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Renesas 7130SA55PFI
- Part No.:
- 7130SA55PFI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130SA55PFI.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,608
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Product details
Overview
7130SA55PFI from IDT is a high-speed 1K × 8 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, 55 ns maximum read/write cycle time, TTL-compatible 5 V ±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 7130SA55PFI datasheet, 7130SA55PFI pinout, 7130SA55PFI application, or 7130SA55PFI equivalent, this page delivers verified timing parameters, port arbitration behavior, BUSY/INT flag operation, and package-specific DC/AC electrical characteristics required for deterministic dual-port memory integration in avionics data buffers, industrial PLC I/O modules, and telecom line-card controllers.
Technical Context
The 7130SA55PFI implements fully asynchronous dual-port access with independent left/right address, control, and I/O buses. Its on-chip arbitration logic resolves contention via BUSY output assertion-BUSYL and BUSYR are open-drain outputs requiring external pull-up resistors-and supports priority-based write inhibition when address matches occur across ports.
It features dedicated INTL/INTR interrupt flags for inter-port communication, R/W-controlled and CE-controlled write cycles, and three standby modes (TTL-level, CMOS-level, full power-down) with ISB1 = 20 mA (typ), ISB3 = 1.0 µA (typ) at 5 V. Data retention is not supported-only LA variants provide 2 V battery backup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 1K × 8 bits (1024 words × 8-bit wide), two independent asynchronous ports |
| Access Time (tAA) | 55 ns max - defines minimum address valid-to-data-valid delay for reliable read setup |
| Read Cycle Time (tRC) | 55 ns max - constrains minimum interval between successive read operations on same port |
| Write Cycle Time (tWC) | 55 ns max - sets shortest allowable time between consecutive write initiations on one port |
| Supply Voltage | 4.5 V to 5.5 V - requires single 5 V ±10% rail; no separate I/O or core voltage rails |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments without derating |
| Standby Current (ISB1) | 20 mA typ - current draw when both chip enables (CEL/CER) are high, critical for low-power idle states |
Pinout & Package
7130SA55PFI is packaged in a 48-pin ceramic flatpack (FP48) with 0.75″ × 0.75″ body size and side-brazed leads. Pin assignments are identical across FP48, LC48, and PDG48 packages per IDT documentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24, 25, 48) | Ground reference | Four dedicated ground pins reduce ground bounce and improve noise immunity during simultaneous port access |
| VCC (Pins 23, 26) | Power supply | Dual VCC pins ensure stable 5 V distribution across die; must be decoupled locally with 0.1 µF ceramics |
| CEL / CER | Chip enable (left/right) | Active-low enables for respective ports; deassertion places port in high-Z and low-power state |
| OEL / OER | Output enable (left/right) | Active-low controls I/O bus drivers; allows reads without disabling chip enable |
| R/WL / R/WR | Read/write direction (left/right) | High = read, low = write; determines data flow direction on I/O lines during active cycles |
| BUSYL / BUSYR | Arbitration status (left/right) | Open-drain outputs indicating port contention; require external 4.7 kΩ pull-up to VCC |
| INTL / INTR | Interrupt flag (left/right) | Active-low open-drain signals used for inter-port handshaking and event notification |
| A0L–A9L / A0R–A9R | Address inputs (left/right) | 10-bit address buses (0–1023) for independent memory addressing per port |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (left/right) | Bidirectional 8-bit data paths; high-impedance when OE or CE inactive |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous access to same address without external logic; asserts BUSY to block conflicting writes |
| Master-only BUSY output | BUSYL/BUSYR are outputs only on 7130; eliminates need for external BUSY gating in MASTER/SLAVE topologies |
| Port-to-port interrupt signaling | INTL/INTR flags support hardware-triggered synchronization between processors or DMA engines sharing memory |
| Three-tier standby power management | Supports ISB1 (20 mA), ISB2 (40 mA), and ISB3 (1.0 µA) modes-enables dynamic power scaling based on port activity |
| TTL-compatible interface | Direct connection to 5 V microcontrollers, FPGAs, and ASICs without level-shifting circuitry |
Applications
| Avionics Data Buffering | Industrial PLC I/O Module |
|---|---|
Use Scenario: Real-time acquisition of sensor telemetry and actuator commands in flight control computers where deterministic latency is mandatory. IC Role / Device Role / Timing Role: MASTER dual-port SRAM acts as shared buffer between safety-critical flight processor (left port) and redundant monitoring unit (right port). Use Value: 55 ns tRC ensures sub-100 ns round-trip data exchange; on-chip arbitration prevents data corruption during concurrent read/write attempts. | Use Scenario: High-speed exchange of ladder logic state variables and fieldbus packet data in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Dual-port interface between ARM-based main CPU (right port) and isolated I/O ASIC (left port) operating at different clock domains. Use Value: INTL/INTR flags eliminate polling overhead; BUSY-driven write blocking guarantees atomic updates to shared configuration registers. |
| Telecom Line Card Controller | Medical Imaging Frame Store |
