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Renesas 72V02L15JG8
- Part No.:
- 72V02L15JG8
- Manufacturer:
- Renesas
- Category:
- FIFOs Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
72V02L15JG8.pdf
- Description:
- IC FIFO ASYNC 1KX9 15NS 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,447
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Product details
Overview
72V02L15JG8 from Renesas Electronics (formerly IDT) is a 3.3 V CMOS asynchronous FIFO memory with 1,024 × 9-bit depth and width, 15 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-matching buffers between mismatched data streams in telecom and embedded control systems.
For engineers reviewing the 72V02L15JG8 datasheet, 72V02L15JG8 pinout, 72V02L15JG8 application, or 72V02L15JG8 equivalent, key selection criteria include its 15 ns tA, 9-bit data path with parity support, dual-port asynchronous operation, low-power active/standby current (60 mA / 5 mA), and PLCC-32 mechanical compatibility for legacy board reuse.
Technical Context
The 72V02L15JG8 implements a ring-pointer-based FIFO architecture with no external address bus-data flows strictly first-in/first-out via W and R control edges. Its internal RAM array is 1,024 × 9 bits, enabling 9-bit word buffering with optional parity bit handling for error-checked serial communications.
It operates fully asynchronously: write and read cycles are independent, with timing governed by tA = 15 ns, tRC = 25 ns, and tWC = 25 ns. Status flag logic (EF, FF, XO/HF) is synchronized to internal pointer positions-not clock edges-ensuring deterministic boundary detection without clock domain crossing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Depth × Width | 1,024 × 9 bits - supports one full 9-bit data word per address, ideal for byte+parity or 8-bit data + control bit applications |
| Access Time (tA) | 15 ns max - enables reliable operation at up to ~40 MHz shift frequency in high-speed interface bridging |
| Supply Voltage | 3.0 V to 3.6 V - compatible with 3.3 V LVTTL and LVCMOS I/O domains without level translation |
| Active Current (ICC1) | 60 mA max - corresponds to ~180 mW power dissipation, suitable for thermally constrained industrial modules |
| Standby Current (IICC2) | 5 mA max - reduces idle power by 92% vs active mode, critical for intermittent-data systems |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including factory automation and base station equipment |
| Data Interface | Asynchronous dual-port - eliminates clock synchronization overhead between source and sink subsystems |
Pinout & Package
Package: 32-pin Plastic Leaded Chip Carrier (PLCC, J32-1), lead-finish SnPb (EOL as of June 15, 2018), body size 13.8 mm × 13.8 mm, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D0–D8 | Data Input Bus | 9-bit parallel input path; accepts TTL/LVCMOS-compatible signals for loading into FIFO |
| Q0–Q8 | Data Output Bus | 3-state outputs enabled only during valid read cycle; high-impedance when R = HIGH |
| W | Write Enable | Falling-edge triggered; initiates write on next clock edge if FF = HIGH, blocks writes when FF = LOW |
| R | Read Enable | Falling-edge triggered; outputs data on Q0–Q8 if EF = HIGH, holds high-Z if EF = LOW |
| RS | Reset Input | Active-Low synchronous reset; forces both read/write pointers to location zero and sets EF = LOW, FF = HIGH |
| FL/RT | First Load / Retransmit | In single-device mode (XI = GND): RT function-pulse LOW to reset read pointer to start without affecting write pointer |
| XI | Expansion In | Grounded for single-device mode; tied to XO of prior device in depth expansion chains |
| XO/HF | Expansion Out / Half-Full Flag | In single-device mode: HF output goes LOW when >512 words stored; in expansion: pulse signal to next device at last location |
| EF | Empty Flag | Open-drain output; LOW indicates no valid data available for read, inhibits further R operations |
| FF | Full Flag | Open-drain output; LOW indicates no space for new write, inhibits further W operations |
| VCC, GND | Power Supply | Single 3.3 V supply rail; decoupling required within 10 mm of pins per high-speed CMOS layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Simultaneous Read/Write | Enables real-time buffering between independent clock domains (e.g., UART-to-DSP, PCIe-to-FPGA) without arbitration logic |
| Auto-Retransmit (RT) | Resets read pointer to origin on FL/RT pulse, allowing repeat transmission of buffered data without host CPU intervention |
| Expandable Architecture | Supports unlimited depth expansion (daisy-chain via XI/XO) and width expansion (parallel devices) without external address decoding |
| Status Flag Logic | EF, FF, and XO/HF provide immediate, cycle-accurate boundary detection-no polling or software overhead required |
| 9-Bit Data Path | Accommodates 8-bit data + parity or control bit, meeting RS-232/422 framing and telecom protocol requirements |
Applications
| Industrial Serial Bridge | Legacy Bus Rate Matching |
|---|---|
Use Scenario: Bridging a 1 Mbps RS-422 link to a 25 MHz microcontroller bus where transmit/receive rates differ. IC Role / Device Role / Timing Role: Asynchronous FIFO buffer absorbing rate variance; isolates timing domains using EF/FF handshaking. Use Value: Eliminates data loss during burst transfers; enables deterministic latency control via fixed 1,024-word depth. | Use Scenario: Interfacing an ISA-bus peripheral to a modern ARM-based controller with mismatched bus timing. IC Role / Device Role / Timing Role: Dual-port FIFO acting as elastic buffer-accepts ISA writes at ~8 MHz and releases data to ARM at 100+ MHz. Use Value: Removes need for complex wait-state generation or custom ASIC glue logic; simplifies PCB layout with single PLCC device. |
| Telecom Frame Buffer | Test Equipment Data Capture |
