It features active-low latch enable (LE), clock (CP), and output enable (OE) inputs; operates from 1.2 V to 3.6 V; delivers ±24 mA output drive at 3.0 V; and uses a flow-through TSSOP56 pinout for minimized signal skew. It is used in industrial control backplanes and high-density FPGA I/O expansion.

For engineers reviewing the 74ALVC16835ADGG:11 datasheet, 74ALVC16835ADGG:11 pinout, 74ALVC16835ADGG:11 application, or 74ALVC16835ADGG:11 equivalent, key selection criteria include propagation delay (as low as 1.0 ns at 3.3 V), wide supply range compatibility, multibyte timing synchronization, and robust 3-state control independent of latch state.

Technical Context

This device implements dual-mode operation: transparent mode when LE is LOW (A→Y path enabled), and registered mode when LE is HIGH and CP transitions LOW-to-HIGH (data latched into flip-flops). OE controls output impedance independently-asserting OE HIGH forces all Y outputs into high-impedance OFF-state without affecting internal latch state.

Its architecture supports simultaneous 18-bit data registration with guaranteed setup/hold times (e.g., 0.9 ns setup for An to CP at 3.3 V) and sub-5 ns propagation delays across voltage ranges. The TSSOP56 package integrates nine GND and four VCC pins to suppress ground bounce and supply noise in high-speed parallel bus environments.

Key Specifications

Pinout & Package

The 74ALVC16835ADGG:11 is housed in a 56-pin TSSOP package (SOT364-1) with 6.1 mm body width, optimized for high-density routing and thermal performance in industrial PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74ALVCH16835DGGR, the 74ALVC16835ADGG:11 offers broader low-voltage support (1.2 V) and tighter JEDEC-8-5 compliance, while the 74LVC16835ADGG sacrifices voltage flexibility for lower unit cost in fixed 3.3 V systems.

Availability

74ALVC16835ADGG:11 is available at Aetrix Electronics and suitable for industrial backplane interfaces, FPGA I/O expansion, test equipment data acquisition, and programmable logic controller I/O modules requiring stable component supply across extended temperature and voltage ranges.

Supply support for 74ALVC16835ADGG: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 for industrial, automotive, and consumer markets.

The 74ALVC family targets high-speed, low-power, multi-bit interface applications requiring wide supply voltage compatibility and robust noise immunity in space-constrained PCBs.

FAQ

What is the minimum recommended pull-up resistor value for OE when tied to VCC?

The datasheet specifies that OE should be tied to VCC through a pull-up resistor whose minimum value is determined by the current-sinking capability of the driver. While no exact resistance is given, design practice uses 10 kΩ for 3.3 V systems to ensure fast disable timing (<4.4 ns tdis) while limiting quiescent current to <0.33 mA.

Can the 74ALVC16835ADGG:11 operate reliably at 1.2 V with full timing specifications?

Yes-the device is fully characterized down to 1.2 V per Table 5, with static and dynamic parameters including VIH/VIL thresholds, propagation delay (4.2 ns max at 1.2 V), and output drive validated across the entire −40 °C to +85 °C range at this voltage.

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

When LE is HIGH, the device enters registered mode: data present at A inputs is captured only on the LOW-to-HIGH transition of CP. When LE is LOW, the device operates transparently-Y outputs follow A inputs regardless of CP state, enabling bypass functionality without clock dependency.

Are all 18 Y outputs guaranteed to switch simultaneously under worst-case conditions?

No-propagation delay variation (skew) between Y outputs is specified at ≤0.5 ns across all channels under identical load and supply conditions, ensuring deterministic timing alignment critical for parallel bus integrity at high speeds.