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Renesas 7200L12SOG
- Part No.:
- 7200L12SOG
- Manufacturer:
- Renesas
- Category:
- FIFOs Memory
- Package:
- 28-SOIC (0.345", 8.77mm Width)
- Datasheet:
-
7200L12SOG.pdf
- Description:
- IC FIFO ASYNC 256X9 12NS 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,966
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Product details
Overview
IDT7200L12SOG from Renesas Electronics (formerly IDT) is a 256 × 9-bit asynchronous CMOS FIFO memory IC used for rate buffering and data synchronization between mismatched clock domains or bus protocols. It features 12 ns access time, ultra-high-speed operation, dual-port first-in/first-out architecture, and status flags (Empty, Full, Half-Full) to prevent overflow/underflow - deployed in industrial communications controllers and legacy military avionics interface modules.
For engineers reviewing the IDT7200L12SOG datasheet, IDT7200L12SOG pinout, IDT7200L12SOG application, or IDT7200L12SOG equivalent, key selection criteria include its 256-word depth with 9-bit width (supporting parity), 5 V single-supply operation, industrial temperature range (–40°C to +85°C), and compatibility with depth/width expansion architectures for scalable buffering.
Technical Context
This FIFO implements ring-pointer-based sequential read/write without external address management, using independent W (write) and R (read) control lines. Its internal RAM array is 256 × 9 bits, with dedicated EF, FF, and XO/HF flag outputs driven by pointer comparison logic.
The device supports three operating modes: Single Device (XI grounded), Depth Expansion (daisy-chained via XI/XO), and Width Expansion (parallel data buses). Retransmit (RT) capability resets the read pointer to zero while preserving the write pointer - critical for re-sending protocol frames in serial link recovery scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 256 × 9-bit (256 words, 9-bit wide - supports 8 data + 1 parity bit) |
| Access Time (tA) | 12 ns max - enables ≤83 MHz effective throughput in flow-through mode |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V TTL/CMOS logic rails |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded systems |
| Power Consumption | Active: 440 mW max (80 mA @ 5 V); Power-down: 28 mW max (5 mA @ 5 V) |
| Status Flags | EF (Empty), FF (Full), XO/HF (Half-Full or Expansion Out) - real-time buffer occupancy monitoring |
| Retransmit Function | RT input pulses reset read pointer to start address - enables deterministic frame retransmission without write interruption |
Pinout & Package
Package: 28-pin SOIC (SO28-3), surface-mount, green (Pb-free) variant per ordering suffix "G".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| W | Write Enable Input | Falling-edge-triggered write strobe; initiates storage of D0–D8 into next FIFO location if FF = HIGH |
| R | Read Enable Input | Falling-edge-triggered read strobe; outputs Q0–Q8 from current FIFO location if EF = HIGH |
| D0–D8 | Data Inputs | 9-bit parallel input bus; latched on W falling edge - supports parity bit insertion |
| Q0–Q8 | Data Outputs | 9-bit parallel output bus; high-impedance when R = HIGH - enables bus sharing |
| EF, FF, XO/HF | Status Flag Outputs | Open-drain active-low flags: EF=LOW = empty; FF=LOW = full; XO/HF=LOW = half-full (single mode) or expansion pulse (daisy-chain mode) |
| RS | Reset Input | Active-low synchronous reset - sets both read/write pointers to zero; required at power-up before first write |
| FL/RT | Dual-function Input | In single mode: RT (Retransmit); in depth expansion: FL (First Load) - selects device role in chain |
| XI | Expansion In Input | Grounded in single mode; tied to XO of prior device in depth expansion - configures daisy-chain topology |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Dual-Port Operation | Independent W and R clocks allow simultaneous read/write across unrelated timing domains - eliminates inter-clock domain synchronization logic |
| Expandable Architecture | Depth expansion (via XI/XO chaining) and width expansion (parallel devices) support custom FIFO sizes up to 64k × 9 without redesign |
| Auto-Retransmit Capability | Pulsing RT LOW resets read pointer to zero while preserving write pointer - enables repeat transmission of buffered command sequences |
| 9-Bit Data Width with Parity Support | Extra bit accommodates hardware parity generation/checking - essential for error-resilient serial communication links (e.g., MIL-STD-1553, RS-422) |
| MIL-STD-883 Class B Compliance | Qualified for military applications including avionics and ground vehicle control systems requiring extended temperature and reliability validation |
Applications
| Industrial Protocol Bridge | Military Avionics Interface |
|---|---|
Use Scenario: Bridging UART-based sensor subsystems to a 16-bit microcontroller bus with mismatched data rates. IC Role / Device Role / Timing Role: Asynchronous rate-matching FIFO decouples transmitter and receiver clocks, absorbing bursty sensor data while maintaining deterministic MCU read timing. Use Value: Eliminates software polling or complex DMA arbitration; 256-word depth handles worst-case sensor burst without loss under 12 ns latency constraints. | Use Scenario: Buffering command/response packets between flight control computer and remote I/O modules over MIL-STD-1553B bus. IC Role / Device Role / Timing Role: First-in/first-out memory with parity-enabled 9-bit width stores command frames for retransmission on ACK timeout. Use Value: RT pin enables hardware-level frame retry without CPU intervention; EF/FF flags prevent buffer underrun/overflow during high-jitter bus arbitration. |
| Legacy Test Equipment Controller | Industrial PLC Communication Module |
