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IDT723641L20PF

Manufacturer Part Number:
IDT723641L20PF
Manufacturer / Brand
Renesas Electronics America Inc
Part of Description:
IC FIFO SYNC 1024X36 120-TQFP
Datasheets:
IDT723641L20PF(1).pdfIDT723641L20PF(2).pdfIDT723641L20PF(3).pdf
Lead Free Status / RoHS Status:
RoHS non-compliant
Stock Condition:
New original, 14221 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number IDT723641L20PF
Manufacturer / Brand Renesas Electronics America Inc
Stock Quantity 14221 pcs Stock
Category Integrated Circuits (ICs) > Logic - FIFOs Memory
Description IC FIFO SYNC 1024X36 120-TQFP
Lead Free Status / RoHS Status: RoHS non-compliant
RFQ IDT723641L20PF Datasheets IDT723641L20PF Details PDF
IDT723641L20PF Details PDF for FR.pdf
IDT723641L20PF Details PDF for KR.pdf
IDT723641L20PF Details PDF for IT.pdf
IDT723641L20PF Details PDF for ES.pdf
IDT723641L20PF Details PDF for DE.pdf
Voltage - Supply 4.5 V ~ 5.5 V
Supplier Device Package 120-TQFP (14x14)
Series 7200
Retransmit Capability Yes
Programmable Flags Support Yes
Package / Case 120-LQFP
Package Tray
Operating Temperature 0°C ~ 70°C
Mounting Type Surface Mount
Memory Size 36K (1K x 36)
Function Synchronous
FWFT Support Yes
Expansion Type Depth, Width
Data Rate 50MHz
Current - Supply (Max) 400µA
Bus Directional Bi-Directional
Base Product Number 723641
Access Time 13ns

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges: (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



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Company Name : IC COMPONENTS LTD Beneficiary Account Number : 549-100669-701
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Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

Any inquires or questions, please kindly contact us Email: Info@IC-Components.com


IDT723641L20PF Product Details:

The IDT723641L20PF is a high-performance, 36K (1K x 36) Synchronous First-In-First-Out (FIFO) memory integrated circuit (IC) designed by Integrated Device Technology (IDT). As a logic FIFO memory device, it is primarily used for data buffering and flow control applications.

The key features of this FIFO memory IC include its bi-directional bus, programmable flags, retransmit capability, and support for First-Word-Fall-Through (FWFT) functionality. These features make it well-suited for a variety of applications, such as networking, telecommunications, and digital signal processing (DSP) systems, where efficient data management and buffering are critical.

The IDT723641L20PF is housed in a 120-pin Thin Quad Flat Pack (TQFP) package, measuring 14x14 mm, which provides a compact and space-efficient solution. It operates within a wide temperature range of 0°C to 70°C, making it suitable for a variety of environmental conditions.

In terms of performance, the IDT723641L20PF offers a maximum data rate of 50 MHz and an access time of 13 ns, ensuring high-speed data throughput. The device is powered by a 4.5V to 5.5V supply voltage and has a maximum supply current of 400 mA.

The IDT723641L20PF is RoHS non-compliant, containing lead, which should be considered when selecting components for environmentally-conscious applications.

Equivalent or alternative models available for this FIFO memory IC include the IDT723641L20PF, IDT723641L15PF, and IDT723641L25PF, which differ in their access times and data rates.

IDT723641L20PF Image
IDT723641L20PF (1)

IDT723641L20PF Key Technical Attributes

Manufacturer Part Number: IDT723641L20PF

Manufacturer: IDT (Integrated Device Technology)

Main Category: Integrated Circuits (ICs)

Small Classification: Logic - FIFOs Memory

IDT723641L20PF Packing Size

Type: 120-TQFP (14x14)

Material: QFP

Package: Tray

Size: 120-LQFP

Pin Configuration, Thermal characteristics like Operating Temperature: 0°C ~ 70°C, and Electrical Properties: Voltage - Supply: 4.5V ~ 5.5V

IDT723641L20PF Application

This FIFO (First In, First Out) memory IC is often used in applications like data buffering, queue management in data transmission, and handling data bursts in networking, telecommunication, and computing systems.

IDT723641L20PF Features

The IDT723641L20PF offers a synchronous operating mode with a clock frequency of 50MHz ensuring rapid data handling capabilities.

Memory Size is 36K (1K x 36) permitting adequate space for data storage before it is processed or retrieved.

The IC enables bi-directional bus orientation, promoting flexibility in data transmission routes.

It includes important functionalities such as FWFT (First-Word Fall-Through) support, programmable flags, and retransmit capabilities which are essential for robust data management and error handling in complex systems.

Access Time of 13ns, making the IC highly efficient for high-speed applications.

IDT723641L20PF Quality and Safety Features

Moisture Sensitivity Level (MSL) of 3 (168 Hours), ensuring the device's reliability and longevity under various environmental conditions.

Non-RoHS compliant due to the use of lead but accommodates necessary applications where lead usage is permissible.

IDT723641L20PF Compatibility

Compatible with systems requiring a supply voltage between 4.5V ~ 5.5V and those that function within the temperature range of 0°C ~ 70°C.

Engineered for seamless integration with various microprocessors and digital systems due to its versatile features and standard footprint.

IDT723641L20PF Datasheet PDF

For the most comprehensive and detailed specifications, the datasheet of IDT723641L20PF is available for download on our website. We recommend all clients access this authoritative resource to gain a better understanding of product capabilities.

Quality Distributor

IC-Components stands as a premium distributor of IDT products. With our commitment to quality and customer service, we assure the best components for your needs. Be sure to get a quote for IDT723641L20PF from our website, where top-notch service meets reliability.

