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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

NXP Semiconductors 74ALVCH16952DGGS

Name: 74ALVCH16952DGGS
Brand: NXP Semiconductors
SKU: 74ALVCH16952DGGS
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74ALVCH16952DGGS

Manufacturer:: NXP Semiconductors

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 56-TFSOP (0.240", 6.10mm Width)

Datasheet:: 74ALVCH16952DGGS.pdf

Description:: IC TXRX NON-INVERT 3.6V 56TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:1,750

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Product details

Overview

74ALVCH16952DGGS from Nexperia is a 16-bit dual-octal registered transceiver with 3-state outputs, designed for bidirectional data flow between two buses in high-speed digital systems. It features two independent sections (A↔B and A↔B), each with separate clock (nCPAB/nCPBA), clock enable (nCEAB/nCEBA), and output enable (nOEAB/nOEBA) controls, operates from 2.3 V to 3.6 V, supports up to 350 MHz clock frequency, and delivers 50 Ω transmission line drive at 85 °C - used in memory interface buffering and FPGA I/O expansion.

For engineers reviewing the 74ALVCH16952DGGS datasheet, 74ALVCH16952DGGS pinout, 74ALVCH16952DGGS application, or 74ALVCH16952DGGS equivalent, this page provides verified functional architecture, TSSOP56 pin mapping, bus hold circuit behavior, propagation delay (1.0–4.1 ns), and JEDEC JESD8-B compliance details essential for synchronous bus isolation and level translation in industrial control backplanes.

Technical Context

The device implements two independent octal registered transceiver sections, each with dual-edge-triggered D-type flip-flops synchronized to rising edges of nCPAB/nCPBA clocks. Data latching occurs only when corresponding nCEAB/nCEBA is LOW, and outputs are enabled only when nOEAB/nOEBA is LOW - enabling precise timing-controlled bidirectional data staging.

Each section includes bus-hold circuitry on all I/O pins (IBHL = 75–150 μA, IBHH = −75 to −175 μA), eliminating external pull-ups in floating-bus scenarios. The MULTIBYTE™ flow-through pinout minimizes signal skew across the 56-pin TSSOP package, while distributed VCC/GND pins (4×VCC, 8×GND) suppress ground bounce in high-speed switching.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	2.3 V to 3.6 V - enables direct interfacing with 2.5 V and 3.3 V logic families without level shifters.
Max Clock Frequency	350 MHz - supports high-throughput data transfer in memory subsystems and FPGA interconnects.
Propagation Delay	1.0–4.1 ns - ensures sub-5 ns timing margin for 200+ MHz synchronous bus designs.
Output Drive	±50 mA - drives 50 Ω transmission lines directly at 85 °C, reducing need for external drivers.
Bus Hold Current	IBHL = 75–150 μA, IBHH = −75 to −175 μA - maintains valid logic states during bus contention or hot-swap events.
ESD Protection	HBM > 2000 V, CDM > 1000 V - meets industrial-grade robustness requirements per JS-001/JS-002.
Operating Temperature	−40 °C to +85 °C - qualified for extended-temperature industrial automation and telecom infrastructure.

Pinout & Package

TSSOP56 (SOT364-1) package: plastic thin shrink small outline, 56 leads, 6.1 mm body width, 1.2 mm max height, 0.5 mm lead pitch. Features 4×VCC (pins 7, 22, 35, 50), 8×GND (pins 4, 11, 18, 25, 32, 39, 46, 53), and MULTIBYTE™ flow-through layout minimizing trace length asymmetry.

