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Renesas 72V03L25J
- Part No.:
- 72V03L25J
- Manufacturer:
- Renesas
- Category:
- FIFOs Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
72V03L25J.pdf
- Description:
- IC FIFO ASYNC 2KX9 25NS 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,069
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Product details
Overview
IDT72V03L25J from Renesas Electronics (formerly IDT) is a 3.3 V CMOS asynchronous FIFO memory with 2,048 × 9-bit depth and width, supporting simultaneous read/write operations in multiprocessing and rate-buffering applications. It features 15 ns access time (tA), industrial temperature range (–40°C to +85°C), active power consumption ≤60 mA, and status flags (Empty, Full, Half-Full) for overflow/underflow control.
For engineers reviewing the IDT72V03L25J datasheet, IDT72V03L25J pinout, IDT72V03L25J application, or IDT72V03L25J equivalent, key selection considerations include its 32-pin PLCC package, 25 ns speed grade, auto-retransmit capability, dual-mode expansion support (depth/width), and compatibility with legacy 720x-family systems requiring low-power 3.3 V operation.
Technical Context
The IDT72V03L25J implements ring-pointer-based asynchronous FIFO architecture with no external address bus required. Data flows via independent write (W) and read (R) control lines, with internal sequential addressing managed by dedicated write and read pointers.
It supports three operating modes: single-device (XI grounded), depth expansion (daisy-chained via XI/XO), and width expansion (parallel data buses). The FL/RT pin serves dual roles-first-load enable in depth expansion and retransmit trigger in single-device mode-with HF flag available only in non-expanded configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 2,048 × 9 bits - provides 18,432 total bits with 9-bit data path supporting parity/control bit insertion |
| Access Time (tA) | 25 ns max - determines minimum cycle time for reliable read/write transitions in high-speed buffering |
| Supply Voltage | 3.0 V to 3.6 V - compatible with 3.3 V logic systems; not 5 V tolerant |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments without derating |
| Active Current (ICC1) | ≤60 mA at 20 MHz - enables low-power system-level power budgeting |
| Status Flags | EF, FF, XO/HF - real-time hardware signaling for empty/full/half-full conditions without software polling |
| Retransmit Pulse Width (tRT) | 25 ns min - ensures robust reset of read pointer to initial location for data retransmission |
Pinout & Package
Package: 32-pin Plastic Leaded Chip Carrier (PLCC, J32-1), surface-mount, leaded, RoHS-compliant green variant available (order code G).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D0–D8 | Data Input Bus | 9-bit parallel input path; accepts data on falling edge of W |
| Q0–Q8 | Data Output Bus | 9-bit tri-state output; driven only during active R pulse |
| W | Write Enable | Falling-edge triggered write; blocked when FF = LOW to prevent overflow |
| R | Read Enable | Falling-edge triggered read; blocked when EF = LOW to prevent underflow |
| RS | Reset | Active-low synchronous reset; initializes both read/write pointers to location zero |
| FL/RT | Mode-Control Input | In single-device mode: retransmit trigger; in depth expansion: first-load indicator |
| XI | Expansion In | Grounded for single-device mode; tied to XO of prior device in daisy chain |
| XO/HF | Expansion Out / Half-Full Flag | Outputs daisy-chain pulse in expansion mode; asserts LOW when memory ≥50% full in single mode |
| EF | Empty Flag | Active-low open-drain output indicating no valid data available for read |
| FF | Full Flag | Active-low open-drain output indicating no space for additional write |
| VCC | Power Supply | 3.3 V supply input; decoupling capacitor required per high-speed CMOS practice |
| GND | Ground Reference | Signal and power ground return; must be low-impedance for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Dual-Port Operation | Independent W and R controls allow concurrent read/write without clock synchronization or arbitration logic |
| Auto-Retransmit Capability | Pulsing FL/RT LOW resets read pointer to start address while preserving write pointer position for repeat transmission |
| Expandable Architecture | Unlimited depth expansion via XI/XO chaining and width expansion via parallel data bus stacking |
| Hardware Status Signaling | Dedicated EF, FF, and XO/HF outputs eliminate need for software flag polling or external monitoring circuitry |
| Low-Power 3.3 V CMOS | Active power ≤180 mW and standby ≤18 mW reduce thermal load and extend battery life in portable systems |
Applications
| Telecom Line Card Buffering | Industrial PLC Data Pipeline |
|---|---|
Use Scenario: Buffering variable-rate data between TDM framer and packet processor in DSLAM line cards. IC Role / Device Role / Timing Role: Asynchronous rate-matching FIFO isolating clock domains between 2.048 MHz E1 interface and 100 MHz Ethernet MAC. Use Value: Prevents data loss during bursty traffic by absorbing jitter and enabling deterministic read scheduling using EF/FF flags. | Use Scenario: Interfacing sensor acquisition module (slow SPI) with real-time motion controller (fast parallel bus). IC Role / Device Role / Timing Role: Decoupling mismatched I/O speeds in programmable logic controller backplane communication. Use Value: Eliminates CPU polling overhead via hardware EF/FF handshaking, improving scan cycle determinism and reducing firmware complexity. |
| Medical Imaging Data Acquisition | Avionics Display Interface |
Use Scenario: Capturing raw pixel streams from high-resolution X-ray detector array before compression and storage. IC Role / Device Role / Timing Role: First-in/first-out temporary storage for burst-mode image frame capture at up to 25 MB/s. Use Value: Ensures lossless transfer despite intermittent host DMA availability, leveraging 2,048-word depth and 25 ns access for real-time throughput. | Use Scenario: Synchronizing graphics engine output with cockpit display refresh in DO-254-certified avionics systems. IC Role / Device Role / Timing Role: Safety-critical buffering between ARINC 661 widget server and display controller with dual-redundant read paths. Use Value: Enables fault-tolerant read retry via retransmit (RT) function without disrupting ongoing write operations to maintain display continuity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FIFO memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 72V03L25P | Same 2,048 × 9 organization and 25 ns speed, but in 32-pin PDIP package instead of PLCC | Suitable for through-hole prototyping or legacy board upgrades where socket compatibility matters | Select when manual assembly, breadboarding, or existing DIP footprint reuse is required |
| 72V03L35J | Same PLCC-32 package and functionality, but slower 35 ns access time and higher timing margins | Better suited for cost-sensitive industrial designs where 25 ns timing is unnecessary | Choose when system clock rates permit relaxed timing and lower unit cost is prioritized over peak performance |
Compared with IDT72V03L25J, the 72V03L25P offers identical electrical behavior in a through-hole package for easier validation, while the 72V03L35J trades speed for cost and margin-both require no PCB redesign but differ in mechanical fit and timing headroom.
