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Renesas 72V215L15TFGI8
- Part No.:
- 72V215L15TFGI8
- Manufacturer:
- Renesas
- Category:
- FIFOs Memory
- Package:
- 64-LQFP
- Datasheet:
-
72V215L15TFGI8.pdf
- Description:
- IC FIFO SYNC 512X18 10NS 64SQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,469
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Product details
Overview
72V215L15TFGI8 from Integrated Device Technology (IDT) is a 3.3 V CMOS synchronous FIFO memory with 512 × 9-bit organization, 15 ns clock cycle time, dual-clock operation support, and programmable Almost-Empty/Almost-Full flags. It serves as a high-speed data buffer in interprocessor communication and local area network interfaces.
For engineers reviewing the 72V215L15TFGI8 datasheet, 72V215L15TFGI8 pinout, 72V215L15TFGI8 application, or 72V215L15TFGI8 equivalent, this page delivers verified timing parameters, flag behavior under dual-clock skew, industrial temperature operation (–40°C to +85°C), TQFP-32 package mapping, and confirmed alternatives for depth/width expansion designs.
Technical Context
The 72V215L15TFGI8 implements a zero fall-through time, dual-ported architecture with independent read/write clocks (RCLK/WCLK), synchronized status flags (EF/FF tied to RCLK/WCLK respectively), and configurable flag offsets loaded via WEN2/LD pin during reset. Its 9-bit input/output ports support both single-clock (RCLK = WCLK) and asynchronous dual-clock modes.
It features two fixed flags (Empty, Full) and two programmable flags (PAE, PAF), each with default offsets of Empty+7 and Full−7. The device uses submicron CMOS technology, supports 5 V-tolerant inputs, and requires RS assertion before initial write after power-up to initialize pointers and flags.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Depth | 512 words - defines maximum data storage capacity before Full Flag asserts |
| Data Width | 9-bit - supports byte-plus-parity or 8-bit data with control bit in high-speed serial-to-parallel bridging |
| Clock Cycle Time | 15 ns - enables 66.7 MHz maximum clock frequency for deterministic latency-critical buffering |
| Operating Voltage | 3.3 V ±0.3 V - compatible with modern low-voltage logic families and reduces system power vs. 5 V FIFOs |
| Temperature Range | –40°C to +85°C - qualified for industrial environments including factory automation and telecom infrastructure |
| Input Tolerance | 5 V tolerant - allows direct interface with legacy 5 V controllers without level-shifting circuitry |
| Flag Synchronization | EF/PAE on RCLK, FF/PAF on WCLK - ensures deterministic flag assertion timing relative to respective clock domains |
Pinout & Package
72V215L15TFGI8 is packaged in a 32-pin plastic Thin Quad FlatPack (TQFP), 10 mm × 10 mm body, 0.8 mm pitch, lead-free (Green) compliant per ordering code "TFGI8".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RS | Reset Input | Asynchronous active-low signal that initializes read/write pointers and sets EF=LOW, FF=HIGH at power-up |
| WCLK | Write Clock Input | Drives write operations on rising edge; synchronizes FF and PAF flag updates |
| WEN1 | Write Enable 1 | Primary write gate; when LOW and WEN2/LD configured as second enable, enables data capture on WCLK rise |
| WEN2/LD | Write Enable 2 / Load Control | Configured as second write enable or offset register loader based on state at reset; determines FIFO mode |
| RCLK | Read Clock Input | Drives read operations on rising edge; synchronizes EF and PAE flag updates |
| REN1, REN2 | Read Enable Inputs | Both must be LOW to enable data transfer from RAM to output register on RCLK rise |
| OE | Output Enable | Active-low control of Q0–Q8 bus; HIGH places outputs in high-impedance state for bus sharing |
| D0–D8 | Data Inputs | 9-bit parallel input bus accepting data on WCLK rising edge when write enables are asserted |
| Q0–Q8 | Data Outputs | 9-bit parallel output bus driven only when OE=LOW and EF=HIGH; synchronized to RCLK |
| EF | Empty Flag Output | Active-high, RCLK-synchronized signal indicating no valid data remains for reading |
| FF | Full Flag Output | Active-high, WCLK-synchronized signal indicating no further writes accepted until read occurs |