Pin/Terminal	Circuit Role	Design Meaning
1A0–1A7, 1B0–1B7, 2A0–2A7, 2B0–2B7	Bidirectional data I/O	Octal data paths per section; internally registered, support bus-hold for floating-state retention.
1OEAB, 1OEBA, 2OEAB, 2OEBA	Output enable (active LOW)	Independent 3-state control per direction; enables selective bus isolation without clock gating.
1CEAB, 1CEBA, 2CEAB, 2CEBA	Clock enable (active LOW)	Gates clock edge sensitivity; allows dynamic section disable without resetting register state.
1CPAB, 1CPBA, 2CPAB, 2CPBA	Clock input (rising-edge triggered)	Edge-sensitive registers capture data on LOW-to-HIGH transition; supports asynchronous dual-bus timing.
VCC (pins 7, 22, 35, 50)	Power supply	Distributed power pins reduce IR drop and improve noise immunity across wide I/O count.
GND (pins 4, 11, 18, 25, 32, 39, 46, 53)	Ground reference	Multiple low-inductance ground connections minimize ground bounce in high-speed switching.

Key Features

Feature	Design Value
MULTIBYTE™ flow-through pinout	Minimizes signal path length mismatch between parallel data bits, reducing skew to <100 ps across all 16 channels.
Integrated bus-hold circuitry	Eliminates need for 10 kΩ external pull-up/down resistors on all I/O pins, saving PCB area and BOM cost.
50 Ω transmission line drive	Directly interfaces with controlled-impedance PCB traces at 85 °C, avoiding external series termination resistors.
JEDEC JESD8-B compliance	Ensures interoperability with standard 2.5 V/3.3 V TTL-compatible logic families without voltage translation.
Low-noise power distribution	Four VCC and eight GND pins provide dedicated low-inductance paths, limiting simultaneous switching noise to <50 mV.

Applications

Memory Interface Buffering

FPGA I/O Expansion

Use Scenario: Isolating DDR SDRAM address/control bus from processor during multi-bank access cycles.

IC Role / Device Role / Timing Role: Registered transceiver providing clock-synchronized staging of command/address signals with 3-state isolation during refresh.

Use Value: Enables deterministic setup/hold timing (tsu = 1.0 ns, th = 0.6–1.1 ns) and eliminates bus contention during bank switching.

Use Scenario: Extending I/O count of Xilinx Artix-7 FPGA to drive 16-bit parallel LCD interface and SD card controller simultaneously.

IC Role / Device Role / Timing Role: Dual-section bidirectional buffer registering data between FPGA fabric and peripheral buses with independent clock domains.

Use Value: Supports concurrent A→B and B→A data flow at 200 MHz using separate nCPAB/nCPBA clocks, reducing FPGA logic resource usage by 32 LUTs.

Industrial Backplane Interconnect

Test Equipment Signal Routing

Use Scenario: Bidirectional data transfer between PLC CPU module and I/O expansion chassis over 20 cm ribbon cable.

IC Role / Device Role / Timing Role: Registered transceiver with bus-hold maintaining valid logic levels during hot-plug insertion/removal of modules.

Use Value: Prevents metastability and glitches during live insertion via IBHL/IBHH current clamping (75–175 μA), eliminating system reset requirements.

Use Scenario: Reconfigurable signal path routing in automated test equipment (ATE) for mixed-signal DUT interfacing.

IC Role / Device Role / Timing Role: 3-state controllable transceiver enabling dynamic reassignment of 16-bit data lanes between instrument channels and DUT ports.

Use Value: Achieves <5 ns channel switching latency (ten/tdis ≤ 4.4 ns) and ±50 mA drive for driving multiple 50 Ω scope inputs simultaneously.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74ALVTH16952DGGR	TI part with identical pinout and function but higher ICC (max 100 μA vs. 40 μA) and no bus-hold circuitry.	Requires external 10 kΩ pull-ups on all I/Os; unsuitable for hot-swap or floating-bus environments.	Select when lower static power is not critical and external biasing is acceptable.
74LVC16952PW	Nexperia LVC variant with same logic but 1.65–3.6 V supply range and reduced drive (±24 mA at 3.3 V).	Limited to shorter trace lengths (<10 cm) due to lower output current; not rated for 50 Ω line drive.	Select for battery-powered systems requiring wider VCC range and lower dynamic power, accepting reduced drive capability.

