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Renesas 7130SA35PFI8
- Part No.:
- 7130SA35PFI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130SA35PFI8.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,773
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Product details
Overview
7130SA35PFI8 from IDT (Integrated Device Technology) is a high-speed 1K × 8 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, 35ns maximum access time, TTL-compatible 5V ±10% supply, and industrial temperature range (–40°C to +85°C). It enables error-free 16-bit-or-wider memory expansion when paired with IDT7140 SLAVE devices in real-time control systems requiring concurrent read/write access.
For engineers reviewing the 7130SA35PFI8 datasheet, 7130SA35PFI8 pinout, 7130SA35PFI8 application, or 7130SA35PFI8 equivalent, this page delivers verified timing parameters, BUSY/INT arbitration behavior, dual-port power states (550mW active / 5mW standby), package-specific pin mapping for 48-pin ceramic flatpack, and validated alternatives for MASTER dual-port SRAM replacement in deterministic embedded memory subsystems.
Technical Context
The 7130SA35PFI8 implements fully asynchronous dual-port operation with independent left/right address, control, and I/O buses. Its on-chip arbitration logic resolves port contention via BUSY flag assertion-BUSYL/BUSYR are open-drain outputs requiring external pull-ups, and tBDD (BUSY disable to valid data) is 35ns max at 35ns speed grade.
It supports MASTER-only features: automatic port-to-port interrupt generation (INTL/INTR), battery-backed data retention only in LA variants (not applicable here), and seamless 16-bit expansion using IDT7140 SLAVE devices without external logic. CE-controlled and R/W-controlled write cycles are both supported with distinct timing constraints (tWC = 35ns, tWP = 25ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8-bit wide), enabling compact dual-access buffer storage |
| Access Time | 35ns max - guarantees deterministic latency for real-time control loop execution |
| Supply Voltage | 5.0V ±10% - compatible with legacy TTL and 5V microcontroller buses |
| Operating Temp | –40°C to +85°C - qualified for industrial automation and motor drive environments |
| Active Current | 110mA typ. (ICC) - defines thermal budget for densely packed PCB layouts |
| Standby Current | 25mA typ. (ISB1, both ports disabled) - enables low-power sleep modes in battery-assisted systems |
| Bus Interface | Two independent TTL-compatible ports (left/right) - permits simultaneous host/DSP access without arbitration firmware |
Pinout & Package
7130SA35PFI8 is packaged in a 48-pin ceramic flatpack (FP48), body size ≈ 0.75″ × 0.75″ × 0.11″, with 2×24 staggered leads and index mark at Pin 1. All VCC pins require local decoupling; all GND pins must be solidly connected to ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24, 25, 48) | Ground reference | Four dedicated ground connections reduce ground bounce during dual-port switching |
| VCC (Pins 23, 26) | Power supply | Dual VCC pins minimize IR drop across high-current read/write transitions |
| CEL / CER | Chip enable (left/right) | Independent chip select allows selective port activation without affecting other port's state |
| OEL / OER | Output enable (left/right) | Controls tri-state of I/O bus per port - critical for bus sharing in multi-master systems |
| R/WL / R/WR | Read/write direction (left/right) | Asynchronous control: HIGH = read, LOW = write - no clock required |
| BUSYL / BUSYR | Arbitration flag (open-drain) | Indicates port contention; requires external 4.7kΩ pull-up to VCC for proper logic level |
| INTL / INTR | Interrupt request (open-drain) | Signals inter-port event (e.g., write completion); also requires pull-up resistor |
| A0L–A9L / A0R–A9R | Address inputs (left/right) | 10-bit addressing per port - supports full 1K memory map independently |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O bidirectional (left/right) | True dual-port data path - no multiplexing or direction control needed |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Eliminates need for external priority encoder or glue logic in MASTER configuration |
| Open-drain BUSY/INT outputs | Enables wired-OR interrupt aggregation across multiple dual-port devices on shared lines |
| Full asynchronous operation | Removes clock tree design complexity and jitter sensitivity in mixed-signal systems |
| MASTER/SLAVE expandability | Permits 16-bit+ data width scaling using IDT7140 without cycle penalty or timing skew |
| TTL-compatible voltage levels | Direct interface with legacy 8051, Z80, and DSP families without level-shifting circuitry |
Applications
| Industrial PLC I/O Buffer | Digital Signal Processor Co-processor Memory |
|---|---|
Use Scenario: Real-time I/O scanning in programmable logic controllers where ladder logic execution and fieldbus communication occur concurrently. IC Role / Device Role / Timing Role: MASTER dual-port SRAM acts as deterministic handshake buffer between CPU and fieldbus ASIC, absorbing burst writes while servicing scan reads. Use Value: 35ns access ensures sub-10µs I/O update latency; BUSY arbitration prevents data corruption during overlapping access windows. | Use Scenario: Shared memory between main controller and dedicated DSP in motor control drives performing PWM waveform synthesis and current loop regulation. IC Role / Device Role / Timing Role: Provides zero-wait-state memory space accessible by both ARM host and C6000 DSP core without software semaphore overhead. Use Value: Asynchronous dual-port eliminates synchronization delays; 550mW active power supports thermal management in sealed enclosures. |
| Avionics Data Acquisition Buffer | Medical Imaging Frame Store |
Use Scenario: High-integrity sensor fusion in flight control computers where ADC samples and navigation calculations must share memory without race conditions. IC Role / Device Role / Timing Role: MASTER device coordinates time-critical sampling (via one port) and post-processing (via second port) under DO-254 compliance. Use Value: MIL-PRF-38535 QML-compliant variant available; BUSY-driven arbitration meets deterministic timing requirements for safety-critical paths. | Use Scenario: Real-time buffering of ultrasound or MRI pixel streams between acquisition front-end and image reconstruction engine. IC Role / Device Role / Timing Role: Dual-port architecture allows continuous streaming into one port while reconstruction algorithm reads completed frames from the other. Use Value: 1K × 8 capacity matches common line buffers; 35ns access sustains >28MB/s sustained throughput for HD video-rate imaging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C131-35PC | 35ns access, 5V, 1K × 8, but lacks on-chip arbitration logic and BUSY/INT signals | Requires external logic for port contention resolution; not drop-in for MASTER topology | Select only if arbitration handled in FPGA or if SLAVE-only usage suffices |
| IDT7140SA35PFI8 | Same speed/package, but SLAVE-only: BUSY pins are inputs, no arbitration logic, no INT generation | Cannot operate standalone as MASTER; designed exclusively for 16-bit expansion with 7130 | Use only as companion SLAVE in 16-bit systems; not functionally interchangeable |
Compared with CY7C131-35PC and IDT7140SA35PFI8, the 7130SA35PFI8 uniquely integrates arbitration and interrupt signaling-enabling true autonomous dual-port coordination without external components, making it irreplaceable in MASTER-based deterministic memory architectures.
