Nexperia USA Inc. 74ALVCH16652DGG,11

Overview

74ALVCH16652DGG,11 from Nexperia is a 16-bit dual-supply bus transceiver/register with independent A↔B direction control, dual clock inputs (nCPAB/nCPBA), dual select inputs (nSAB/nSBA), and dual 3-state output enables (nOEAB active-HIGH, nOEBA active-LOW). It operates from 1.2 V to 3.6 V, delivers ±24 mA drive at 3.0 V, supports real-time or registered data transfer, and features bus hold on all data inputs. It is used in high-density memory/data bus interface applications requiring bidirectional flow-through routing and register staging.

For engineers reviewing the 74ALVCH16652DGG,11 datasheet, 74ALVCH16652DGG,11 pinout, 74ALVCH16652DGG,11 application, or 74ALVCH16652DGG,11 equivalent, this device serves as a multiplexed 16-bit bidirectional transceiver with storage capability-critical for synchronous bus bridging, FPGA-to-ASIC interconnect, and hot-swap-capable backplane interfaces where signal integrity, voltage-level compatibility, and deterministic timing are essential.

Technical Context

The device implements two independent 8-bit transceiver/register sections (Section 1 and Section 2), each with separate clock, select, and enable controls. Each section supports both real-time pass-through (when nSAB/nSBA = L/H) and clocked register mode (on nCPAB/nCPBA rising edge), enabling flexible data staging without external latches.

Its MULTIBYTE™ flow-through pinout minimizes trace skew across all 16 channels, while low-inductance multiple VCC/GND pins suppress ground bounce. Bus hold circuitry maintains valid logic levels on floating A/B bus lines, eliminating need for external pull-ups in un-driven states.

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 8 GND and 4 VCC pins for low-noise power delivery.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit bidirectional transceiver/register applications.

Compared with SN74ALVTH16652DGGR and 74LVC16652DGG,11, the 74ALVCH16652DGG,11 uniquely combines ultra-wide 1.2–3.6 V operation, integrated bus hold, and JEDEC-compliant voltage thresholds-making it the only option qualified for mixed-voltage, floating-bus, and industrial-temperature applications without compromise.

Availability

74ALVCH16652DGG,11 is available at Aetrix Electronics and suitable for memory subsystem interconnect, FPGA-to-ASIC bridging, and hot-swap backplane interfaces requiring stable component supply across extended temperature and voltage ranges.

Supply support for 74ALVCH16652DGG,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 delivering high-performance, reliable components for automotive, industrial, and consumer applications, with leadership in logic, MOSFETs, and ESD protection.

This device belongs to Nexperia's ALVCH advanced low-voltage CMOS logic family-designed specifically for high-speed, low-power, multi-voltage bus interface applications in space-constrained industrial and communications systems.

FAQ

What is the difference between nOEAB and nOEBA polarity?

nOEAB is active-HIGH: when HIGH, it enables A→B outputs; when LOW, it forces those outputs into high-impedance. nOEBA is active-LOW: when LOW, it enables B→A outputs; when HIGH, it disables them. This complementary enable scheme allows independent control of each direction's driver state without conflict, supporting asymmetric bus protocols and partial bus isolation.

Can the device operate with different supply voltages on A and B sides?

No-the 74ALVCH16652DGG,11 has a single VCC pin shared across all logic and I/O circuits. It does not support split-rail or dual-supply operation. However, its 1.2 V to 3.6 V range allows interfacing with diverse logic families (e.g., 1.8 V FPGA core and 3.3 V peripheral bus) using appropriate voltage translation on external signal lines if needed.

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

Bus hold remains functional down to VCC ≥ 0.8 V, per Nexperia characterization. During power ramp-up, it engages once VCC exceeds ~0.9 V and holds floating inputs at valid logic levels before full initialization-preventing spurious outputs or latch-up in undriven states prior to firmware configuration.

Is the MULTIBYTE™ pinout compatible with PCB footprints for other 56-pin TSSOP transceivers?

Yes-the SOT364-1 footprint is mechanically identical to standard 56-pin TSSOP packages (e.g., JEDEC MO-153), and the MULTIBYTE™ layout follows consistent A0–A7/B0–B7 pairing. However, signal mapping differs from non-MULTIBYTE devices (e.g., 74LVC16245); always verify pin assignments against the 74ALVCH16652DGG,11 datasheet before footprint reuse.