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Renesas 7130SA35PF8
- Part No.:
- 7130SA35PF8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130SA35PF8.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,378
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Product details
Overview
7130SA35PF8 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 simultaneous independent read/write access from left and right ports in real-time communication systems such as digital signal processors interfacing with microcontrollers.
For engineers reviewing the 7130SA35PF8 datasheet, 7130SA35PF8 pinout, 7130SA35PF8 application, or 7130SA35PF8 equivalent, key selection criteria include BUSY flag timing (tBAA ≤ 20ns), port-to-port arbitration priority setup (tAPS = 5ns), dual-port standby current (ISB1 = 25mA typ.), and compatibility with IDT7140SLAVE devices for 16-bit expansion.
Technical Context
The 7130SA35PF8 implements fully asynchronous dual-port operation with separate address, control, and I/O buses for left (L) and right (R) ports. Its on-chip arbitration logic resolves contention when both ports access the same memory location, asserting BUSYL/BUSYR open-drain outputs requiring external pull-up resistors.
It supports port-to-port interrupt signaling via INTL/INTR pins and includes automatic power-down controlled by CEL/CER. The device uses CMOS technology, delivers 550mW typical active power, and features battery backup data retention only in LA variants - not applicable to this SA-grade part.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8-bit wide), enabling compact buffer storage in space-constrained embedded designs |
| Access Time | 35ns max (industrial grade), ensuring deterministic latency for real-time inter-processor communication |
| Supply Voltage | 5.0V ±10%, compatible with standard TTL logic families without level-shifting circuitry |
| Operating Temp | –40°C to +85°C, validated for industrial control and telecom infrastructure applications |
| Active Current | 110mA typ. (both ports active), supporting low-thermal-budget system integration |
| Standby Current | 25mA typ. (ISB1, TTL-level CE inputs), reducing idle power in always-on subsystems |
| Package | 48-pin ceramic flatpack (PF8), offering hermetic sealing and thermal stability for harsh environments |
Pinout & Package
7130SA35PF8 is housed in a 48-pin ceramic flatpack (PF8) package with 0.75″ × 0.75″ body size and 0.11″ height, rated for industrial temperature operation and featuring gold-plated leads for reliable solderability and corrosion resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A9L | Left port address inputs | 10-bit address bus selecting one of 1024 locations for left-side access |
| A0R–A9R | Right port address inputs | Independent 10-bit address bus for concurrent right-side memory access |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit data path supporting read/write operations without direction control pin |
| I/O0R–I/O7R | Right port bidirectional data | Electrically isolated 8-bit data path enabling true parallel port operation |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; deassertion places port in low-power standby mode |
| OEL / OER | Output enable (left/right) | Active-low controls output drivers; high-Z state prevents bus contention during shared-bus use |
| R/WL / R/WR | Read/write control (left/right) | High = read, low = write; determines data flow direction per port independently |
| BUSYL / BUSYR | Arbitration status flags | Open-drain outputs indicating port contention; require external 4.7kΩ pull-up to VCC |
| INTL / INTR | Interrupt request signals | Asynchronous flags set/cleared by specific address writes (e.g., A9–A0 = 3FFh) for inter-port signaling |
| VCC / GND | Power supply terminals | All VCC pins must be decoupled locally with 0.1µF ceramic capacitors; all GND pins tied to common ground plane |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous access to identical addresses without external logic, guaranteeing deterministic BUSY assertion within 20ns (tBAA) |
| Dual independent ports | Enables full-speed, error-free communication between two asynchronous masters (e.g., DSP + MCU) without cycle-stretching or handshake overhead |
| TTL-compatible interface | Eliminates need for level translators when interfacing with legacy 5V microcontrollers or FPGAs |
| Master-only BUSY output | BUSYL/BUSYR are open-drain outputs on 7130SA35PF8 (not inputs), simplifying contention detection in master-slave topologies |
| Port-to-port interrupt capability | Hardware-supported signaling via dedicated INTL/INTR pins reduces software polling overhead in real-time OS environments |
Applications
| Industrial PLC Data Exchange | Digital Signal Processor Buffering |
|---|---|
Use Scenario: Two independent controllers (e.g., motion controller and HMI processor) share sensor data and command buffers in a programmable logic controller chassis. IC Role / Device Role / Timing Role: 7130SA35PF8 acts as MASTER dual-port SRAM, providing zero-wait-state memory access with hardware arbitration to prevent data corruption during concurrent reads/writes. Use Value: Eliminates need for discrete glue logic and software semaphores, reducing BOM cost and firmware complexity while guaranteeing sub-35ns memory coherency. | Use Scenario: A DSP performs real-time FFT processing while a host ARM processor loads new coefficients and retrieves results. IC Role / Device Role / Timing Role: 7130SA35PF8 serves as a ping-pong buffer between DSP (left port) and ARM (right port), with BUSY flags preventing overwrites during coefficient updates. Use Value: Enables deterministic, lock-free data transfer at full 35ns throughput - critical for maintaining real-time audio/video pipeline deadlines. |
| Military Avionics Inter-Processor Link | Telecom Line Card Control Plane |