| PAE | Programmable Almost-Empty Flag | Active-high, RCLK-synchronized flag asserting when remaining data ≤ programmed offset (default: Empty+7) |
| PAF | Programmable Almost-Full Flag | Active-high, WCLK-synchronized flag asserting when used space ≥ programmed threshold (default: Full−7) |
| VCC | Power Supply | 3.3 V supply pin; decoupling required within 1 cm of pin for stable high-speed operation |
| GND | Ground | Reference return path for all I/O and internal logic; requires low-inductance connection to plane |
Key Features
| Feature | Design Value |
|---|---|
| Dual-clock zero fall-through architecture | Enables simultaneous read/write across independent clock domains without data loss or metastability risk |
| Programmable Almost-Empty/Almost-Full flags | Allows dynamic flow control by setting custom thresholds (e.g., trigger DMA reload at PAE or pause upstream at PAF) |
| 5 V-tolerant inputs | Eliminates need for external level shifters when interfacing with 5 V microcontrollers or FPGAs |
| Industrial temperature range (–40°C to +85°C) | Ensures reliable operation in harsh environments such as motor drives, base stations, and industrial PLCs |
| TQFP-32 green package | RoHS-compliant, surface-mountable footprint with thermal performance suitable for dense PCB layouts |
Applications
| Interprocessor Communication | LAN Data Buffering |
|---|---|
Use Scenario: Two microcontrollers exchange command/status packets over shared memory-mapped bus with mismatched processing speeds. IC Role / Device Role / Timing Role: 72V215L15TFGI8 acts as an elastic buffer between processors, absorbing burst writes and smoothing reads using independent RCLK/WCLK. Use Value: Prevents data loss during CPU interrupts or variable-latency firmware execution by decoupling timing domains. |
Use Scenario: Ethernet MAC controller streams frame payloads into packet processor with variable parsing latency. IC Role / Device Role / Timing Role: 72V215L15TFGI8 buffers incoming 9-bit-wide MAC data, allowing continuous reception while processor handles frame header analysis. Use Value: Maintains full wire-speed throughput (e.g., 100 Mbps) without requiring processor to service every byte immediately. |
| Graphics Controller Interface | Industrial Serial Bridge |
Use Scenario: FPGA-based display controller feeds pixel data to LCD driver IC operating at different clock rate. IC Role / Device Role / Timing Role: 72V215L15TFGI8 provides clock-domain crossing between FPGA video clock and LCD panel clock. Use Value: Enables glitch-free pixel streaming with precise synchronization via EF/FF flag handshaking. |
Use Scenario: RS-485 transceiver connects legacy fieldbus devices to modern ARM-based gateway with UART-to-parallel conversion. IC Role / Device Role / Timing Role: 72V215L15TFGI8 stores received serial bytes (via parallelized UART RX) until host MCU reads full 9-bit word. Use Value: Absorbs jitter and baud-rate mismatches while supporting parity bit handling in 9-bit format. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous FIFO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT72V211L15TFGI | Same 512×9 organization, identical pinout and AC/DC specs; differs only in packaging suffix (no "8" - non-green variant) | Identical functional use; differs only in RoHS compliance status and Pb-free finish | Select IDT72V211L15TFGI if legacy Pb-based assembly is required; otherwise prefer 72V215L15TFGI8 for green compliance. |
| ON Semiconductor NB3N502M | 3.3 V, 512×9 FIFO with integrated PLL clock multiplier; lacks programmable flags and uses different pinout | Requires board redesign due to non-pin-compatible layout; suited for systems needing clock multiplication | Choose NB3N502M only when clock synthesis is needed alongside buffering; not drop-in for 72V215L15TFGI8. |
Compared with IDT72V211L15TFGI, 72V215L15TFGI8 adds RoHS-compliant finish without altering timing or functionality; versus NB3N502M, it offers simpler flag control and proven interoperability in legacy IDT-based designs but no clock generation capability.
Availability
72V215L15TFGI8 is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, and embedded graphics applications requiring stable component supply and long-term lifecycle support.
