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Renesas 72V03L25JGI
- Part No.:
- 72V03L25JGI
- Manufacturer:
- Renesas
- Category:
- FIFOs Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
72V03L25JGI.pdf
- Description:
- IC FIFO ASYNC 2KX9 25NS 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,931
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Product details
Overview
IDT72V03L25JGI from Renesas Electronics (formerly IDT) is a 3.3 V CMOS asynchronous FIFO memory with 2,048 × 9-bit depth and width, designed for rate-matching and data buffering between asynchronous clock domains. It supports simultaneous read/write operations, features Empty/Full/Half-Full status flags, and delivers 25 ns access time with industrial temperature range (–40°C to +85°C). Used in telecom interface bridges and industrial protocol converters where deterministic latency and overflow/underflow protection are critical.
For engineers reviewing the IDT72V03L25JGI datasheet, IDT72V03L25JGI pinout, IDT72V03L25JGI application, or IDT72V03L25JGI equivalent, key selection criteria include its 2,048-word depth, 9-bit data bus, PLCC-32 package, 25 ns timing grade, and auto-retransmit capability - all validated for industrial-grade reliability in multiprocessing and serial data stream buffering.
Technical Context
This device implements a dual-port ring-buffer architecture using internal write and read pointers, eliminating external address management. Data flows first-in/first-out without CPU intervention, and status flags (EF, FF, XO/HF) are generated synchronously with control edges to prevent metastability in boundary conditions.
It operates in three primary modes: single-device (XI grounded), depth expansion (daisy-chained via XI/XO), and width expansion (parallel devices sharing R/W/RS). Retransmit (FL/RT) resets the read pointer without affecting write position, enabling repeat transmission of buffered data - a feature disabled only in depth expansion mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Depth × Width | 2,048 × 9 bits - provides 1,8432 total bits for burst-mode data staging between mismatched interfaces |
| Access Time (tA) | 25 ns max - enables operation up to 28.5 MHz shift frequency in industrial temperature range |
| Supply Voltage | 3.0 V to 3.6 V - compatible with 3.3 V logic families and low-power system rails |
| Power Consumption | Active: ≤60 mA (≤198 mW); Power-down: ≤5 mA (≤16.5 mW) - reduces thermal load in dense PCB layouts |
| Operating Temperature | –40°C to +85°C - qualified for industrial automation and base station equipment |
| Status Flags | EF, FF, XO/HF - provide real-time buffer occupancy feedback without polling overhead |
| Retransmit Capability | FL/RT pin pulses LOW to reset read pointer - supports error recovery in packet retransmission protocols |
Pinout & Package
Package: 32-pin Plastic Leaded Chip Carrier (PLCC, J32-1), lead finish SnPb (EOL as of June 15, 2018).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D0–D8 | Data Input Bus | 9-bit parallel input path for write operations; latched on falling edge of W |
| Q0–Q8 | Data Output Bus | 9-bit tristate output path; driven only during active read cycle (R LOW) |
| W | Write Enable | Falling-edge triggered write strobe; blocked when FF = LOW to prevent overflow |
| R | Read Enable | Falling-edge triggered read strobe; blocked when EF = LOW to prevent underflow |
| RS | Reset | Asynchronous active-LOW reset; initializes both read and write pointers to location zero |
| FL/RT | First Load / Retransmit | In single-device mode: active-LOW retransmit; in depth expansion: grounded to indicate first device |
| XI | Expansion In | Ground = single-device mode; tied to XO of prior device in daisy-chain depth expansion |
| XO/HF | Expansion Out / Half-Full Flag | In single mode: HF asserts LOW at 50% fill; in depth mode: pulse signals end-of-buffer to next device |
| EF | Empty Flag | Open-drain output; LOW indicates no valid data available for read |
| FF | Full Flag | Open-drain output; LOW indicates no space remaining for write |
| VCC, GND | Power Supply | 3.3 V core supply (3.0–3.6 V); decoupling required per high-speed CMOS layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Dual-Port Operation | Independent read and write clocks not required - simplifies design in mixed-timing systems |
| Expandable Architecture | Unlimited depth (daisy-chain) and width (parallel) expansion without external logic |
| Auto-Retransmit Function | FL/RT pin resets read pointer to start while preserving write pointer - essential for ARQ protocols |
| Industrial Temperature Rating | –40°C to +85°C operation verified - suitable for factory-floor controllers and outdoor comms gear |
| Low-Power CMOS Process | 180 mW max active power - enables use in thermally constrained embedded modules |
Applications
| Telecom Line Interface Buffer | Industrial Protocol Converter |
|---|---|
Use Scenario: Buffering T1/E1 framing data between line-side PHY and backplane controller with clock domain crossing. IC Role / Device Role / Timing Role: Asynchronous FIFO decouples jitter-prone line clock from stable system clock; EF/FF flags manage flow control handshake. Use Value: Prevents bit slips and frame loss during clock drift; 2,048-word depth accommodates worst-case burst latency in legacy telecom stacks. | Use Scenario: Bridging Modbus RTU (RS-485) and EtherNet/IP (100BASE-TX) in PLC gateway hardware. IC Role / Device Role / Timing Role: Rate-matching FIFO absorbs speed mismatch between serial fieldbus and switched Ethernet MAC layer. Use Value: Eliminates software-based buffering delays; hardware flags enable deterministic interrupt-driven packet assembly/disassembly. |
| Embedded Audio Stream Adapter | Multiprocessor Shared Memory Bridge |
