Texas Instruments SN74ALVC3641-15PQ

Mfr. Part

SN74ALVC3641-15PQ

Manufacturer

Luminary Micro/Texas Instruments

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Detailed Description

Synchronous FIFO memory, organized as 1K x 36 (36K total), built for high-speed buffering and data transfer. Operates from a 3.0 to 3.6 V supply. Commercial temperature range 0 to 70°C. 132-lead Bumpered QFP package (24.13 mm x 24.13 mm), surface-mount, shipped in trays. Supports programmable flags and retransmit. No FWFT. Bi-directional bus. Series: 74ALVC. Typical operation up to 66.7 MHz with 9.5 ns access timing. RoHS non-compliant.

Key Features

Memory organization: 1024 x 36 (36K)

Type: Synchronous FIFO

Data rate: up to 66.7 MHz

Access time: 9.5 ns

Supply voltage: 3.0 V to 3.6 V

Bus direction: bi-directional

Expansion support: width and depth expansion

Programmable flags: supported (almost-full/almost-empty style)

Retransmit capability: supported

FWFT: not supported

Operating temperature: 0°C to 70°C (commercial)

Package: 132-BQFP Bumpered, 24.13 mm x 24.13 mm, surface mount

Supplier device package: 132-BQFP (24.13 x 24.13)

Family/series: 74ALVC

RoHS status: non-compliant

Max supply current: listed as 350A in source data (please verify in the datasheet; likely a unit error)

Key Advantages

Fast, deterministic timing for reliable high-throughput buffering

Simple, synchronous interface that reduces design complexity versus asynchronous FIFOs

Scales easily using width and depth expansion for broader system architectures

Programmable flags make flow control straightforward

Retransmit helps recovery and debug in data pipelines

Bumpered QFP package improves handling robustness and reduces lead damage risk

Proven 74ALVC family performance at 3.3 V logic levels

Packaging

Type: 132-lead Bumpered QFP (BQFP)

Material: plastic molded body with metal lead frame (typical for QFP; refer to datasheet for exact materials)

Size: 24.13 mm x 24.13 mm body

Mounting: surface mount

Pin configuration: 132 pins, grouped for 36-bit data I/O and standard synchronous FIFO control lines (clock, read enable, write enable, reset, status/flag outputs, expansion controls). See datasheet for full pinout.

Mechanical protection: bumper features on package corners to help prevent lead damage

Thermal characteristics: designed for commercial ambient 0°C to 70°C; actual thermal resistance depends on PCB and airflow. Follow datasheet thermal guidelines.

Electrical properties: 3.0–3.6 V operation, CMOS/TTL compatible I/O levels (per 74ALVC family), 66.7 MHz data rate, 9.5 ns access time, bi-directional bus. Verify current consumption in the datasheet.

Lifecycle

Status: This is a mature 74ALVC-series device. Not flagged here as last-time-buy, but availability can vary. RoHS is non-compliant, which may limit use in certain regions.

Alternatives and equivalents to consider (verify pinout, timing, flags, and voltage before use):

- Renesas/IDT 72V364 family (1K x 36 synchronous FIFO, 3.3 V, various speed grades)

- Renesas/IDT 72364 family (legacy 5 V synchronous FIFO; for systems still at 5 V)

- Cypress/Infineon synchronous FIFO families (CY7C42xx/CY7C43xx series; match width/depth and speed)

If you need a drop-in or a compliant replacement, or if exact crosses are required, please contact our sales team via the Y-IC website. We will provide verified, compatible options and lifecycle updates.

Key Application Areas

High-speed buffering between microcontrollers, DSPs, and FPGAs

Telecom and networking frame/packet buffering

Data acquisition and instrumentation pipelines

Video, imaging, and audio stream alignment

Bus bridging and rate matching between different clock domains

Storage and RAID controller buffers

Printer, scanner, and industrial control data queues

Datasheet

Y-IC hosts the most authoritative datasheet for SN74ALVC3641-15PQ on our product page. We recommend downloading the datasheet here to confirm electrical, timing, and pin details before design-in.

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