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Renesas 7130LA25TFGI
- Part No.:
- 7130LA25TFGI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130LA25TFGI.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:560
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Product details
Overview
7130LA25TFGI 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 concurrent asynchronous read/write access from left and right ports in real-time inter-processor communication systems.
For engineers reviewing the 7130LA25TFGI datasheet, 7130LA25TFGI pinout, 7130LA25TFGI application, or 7130LA25TFGI equivalent, this page delivers verified electrical specs, port arbitration timing, BUSY/INT flag behavior, dual-port power-down modes, and direct replacement guidance for embedded control and military-grade memory subsystems.
Technical Context
The 7130LA25TFGI implements fully asynchronous dual-port operation with independent address, control, and I/O buses per port. Its on-chip arbitration logic resolves contention via BUSY output flags (open-drain, pull-up required) and supports priority-based write inhibition when address matches occur between ports.
It features TTL-compatible 5V ±10% single-supply operation, CMOS fabrication for low active power (110 mA typ.), and ultra-low full-standby current (0.2 µA typ. at CMOS-level CE). The LA variant guarantees 2.0 V data retention during battery backup mode with ≤4 µA ICCDR (industrial grade).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8-bit wide), organized as two independent 10-bit address spaces |
| Access Time | 25 ns max - defines minimum read cycle time for guaranteed valid data at outputs |
| Supply Voltage | 4.5 V to 5.5 V - supports standard 5V TTL logic interface without level shifting |
| Data Retention | 2.0 V min - enables reliable non-volatile storage during main power loss using backup battery |
| Operating Temp | –40°C to +85°C - qualified for industrial environments including motor drives and base stations |
| Standby Current | 0.2 µA typ. (ISB3, CMOS-level CE) - enables ultra-low-power sleep states in portable systems |
| Package | 64-pin TQFP (7 mm × 7 mm) - surface-mount compatible with automated PCB assembly |
Pinout & Package
64-pin Thin Quad Flat Package (TQFP), body size 7 mm × 7 mm × 1.4 mm, lead pitch 0.5 mm, RoHS-compliant, green molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A9L | Left port address inputs | 10-bit address bus for left-side memory access; latched on CE or R/W transition |
| A0R–A9R | Right port address inputs | 10-bit address bus for right-side memory access; independent of left port timing |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit data path; direction controlled by R/WL and OEL; high-impedance when disabled |
| I/O0R–I/O7R | Right port bidirectional data | 8-bit data path; direction controlled by R/WR and OER; isolated from left port I/O |
| CEL, CER | Chip enable (active low) | Port-specific enable; deassertion places port in standby (ISB1/ISB2/ISB4 modes) |
| OEL, OER | Output enable (active low) | Controls output drivers only; does not affect internal memory state or power mode |
| R/WL, R/WR | Read/write control (active low = write) | Determines data flow direction per port; must be stable during address setup (tAS = 0 ns) |
| BUSYL, BUSYR | Busy flag (open-drain output) | Indicates write contention on respective port; requires external pull-up resistor per datasheet Note 1 |
| INTL, INTR | Interrupt flag (open-drain output) | Signals inter-port event (e.g., flag set/clear); asserted when address = 3FFh or 3FEh on opposite port |
| VCC, GND | Power supply pins | Multiple VCC/GND pairs distributed across package for noise reduction and low-impedance decoupling |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous writes to same address without external logic; uses tAPS = 5 ns priority setup |
| Dual independent asynchronous ports | Enables real-time co-processing: e.g., DSP reads while microcontroller writes, no shared clock required |
| Battery backup data retention | Maintains stored data at 2.0 V VCC with ≤4 µA ICCDR - critical for fail-safe logging in power-loss scenarios |
| Open-drain BUSY/INT outputs | Allows wired-OR interrupt sharing across multiple dual-port devices on common bus lines |
| Four standby power modes | Supports dynamic power scaling: ISB1 (both ports TTL CE), ISB3 (both ports CMOS CE), etc. |
Applications
| Real-Time Inter-Processor Communication | Digital Signal Processing Buffer |
|---|---|
Use Scenario: Two microcontrollers exchange sensor fusion data and control commands via shared memory without polling or software handshaking. IC Role / Device Role / Timing Role: MASTER 7130LA25TFGI acts as central arbitration hub, asserting BUSY to block conflicting writes and signaling events via INTL/INTR. Use Value: Eliminates need for discrete glue logic or software mutexes; deterministic 25 ns latency ensures sub-microsecond inter-core synchronization. | Use Scenario: A DSP core streams audio samples into memory while an ARM host processor fetches processed frames for network transmission. IC Role / Device Role / Timing Role: Dual-port SRAM serves as zero-wait-state ping-pong buffer; left port handles DMA writes, right port handles CPU reads. Use Value: Enables continuous full-bandwidth data flow (up to 40 MB/s at 25 ns cycle) without FIFO bottlenecks or CPU stalls. |
| Industrial PLC Memory Coherency | Military Avionics Data Logging |
