Nexperia USA Inc. 74ALVC16835ADGG,11

Overview

74ALVC16835ADGG,11 from Nexperia is an 18-bit registered 3-state driver IC with transparent/latched data flow control via active-low latch enable (LE), active-low output enable (OE), and clock (CP) inputs. It operates from 1.2 V to 3.6 V, delivers ±24 mA output drive at 3.0 V, and features multibyte flow-through pinout in a TSSOP56 package. It is used in high-density bus interface applications requiring synchronized data registration and controlled output isolation.

For engineers reviewing the 74ALVC16835ADGG,11 datasheet, 74ALVC16835ADGG,11 pinout, 74ALVC16835ADGG,11 application, or 74ALVC16835ADGG,11 equivalent, key selection criteria include supply voltage flexibility (1.2–3.6 V), propagation delay ≤4.5 ns at 3.3 V, 3-state timing (enable/disable <4.5 ns), latch synchronization behavior, and JEDEC-compliant I/O levels for mixed-voltage system interfacing.

Technical Context

This device implements dual-mode operation: when LE is LOW, A-to-Y path is transparent; when LE is HIGH, data is latched on the LOW-to-HIGH CP transition. OE independently controls 3-state output enable/disable without affecting latch state. The architecture supports synchronous registration and asynchronous output gating-critical for bus arbitration and data staging in memory interfaces and FPGA I/O expansion.

It integrates nine ground and four VCC pins to minimize ground bounce and noise, supports 50 Ω transmission line driving at 85 °C, and includes input diodes for robustness against overdriven signals. Compliance with JESD8-5 (2.3–2.7 V) and JESD8B/JESD36 (2.7–3.6 V) ensures interoperability with TTL and low-voltage CMOS logic families.

Key Specifications

Pinout & Package

TSSOP56 (SOT364-1) package: plastic thin shrink small outline, 56 leads, 6.1 mm body width, 0.5 mm pitch, 1.2 mm max height. Features multiple VCC (pins 7, 22, 35, 50) and GND (pins 4, 11, 18, 25, 32, 39, 46, 53, 56) pins for low-inductance power delivery and noise suppression.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74ALVCH16835DGGR and 74LVC16835ADGG,11, the 74ALVC16835ADGG,11 offers superior low-voltage operation (down to 1.2 V), tighter propagation delay consistency, and lower ICC-making it optimal for mixed-voltage, power-constrained, or high-timing-margin designs.

Availability

74ALVC16835ADGG,11 is available at Aetrix Electronics and suitable for memory interface buffering, FPGA I/O expansion, backplane data staging, and test equipment signal conditioning requiring stable component supply across industrial temperature ranges (−40 °C to +85 °C).

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 specializing in high-volume, high-reliability logic, analog, and discrete components, with leadership in advanced packaging and automotive-qualified solutions.

The 74ALVC logic family targets high-speed, low-power, mixed-voltage digital interfacing-designed specifically for bus buffering, data staging, and I/O expansion in industrial, computing, and communications equipment.

FAQ

What is the minimum recommended pull-up resistor value for OE during power-up?

The datasheet specifies that OE should be tied to VCC through a pull-up resistor to ensure high-impedance outputs at power-up. The minimum resistor value depends on the driver's current-sinking capability, which is rated at ±24 mA. For safe margin, a 10 kΩ resistor is commonly used-ensuring OE remains above VIH (≥2.0 V at 3.3 V) while limiting current to <0.33 mA.

Can CP and LE be driven from the same clock source?

Yes, but only if LE is asserted HIGH before CP transitions, and the LE pulse width meets the minimum 2.0 ns requirement. Driving both from the same source risks violating setup/hold times (tsu = 1.5 ns, th = 0.3 ns for An→LE), potentially causing metastability or incorrect latching. Dedicated LE control is recommended for deterministic operation.

Does the device support hot insertion or live bus swapping?

No. The 74ALVC16835ADGG,11 lacks explicit hot-swap protection features such as power-on reset, Ioff (power-off protection), or bus-hold. Its absolute maximum ratings allow VCC = −0.5 V, but IOZ leakage (≤10 μA) does not guarantee safe operation during partial power sequencing. External protection circuitry is required for live insertion scenarios.

How does the MULTIBYTE flow-through pinout improve signal integrity?

The pinout arranges A1–A18 and Y1–Y18 in sequential, mirrored banks (e.g., A1/A2 near Y1/Y2), minimizing trace length asymmetry and inter-channel coupling. This reduces skew (<0.5 ns typical between channels) and crosstalk, enabling clean 18-bit parallel transfers at >200 MHz without differential routing or complex layout compensation.