Use Scenario: Capturing HDLC frames from T1/E1 line interface before CRC validation and forwarding to DSP. IC Role / Device Role / Timing Role: First-in/first-out storage holding complete frames (≤1,024 bytes) while checksum is computed. Use Value: Guarantees frame integrity with no partial reads/writes; 9-bit width supports 8-bit payload + parity bit per byte. | Use Scenario: High-speed digital pattern generator capturing stimulus-response sequences during ATE testing. IC Role / Device Role / Timing Role: Real-time acquisition buffer accepting parallel test vectors at 40 MHz and releasing them sequentially to analysis logic. Use Value: 15 ns access time ensures minimal capture-to-read latency; EF/FF flags enable precise trigger synchronization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FIFO memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 72V02L25JG8 | Slower 25 ns access time; identical 1,024 × 9 organization, PLCC-32 package, and pinout | Lower maximum operating frequency (~28.5 MHz vs 40 MHz); acceptable where timing margin exists | Select when system clocking allows relaxed tA and lower power consumption is prioritized over speed |
| 72V02L15PG8 | Same 15 ns access time and 1,024 × 9 spec, but in 32-pin PDIP package instead of PLCC | Through-hole mounting; larger footprint and incompatible socket; not drop-in replaceable on PLCC-designed boards | Choose only for prototyping or legacy through-hole systems-requires PCB redesign for PLCC-to-PDIP swap |
Compared with 72V02L15JG8, the 72V02L25JG8 trades 15 ns speed for reduced dynamic power and broader timing margin, while 72V02L15PG8 maintains identical electrical performance but sacrifices surface-mount compatibility and board density.
Availability
72V02L15JG8 is available at Aetrix Electronics and suitable for industrial serial bridges, legacy bus rate matching, telecom frame buffering, and test equipment data capture requiring stable component supply across extended product lifecycles.
Supply support for 72V02L15JG8 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 IDT72V02 family-including 72V02L15JG8-was designed specifically for asynchronous data buffering in rate-mismatched digital systems, targeting telecom, test instrumentation, and industrial control applications requiring deterministic latency and robust boundary signaling.
FAQ
What is the memory capacity and data width of the 72V02L15JG8?
The 72V02L15JG8 provides 1,024 words of storage, each word being 9 bits wide (1,024 × 9). This configuration supports 8-bit data plus a parity or control bit, making it suitable for error-checked serial protocols and industrial communication interfaces where data integrity is critical. The 72V02L15JG8 uses ring-pointer addressing-no external address lines are required.
Does the 72V02L15JG8 support simultaneous read and write operations?
Yes, the 72V02L15JG8 supports fully asynchronous and simultaneous read and write operations. Its dual-port architecture allows independent W and R control signals to operate concurrently without contention, enabling real-time buffering between mismatched data streams. The 72V02L15JG8 uses internal pointers to manage data flow, eliminating the need for external address management or arbitration logic.
What are the operating voltage and temperature specifications for the 72V02L15JG8?
The 72V02L15JG8 operates from a single 3.3 V supply (3.0 V to 3.6 V) and is rated for the industrial temperature range of –40°C to +85°C. This makes it suitable for deployment in harsh environments such as factory automation, outdoor telecom equipment, and transportation control systems where thermal stability and reliability are essential. The 72V02L15JG8 meets all DC and AC electrical specs across this full range.
How does the retransmit (RT) function work on the 72V02L15JG8?
The retransmit function on the 72V02L15JG8 is activated by pulsing the FL/RT pin LOW while XI is grounded (single-device mode). This resets the internal read pointer to the first location without altering the write pointer-enabling repeated reading of the same buffered data sequence. The 72V02L15JG8 requires R and W to remain HIGH during the RT pulse, and the feature is disabled in depth expansion configurations.
Is the 72V02L15JG8 still in production, and what is its packaging type?
The 72V02L15JG8 uses a 32-pin PLCC (J32-1) package with SnPb lead finish, which entered End-of-Life (EOL) with last-time-buy expiring June 15, 2018. While no longer in active production, Aetrix Electronics maintains traceable inventory and supports legacy design continuity. Green (lead-free) variants were available by special order but are not indicated for this specific suffix. The 72V02L15JG8 remains viable for repair, replacement, and long-lifecycle industrial programs.
72V02L15JG8 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:
- 40MHz
- Access Time:
- 15ns
- 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)
72V02L15JG8 FAQ
1.How can I place an order for 72V02L15JG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 72V02L15JG8 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 72V02L15JG8 reliable?
The price and inventory of 72V02L15JG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 72V02L15JG8 is usually 5 days.
3.What payment methods are accepted for 72V02L15JG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 72V02L15JG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 72V02L15JG8?
72V02L15JG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 72V02L15JG8 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 72V02L15JG8?
For technical support, including 72V02L15JG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 72V02L15JG8 requirements.
6.How does Aetrix verify that 72V02L15JG8 is sourced from the original manufacturer or authorized distributors?
All 72V02L15JG8 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 72V02L15JG8 meets industry standards.
7.What is the process for return or replacement of 72V02L15JG8?
All 72V02L15JG8 units undergo pre-shipment inspection (PSI). If there is an issue with 72V02L15JG8, 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 72V02L15JG8 part is unused and in its original packaging.
Return procedure for 72V02L15JG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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