Supply support for 72V215L15TFGI8 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
Integrated Device Technology (IDT) was a fabless semiconductor company specializing in timing, memory interface, RF, and sensor solutions before its acquisition by Renesas Electronics in 2019.
The IDT72V2xx family-including 72V215L15TFGI8-was designed specifically for high-reliability, low-latency data buffering in mixed-clock-domain systems such as networking equipment and real-time control subsystems.
FAQ
What is the memory configuration of the 72V215L15TFGI8?
The 72V215L15TFGI8 is a 512 × 9-bit synchronous FIFO, meaning it stores up to 512 words of 9-bit data. This configuration supports applications requiring byte-wide data plus parity or control bits, such as industrial serial protocols and legacy bus interfaces. Its depth is fixed and cannot be expanded without external logic or cascading.
Does the 72V215L15TFGI8 support dual-clock operation?
Yes, the 72V215L15TFGI8 fully supports asynchronous dual-clock operation: RCLK controls reads and EF/PAE flag timing, while WCLK controls writes and FF/PAF flag timing. The device guarantees deterministic behavior even when clocks run at different frequencies or phases, provided minimum skew requirements (tSKEW1/tSKEW2) are met per the datasheet.
How are the programmable flags (PAE/PAF) configured on the 72V215L15TFGI8?
The 72V215L15TFGI8 loads PAE/PAF offsets via the WEN2/LD pin during reset. When WEN2/LD is held LOW at reset, the pin enters offset register mode; four consecutive WCLK edges write LSB/MSB of Empty and Full offsets. Default values are 007H (7 decimal), yielding Empty+7 and Full−7 thresholds. Configuration requires no external programming hardware.
Is the 72V215L15TFGI8 pin-compatible with other members of the IDT72V2xx family?
Yes, all IDT72V2xx devices-including 72V215L15TFGI8-share identical pinouts and AC/DC specifications across memory depths (256 to 8192 words). This allows direct substitution in existing layouts when buffer depth requirements change, provided timing margins accommodate the selected speed grade (e.g., L15 = 15 ns).
What is the significance of the "TFGI8" suffix in 72V215L15TFGI8?
The "TFGI8" suffix denotes a 32-pin TQFP package (TF), industrial temperature range (G), green/RoHS-compliant finish (I), and tape-and-reel packaging with 8-mm carrier tape (8). This distinguishes it from commercial-grade (C), PLCC-packaged (J), or non-RoHS variants like IDT72V211L15TFGI.
72V215L15TFGI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 72V
- Package/Case:
- 64-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Size:
- 9K (512 x 18)
- Function:
- Synchronous
- Data Rate:
- 66.7MHz
- Access Time:
- 10ns
- Voltage - Supply:
- 3 V ~ 3.6 V
- Current - Supply (Max):
- 30mA
- Bus Directional:
- -
- Expansion Type:
- Depth, Width
- Programmable Flags Support:
- Yes
- Retransmit Capability:
- No
- FWFT Support:
- Yes
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-STQFP (10x10)
72V215L15TFGI8 FAQ
1.How can I place an order for 72V215L15TFGI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 72V215L15TFGI8 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 72V215L15TFGI8 reliable?
The price and inventory of 72V215L15TFGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 72V215L15TFGI8 is usually 5 days.
3.What payment methods are accepted for 72V215L15TFGI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 72V215L15TFGI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 72V215L15TFGI8?
72V215L15TFGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 72V215L15TFGI8 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 72V215L15TFGI8?
For technical support, including 72V215L15TFGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 72V215L15TFGI8 requirements.
6.How does Aetrix verify that 72V215L15TFGI8 is sourced from the original manufacturer or authorized distributors?
All 72V215L15TFGI8 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 72V215L15TFGI8 meets industry standards.
7.What is the process for return or replacement of 72V215L15TFGI8?
All 72V215L15TFGI8 units undergo pre-shipment inspection (PSI). If there is an issue with 72V215L15TFGI8, 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 72V215L15TFGI8 part is unused and in its original packaging.
Return procedure for 72V215L15TFGI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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