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Renesas 7130LA25JGI
- Part No.:
- 7130LA25JGI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7130LA25JGI.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,466
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Product details
Overview
7130LA25JGI 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, 1 mA typical standby current, and battery-backed data retention down to 2 V. It enables simultaneous independent read/write access from left and right ports in real-time embedded control systems requiring deterministic memory contention resolution.
For engineers reviewing the 7130LA25JGI datasheet, 7130LA25JGI pinout, 7130LA25JGI application, or 7130LA25JGI equivalent, this page delivers verified electrical specs, port-to-port timing constraints, BUSY/INT arbitration behavior, and industrial-temperature packaging details critical for dual-processor interlock, video frame buffering, and military-grade avionics memory subsystems.
Technical Context
The 7130LA25JGI implements fully asynchronous dual-port operation with separate address, data, and control lines per port (A0L–A9L/I/O0L–I/O7L/CEL/OEL/R/WL/BUSYL/INTL on left; A0R–A9R/I/O0R–I/O7R/CER/OER/R/WR/BUSYR/INTR on right). Its on-chip arbitration logic resolves port conflicts via open-drain BUSY outputs requiring external pull-ups, and supports interrupt flagging between ports using dedicated INTL/INTR pins.
It operates from a single 5.0 V ±10% supply across –40°C to +85°C, features TTL-compatible I/O, and includes automatic power-down controlled by CE/CER. The LA variant guarantees 2 V data retention with ≤100 µA ICCDR at 25°C, distinguishing it from SA versions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8-bit data bus per port) |
| Access Time | 25 ns max - defines minimum read cycle time for deterministic real-time response |
| Standby Current | 1 mA typ. - enables low-power battery backup mode without external regulators |
| Data Retention Voltage | 2.0 V min - sustains memory state during brown-out or main supply loss |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments without derating |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V TTL/CMOS logic rails |
| Arbitration Logic | On-chip port-to-port - eliminates need for external glue logic in MASTER/SLAVE configurations |
Pinout & Package
7130LA25JGI is packaged in a 48-pin ceramic flatpack (FP48), measuring approximately 0.75 in × 0.75 in × 0.11 in, with gold-plated leads and hermetic sealing suitable for high-reliability applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24, 25, 48) | Ground reference | All four GND pins must be connected to system ground plane for noise immunity and thermal dissipation |
| VCC (Pin 23) | Power supply | Single 5 V ±10% supply; all VCC pins require local 0.1 µF ceramic decoupling |
| CEL / CER | Chip enable (left/right) | Active-low enables port access; controls dynamic/standby current states (ISB1–ISB4) |
| OEL / OER | Output enable (left/right) | Active-low enables I/O drivers; high-Z when disabled to prevent bus contention |
| R/WL / R/WR | Read/write control (left/right) | High = read, low = write; determines direction of data flow on I/O bus |
| BUSYL / BUSYR | Arbitration flag (open-drain) | Outputs LOW when opposing port writes to same address; requires external pull-up resistor |
| INTL / INTR | Interrupt request (left/right) | Asynchronous flags for inter-port signaling; set/reset via dedicated address sequences (3FFH/3FEH) |
| A0L–A9L / A0R–A9R | Address inputs (left/right) | 10-bit address buses selecting one of 1024 memory locations per port |
| I/O0L–I/O7L / I/O0R–I/O7R | Bidirectional data (left/right) | 8-bit parallel data paths; tristated when OE inactive or during write cycles |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous access to same memory location without external logic or software intervention |
| Battery backup data retention | Maintains stored data at 2 V supply, enabling seamless operation during primary power failure |
| Dual independent asynchronous ports | Enables concurrent CPU and DSP access to shared memory with no clock synchronization required |
| Open-drain BUSY outputs | Supports wired-OR arbitration across multiple MASTER devices in multi-processor systems |
| Port-to-port interrupt signaling | Hardware-level notification via INTL/INTR pins avoids polling overhead and reduces latency |
Applications
| Real-Time Motion Control | Avionics Data Buffering |
|---|---|
Use Scenario: Coordinating servo position updates between motion controller and FPGA-based PWM generator. IC Role / Device Role / Timing Role: MASTER dual-port SRAM acting as deterministic handshake buffer with sub-25 ns read/write turnaround. Use Value: Eliminates software semaphore delays; BUSY arbitration ensures atomic write completion before read access. | Use Scenario: Storing sensor fusion results from inertial measurement unit (IMU) for concurrent access by flight management computer and display processor. IC Role / Device Role / Timing Role: Shared memory node with independent left/right port timing, supporting MIL-STD-1553B and ARINC 429 interface coexistence. Use Value: Enables zero-latency data sharing across safety-critical partitions without cache coherency protocols. |
| Industrial PLC Communication Gateway | Military Radar Signal Processing |
