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Renesas 72V02L25JGI8
- Part No.:
- 72V02L25JGI8
- Manufacturer:
- Renesas
- Category:
- FIFOs Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
72V02L25JGI8.pdf
- Description:
- IC FIFO ASYNC 1KX9 25NS 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,489
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Product details
Overview
72V02L25JGI8 from Renesas Electronics (formerly IDT) is a 3.3 V CMOS asynchronous FIFO memory with 1,024 × 9-bit depth and width, 25 ns access time, industrial temperature range (–40°C to +85°C), and 32-pin PLCC package. It supports simultaneous read/write, auto-retransmit, and status flags (Empty, Full, Half-Full), used in rate buffering between mismatched data streams in industrial communications and embedded control systems.
For engineers reviewing the 72V02L25JGI8 datasheet, 72V02L25JGI8 pinout, 72V02L25JGI8 application, or 72V02L25JGI8 equivalent, this page delivers verified technical context, real-world timing behavior, pin-level functional roles, and validated alternatives for FIFO-based system synchronization and data flow-through design.
Technical Context
The 72V02L25JGI8 implements dual-port asynchronous FIFO architecture using ring pointers-no external address bus required-with independent write and read control paths (W and R inputs). Its 9-bit data path supports parity or control bit insertion, and internal flag logic (EF, FF, XO/HF) enables boundary condition monitoring without host intervention.
It operates in Single Device Mode (XI grounded) or Depth/Width Expansion modes, with retransmit (RT) capability resetting only the read pointer while preserving write state. Timing is characterized at VCC = 3.3 V ± 0.3 V across –40°C to +85°C, with tA = 25 ns, tRC = 35 ns, and tWC = 35 ns, meeting deterministic latency requirements in real-time buffering applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 1,024 × 9-bit (9,216 bits total); supports 9-bit data words with optional parity/control bit |
| Access Time (tA) | 25 ns max; defines minimum delay between write/read enable assertion and valid data on bus |
| Supply Voltage | 3.0 V to 3.6 V; compatible with 3.3 V logic families and low-power system rails |
| Operating Temperature | –40°C to +85°C; qualified for industrial environments without derating |
| Power Consumption | Active: ≤60 mA (ICC1), Standby: ≤5 mA (ICC2); enables power-sensitive embedded designs |
| Status Flags | EF (Empty), FF (Full), XO/HF (Half-Full or Expansion Out); provide real-time buffer occupancy feedback |
| Retransmit Function | RT input resets read pointer to start address without affecting write pointer; enables data replay without host software overhead |
Pinout & Package
Package: 32-pin Plastic Leaded Chip Carrier (PLCC, J32-1), surface-mount, 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; latched on falling edge of W; accepts control/parity bits per application need |
| Q0–Q8 | Data Output Bus | 9-bit high-impedance outputs enabled on falling edge of R; tri-stated when R = HIGH |
| W | Write Enable | Falling-edge triggered write strobe; initiates storage into next sequential location if FF = HIGH |
| R | Read Enable | Falling-edge triggered read strobe; outputs next sequential word if EF = HIGH |
| RS | Reset | Active-Low synchronous reset; sets both read/write pointers to zero; required before first write |
| FL/RT | First Load / Retransmit | In Single Device Mode (XI = GND): RT function-pulsing LOW resets read pointer to start address |
| XI | Expansion In | Grounded for Single Device Mode; tied to XO of prior device in Depth Expansion chain |
| XO/HF | Expansion Out / Half-Full Flag | In Single Device Mode: HF output goes LOW when ≥512 words stored; in Depth Expansion: pulse signal to next device |
| EF | Empty Flag | Open-drain output; LOW indicates no valid data available for read; must be monitored before asserting R |
| FF | Full Flag | Open-drain output; LOW indicates no space for new write; must be monitored before asserting W |
| VCC, GND | Power Supply | 3.3 V supply and ground pins; decoupling required within 10 mm for stable 25 ns timing operation |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Dual-Port Operation | Independent W and R controls allow concurrent read/write without clock domain alignment or arbitration logic |
| Auto-Retransmit Capability | RT input enables hardware-level data replay from start address-critical for protocol recovery in serial comms |
| Expandable Architecture | Supports unlimited depth expansion (daisy-chain via XI/XO) and width expansion (parallel devices) without redesign |
| 9-Bit Data Path with Flag Logic | EF/FF/HF flags are internally generated and synchronized-eliminates need for external status decoding logic |
| Industrial Temperature Qualification | Specified and tested over –40°C to +85°C at 25 ns speed grade-enables deployment in harsh environments |
Applications
| Industrial Rate Buffering | Serial Protocol Recovery |
|---|---|
|
Use Scenario: Bridging UART-to-DSP interfaces where transmit and receive clocks differ by >10%. IC Role / Device Role / Timing Role: Asynchronous FIFO absorbing jitter and burst mismatches; EF/FF prevent overrun/underrun during clock domain crossing. Use Value: Eliminates software polling or complex handshaking-reduces CPU load by 35% in legacy industrial controllers. |
Use Scenario: Re-sending corrupted CAN or RS-485 frames after CRC failure detection. IC Role / Device Role / Timing Role: Hardware retransmit engine; RT input triggers immediate read pointer reset without host register access. Use Value: Achieves sub-200 ns retransmit latency-meets <500 µs frame recovery window in safety-critical fieldbus nodes. |
| Embedded Multiprocessor Messaging | Legacy System Interfacing |
|
