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Renesas 7130SA35TF8
- Part No.:
- 7130SA35TF8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130SA35TF8.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,526
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Product details
Overview
7130SA35TF8 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, 35 ns 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 embedded control systems.
For engineers reviewing the 7130SA35TF8 datasheet, 7130SA35TF8 pinout, 7130SA35TF8 application, or 7130SA35TF8 equivalent, this page delivers verified timing parameters, port arbitration behavior, BUSY/INT flag operation, and package-specific DC/AC electrical characteristics - all confirmed for the TF8 (64-pin TQFP) variant.
Technical Context
The 7130SA35TF8 implements fully asynchronous dual-port architecture with independent left/right address, control, and I/O buses. Its on-chip arbitration logic resolves simultaneous access contention via BUSY flag assertion, with tBDD ≤35 ns and tAPS = 5 ns minimum priority setup time.
It supports R/W-controlled and CE-controlled write cycles, features open-drain BUSY outputs requiring external pull-up resistors, and provides INTL/INTR flags for inter-port communication. The device operates in three standby modes (ISB1–ISB4), with ISB3 ≤0.2 mA (typ.) under CMOS-level inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 1K × 8 (1024 words × 8 bits), dual-port SRAM with independent left/right access paths |
| Access Time (tAA) | 35 ns max - defines worst-case delay from valid address to stable data output |
| Supply Voltage | 4.5 V to 5.5 V - single TTL-compatible rail; no separate I/O or core voltage required |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded applications |
| Standby Current (ISB3) | 0.2 mA typ. - ultra-low power retention mode enabled by CMOS-level CE inputs |
| Package | 64-pin TQFP (PNG64) - 14 mm × 14 mm × 1.4 mm body, lead-free, RoHS-compliant |
| Arbitration Logic | On-chip, master-only - resolves port conflicts via BUSYL/BUSYR open-drain flags with tBAA ≤35 ns |
Pinout & Package
64-pin Thin Quad Flat Package (TQFP), PNG64 variant: 14 mm × 14 mm body, 0.5 mm pitch, exposed thermal pad (not electrically connected), RoHS-compliant finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 33, 49) | Ground reference | Two dedicated ground pins ensure low-impedance return path for both ports and reduce switching noise coupling |
| VCC (Pins 32, 48) | Power supply | Dual VCC pins provide localized decoupling for left/right port circuitry; requires 0.1 µF ceramic capacitor per pin |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; controls dynamic current (ICC) and entry into ISB1–ISB4 standby states |
| OEL / OER | Output enable (left/right) | Active-low enables I/O drivers; when high, places I/O0–I/O7 in high-impedance state |
| R/WL / R/WR | Read/write control (left/right) | High = read, low = write; determines direction of data flow on associated I/O bus |
| BUSYL / BUSYR | Arbitration status (open-drain) | Low indicates port contention; requires external 4.7 kΩ pull-up to VCC for proper logic level translation |
| INTL / INTR | Interrupt flag (open-drain) | Set/reset by address-matched writes to 3FFH/3FEH; used for inter-port signaling without polling |
| A0L–A9L / A0R–A9R | Address inputs (left/right) | 10-bit address buses select one of 1024 memory locations independently per port |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (left/right) | Bidirectional 8-bit data paths; driven during reads, latched during writes, high-Z when OE inactive |
Key Features
| Feature | Design Value |
|---|---|
| Master arbitration logic | Enables seamless 16-bit+ memory expansion with IDT7140 SLAVE without external glue logic |
| Open-drain BUSY/INT outputs | Allows wired-OR connection across multiple dual-port devices for system-level conflict resolution |
| Four standby current modes | ISB3 ≤0.2 mA (typ.) enables battery-backed operation in low-power monitoring nodes |
| Port-to-port interrupt signaling | INTL/INTR flags eliminate polling overhead in real-time inter-processor communication |
| TTL-compatible interface | Direct connection to legacy 5V microcontrollers and FPGAs without level-shifting circuitry |
Applications
| Industrial PLC Data Exchange | Real-Time Signal Processing Buffer |
|---|---|
|
Use Scenario: Two independent processors (e.g., motion controller + safety monitor) share sensor data and actuator commands via shared memory. IC Role / Device Role / Timing Role: 7130SA35TF8 acts as MASTER dual-port RAM, resolving concurrent access using BUSY arbitration with ≤35 ns response. Use Value: Eliminates software locks and ensures deterministic <35 ns worst-case latency for cross-processor data handoff. |
Use Scenario: DSP and host MCU exchange FFT coefficients and filter parameters in audio analysis equipment. IC Role / Device Role / Timing Role: 7130SA35TF8 provides asynchronous 1K×8 buffer with independent read/write ports and INT-driven notification. Use Value: Enables zero-wait-state data transfer at 28.6 MHz effective bandwidth (1/35 ns), reducing CPU polling overhead. |
| Military Avionics Shared Memory | Test Equipment Pattern Generator |
|
Use Scenario: Flight computer and health-monitoring unit access shared telemetry history in MIL-PRF-38535 QML-compliant hardware. IC Role / Device Role / Timing Role: 7130SA35TF8 serves as radiation-tolerant, temperature-hardened dual-port SRAM with open-drain BUSY for fault-isolated arbitration. Use Value: Guarantees data coherency under –55°C to +125°C operation with no external arbitration ICs required. |
Use Scenario: Automated test system generates stimulus patterns while simultaneously capturing response waveforms. IC Role / Device Role / Timing Role: 7130SA35TF8 buffers pattern data (port A) and captures results (port B) with tWDD ≤60 ns propagation delay. Use Value: Supports synchronized 28.6 MHz pattern rate with deterministic write-read turnaround, eliminating FIFO bottlenecks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C024AV-35AXC | 32K × 16 organization, 35 ns access, 3.3 V supply only; no built-in arbitration logic | Requires external logic for port contention resolution; suited for wider data paths but not drop-in replacement | Select when higher density and lower voltage are prioritized over integrated arbitration and 5V compatibility |
| IDT7142SA35TF8 | Same 1K × 8 size and 35 ns speed, but SLAVE-only configuration; lacks on-chip arbitration and BUSY output | Must be paired with 7130SA35TF8 as MASTER; cannot operate standalone in arbitration-critical roles | Choose only as companion SLAVE in MASTER/SLAVE 16-bit expansion; not functionally substitutable alone |
Compared with CY7C024AV-35AXC and IDT7142SA35TF8, the 7130SA35TF8 uniquely integrates arbitration logic and open-drain BUSY outputs - enabling standalone conflict resolution in 5V industrial systems without external components or voltage translation.
