Nexperia USA Inc. 74ALVCH16823DGGS

Overview

74ALVCH16823DGGS from Nexperia is an 18-bit edge-triggered D-type flip-flop with independent 9-bit sections, 3-state bus-compatible outputs, active-LOW master reset (nMR), clock enable (nCE), and output enable (nOE). It operates from 1.2 V to 3.6 V, delivers ±24 mA drive at 3.0 V, and features bushold inputs eliminating external pull-ups. Used in high-density data buffering and address/data latching in industrial control backplanes.

For engineers reviewing the 74ALVCH16823DGGS datasheet, 74ALVCH16823DGGS pinout, 74ALVCH16823DGGS application, or 74ALVCH16823DGGS equivalent, this page provides verified functional architecture, TSSOP56 package mapping, timing parameters across voltage ranges (1.2–3.6 V), bus hold behavior, and real-world interface constraints for synchronous bus isolation and multi-byte latch coordination.

Technical Context

The device implements two independent 9-bit D-flip-flop banks, each with dedicated nCP (rising-edge clock), nCE (active-LOW clock enable), nMR (asynchronous active-LOW reset), and nOE (active-LOW 3-state control). Clock enable disables the clock buffer without affecting stored state, while master reset forces all Q outputs LOW regardless of clock phase.

Bushold circuitry maintains valid logic levels on floating data inputs without external resistors, supporting hot-swap and partial-bus-enable scenarios. Output drive supports direct termination into 50 Ω transmission lines at 85 °C, and low-inductance multiple VCC/GND pins minimize ground bounce in high-speed parallel interfaces.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 18-bit bus-interface latch applications.

Compared with SN74ALVTH16823DGGR and 74LVC16373ADGG, the 74ALVCH16823DGGS uniquely combines edge-triggered dual-section operation, bushold, and 1.2 V compatibility-making it optimal for low-voltage, noise-sensitive, and space-constrained industrial bus interfaces requiring deterministic timing and minimal external components.

Availability

74ALVCH16823DGGS is available at Aetrix Electronics and suitable for industrial backplane buffering, memory address latching, and high-density bus isolation requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across voltage grades.

Supply support for 74ALVCH16823DGGS 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 computing markets.

The 74ALVCH16823 belongs to Nexperia's advanced low-voltage CMOS logic family, designed specifically for robust, low-noise, multi-bit data interfacing in space-constrained industrial control and instrumentation systems.

FAQ

What is the minimum supply voltage for guaranteed operation?

The 74ALVCH16823DGGS is fully specified down to 1.2 V, with static and dynamic parameters validated across −40 °C to +85 °C at this voltage. At 1.2 V, propagation delay increases to 10.6 ns (typ), and maximum frequency drops to 125 MHz, but all logic functions-including bushold, reset, and 3-state control-remain operational per datasheet Table 5 and Table 9.

How does bushold behave when V_CC is below 1.8 V?

Bushold remains functional at V_CC = 1.2 V, with IBHL = 45 μA (min) and IBHH = −45 μA (min) per input. The circuit actively holds floating inputs near V_CC/2, preventing metastability. No external components are needed, and bus hold strength scales linearly with supply voltage per datasheet Table 6.

Can both 9-bit sections be clocked simultaneously using a single clock source?

Yes-1CP and 2CP are electrically isolated but may be tied together externally. When driven by the same rising-edge clock, both sections update simultaneously. However, independent nCE and nMR allow selective enabling or resetting of each section without affecting the other, enabling flexible multi-stage pipeline control.

Is the TSSOP56 package RoHS and REACH compliant?

Yes-the 74ALVCH16823DGGS in SOT364-1 (TSSOP56) packaging meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with lead-free terminations and halogen-free molding compound. Compliance documentation is available via Nexperia's product change notifications and material declarations portal.