Texas Instruments SN74ALVC3631-15PQ

Mfr. Part

SN74ALVC3631-15PQ

Manufacturer

Luminary Micro / Texas Instruments

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Detailed Description

18K-bit synchronous FIFO memory organized as 512 x 36. High-speed 3.3 V CMOS device in a 132-lead bumpered QFP. Bi-directional bus, programmable flags, retransmit support. Commercial temperature 0 to 70°C. RoHS non-compliant. Series 74ALVC, base product number 74ALVC3631

Key Features

512 x 36 organization for a total of 18K bits

Synchronous operation with separate read and write clocks

Depth and width expansion supported

Programmable flag thresholds for almost-full and almost-empty

Retransmit capability for data replay

Bi-directional data bus

Data rate up to 66.7 MHz

Typical access time 9.5 ns

Single supply 3.0 V to 3.6 V

FWFT not supported

Surface-mount package, tray packing

Key Advantages

Simple, reliable buffering between different clock domains

Wide 36-bit word reduces bus complexity and lane aggregation

Programmable flags simplify flow control and backpressure

Retransmit helps recovery without extra external logic

High speed with low-voltage CMOS for lower power systems

Mature ALVC family with proven reliability

Packaging

Package type 132-BQFP Bumpered, plastic quad flat package with perimeter leads

Body size 24.13 mm x 24.13 mm, supplier device package 132-BQFP (24.13 x 24.13)

Mounting type surface mount, shipment in tray

Pin configuration 132 leads around the perimeter. Typical signals include 36-bit data I/O, read clock, write clock, enables, programmable flag outputs, reset, retransmit, and expansion pins. See datasheet for full pin map

Thermal characteristics commercial operating temperature 0°C to 70°C. Use good PCB copper and airflow for heat management. For exact thermal resistance, refer to the datasheet

Electrical properties supply 3.0 V to 3.6 V, data rate up to 66.7 MHz, access time ~9.5 ns, bus bi-directional, RoHS non-compliant plating. Note the listed maximum supply current is 350; verify exact ICC in the datasheet

Lifecycle

Status legacy synchronous FIFO. Availability may be limited and the product may be approaching end of life in some markets

Alternatives and equivalents Renesas/IDT 72V361 family (512 x 36, 3.3 V synchronous FIFO), including variants such as 72V361L and 72V361LA. Cypress/Infineon CY7C4361 family offers similar synchronous FIFO options with comparable speed and supply. Pinouts, timing, and logic may differ, so verify compatibility carefully

If you need pin-to-pin or best-fit replacements, contact our sales team via the Y-IC website for cross-reference support and up-to-date lifecycle status

Key Application Areas

Rate matching between microprocessors, DSPs, FPGAs, and ASICs

High-speed data buffering in telecom and networking equipment

Video, imaging, and frame buffering pipelines

Data acquisition and instrumentation

Storage controllers and bus-to-bus bridging

Audio streaming and packet buffering

Any design needing a deep, wide synchronous FIFO at 3.3 V

Datasheet

Our website hosts the most authoritative datasheet for SN74ALVC3631-15PQ. Download it on this page to get complete pinouts, timing diagrams, electrical characteristics, and application notes

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