Use Scenario: Packet buffering in TDM-over-IP gateway cards where voice/data streams must be synchronized across multiple processing engines. IC Role / Device Role / Timing Role: MASTER SRAM provides zero-wait-state memory for DSP (left port) and network processor (right port) accessing common header tables. Use Value: 55 ns access enables full utilization of 100 Mbps serial links; CE-controlled write cycles simplify timing closure in multi-clock-domain designs. | Use Scenario: Temporary storage of uncompressed DICOM image frames during CT/MRI scan acquisition before compression and transfer. IC Role / Device Role / Timing Role: Dual-port buffer isolates high-bandwidth ADC capture engine (left port) from slower JPEG encoder (right port). Use Value: Asynchronous operation prevents pipeline stalls; 48-pin FP48 package meets hermetic sealing requirements for medical-grade PCB assemblies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C131-55JC | 55 ns access, 1K × 8, but lacks on-chip arbitration logic and BUSY outputs; requires external glue logic for contention resolution | Suitable for simpler dual-processor systems without strict coherency requirements | Select when cost sensitivity outweighs need for deterministic arbitration and board space is available for discrete logic |
| IDT7140SA55PFI | Same speed grade and package, but SLAVE-only: BUSY pins are inputs only; no arbitration logic; cannot operate standalone | Must be paired with 7130SA55PFI in MASTER/SLAVE configuration for 16-bit expansion | Choose only as companion device to expand data bus width-never as direct functional replacement for 7130SA55PFI |
Compared with CY7C131-55JC and IDT7140SA55PFI, the 7130SA55PFI uniquely integrates arbitration, BUSY signaling, and interrupt generation in a single MASTER device-reducing BOM count, eliminating timing-critical external logic, and enabling guaranteed atomic memory updates in safety-critical systems.
Availability
7130SA55PFI is available at Aetrix Electronics and suitable for avionics data buffering, industrial PLC I/O modules, and telecom line card controllers requiring stable component supply, long-term lifecycle support, and traceable sourcing for Class III electronics.
Supply support for 7130SA55PFI 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 semiconductor company specializing in timing, memory interface, RF, and sensor solutions, now part of Renesas Electronics.
The IDT7130 product line delivers high-speed dual-port SRAMs designed for deterministic, contention-free memory sharing between heterogeneous processors in real-time embedded systems.
FAQ
What is the maximum operating temperature range for the 7130SA55PFI?
The 7130SA55PFI is rated for industrial temperature operation from –40°C to +85°C. This range is validated across all AC and DC electrical specifications in the datasheet, including 55 ns timing parameters and standby current limits. It does not support military-grade –55°C to +125°C operation-that requires the 7130MA variant.
Does the 7130SA55PFI support battery backup data retention?
No, the 7130SA55PFI does not support battery backup data retention. Only LA-suffixed variants (e.g., 7130LA55PFI) include this feature, guaranteeing data retention at 2.0 V down to 100 µA typical ICCDR. The 'SA' suffix denotes standard active power profile without retention capability.
How are BUSY signals used in the 7130SA55PFI arbitration scheme?
In the 7130SA55PFI, BUSYL and BUSYR are open-drain outputs that assert low when address contention occurs on the opposite port. They require external 4.7 kΩ pull-up resistors to VCC. When BUSYL is low, writes to the left port are internally inhibited; when BUSYR is low, right-port writes are blocked-ensuring deterministic resolution without software intervention.
Can the 7130SA55PFI operate with a 3.3 V supply?
No, the 7130SA55PFI requires a 5 V ±10% supply (4.5 V to 5.5 V) and is not 3.3 V tolerant. Its input thresholds (VIH = 2.2 V min, VIL = 0.8 V max) and output drive strength are specified only for 5 V operation. Using 3.3 V violates absolute maximum ratings and will result in undefined functionality or damage.
What package type is used for the 7130SA55PFI?
The 7130SA55PFI is supplied in a 48-pin ceramic flatpack (FP48) package with 0.75″ × 0.75″ body size and side-brazed leads. This hermetically sealed package meets stringent reliability requirements for industrial and avionics applications, and shares pinout compatibility with LC48 and PDG48 variants.
7130SA55PFI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Tray
- 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:
- 55ns
- Access Time:
- 55 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)
7130SA55PFI FAQ
1.How can I place an order for 7130SA55PFI through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130SA55PFI 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 7130SA55PFI reliable?
The price and inventory of 7130SA55PFI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130SA55PFI is usually 5 days.
3.What payment methods are accepted for 7130SA55PFI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130SA55PFI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130SA55PFI?
7130SA55PFI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130SA55PFI 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 7130SA55PFI?
For technical support, including 7130SA55PFI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130SA55PFI requirements.
6.How does Aetrix verify that 7130SA55PFI is sourced from the original manufacturer or authorized distributors?
All 7130SA55PFI 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 7130SA55PFI meets industry standards.
7.What is the process for return or replacement of 7130SA55PFI?
All 7130SA55PFI units undergo pre-shipment inspection (PSI). If there is an issue with 7130SA55PFI, 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 7130SA55PFI part is unused and in its original packaging.
Return procedure for 7130SA55PFI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130SA55PFI Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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