Frequently Asked Questions

What are the critical power supply and decoupling requirements for stable operation of the IDT723641L20PF in a high-speed synchronous FIFO application?
The IDT723641L20PF requires a tightly regulated 5V supply (±10%, 4.5V to 5.5V) with low-noise characteristics due to its 50MHz synchronous operation and 400mA maximum supply current. Engineers must place high-frequency ceramic decoupling capacitors (e.g., 0.1µF X7R) as close as possible to each VCC pin, supplemented by bulk capacitance (10–100µF) near the power entry point. Inadequate decoupling can lead to timing jitter, metastability, or false flag assertions, especially during simultaneous switching of the 36-bit bidirectional data bus.
Can the IDT723641L20PF be used in industrial temperature environments, and what derating or design precautions are necessary?
No, the IDT723641L20PF is rated for 0°C to 70°C commercial operation and is not suitable for industrial temperature ranges (-40°C to 85°C). Using it outside this range risks timing violations, increased access time beyond 13ns, and potential data corruption. For industrial applications, consider IDT’s extended-temperature variants (e.g., IDT723641L20PFI) or alternative FIFO families with proven -40°C to 85°C qualification.
How does the First-Word Fall-Through (FWFT) mode in the IDT723641L20PF affect system latency and control logic design compared to standard synchronous FIFO operation?
In FWFT mode, the IDT723641L20PF presents the first word at the output immediately after reset without requiring a read pulse, reducing effective latency by one clock cycle. However, this shifts control complexity to the read-side state machine, which must manage data availability based on the EF (Empty Flag) signal without an initial read strobe. Designers must ensure proper synchronization of read enables to avoid underflow, especially in bursty or variable-rate systems.
What are the key differences when replacing the IDT723641L20PF with a modern equivalent like the Cypress CY7C42x5V or Renesas 72V3650, and what design changes might be required?
Replacing the IDT723641L20PF with the CY7C42x5V or 72V3650 requires attention to voltage compatibility (many newer FIFOs are 3.3V-only), package footprint differences (e.g., BGA vs. TQFP), and flag timing behavior. The IDT723641L20PF operates at 5V and uses a 120-TQFP, while newer parts often require level shifters and PCB layout updates. Additionally, FWFT implementation and retransmit functionality may differ in control signal polarity or setup timing, necessitating firmware or state machine adjustments.
Is the IDT723641L20PF suitable for depth expansion in multi-device FIFO configurations, and what are the synchronization challenges?
Yes, the IDT723641L20PF supports depth expansion via daisy-chained control signals (e.g., EOP, FUll Flag outputs driving next device’s inputs). However, engineers must account for cumulative propagation delays across devices, which can limit maximum operating frequency in expanded systems. Clock skew between devices must be minimized using matched-length traces, and programmable almost-full/empty flags should be calibrated per chain length to prevent overflow/underflow during back-to-back transfers.
What layout and signal integrity considerations are essential when routing the 36-bit bidirectional data bus and control lines for the IDT723641L20PF at 50MHz?
At 50MHz, the IDT723641L20PF’s 36-bit bidirectional bus demands controlled impedance routing (typically 50Ω single-ended), matched trace lengths (±50mil tolerance), and minimal vias to reduce reflections and crosstalk. Ground planes should underlie high-speed signals, and guard traces or spacing (≥3x trace width) is recommended between clock and data lines. Simultaneous switching noise (SSN) from 36 outputs switching concurrently necessitates robust power distribution and possibly staggered output enable timing if EMI becomes an issue.
How should the programmable flags (almost full/empty) on the IDT723641L20PF be configured to optimize throughput in a real-time data acquisition system with variable input rates?
Programmable flags on the IDT723641L20PF should be set with hysteresis to prevent rapid toggling near threshold boundaries—e.g., configure almost-full at 80% capacity and almost-empty at 20% to allow buffer margin. In variable-rate systems, dynamic flag adjustment via microcontroller may be needed, but this adds complexity. Fixed thresholds based on worst-case burst size are preferred; misconfiguration can lead to premature flow control activation or buffer overflow during rate spikes.
Does the IDT723641L20PF support hot-swapping or live insertion, and what protection circuitry is recommended if used in modular systems?
The IDT723641L20PF does not support hot-swapping natively. Applying power during live insertion can cause latch-up or bus contention due to undefined I/O states. If used in modular designs, implement series current-limiting resistors (22–100Ω) on all I/O lines, TVS diodes for ESD protection, and staggered power sequencing (using load switches) to ensure VCC stabilizes before signal connections are made.
What is the significance of the MSL 3 (168 Hours) rating for the IDT723641L20PF, and how does it impact handling and assembly in a production environment?
The MSL 3 rating indicates the IDT723641L20PF can be exposed to ambient conditions for up to 168 hours after dry packaging is opened before requiring baking. In production, this mandates strict moisture control: trays must be sealed or stored in dry cabinets (<10% RH), and reflow must occur within the floor life window. Exceeding MSL 3 limits risks popcorning during reflow due to moisture expansion, leading to internal delamination or bond wire failure.
Can the IDT723641L20PF be safely interfaced with 3.3V logic devices, and what level-shifting strategy is recommended?
Direct interfacing with 3.3V logic is not recommended due to potential overvoltage on input pins and unreliable logic thresholds. The IDT723641L20PF’s inputs are 5V-tolerant but expect TTL levels (Vih ≥ 2.0V). For reliable bidirectional communication, use dedicated level translators (e.g., TXB0108 or SN74LVC8T245) on the data and control lines. Alternatively, ensure 3.3V outputs meet the IDT device’s Vil/Vih specs under load, but this leaves minimal noise margin and is not advised for mission-critical designs.

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