Use Scenario: Synchronizing I²S audio samples from codec to DSP running at different sample rates. IC Role / Device Role / Timing Role: 9-bit data path supports stereo I²S + parity; retransmit enables glitch-free resync after clock recovery events. Use Value: Maintains audio continuity across sample-rate changes; 25 ns access ensures sub-1 µs latency in real-time audio paths. | Use Scenario: Interfacing two ARM cores with independent AXI buses requiring shared command queue handoff. IC Role / Device Role / Timing Role: Dual-port FIFO acts as non-blocking inter-processor communication channel with hardware flow control. Use Value: Offloads CPU from spin-wait polling; EF/FF flags enable efficient event-driven scheduling without cache coherency overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FIFO memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 72V03L25JI | Same 2,048×9 depth, 25 ns speed, PLCC-32 package; green (lead-free) variant per ordering code G | Identical functionality and pinout; differs only in RoHS-compliant termination | Select when lead-free compliance is mandatory and SnPb is prohibited by regional regulations |
| 72V03L35JGI | Slower 35 ns access time; otherwise identical electrical and mechanical specs | Lower maximum operating frequency (22.2 MHz vs. 28.5 MHz); same industrial temp range | Choose when system timing budget allows relaxed access time and cost optimization is prioritized |
Compared with IDT72V03L25JGI, the 72V03L25JI offers identical performance with RoHS compliance, while 72V03L35JGI trades 11 ns of access latency for reduced cost - both retain full functional and pin compatibility for drop-in replacement in existing PLCC-32 layouts.
Availability
IDT72V03L25JGI is available at Aetrix Electronics and suitable for telecom infrastructure, industrial protocol conversion, and embedded audio buffering requiring stable component supply through extended product lifecycles.
Supply support for IDT72V03L25JGI 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 applications.
IDT72V03L25JGI belongs to the legacy IDT 72Vxx asynchronous FIFO family, engineered specifically for deterministic, low-latency data buffering in heterogeneous timing environments - particularly where clock domain isolation and hardware flow control are essential.
FAQ
What is the memory organization of the IDT72V03L25JGI?
IDT72V03L25JGI provides a 2,048 × 9-bit asynchronous FIFO structure, meaning it stores 2,048 words of 9-bit data. This configuration supports standard 8-bit data plus one parity or control bit, making it ideal for error-checked serial communications and industrial fieldbus applications where integrity verification is required alongside payload transfer.
Does the IDT72V03L25JGI support industrial temperature operation?
Yes, IDT72V03L25JGI is fully specified for industrial temperature range (–40°C to +85°C) at its 25 ns speed grade. This qualification is explicitly stated in the datasheet's AC Electrical Characteristics table and Operating Conditions section, confirming its suitability for deployment in harsh-environment control systems and outdoor telecom equipment.
How does the retransmit function work on the IDT72V03L25JGI?
The IDT72V03L25JGI uses the FL/RT pin in single-device mode to initiate retransmit: pulsing FL/RT LOW resets the internal read pointer to location zero while leaving the write pointer unchanged. This enables repeated reading of buffered data without rewriting - a critical capability for ARQ protocols and firmware update rollback sequences.
Is the IDT72V03L25JGI pin-compatible with earlier 5 V FIFOs like the 7203?
No, IDT72V03L25JGI is not pin-compatible with the 5 V 7203 family. Although functionally compatible (same pin functions and logic behavior), it requires 3.3 V supply and has different DC characteristics (e.g., VIH = 2.0 V min vs. 2.0 V for 5 V parts), necessitating level-shifting or redesign if replacing legacy 5 V designs.
What package type is used for the IDT72V03L25JGI?
IDT72V03L25JGI uses a 32-pin Plastic Leaded Chip Carrier (PLCC) package, designated J32-1 in IDT documentation and indicated by the "J" suffix in the part number. This surface-mount package features a J-lead contour and is compatible with standard PLCC sockets and reflow profiles for industrial assembly.
72V03L25JGI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 72V
- Package/Case:
- 32-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-PLCC (14x11.46)
72V03L25JGI FAQ
1.How can I place an order for 72V03L25JGI through Aetrix?
Please submit a Request for Quotation (RFQ) for 72V03L25JGI 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 72V03L25JGI reliable?
The price and inventory of 72V03L25JGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 72V03L25JGI is usually 5 days.
3.What payment methods are accepted for 72V03L25JGI?
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4.How is shipping managed for 72V03L25JGI?
72V03L25JGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 72V03L25JGI 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 72V03L25JGI?
For technical support, including 72V03L25JGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 72V03L25JGI requirements.
6.How does Aetrix verify that 72V03L25JGI is sourced from the original manufacturer or authorized distributors?
All 72V03L25JGI 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 72V03L25JGI meets industry standards.
7.What is the process for return or replacement of 72V03L25JGI?
All 72V03L25JGI units undergo pre-shipment inspection (PSI). If there is an issue with 72V03L25JGI, 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 72V03L25JGI part is unused and in its original packaging.
Return procedure for 72V03L25JGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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