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Renesas 7130LA25PFGI8
- Part No.:
- 7130LA25PFGI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130LA25PFGI8.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,143
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Product details
Overview
7130LA25PFGI8 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, 25 ns maximum access time, industrial temperature range (–40°C to +85°C), and battery-backed data retention down to 2.0 V. It enables simultaneous independent read/write access from left and right ports in real-time interprocessor communication systems.
For engineers reviewing the 7130LA25PFGI8 datasheet, 7130LA25PFGI8 pinout, 7130LA25PFGI8 application, or 7130LA25PFGI8 equivalent, this part supports deterministic port-to-port arbitration, BUSY flag signaling, INT/INTR interrupt generation, and low-power standby operation - critical for embedded control, avionics data buffers, and redundant system memory architectures.
Technical Context
The 7130LA25PFGI8 implements fully asynchronous dual-port operation with separate address, data, and control buses per port (left/right). Its on-chip arbitration logic resolves contention when both ports access the same memory location, asserting open-drain BUSYL/BUSYR outputs to stall conflicting writes.
It features TTL-compatible 5V ±10% single-supply operation, supports battery backup with 2.0 V data retention, and delivers 1 mW typical standby power in LA configuration. The device uses CMOS process technology and includes dedicated INTL/INTR flags for cross-port event signaling without software polling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 1K × 8 (1024 words × 8 bits), dual-port SRAM with independent left/right address/data/control interfaces |
| Access Time (max) | 25 ns - guarantees worst-case read latency under industrial temperature and voltage conditions |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5V TTL logic families and legacy industrial power rails |
| Data Retention Voltage | 2.0 V - enables battery backup operation during main power loss without data corruption |
| Standby Current (typ) | 1 mA - ultra-low ISB3 full-standby current with CMOS-level inputs, critical for low-power hold modes |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade reliability in harsh environments |
| Package | 64-pin STQFP (Surface-Mount Thin Quad Flat Package), 10 mm × 10 mm footprint |
Pinout & Package
7130LA25PFGI8 is housed in a 64-pin STQFP (Surface-Mount Thin Quad Flat Package) with 0.5 mm pitch, 10 mm × 10 mm body size, and exposed thermal pad. Pin functions are validated per IDT datasheet revision Jul.12.21, Figure drw 05.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 33, 49) | Ground reference | Two dedicated ground pins ensure stable return path for dual-port I/O and internal logic |
| VCC (Pins 32, 48) | Power supply | Dual VCC pins reduce IR drop and improve noise immunity across high-speed switching |
| CEL / CER | Chip Enable (Left/Right) | Active-low enables respective port; controls dynamic/standby current states independently |
| OEL / OER | Output Enable (Left/Right) | Active-low enables tri-state output drivers; allows bus sharing without external logic |
| R/WL / R/WR | Read/Write Control (Left/Right) | Active-high = read, active-low = write; defines direction of data flow per port |
| BUSYL / BUSYR | Arbitration Flag Output (Left/Right) | Open-drain outputs requiring external pull-up; signal write contention to stall opposing port |
| INTL / INTR | Interrupt Flag (Left/Right) | Active-low flags indicate cross-port events (e.g., write to address 0x3FE/0x3FF) for hardware-triggered ISR |
| A0L–A9L / A0R–A9R | Address Inputs (Left/Right) | 10-bit address buses support full 1K addressing per port; no shared address lines |
| I/O0L–I/O7L / I/O0R–I/O7R | Bidirectional Data (Left/Right) | 8-bit parallel data paths; internally isolated to prevent bus contention between ports |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous same-address access deterministically via BUSY flag assertion - eliminates need for external priority encoder or glue logic |
| Open-drain BUSY outputs | Enable wired-OR arbitration across multiple dual-port RAMs in multi-master systems without level-shifting or contention risk |
| Port-to-port interrupt signaling | Hardware-generated INTL/INTR pulses allow zero-latency interprocessor notification without polling or shared registers |
| 2.0 V data retention | Preserves memory contents during brown-out or battery switchover - verified at TA = +25°C, not production tested but guaranteed |
| Independent port power management | Each port enters low-power standby (ISB2/ISB4) when CE is high, enabling asymmetric power gating in asymmetric workloads |
Applications
| Real-Time Interprocessor Communication | Avionics Data Buffering |
|---|---|
Use Scenario: Two microcontrollers exchange sensor and control data via shared memory without software handshaking. IC Role / Device Role / Timing Role: MASTER dual-port SRAM acting as synchronized mailbox with hardware arbitration and interrupt-driven event signaling. Use Value: Eliminates CPU overhead from polling or semaphores; 25 ns access ensures sub-microsecond inter-core latency. | Use Scenario: Flight control computer stores telemetry snapshots and receives updated navigation parameters during power transitions. IC Role / Device Role / Timing Role: Battery-backed memory buffer maintaining state integrity during 5V rail interruption. Use Value: 2.0 V data retention preserves critical flight data across 100+ ms brown-outs per MIL-STD-704 compliance. |
| Redundant System Memory | Industrial PLC Dual-CPU Interface |
Use Scenario: Primary and backup controllers monitor each other's health and synchronize state using mirrored memory regions. IC Role / Device Role / Timing Role: Arbitrated dual-port RAM providing atomic read-modify-write capability for failover status flags. Use Value: BUSY flag prevents race conditions during concurrent updates; 25 ns timing enables <1 µs fault detection response. | Use Scenario: Programmable logic controller runs safety-critical motion control on one CPU and HMI diagnostics on another. IC Role / Device Role / Timing Role: Deterministic memory interface enabling lock-free data exchange between safety and non-safety domains. Use Value: Independent left/right CE/OE control allows asymmetric bandwidth allocation - e.g., 80% to motion engine, 20% to diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C131-25JC | 5V, 1K × 8, 25 ns, 48-pin DIP; no built-in arbitration or BUSY logic; requires external priority circuitry | Lacks hardware arbitration and interrupt flags - increases BOM count and PCB area for equivalent functionality | Select when cost sensitivity outweighs design simplicity and deterministic timing requirements |
| AS7C31025B-25JIN | 3.3V core, 1K × 8, 25 ns, 48-pin SOJ; no battery retention, no BUSY/INT signals; CMOS I/O only | Not pin-compatible; incompatible voltage domain; no arbitration support - unsuitable for 5V industrial systems | Consider only for new 3.3V designs where legacy 5V compatibility and hardware arbitration are unnecessary |
Compared with CY7C131-25JC and AS7C31025B-25JIN, the 7130LA25PFGI8 uniquely integrates arbitration, interrupt, and 2.0 V data retention in a single 5V-compatible package - reducing system-level complexity and improving real-time determinism without external components.