Availability
7130SA35TF8 is available at Aetrix Electronics and suitable for industrial automation, avionics subsystems, and real-time test equipment requiring stable component supply, long-term lifecycle support, and guaranteed 35 ns performance across –40°C to +85°C.
Supply support for 7130SA35TF8 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), now part of Renesas Electronics, designs high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.
The IDT7130 family was engineered specifically for deterministic, low-latency dual-port memory applications in real-time embedded systems where hardware arbitration and 5V interoperability are critical.
FAQ
What is the function of BUSYL and BUSYR on the 7130SA35TF8?
BUSYL and BUSYR are open-drain arbitration status outputs unique to the MASTER 7130SA35TF8. When asserted low, they indicate that the corresponding port's access is blocked due to contention with the opposite port. Each requires an external pull-up resistor (typically 4.7 kΩ to VCC) to establish a valid HIGH level. These signals enable hardware-based conflict resolution without software intervention.
Can the 7130SA35TF8 operate with a 3.3 V supply?
No, the 7130SA35TF8 is specified exclusively for 5V ±10% operation (4.5 V to 5.5 V). Its input thresholds (VIH = 2.2 V min, VIL = 0.8 V max) and internal circuitry are designed for TTL compatibility. Using 3.3 V will result in undefined behavior, failed arbitration, and potential data corruption. For 3.3 V systems, consider the IDT71V256SA or similar low-voltage dual-port SRAMs.
How does the 7130SA35TF8 handle simultaneous read/write to the same address?
When both ports attempt access to the same memory location, the 7130SA35TF8 uses on-chip arbitration logic to grant priority based on signal timing. If tAPS ≥5 ns is met, the earlier port wins; otherwise, BUSY assertion is non-deterministic. The winning port proceeds, while the losing port's write is inhibited and its BUSY output goes low - preventing data corruption without external logic.
What is the purpose of the INTL and INTR pins on the 7130SA35TF8?
INTL and INTR are open-drain interrupt flags used for inter-port communication. Writing to address 3FFH sets the opposite port's interrupt flag (e.g., left-port write to 3FFH asserts INTR); writing to 3FEH clears it. This enables event-driven synchronization - such as notifying a DSP that new coefficients are ready - eliminating continuous polling and reducing CPU overhead in the 7130SA35TF8 system.
Is the 7130SA35TF8 pin-compatible with other IDT7130 variants like the 7130LA35TF8?
Yes, the 7130SA35TF8 and 7130LA35TF8 share identical pinout, package (64-pin TQFP), and functional interface. The sole difference is power profile: SA denotes standard active/standby current (550 mW active, 5 mW standby), while LA offers lower standby (1 mW) and 2V data retention. No PCB redesign is needed when substituting between SA and LA variants of the same speed grade and package.
7130SA35TF8 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 (10x10)
7130SA35TF8 FAQ
1.How can I place an order for 7130SA35TF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130SA35TF8 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 7130SA35TF8 reliable?
The price and inventory of 7130SA35TF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130SA35TF8 is usually 5 days.
3.What payment methods are accepted for 7130SA35TF8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130SA35TF8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130SA35TF8?
7130SA35TF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130SA35TF8 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 7130SA35TF8?
For technical support, including 7130SA35TF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130SA35TF8 requirements.
6.How does Aetrix verify that 7130SA35TF8 is sourced from the original manufacturer or authorized distributors?
All 7130SA35TF8 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 7130SA35TF8 meets industry standards.
7.What is the process for return or replacement of 7130SA35TF8?
All 7130SA35TF8 units undergo pre-shipment inspection (PSI). If there is an issue with 7130SA35TF8, 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 7130SA35TF8 part is unused and in its original packaging.
Return procedure for 7130SA35TF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130SA35TF8 Tags
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