Nexperia USA Inc. 74ALVCH16600DGG:11

Overview

74ALVCH16600DGG:11 from Nexperia is an 18-bit universal bus transceiver with bidirectional A↔B data flow, bus hold inputs, and 3-state outputs, operating across 1.65 V to 3.6 V supply. It supports transparent/latched/clocked modes via dual control paths (OEAB/LEAB/CPAB/CEAB and OEBA/LEBA/CPBA/CEBA), features IOFF for partial power-down protection, and delivers ±24 mA drive at 3.0 V - used in high-density memory expansion and FPGA-to-ASIC interconnects.

For engineers reviewing the 74ALVCH16600DGG:11 datasheet, 74ALVCH16600DGG:11 pinout, 74ALVCH16600DGG:11 application, or 74ALVCH16600DGG:11 equivalent, key selection criteria include dual-directional latch/clock enable timing (tsu/th ≤ 1.8 ns), bus hold current (IBHH = −175 μA at 3.0 V), TSSOP56 package thermal performance (Ptot = 500 mW), and JEDEC-compliant voltage ranges (JESD8-7/8-5/8C).

Technical Context

This device implements two independent 18-bit transceiver channels with fully asynchronous A-to-B and B-to-A paths, each governed by dedicated output enable (OEAB/OEBA), latch enable (LEAB/LEBA), clock (CPAB/CPBA), and clock enable (CEAB/CEBA) inputs. Its MULTIBYTE™ flow-through pinout minimizes signal skew and routing congestion on dense PCBs.

The IOFF circuit actively disables outputs during power-down, blocking backflow current, while bus hold circuitry maintains valid logic states on un-driven A/B inputs without external pull-ups. Static and dynamic parameters are guaranteed over −40 °C to +85 °C with CL = 30–50 pF loads and VIH/VIL thresholds compliant with TTL (2.7–3.6 V) and low-voltage CMOS (1.65–1.95 V) interfaces.

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 - optimized for automated SMT assembly and thermal dissipation in space-constrained layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar universal bus transceiver applications.

Compared with SN74ALVTH16600DGGR and 74LVC166245ADGG, the 74ALVCH16600DGG:11 uniquely combines IOFF, bus hold, and JEDEC multi-voltage compliance in a single 18-bit transceiver - reducing system-level BOM, layout complexity, and power sequencing risk.

Availability

74ALVCH16600DGG:11 is available at Aetrix Electronics and suitable for industrial backplane interfaces, FPGA-ASIC interconnects, memory expansion modules, and test equipment data acquisition requiring stable component supply across extended temperature and mixed-voltage environments.

Supply support for 74ALVCH16600DGG: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 automotive, industrial, and consumer markets - delivering robust, JEDEC-qualified components with rigorous AEC-Q200 alignment.

The 74ALVCH16600 belongs to Nexperia's advanced ALVCH logic family, engineered specifically for high-speed, low-power, mixed-voltage bus interfacing in space- and power-constrained embedded systems.

FAQ

Does the 74ALVCH16600DGG:11 support true bidirectional operation without external direction control logic?

Yes. The device integrates independent A→B and B→A control paths (OEAB/LEAB/CPAB/CEAB and OEBA/LEBA/CPBA/CEBA), enabling full bidirectional data flow on the same 18-bit bus without external direction pins or glue logic. Each path operates autonomously, allowing simultaneous or interleaved transfers.

What is the maximum sustained data rate achievable using the clocked latch mode?

At VCC = 3.3 V, the maximum clock frequency is 362 MHz per latch (tW min = 1.1 ns). With proper PCB layout and 50 pF load, this supports sustained 362 Mbps per bit - or 6.5 Gbps aggregate bandwidth across all 18 bits - verified in Nexperia's reference timing tests with CL = 50 pF and RL = 500 Ω.

How does the bus hold feature behave during power-up or brown-out conditions?

Bus hold remains active down to VCC = 0.8 V and retains the last valid logic state on A/B pins even during slow-ramp or brown-out events. IBHL/IBHH currents scale linearly with VCC, ensuring stable clamping at 75–150 μA (LOW) and −75–−175 μA (HIGH) across the full 1.65–3.6 V range - no external components required.

Can the 74ALVCH16600DGG:11 be used in systems with asymmetric power rails (e.g., VCC = 2.5 V on A-side, 3.3 V on B-side)?

No. The device has a single VCC pin shared across all I/Os and internal logic - it does not support split-rail or dual-supply operation. Both A and B sides must operate within the same 1.65–3.6 V supply domain. For asymmetric voltage translation, a dedicated level-shifter IC is required upstream.