Availability
7130SA35PFI8 is available at Aetrix Electronics and suitable for industrial PLCs, avionics data loggers, and medical imaging subsystems requiring stable component supply, long-term lifecycle support, and MIL/IND-grade reliability.
Supply support for 7130SA35PFI8 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
IDT (Integrated Device Technology) is a fabless semiconductor company specializing in high-performance memory, timing, and interface solutions, now part of Renesas Electronics.
The IDT7130 product line was engineered for deterministic dual-access memory in real-time control systems, emphasizing hardware arbitration, low-latency timing, and industrial/military environmental robustness.
FAQ
What is the maximum access time specified for the 7130SA35PFI8?
The 7130SA35PFI8 has a maximum access time of 35ns, measured as tAA (address access time), tACE (chip enable access time), and tAOE (output enable access time) under commercial and military temperature ranges. This value is guaranteed across the full industrial operating range (–40°C to +85°C) and defines the worst-case delay from valid address/enable to stable output data. The 7130SA35PFI8 achieves this performance using CMOS high-speed fabrication and optimized internal decoding paths.
Does the 7130SA35PFI8 support battery backup data retention?
No, the 7130SA35PFI8 does not support battery backup data retention. That feature is exclusive to the LA (low-power) variant (e.g., 7130LA35PFI8), which specifies 2.0V data retention and 100–4000µA retention current. The SA suffix denotes standard active power profile (550mW typical active, 5mW standby), with no VDR specification or retention waveform defined in its datasheet. For battery-backed operation, the 7130LA35PFI8 must be selected instead of the 7130SA35PFI8.
How are BUSY and INT pins implemented on the 7130SA35PFI8?
The 7130SA35PFI8 implements BUSYL, BUSYR, INTL, and INTR as open-drain outputs requiring external pull-up resistors (typically 4.7kΩ to VCC). BUSY signals indicate port contention - asserted LOW when the opposite port initiates conflicting access to the same address. INT signals generate inter-port interrupts (e.g., INTL set by right-port write to address 3FFH). These outputs cannot be driven HIGH internally; their logic HIGH state depends entirely on the external pull-up. This design enables wired-OR connection of multiple 7130SA35PFI8 devices on shared interrupt or BUSY busses.
Can the 7130SA35PFI8 operate as a standalone dual-port RAM without a SLAVE device?
Yes, the 7130SA35PFI8 functions fully as a standalone 8-bit dual-port SRAM with independent left and right ports, complete arbitration, and interrupt capability. Its MASTER designation refers to its ability to coordinate with IDT7140 SLAVE devices for wider data buses - not a dependency. In standalone mode, it supports concurrent read/write operations, BUSY flag arbitration, and port-to-port interrupts without any external components. The 7130SA35PFI8 requires no IDT7140 to operate; the SLAVE pairing is optional for 16-bit expansion only.
What package type is used for the 7130SA35PFI8, and what are its mechanical dimensions?
The 7130SA35PFI8 uses a 48-pin ceramic flatpack (FP48) package, with body dimensions approximately 0.75 inch × 0.75 inch × 0.11 inch (19.05 mm × 19.05 mm × 2.79 mm). It features a hermetically sealed ceramic construction, metal lid, and staggered lead arrangement with Pin 1 identified by a corner notch. This package provides superior thermal stability and moisture resistance compared to plastic DIP or LCC variants, making it suitable for high-reliability industrial and aerospace applications where the 7130SA35PFI8 is deployed.
7130SA35PFI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 8Kbit
- Memory Organization:
- 1K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 35ns
- Access Time:
- 35 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-TQFP (14x14)
7130SA35PFI8 FAQ
1.How can I place an order for 7130SA35PFI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130SA35PFI8 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 7130SA35PFI8 reliable?
The price and inventory of 7130SA35PFI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130SA35PFI8 is usually 5 days.
3.What payment methods are accepted for 7130SA35PFI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130SA35PFI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130SA35PFI8?
7130SA35PFI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130SA35PFI8 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 7130SA35PFI8?
For technical support, including 7130SA35PFI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130SA35PFI8 requirements.
6.How does Aetrix verify that 7130SA35PFI8 is sourced from the original manufacturer or authorized distributors?
All 7130SA35PFI8 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 7130SA35PFI8 meets industry standards.
7.What is the process for return or replacement of 7130SA35PFI8?
All 7130SA35PFI8 units undergo pre-shipment inspection (PSI). If there is an issue with 7130SA35PFI8, 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 7130SA35PFI8 part is unused and in its original packaging.
Return procedure for 7130SA35PFI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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