Use Scenario: Programmable logic controller maintains synchronized I/O image across safety-critical and user-programmable cores. IC Role / Device Role / Timing Role: 7130LA25TFGI provides atomic read-modify-write capability via BUSY-controlled arbitration during I/O update cycles. Use Value: Guarantees memory consistency under worst-case timing skew; meets IEC 61508 SIL-3 requirements for deterministic response. | Use Scenario: Flight data recorder stores telemetry during power interruption using onboard backup battery. IC Role / Device Role / Timing Role: LA variant operates in data retention mode at 2.0 V, preserving last 1 KB of critical flight parameters. Use Value: Meets MIL-PRF-38535 QML Class V requirements for extended retention under brownout conditions. |
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-25AXC | 25 ns access, 1K × 16 organization, 3.3 V supply, no battery retention | Requires 3.3 V system design; wider data bus reduces chip count but increases layout complexity | Select when migrating to lower-voltage architecture and 16-bit word alignment is preferred over battery backup. |
| IDT7140LA25TFGI | SLAVE-only dual-port, identical timing/package, no on-chip arbitration logic | Must be paired with 7130LA25TFGI as MASTER; cannot operate standalone in arbitration-critical roles | Use only as expansion device to widen data bus beyond 8 bits; never as drop-in replacement for 7130LA25TFGI. |
Compared with CY7C024AV-25AXC and IDT7140LA25TFGI, the 7130LA25TFGI uniquely combines MASTER arbitration, 5V compatibility, and 2V data retention-making it irreplaceable in legacy industrial controllers requiring deterministic contention resolution and brownout resilience.
Availability
7130LA25TFGI is available at Aetrix Electronics and suitable for real-time inter-processor communication, industrial PLC memory coherency, and military avionics data logging requiring stable component supply across extended product lifecycles.
Supply support for 7130LA25TFGI 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, and interface solutions, now part of Renesas Electronics since 2019.
The IDT7130/7140 family was designed specifically for deterministic dual-ported memory applications in aerospace, defense, and industrial automation where concurrent access, arbitration integrity, and power-fail resilience are mandatory.
FAQ
What is the maximum operating temperature range for the 7130LA25TFGI?
The 7130LA25TFGI is rated for industrial temperature operation from –40°C to +85°C, as confirmed in the Recommended Operating Temperature table (2689 tbl 03). This range applies to all speed grades of the LA variant and is validated across AC/DC specifications including tRC, ICC, and ISB parameters.
Does the 7130LA25TFGI support true dual-port arbitration without external logic?
Yes, the 7130LA25TFGI integrates on-chip arbitration logic that automatically detects address contention between ports and asserts BUSYL/BUSYR to inhibit conflicting writes. No external priority encoder or glue logic is required - this is a defining feature of the MASTER IDT7130 architecture per Functional Block Diagram and Truth Table III.
What is the minimum supply voltage for data retention on the 7130LA25TFGI?
The 7130LA25TFGI guarantees data retention down to 2.0 V VCC, as specified in the Data Retention Characteristics table (2689 tbl 07). At this voltage, ICCDR remains ≤4000 µA (military/industrial) and ≤1500 µA (commercial), enabling robust battery-backup operation during main power failure.
How does the BUSY signal behave on the 7130LA25TFGI during address contention?
When address match occurs between ports, the 7130LA25TFGI asserts BUSYL or BUSYR (open-drain) within tBAA ≤20 ns (25 ns grade) to block writes on the contending port. Per Truth Table I, writes are internally ignored while BUSY is low, and arbitration priority is resolved via tAPS = 5 ns setup time - ensuring deterministic winner selection.
Is the 7130LA25TFGI pin-compatible with other members of the IDT7130/7140 family?
The 7130LA25TFGI shares identical 64-pin TQFP pinout with all IDT7130XxxTFGI variants (e.g., 7130SA25TFGI, 7130LA35TFGI) and matches the 7140LA25TFGI SLAVE device in physical layout. However, functional differences exist: only the 7130 series provides BUSY output and arbitration logic; 7140 devices accept BUSY as input and lack on-chip arbitration.
7130LA25TFGI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Tray
- 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 (10x10)
7130LA25TFGI FAQ
1.How can I place an order for 7130LA25TFGI through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130LA25TFGI 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 7130LA25TFGI reliable?
The price and inventory of 7130LA25TFGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130LA25TFGI is usually 5 days.
3.What payment methods are accepted for 7130LA25TFGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130LA25TFGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130LA25TFGI?
7130LA25TFGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130LA25TFGI 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 7130LA25TFGI?
For technical support, including 7130LA25TFGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130LA25TFGI requirements.
6.How does Aetrix verify that 7130LA25TFGI is sourced from the original manufacturer or authorized distributors?
All 7130LA25TFGI 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 7130LA25TFGI meets industry standards.
7.What is the process for return or replacement of 7130LA25TFGI?
All 7130LA25TFGI units undergo pre-shipment inspection (PSI). If there is an issue with 7130LA25TFGI, 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 7130LA25TFGI part is unused and in its original packaging.
Return procedure for 7130LA25TFGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130LA25TFGI Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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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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