Use Scenario: Passing sensor data between ARM Cortex-M4 and FPGA subsystems with independent clock domains. IC Role / Device Role / Timing Role: Decoupling buffer enabling lock-free producer-consumer communication; XO/HF signals buffer fill level to scheduler. Use Value: Enables deterministic 1.024 kB message transfer with <1 µs jitter-supports hard real-time scheduling in motor drives. |
Use Scenario: Adapting 8-bit microcontroller peripherals to 9-bit legacy instrumentation buses (e.g., MIL-STD-1553B auxiliary channels). IC Role / Device Role / Timing Role: Width-expanded FIFO (two 72V02L25JGI8 in parallel) providing 18-bit path with shared control lines. Use Value: Maintains full 25 ns timing integrity across 18-bit bus-avoids timing skew issues seen with discrete glue logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FIFO memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 72V02L25JG | Same 1,024 × 9 organization and 25 ns timing, but commercial temp range (0°C to +70°C) only | Not suitable for industrial ambient conditions; requires thermal derating above 70°C | Select only for cost-sensitive commercial equipment with controlled environment |
| 72V02L35JGI8 | Slower 35 ns access time; otherwise identical pinout, voltage, and feature set | Higher timing margin allows use with slower controllers or longer trace lengths; reduces EMI risk | Choose when system timing budget permits 10 ns relaxation and board layout lacks tight routing control |
Compared with 72V02L25JGI8, the 72V02L25JG sacrifices industrial temperature support for lower unit cost, while the 72V02L35JGI8 trades speed for robustness in electrically noisy or thermally marginal layouts-neither is pin-compatible drop-in replacement due to differing temperature qualification and timing binning.
Availability
72V02L25JGI8 is available at Aetrix Electronics and suitable for industrial rate buffering, serial protocol recovery, embedded multiprocessor messaging, and legacy system interfacing requiring stable component supply and long-term lifecycle continuity.
Supply support for 72V02L25JGI8 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 memory solutions for automotive, industrial, and infrastructure markets.
The IDT72V0x family-including 72V02L25JGI8-was designed specifically for asynchronous data rate matching in real-time embedded systems where clock domain isolation and deterministic latency are critical.
FAQ
What is the operating temperature range for the 72V02L25JGI8?
The 72V02L25JGI8 is rated for industrial temperature operation from –40°C to +85°C. This specification is guaranteed across all AC and DC electrical parameters in the datasheet, including 25 ns access time and flag timing delays. The "I" suffix in the part number explicitly denotes industrial qualification, distinguishing it from commercial-grade variants like 72V02L25JG.
Does the 72V02L25JGI8 support retransmission without host processor involvement?
Yes-the 72V02L25JGI8 supports hardware-level retransmission via its FL/RT pin. When pulsed LOW in Single Device Mode (XI = GND), the internal read pointer resets to the first memory location while the write pointer remains unchanged. This enables immediate data replay without CPU register writes, reducing recovery latency to under 200 ns in serial protocol implementations.
Can multiple 72V02L25JGI8 devices be cascaded for deeper memory capacity?
Yes-depth expansion is supported by connecting the XO pin of one 72V02L25JGI8 to the XI pin of the next, with FL grounded on the first device and pulled HIGH on subsequent units. External logic must OR all EF and FF outputs to generate composite flags. Note: Half-Full Flag and Retransmit functions are disabled in depth expansion mode.
What is the significance of the "J" in the 72V02L25JGI8 package code?
The "J" denotes a 32-pin Plastic Leaded Chip Carrier (PLCC, J32-1) package. This surface-mount package features gull-wing leads, a ceramic body, and an index corner for orientation. It is distinct from SOIC or TSSOP packages and requires specific reflow profiles and PCB land patterns per IDT's packaging documentation.
Is the 72V02L25JGI8 still in active production?
No-the 72V02L25JGI8 entered End-of-Life (EOL) per Renesas PDN# SP-17-02, with last-time-buy expiring June 15, 2018. Aetrix Electronics maintains legacy inventory with full traceability and offers lifecycle management support, including obsolescence forecasting and cross-reference guidance for migration paths.
72V02L25JGI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 72V
- Package/Case:
- 32-LCC (J-Lead)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Size:
- 9K (1K 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)
72V02L25JGI8 FAQ
1.How can I place an order for 72V02L25JGI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 72V02L25JGI8 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 72V02L25JGI8 reliable?
The price and inventory of 72V02L25JGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 72V02L25JGI8 is usually 5 days.
3.What payment methods are accepted for 72V02L25JGI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 72V02L25JGI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 72V02L25JGI8?
72V02L25JGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 72V02L25JGI8 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 72V02L25JGI8?
For technical support, including 72V02L25JGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 72V02L25JGI8 requirements.
6.How does Aetrix verify that 72V02L25JGI8 is sourced from the original manufacturer or authorized distributors?
All 72V02L25JGI8 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 72V02L25JGI8 meets industry standards.
7.What is the process for return or replacement of 72V02L25JGI8?
All 72V02L25JGI8 units undergo pre-shipment inspection (PSI). If there is an issue with 72V02L25JGI8, 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 72V02L25JGI8 part is unused and in its original packaging.
Return procedure for 72V02L25JGI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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