Nexperia USA Inc. 74ALVCH16823DGG,11

Overview

74ALVCH16823DGG,11 from Nexperia is an 18-bit edge-triggered D-type flip-flop with dual 9-bit sections, 3-state outputs, active-LOW master reset (nMR), clock enable (nCE), and output enable (nOE) - designed for high-speed bus interface applications in industrial control and data acquisition systems. 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.

For engineers reviewing the 74ALVCH16823DGG,11 datasheet, 74ALVCH16823DGG,11 pinout, 74ALVCH16823DGG,11 application, or 74ALVCH16823DGG,11 equivalent, this device supports precise timing-critical latching in multi-byte parallel buses, requires validation of tpd ≤ 3.7 ns (VCC = 3.0–3.6 V), and must be evaluated for nOE/nMR timing margins in hot-swap or power-gated subsystems.

Technical Context

The device implements two independent 9-bit latch sections, each with dedicated nCP, nCE, nMR, and nOE controls - enabling selective clock gating and asynchronous reset per section. Its bushold circuitry maintains valid logic levels on floating data inputs without external components, reducing BOM count and board space.

All 18 outputs are 3-state capable with separate enable control per section; output transitions follow strict set-up/hold timing relative to nCP (tsu = 1.5 ns, th = 0.5 ns at VCC = 3.3 V), and propagation delay is specified down to 2.5 ns typical at 3.3 V. The architecture supports simultaneous load-and-read operation only when nCE is LOW and nOE is LOW.

Key Specifications

Pinout & Package

TSSOP56 plastic thin shrink small outline package (SOT364-1); 56-pin, 6.1 mm body width, 0.5 mm pitch, 1.2 mm max height - optimized for high-density PCB layouts with low inductance via multiple VCC/GND pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74ALVTH16835DGGR and 74LVC16374APAG, the 74ALVCH16823DGG,11 uniquely combines 18-bit width, bushold, and 1.2–3.6 V operation - making it the only drop-in solution for mixed-voltage industrial backplanes requiring floating-input robustness without added passives.

Availability

74ALVCH16823DGG,11 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automated test equipment, medical imaging data acquisition, and automated optical inspection systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74ALVCH16823DGG,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 essential efficiency technologies - delivering high-performance logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74ALVCH16823 belongs to Nexperia's advanced ALVCH logic family, engineered specifically for low-voltage, high-speed bus interface applications where signal integrity, power efficiency, and robustness against floating inputs are critical.

FAQ

What is the maximum clock frequency supported by the 74ALVCH16823DGG,11?

The device supports up to 350 MHz maximum clock frequency (fmax) at VCC = 3.3 V under recommended operating conditions with 50 pF load. At 2.5 V, fmax drops to 300 MHz, and at 1.8 V, it is rated for 250 MHz. These values assume proper termination, clean power, and adherence to tsu/th timing margins.

Does the 74ALVCH16823DGG,11 require external pull-up resistors on unused data inputs?

No. All 18 data inputs (1D0–1D8 and 2D0–2D8) integrate bushold circuitry that actively maintains the last-valid logic state without external components. This eliminates the need for pull-up or pull-down resistors, reducing BOM cost and PCB area while preventing undefined states during power-up or signal float.

How does the dual-section architecture improve system-level timing control?

Each 9-bit section has independent nCP, nCE, nMR, and nOE signals - enabling staggered clocking, isolated reset, and selective output enable. This allows one section to latch new data while the other holds previous data, supporting pipelined operations in test equipment or multi-channel data acquisition without inter-section timing coupling.

Can the 74ALVCH16823DGG,11 be used in automotive applications?

No. The 74ALVCH16823DGG,11 is not automotive-qualified. It is specified for industrial temperature range (−40 °C to +85 °C) and lacks AEC-Q100 qualification, automotive-grade reliability testing, or guaranteed operation under automotive transient conditions. Use only in non-safety-critical industrial or commercial systems.