Use Scenario: Bridging Modbus RTU and EtherCAT networks where protocol stacks run on separate microcontrollers. IC Role / Device Role / Timing Role: Dual-port memory with INTL/INTR flags synchronizing packet handoff between protocol engines. Use Value: Reduces inter-processor message latency to <50 ns; eliminates need for FIFO buffers or DMA controllers. | Use Scenario: Storing intermediate FFT coefficients between radar front-end ADC and back-end target tracking algorithm running on separate processors. IC Role / Device Role / Timing Role: High-reliability memory with 2 V data retention sustaining operation during transient power dips in airborne platforms. Use Value: Guarantees continuity of mission-critical signal processing during engine ignition transients or EMI events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1354V25-100AXI | 1M × 18, 100 MHz QDR interface, 3.3 V supply, no built-in arbitration | Requires external arbiter logic; suited for high-bandwidth streaming, not deterministic contention resolution | Select when bandwidth >1 Gbps needed and arbitration handled in FPGA |
| IDT7140LA25JGI | SLAVE-only dual-port, identical timing/package but lacks BUSY output and arbitration logic | Must pair with 7130LA25JGI as MASTER; cannot operate standalone in arbitration-critical roles | Use only as companion SLAVE in 16-bit+ bus expansion configurations |
Compared with CY7C1354V25-100AXI and IDT7140LA25JGI, the 7130LA25JGI uniquely integrates arbitration and interrupt signaling in a compact 48-pin package, making it irreplaceable for space-constrained, latency-sensitive dual-processor systems requiring hardware-enforced memory coherency.
Availability
7130LA25JGI is available at Aetrix Electronics and suitable for real-time motion control, avionics data buffering, and industrial PLC communication gateway applications requiring stable component supply across extended product lifecycles.
Supply support for 7130LA25JGI 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 IDT7130 family was designed specifically for deterministic dual-processor memory sharing in industrial automation, aerospace, and defense systems where hardware arbitration and battery-backed retention are mandatory.
FAQ
What is the guaranteed data retention voltage for 7130LA25JGI?
The 7130LA25JGI guarantees data retention at VCC = 2.0 V minimum under specified conditions (TA = +25°C, CE > VCC − 0.2 V). This enables reliable operation during brown-out events or battery-backup scenarios without data loss. The 7130LA25JGI is explicitly rated for this capability, unlike SA variants which lack retention support.
Does 7130LA25JGI require external pull-up resistors on BUSY pins?
Yes, the BUSYL and BUSYR pins on the 7130LA25JGI are open-drain outputs and require external pull-up resistors to VCC. This is explicitly stated in the functional block diagram notes and pin configuration documentation. Failure to install pull-ups will prevent proper arbitration flag assertion during port contention.
Can 7130LA25JGI operate as a standalone dual-port memory without a SLAVE device?
Yes, the 7130LA25JGI functions as a complete stand-alone 1K × 8 dual-port SRAM. Its on-chip arbitration logic and BUSY outputs allow full autonomous operation. The SLAVE IDT7140 is optional and used only when expanding data bus width beyond 8 bits - the 7130LA25JGI does not depend on it for basic dual-port functionality.
What is the maximum operating temperature range certified for 7130LA25JGI?
The 7130LA25JGI is certified for industrial temperature operation from –40°C to +85°C. This is confirmed in the "Recommended Operating Temperature" table and applies to all LA-speed grades including the 25 ns version. Military-grade variants exist but use different suffixes (e.g., JGIM).
How does interrupt flagging work between ports on 7130LA25JGI?
Interrupt flagging on the 7130LA25JGI uses dedicated address sequences: writing to address 3FFH sets the opposite port's interrupt flag (e.g., left port write to 3FFH asserts INTR), while writing to 3FEH clears it. These operations are atomic and do not require additional control signals - the 7130LA25JGI handles flag state internally based solely on address decode.
7130LA25JGI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 52-LCC (J-Lead)
- Packaging:
- Tube
- 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:
- 52-PLCC (19.13x19.13)
7130LA25JGI FAQ
1.How can I place an order for 7130LA25JGI through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130LA25JGI 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 7130LA25JGI reliable?
The price and inventory of 7130LA25JGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130LA25JGI is usually 5 days.
3.What payment methods are accepted for 7130LA25JGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130LA25JGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130LA25JGI?
7130LA25JGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130LA25JGI 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 7130LA25JGI?
For technical support, including 7130LA25JGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130LA25JGI requirements.
6.How does Aetrix verify that 7130LA25JGI is sourced from the original manufacturer or authorized distributors?
All 7130LA25JGI 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 7130LA25JGI meets industry standards.
7.What is the process for return or replacement of 7130LA25JGI?
All 7130LA25JGI units undergo pre-shipment inspection (PSI). If there is an issue with 7130LA25JGI, 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 7130LA25JGI part is unused and in its original packaging.
Return procedure for 7130LA25JGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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