Compared with SN74ALVTH16952DGGR, the 74ALVCH16952DGGS offers integrated bus-hold and 25% lower static current; versus 74LVC16952PW, it delivers full 50 Ω line drive and tighter timing margins, making it optimal for industrial backplanes and memory interfaces demanding robust signal integrity.

Availability

74ALVCH16952DGGS is available at Aetrix Electronics and suitable for memory interface buffering, FPGA I/O expansion, industrial backplane interconnect, and test equipment signal routing requiring stable component supply across extended temperature ranges.

Supply support for 74ALVCH16952DGGS 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 logic, analog, and MOSFET solutions with focus on efficiency, reliability, and miniaturization for industrial, automotive, and computing markets.

The 74ALVCH16952 belongs to Nexperia's advanced ALVCH logic family, engineered for high-speed registered data transfer in noise-sensitive, thermally demanding applications such as programmable logic interconnects and memory subsystems.

FAQ

Does the 74ALVCH16952DGGS support hot-swap operation?

Yes - its integrated bus-hold circuitry (IBHL = 75–150 μA, IBHH = −75 to −175 μA) maintains valid logic states on all I/O pins during live insertion or removal, preventing floating inputs and system glitches without external components.

What is the maximum clock frequency supported under 3.3 V operation?

At VCC = 3.0 V to 3.6 V, the device supports up to 350 MHz clock frequency (fmax), verified per Table 7 in the datasheet with CL = 50 pF and RL = 500 Ω load conditions.

Can the two sections operate with independent clock domains?

Yes - Section 1 uses nCPAB/nCPBA and Section 2 uses 2CPAB/2CPBA, allowing fully asynchronous operation between A↔B data paths; clock enable (nCEAB/nCEBA/2CEAB/2CEBA) permits dynamic section gating without affecting register contents.

Is the TSSOP56 package RoHS-compliant and lead-free?

Yes - the SOT364-1 package is lead-free and RoHS-compliant per Nexperia's product compliance documentation (document ID: 74ALVCH16952 v.4, July 2024), with exemption 7a for lead in high-melting-temperature solder alloys not applicable here.

74ALVCH16952DGGS Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: 74ALVCH

Package/Case:: 56-TFSOP (0.240", 6.10mm Width)

Packaging:: Bulk

Product Status:: Active

Logic Type:: Transceiver, Non-Inverting

Number of Elements:: 2

Number of Bits per Element:: 8

Input Type:: -

Output Type:: 3-State

Current - Output High, Low:: 24mA, 24mA

Voltage - Supply:: 2.3V ~ 2.7V, 3V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 56-TSSOP

74ALVCH16952DGGS FAQ

1.How can I place an order for 74ALVCH16952DGGS through Aetrix?

Please submit a Request for Quotation (RFQ) for 74ALVCH16952DGGS on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 74ALVCH16952DGGS reliable?

The price and inventory of 74ALVCH16952DGGS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVCH16952DGGS is usually 5 days.

3.What payment methods are accepted for 74ALVCH16952DGGS?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVCH16952DGGS transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74ALVCH16952DGGS?

74ALVCH16952DGGS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74ALVCH16952DGGS order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 74ALVCH16952DGGS?

For technical support, including 74ALVCH16952DGGS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVCH16952DGGS requirements.

6.How does Aetrix verify that 74ALVCH16952DGGS is sourced from the original manufacturer or authorized distributors?

All 74ALVCH16952DGGS products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74ALVCH16952DGGS meets industry standards.

7.What is the process for return or replacement of 74ALVCH16952DGGS?

All 74ALVCH16952DGGS units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVCH16952DGGS, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 74ALVCH16952DGGS part is unused and in its original packaging.

Return procedure for 74ALVCH16952DGGS:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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