Use Scenario: Interfacing GPIB-controlled instruments to modern USB/Ethernet host systems via FPGA-based bridge. IC Role / Device Role / Timing Role: Synchronizing slow GPIB handshaking (≈1 MB/s) with fast FPGA DMA writes (≥50 MB/s) using dual-clock FIFO architecture. Use Value: 12 ns access time ensures minimal latency penalty; width expansion supports 18-bit GPIB data bus mapping across two IDT7200L12SOG devices. | Use Scenario: Isolating Modbus RTU master polling cycles from field device response variability in distributed I/O racks. IC Role / Device Role / Timing Role: Buffering Modbus request packets from controller CPU and queuing responses from isolated RS-485 transceivers. Use Value: Half-full flag triggers early DMA fetch to prevent response latency spikes; industrial temp rating ensures stable operation in uncooled control cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FIFO memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74V293-12PAG | 256 × 18-bit organization, 3.3 V supply, 12 ns access, LVDS-compatible I/O | Supports wider data paths and lower voltage systems; lacks RT pin and MIL-STD-883 qualification | Choose for modern 3.3 V designs requiring higher bandwidth; not drop-in for 5 V or military environments |
| IDT7200L15SOG | Same 256 × 9 organization and package, but 15 ns access time and lower power consumption (ICC1 ≤ 65 mA) | Relaxed timing margin suitable for cost-sensitive industrial controls where 12 ns is unnecessary | Choose for reduced power or relaxed timing budgets; pin-identical and functionally compatible replacement |
Compared with SN74V293-12PAG and IDT7200L15SOG, the IDT7200L12SOG delivers the fastest access (12 ns) and military qualification - making it optimal for legacy 5 V systems demanding maximum throughput and environmental ruggedness, whereas alternatives trade speed for voltage compatibility or power efficiency.
Availability
IDT7200L12SOG is available at Aetrix Electronics and suitable for industrial protocol bridges, military avionics interfaces, legacy test equipment controllers, and industrial PLC communication modules requiring stable component supply amid end-of-life transitions.
Supply support for IDT7200L12SOG 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, infrastructure, and IoT applications.
IDT7200L12SOG belongs to the legacy IDT72xx family of asynchronous FIFOs, designed specifically for high-reliability rate buffering in mixed-signal and real-time embedded systems where deterministic latency and expandable memory depth are critical.
FAQ
What is the memory depth and data width of the IDT7200L12SOG?
The IDT7200L12SOG provides a fixed 256-word depth with a 9-bit data width (D0–D8), enabling support for 8-bit data plus one parity or control bit - a configuration optimized for error-checked serial communications and legacy bus interfaces where the IDT7200L12SOG is commonly deployed.
Does the IDT7200L12SOG support expansion beyond 256 words?
Yes, the IDT7200L12SOG supports depth expansion via its XI (Expansion In) and XO/HF (Expansion Out) pins, allowing multiple devices to be daisy-chained into larger FIFO arrays - for example, three IDT7200L12SOG devices yield 768 × 9 capacity. This expansion is explicitly documented in the IDT7200L12SOG datasheet functional description and timing diagrams.
What is the purpose of the FL/RT pin on the IDT7200L12SOG?
The FL/RT pin on the IDT7200L12SOG serves dual functions: in Single Device Mode (XI grounded), it acts as Retransmit (RT) to reset the read pointer to zero; in Depth Expansion Mode, it serves as First Load (FL) to designate the head device in the chain - both roles are defined in the IDT7200L12SOG signal descriptions and truth tables.
Is the IDT7200L12SOG compliant with military specifications?
Yes, the IDT7200L12SOG is compliant with MIL-STD-883, Class B, and is listed under Standard Military Drawings #5962-87531 and #5962-89536 - confirming its qualification for use in defense and aerospace applications requiring extended temperature operation and reliability validation, as stated in the IDT7200L12SOG datasheet features section.
What package type and lead finish does the IDT7200L12SOG use?
The IDT7200L12SOG uses a 28-pin SOIC package (SO28-3) with green (Pb-free) lead finish, indicated by the "G" suffix in the part number - consistent with Renesas' RoHS-compliant manufacturing and confirmed in the Ordering Information table of the IDT7200L12SOG datasheet.
7200L12SOG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 7200
- Package/Case:
- 28-SOIC (0.345", 8.77mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Size:
- 2.25K (256 x 9)
- Function:
- Asynchronous
- Data Rate:
- 50MHz
- Access Time:
- 12ns
- Voltage - Supply:
- 4.5 V ~ 5.5 V
- Current - Supply (Max):
- 80mA
- 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:
- 28-SOIC
7200L12SOG FAQ
1.How can I place an order for 7200L12SOG through Aetrix?
Please submit a Request for Quotation (RFQ) for 7200L12SOG 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 7200L12SOG reliable?
The price and inventory of 7200L12SOG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7200L12SOG is usually 5 days.
3.What payment methods are accepted for 7200L12SOG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7200L12SOG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7200L12SOG?
7200L12SOG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7200L12SOG 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 7200L12SOG?
For technical support, including 7200L12SOG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7200L12SOG requirements.
6.How does Aetrix verify that 7200L12SOG is sourced from the original manufacturer or authorized distributors?
All 7200L12SOG 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 7200L12SOG meets industry standards.
7.What is the process for return or replacement of 7200L12SOG?
All 7200L12SOG units undergo pre-shipment inspection (PSI). If there is an issue with 7200L12SOG, 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 7200L12SOG part is unused and in its original packaging.
Return procedure for 7200L12SOG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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