Texas Instruments SN74ACT3622-15PQ

Mfr. Part

SN74ACT3622-15PQ

Manufacturer

Luminary Micro/Texas Instruments. Y-IC is a quality distributor for this brand. We provide genuine products, fast delivery, and expert support to ensure you get the best parts and service.

Detailed Description

High-speed dual synchronous FIFO memory IC in a 132-pin bumpered QFP. Each FIFO is 256 x 36 bits, total 18K. Operates at 5 V (4.5–5.5 V). Up to 66.7 MHz data rate with 11 ns access time. Bi-directional bus, width expansion, and programmable status flags. Commercial temperature 0 to 70°C. Surface-mount, RoHS3 compliant. Supplied in tray. Base product number 74ACT3622. Current stock quantity: 2694.

Key Features

Dual FIFO memory: 256 x 36 per FIFO (total 18K)

Synchronous clocked operation for precise timing

5 V supply range 4.5 to 5.5 V

Data rate up to 66.7 MHz

11 ns access time

Bi-directional bus interface

Width expansion supported

Programmable status flags (almost-full, almost-empty)

No retransmit capability

No first-word fall-through (FWFT) support

132-pin bumpered QFP, body 24.13 x 24.13 mm

Surface-mount, commercial temp 0 to 70°C

RoHS3 compliant

Series 74ACT

Key Advantages

Smooth high-bandwidth buffering between mismatched data rates

Clean system timing with synchronous clocks

Wide 36-bit data paths reduce device count in wide-bus designs

Programmable flags simplify flow control and prevent overflow/underflow

Easy width expansion for scalable architectures

5 V logic compatibility for legacy and industrial systems

Robust bumpered QFP package improves mechanical protection during handling

Packaging

Type: 132-BQFP bumpered quad flat package

Material: Molded plastic body with tin-plated leads (industry standard); bumpered edges for protection

Size: 24.13 mm x 24.13 mm body outline

Pin configuration: 132 gull-wing leads around four sides; data, control, clock, and flag pins for dual FIFO operation

Mounting: Surface-mount technology

Thermal characteristics: Rated for 0 to 70°C ambient; follow datasheet and PCB thermal guidelines for best performance

Electrical properties: 4.5 to 5.5 V supply; up to 66.7 MHz operation; 11 ns access; bi-directional bus; width expansion; programmable flags; current supply (max) listed as 400A in provided data, which appears atypical—verify exact ICC limits in the datasheet

Shipping: Tray packaging for assembly-line handling

Lifecycle

Status: This is a mature 74ACT family device. Availability can vary by region and time. It is not uncommon for older ACT parts to have limited production or NRND status. Check with us for current supply status.

Direct family options: SN74ACT3622 variants may exist with different speed grades or packages under the same base number 74ACT3622. Contact Y-IC for exact ordering codes.

Close functional alternatives:

- TI SN74ACT3621 (similar dual synchronous FIFO with narrower data width)

- Renesas/IDT 72V36x family (dual synchronous FIFOs; note voltage and pinout differences)

- Infineon/Cypress CY7C42xx series (synchronous FIFO families; verify compatibility)

Important note: Pinouts, timing, voltage, and features can differ between vendors and families. Always review datasheets before substitution.

If you need a form-fit-function match or a vetted cross, contact our sales team via the Y-IC website for the latest lifecycle details and qualified alternatives.

Key Application Areas

Bus rate matching and buffering between microprocessors, DSPs, FPGAs, and ASICs

Telecom and networking line cards, packet buffering, and flow control

Data acquisition and instrumentation pipelines

Video and audio streaming buffers

Industrial control systems using 5 V logic

Storage controllers and peripheral bus bridging

Any design needing dual, wide, high-speed synchronous FIFO queues

Datasheet

Y-IC hosts the most authoritative datasheet for this product model. For accurate electrical limits, pinouts, and timing, download the datasheet directly from this page on our website.

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