Availability
IDT72V03L25J is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, medical imaging, and avionics applications requiring stable component supply across extended product lifecycles.
Supply support for IDT72V03L25J includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and IoT markets.
IDT72V03L25J belongs to Renesas' legacy IDT asynchronous FIFO product line, designed specifically for high-reliability, low-latency data buffering in mixed-clock-domain systems requiring deterministic flow control without software intervention.
FAQ
What is the memory depth and data width of the IDT72V03L25J?
The IDT72V03L25J provides a fixed memory organization of 2,048 words × 9 bits. This yields 18,432 total bits with a 9-bit parallel data path, allowing one bit to be reserved for parity or control purposes in serial communication protocols. Its depth is not programmable and matches the "03" designation in the part number.
Does the IDT72V03L25J support both commercial and industrial temperature ranges?
Yes, the IDT72V03L25J is specified for industrial temperature operation from –40°C to +85°C as a standard offering in the 25 ns speed grade. Commercial range (0°C to +70°C) variants exist but are distinct orderables; this specific part number is qualified for industrial use without special ordering.
Can the IDT72V03L25J be used in depth-expansion configurations?
Yes, the IDT72V03L25J supports depth expansion via its XI (Expansion In) and XO/HF (Expansion Out) pins. When chained in daisy configuration, multiple devices create larger effective memory depth. However, in this mode, the FL/RT pin functions as First Load (FL), and the Half-Full Flag (HF) and Retransmit (RT) features are disabled per the datasheet.
What is the purpose of the FL/RT pin on the IDT72V03L25J?
The FL/RT pin on the IDT72V03L25J is multifunctional: in single-device mode (XI grounded), it acts as Retransmit (RT), resetting the read pointer to the start address upon a LOW pulse; in depth-expansion mode (XI connected to prior XO), it serves as First Load (FL) to designate the initial device in the chain. Its function depends entirely on the XI signal state.
Is the IDT72V03L25J still in active production?
No - the IDT72V03L25J entered End-of-Life (EOL) per Renesas PDN# SP-17-02. Lead-finish (SnPb) versions ceased shipments after June 15, 2018. Green (RoHS-compliant) variants may remain available in limited quantities through authorized distributors, but new designs should consider migration paths or lifetime buy planning.
72V03L25J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 72V
- Package/Case:
- 32-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Size:
- 18K (2K x 9)
- Function:
- Asynchronous
- Data Rate:
- 28.5MHz
- Access Time:
- 25ns
- Voltage - Supply:
- 3 V ~ 3.6 V
- Current - Supply (Max):
- 60mA
- Bus Directional:
- Uni-Directional
- Expansion Type:
- Depth, Width
- Programmable Flags Support:
- No
- Retransmit Capability:
- Yes
- FWFT Support:
- No
- Operating Temperature:
- 0°C ~ 70°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-PLCC (14x11.46)
72V03L25J FAQ
1.How can I place an order for 72V03L25J through Aetrix?
Please submit a Request for Quotation (RFQ) for 72V03L25J on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 72V03L25J reliable?
The price and inventory of 72V03L25J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 72V03L25J is usually 5 days.
3.What payment methods are accepted for 72V03L25J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 72V03L25J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 72V03L25J?
72V03L25J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 72V03L25J order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 72V03L25J?
For technical support, including 72V03L25J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 72V03L25J requirements.
6.How does Aetrix verify that 72V03L25J is sourced from the original manufacturer or authorized distributors?
All 72V03L25J products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 72V03L25J meets industry standards.
7.What is the process for return or replacement of 72V03L25J?
All 72V03L25J units undergo pre-shipment inspection (PSI). If there is an issue with 72V03L25J, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 72V03L25J part is unused and in its original packaging.
Return procedure for 72V03L25J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
72V03L25J Tags
-
7201LA15JGI
Renesas
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7204L12JG
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72V82L15PAG8
Renesas
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7205L15JGI
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7208L20JG
Renesas
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72V2105L10PFG
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72V2111L15PFGI
Renesas
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72V2113L6PFG
Renesas
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72V36110L6PFG
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SN74ALVC7804-40DL
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7202LA25JGI
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SN74V245-15PAG
Texas Instruments
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