Availability
7130LA25PFGI8 is available at Aetrix Electronics and suitable for real-time interprocessor communication, avionics data buffering, and redundant system memory applications requiring stable component supply, long-term industrial lifecycle support, and traceable sourcing.
Supply support for 7130LA25PFGI8 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 timing, memory interface, and RF solutions, now part of Renesas Electronics.
The 7130LA series belongs to IDT's legacy dual-port SRAM product line, designed specifically for deterministic, low-latency interprocessor communication in industrial, aerospace, and military systems requiring hardware-enforced arbitration and battery-backed operation.
FAQ
What is the maximum access time specification for the 7130LA25PFGI8?
The 7130LA25PFGI8 has a maximum access time of 25 ns under industrial temperature (–40°C to +85°C) and supply voltage (4.5 V to 5.5 V) conditions. This value is specified for tAA (address access time), tACE (chip enable access time), and tAOE (output enable access time), ensuring worst-case read latency across its qualified operating range.
Does the 7130LA25PFGI8 support battery backup operation?
Yes, the 7130LA25PFGI8 supports battery backup operation with guaranteed data retention down to 2.0 V (VDR), as specified in Table 07 of the datasheet. This feature is exclusive to LA versions and enables memory state preservation during main power loss - critical for avionics and industrial control applications.
How does arbitration work between ports on the 7130LA25PFGI8?
The 7130LA25PFGI8 implements on-chip arbitration logic that asserts BUSYL or BUSYR (open-drain outputs) when both ports attempt to access the same memory address. If arbitration priority setup time (tAPS = 5 ns) is violated, one BUSY line goes low to stall the lower-priority write - eliminating race conditions without external logic.
What is the function of the INTL and INTR pins on the 7130LA25PFGI8?
INTL and INTR are active-low interrupt flags used for port-to-port event signaling. Writing to address 0x3FE sets the opposite port's interrupt flag; writing to 0x3FF clears it. These hardware flags enable zero-latency interprocessor notifications without polling, reducing CPU overhead in real-time systems using the 7130LA25PFGI8.
Is the 7130LA25PFGI8 pin-compatible with the 7140LA25PFGI8 slave device?
No, the 7130LA25PFGI8 (MASTER) and 7140LA25PFGI8 (SLAVE) are not pin-compatible. While both use the same 64-pin STQFP package, their pin functions differ significantly - e.g., BUSYL/BUSYR are outputs on the 7130LA25PFGI8 but inputs on the 7140LA25PFGI8, and INTL/INTR roles are inverted. System design must account for these functional differences.
7130LA25PFGI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 25ns
- Access Time:
- 25 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)
7130LA25PFGI8 FAQ
1.How can I place an order for 7130LA25PFGI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130LA25PFGI8 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 7130LA25PFGI8 reliable?
The price and inventory of 7130LA25PFGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130LA25PFGI8 is usually 5 days.
3.What payment methods are accepted for 7130LA25PFGI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130LA25PFGI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130LA25PFGI8?
7130LA25PFGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130LA25PFGI8 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 7130LA25PFGI8?
For technical support, including 7130LA25PFGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130LA25PFGI8 requirements.
6.How does Aetrix verify that 7130LA25PFGI8 is sourced from the original manufacturer or authorized distributors?
All 7130LA25PFGI8 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 7130LA25PFGI8 meets industry standards.
7.What is the process for return or replacement of 7130LA25PFGI8?
All 7130LA25PFGI8 units undergo pre-shipment inspection (PSI). If there is an issue with 7130LA25PFGI8, 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 7130LA25PFGI8 part is unused and in its original packaging.
Return procedure for 7130LA25PFGI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130LA25PFGI8 Tags
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