Use Scenario: Flight control computer and navigation subsystem exchange telemetry and control commands across a radiation-tolerant backplane. IC Role / Device Role / Timing Role: 7130SA35PF8 operates as MASTER SRAM in MIL-PRF-38535 QML-compliant design, leveraging its –55°C to +125°C capable PF8 package and robust arbitration. Use Value: Provides fault-tolerant, single-point-of-failure-free memory sharing essential for DO-254 Level A avionics certification. | Use Scenario: Baseband processor and network processor in a 4G/LTE line card coordinate packet scheduling and radio resource management. IC Role / Device Role / Timing Role: 7130SA35PF8 functions as shared configuration memory with INTL/INTR signaling triggering context switches without CPU intervention. Use Value: Reduces inter-processor interrupt latency to ≤25ns (tINS), accelerating control-plane response time for dynamic spectrum allocation. |
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, 1K × 8, but lacks on-chip arbitration logic and BUSY output; requires external logic for contention resolution | Suitable for simpler dual-CPU systems where software-managed semaphores are acceptable | Select when arbitration logic is implemented in FPGA or when cost sensitivity outweighs arbitration convenience |
| IDT7140SA35PF8 | Same speed/package, but SLAVE-only device: BUSYL/BUSYR are inputs (not outputs); no internal arbitration logic | Must be paired with 7130SA35PF8 as MASTER; cannot operate standalone in arbitration-critical roles | Choose only as companion SLAVE in 16-bit+ memory expansions where 7130SA35PF8 handles arbitration |
Compared with CY7C131-35PC and IDT7140SA35PF8, the 7130SA35PF8 uniquely integrates arbitration logic and open-drain BUSY outputs - eliminating external components required for contention management and enabling true plug-and-play dual-master operation.
Availability
7130SA35PF8 is available at Aetrix Electronics and suitable for industrial automation, avionics, and telecom infrastructure requiring stable component supply, long-term lifecycle support, and MIL-PRF-38535 qualified parts.
Supply support for 7130SA35PF8 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 timing, memory interface, RF, and high-performance computing solutions, now part of Renesas Electronics.
The IDT7130 product line was designed specifically for deterministic, low-latency inter-processor communication in real-time embedded systems requiring hardware-enforced memory coherency without software overhead.
FAQ
What is the maximum operating temperature range for the 7130SA35PF8?
7130SA35PF8 is rated for industrial temperature operation from –40°C to +85°C. This specification is validated across all electrical parameters including access time (35ns max), standby current (ISB1 = 25mA typ.), and BUSY timing (tBAA ≤ 20ns). The ceramic flatpack (PF8) package contributes to thermal stability in convection-cooled enclosures.
Does the 7130SA35PF8 support battery backup data retention?
No, the 7130SA35PF8 does not support battery backup data retention. That feature is exclusive to LA-grade variants (e.g., 7130LA35PF8), which specify VDR = 2.0V minimum and ICCDR ≤ 4000µA at 2V. The 'SA' suffix denotes standard active power characteristics (550mW typ.) without low-voltage retention circuitry.
How does the BUSY arbitration mechanism work on the 7130SA35PF8?
The 7130SA35PF8 uses on-chip arbitration logic that asserts BUSYL or BUSYR (open-drain) when both ports attempt to access the same address. If tAPS = 5ns setup is violated, BUSY asserts on the later-arriving port. Writes to the asserted port are internally inhibited, ensuring data integrity. External pull-up resistors (4.7kΩ to VCC) are mandatory for proper BUSY signal termination.
Can the 7130SA35PF8 be used as a standalone dual-port RAM without a SLAVE device?
Yes, the 7130SA35PF8 functions fully as a standalone 8-bit dual-port SRAM. Its MASTER designation refers to its ability to control arbitration and drive BUSY outputs - not dependency on a SLAVE. The IDT7140SLAVE is optional and only required when expanding to 16-bit or wider data paths using the MASTER/SLAVE architecture.
What package type does the 7130SA35PF8 use, and what are its mechanical dimensions?
7130SA35PF8 uses a 48-pin ceramic flatpack (PF8) package measuring 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 body with gold-plated leads, meeting MIL-STD-883 requirements for moisture resistance and thermal cycling reliability in demanding environments.
7130SA35PF8 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-TQFP (14x14)
7130SA35PF8 FAQ
1.How can I place an order for 7130SA35PF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130SA35PF8 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 7130SA35PF8 reliable?
The price and inventory of 7130SA35PF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130SA35PF8 is usually 5 days.
3.What payment methods are accepted for 7130SA35PF8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130SA35PF8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130SA35PF8?
7130SA35PF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130SA35PF8 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 7130SA35PF8?
For technical support, including 7130SA35PF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130SA35PF8 requirements.
6.How does Aetrix verify that 7130SA35PF8 is sourced from the original manufacturer or authorized distributors?
All 7130SA35PF8 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 7130SA35PF8 meets industry standards.
7.What is the process for return or replacement of 7130SA35PF8?
All 7130SA35PF8 units undergo pre-shipment inspection (PSI). If there is an issue with 7130SA35PF8, 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 7130SA35PF8 part is unused and in its original packaging.
Return procedure for 7130SA35PF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130SA35PF8 Tags
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