Texas Instruments SN74ACT3622-30PQ

Mfr. Part

SN74ACT3622-30PQ

Manufacturer

Luminary Micro / Texas Instruments

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Detailed Description

Dual synchronous FIFO memory IC designed for high-speed data buffering and bus interfacing. Each device integrates two FIFOs of 256 x 36 bits (total 18K bits), supports width expansion, programmable flags, and bi-directional bus operation. Runs from a 5 V supply (4.5 V to 5.5 V), achieves up to 33.4 MHz data rate with 15 ns access time, and is packaged in a 132-pin BQFP bumpered enclosure for robust surface-mount assembly. RoHS3 compliant. Operating temperature range 0°C to 70°C. Series: 74ACT. Base product number: 74ACT3622. Main Category: Integrated Circuits (ICs). Small Classification: Logic - FIFOs Memory. In stock quantity: 2661 units. Standard shipment in tray packaging.

Key Features

Dual FIFO: two independent 256 x 36-bit synchronous FIFOs (total 18K bits)

Synchronous clocked operation for deterministic timing

Data rate up to 33.4 MHz

Access time 15 ns

5 V operation (4.5 V to 5.5 V)

Bi-directional bus support

Width expansion capability for wider data paths

Programmable flags (status/threshold management)

No retransmit capability

No FWFT (First-Word-Fall-Through) support

132-pin BQFP bumpered package for durable SMT handling

RoHS3 compliant

Operating temperature 0°C to 70°C

Series: 74ACT (Advanced CMOS TTL-compatible family)

Key Advantages

High-speed buffering reduces latency between asynchronous or mismatched bus domains

Dual FIFO architecture simplifies complex data queueing and parallel stream handling

Deterministic synchronous timing improves system reliability and integration with clocked buses

Programmable flags enable precise flow control and interrupt-driven designs

Width expansion allows scalable data widths without redesigning the core FIFO logic

Proven 5 V ACT family compatibility with TTL-level interfacing in legacy and mixed-voltage systems

Robust bumpered BQFP package increases mechanical protection during manufacturing and handling

RoHS3 compliance supports modern environmental and regulatory requirements

Packaging

Type: 132-pin BQFP bumpered (Supplier Device Package: 132-BQFP, 24.13 mm x 24.13 mm)

Material: Molded plastic package with gull-wing leads and protective bumpers

Size: 24.13 mm x 24.13 mm body (square BQFP)

Pin configuration: 132 leads arranged around the perimeter for surface mount assembly

Mounting type: Surface Mount (SMT)

Thermal characteristics: Designed for commercial temperature range (0°C to 70°C); ensure adequate PCB copper and airflow for heat dissipation under high-speed operation

Electrical properties (key): Supply voltage 4.5 V to 5.5 V; data rate up to 33.4 MHz; access time 15 ns; bi-directional bus; synchronous operation; flags programmable; width expansion capable

Shipment format: Tray

Lifecycle

Status: Mature product in the TI 74ACT family. Availability can vary by region and date code.

Nearing discontinuation: No formal public EOL notice identified at time of listing; please verify current lifecycle status with our sales team for the latest update.

Equivalent or alternative models: Verified, pin-compatible cross-references depend on your exact timing, flag behavior, and package needs. For accurate, design-safe substitutes and detailed cross-reference lists, please contact our sales team via our website. We will provide vetted options tailored to your application.

Key Application Areas

Bus bridging and rate adaptation between subsystems

Network and telecom line cards, packet buffering, and queue management

DSP, FPGA, and microprocessor interfaces requiring elastic buffering

High-speed data acquisition and instrumentation

Video, imaging, and frame buffering pipelines

Industrial controllers and legacy 5 V systems needing reliable synchronous FIFOs

Storage controllers and I/O hubs with flow-controlled data paths

Datasheet

Our website hosts the most authoritative datasheet for SN74ACT3622-30PQ. Download the datasheet from this page to review exact specifications, timing diagrams, pin descriptions, and application guidance. For any value that appears unclear or atypical, refer directly to the datasheet for confirmation.

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