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Renesas 7130LA25PFI8
- Part No.:
- 7130LA25PFI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130LA25PFI8.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,644
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Product details
Overview
7130LA25PFI8 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 communication systems such as digital signal processors interfacing with microcontrollers.
For engineers reviewing the 7130LA25PFI8 datasheet, 7130LA25PFI8 pinout, 7130LA25PFI8 application, or 7130LA25PFI8 equivalent, key selection criteria include dual-port arbitration timing (tBAA ≤ 25 ns), BUSY flag behavior for contention resolution, low standby current (1 µA typical at CMOS-level CE), and compatibility with TTL-level 5 V ±10% supply in space-constrained industrial control modules.
Technical Context
The 7130LA25PFI8 implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port. Its on-chip arbitration logic resolves port-to-port memory contention via open-drain BUSY outputs (BUSYL/BUSYR) requiring external pull-up resistors, and supports interrupt signaling (INTL/INTR) for inter-processor coordination.
It features automatic power-down controlled by chip enable (CEL/CER), enabling two distinct standby modes: TTL-level CE-driven (ISB1 = 25 mA max) and CMOS-level CE-driven (ISB3 = 0.2 µA typ). Battery backup operation is supported only in LA variants, retaining data at VCC = 2.0 V with ICCDR ≤ 4000 µA (military/industrial grade).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 1K × 8 (1024 words × 8 bits); provides byte-wide dual-access storage without external data bus widening |
| Access Time (max) | 25 ns; guarantees deterministic read latency for real-time DSP co-processing loops |
| Supply Voltage | 5.0 V ±10%; compatible with standard TTL logic rails and eliminates need for dedicated voltage regulators |
| Operating Temperature | –40°C to +85°C; qualified for industrial embedded environments including motor drives and PLCs |
| Data Retention Voltage | 2.0 V (LA only); enables seamless switchover to backup battery during main power loss |
| Standby Current (ISB3) | 0.2 µA typical (CMOS-level CE); reduces system power budget in always-on monitoring nodes |
| Bus Interface | Two independent TTL-compatible ports (left/right); permits concurrent host and peripheral access without arbitration firmware |
Pinout & Package
7130LA25PFI8 is packaged in a 48-pin plastic DIP (PDG48) with 0.600-inch width, 0.19-inch height, and through-hole mounting. Pin assignments are validated per IDT document 2689 drw 02.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1, 24) | Ground reference | Both pins must be connected to system ground plane to ensure noise immunity and stable DC bias |
| VCC (Pin 23) | Power supply | Single 5 V ±10% supply powers both ports; all VCC pins require local 0.1 µF ceramic decoupling |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; CMOS-level high disables port and enters ultra-low ISB3 mode |
| OEL / OER | Output enable (left/right) | Active-low controls I/O drivers; high-Z state prevents bus contention during multi-port sharing |
| 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 flag (open-drain) | Low indicates memory contention on that port; requires external 4.7 kΩ pull-up to VCC |
| INTL / INTR | Interrupt request (open-drain) | Signals inter-port event (e.g., flag set/reset); also requires external pull-up resistor |
| A0L–A9L / A0R–A9R | Address inputs (left/right) | 10-bit address buses select one of 1024 locations independently per port |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (bidirectional) | Byte-wide data path per port; driven only when OE and CE active; high-Z otherwise |
Key Features
| Feature | Design Value |
|---|---|
| On-chip port arbitration logic | Resolves simultaneous access to same address without external logic; eliminates risk of data corruption in real-time systems |
| Battery backup data retention | Maintains stored data at 2.0 V supply - critical for fail-safe logging in power-interrupted industrial equipment |
| Dual independent asynchronous ports | Enables full-speed concurrent read/write between CPU and DSP without clock domain synchronization overhead |
| Open-drain BUSY/INT outputs | Allows wired-OR connection of multiple devices on shared interrupt or busy lines; simplifies system-level signaling |
| Ultra-low CMOS standby current | 0.2 µA typical (ISB3) extends battery life in portable test instruments and remote sensor nodes |
Applications
| Real-Time Digital Signal Processing | Industrial Programmable Logic Controllers |
|---|---|
Use Scenario: A DSP writes processed sensor data to shared memory while a microcontroller reads it for display and control decisions. IC Role / Device Role / Timing Role: MASTER dual-port SRAM acts as deterministic, contention-managed buffer between asynchronous processing domains. Use Value: Eliminates software arbitration delays; tBAA ≤ 25 ns ensures sub-40 ns worst-case response to new data availability. | Use Scenario: PLC main CPU updates I/O status map while motion controller reads same map for servo loop execution. IC Role / Device Role / Timing Role: Provides atomic, hardware-enforced memory access coordination across safety-critical control threads. Use Value: BUSY flag prevents overwrites during concurrent access; supports SIL2-compliant deterministic behavior. |
| Redundant Communication Gateways | Test & Measurement Equipment |
Use Scenario: Dual Ethernet controllers share configuration and packet buffers in telecom gateway with hot-swap capability. IC Role / Device Role / Timing Role: Acts as fault-isolated memory hub where each port connects to independent PHY/MAC subsystem. Use Value: Independent CE/OE control allows graceful port disable during link failure without affecting active channel. | Use Scenario: Oscilloscope front-end ADC streams samples into memory while ARM processor fetches and processes waveform data. IC Role / Device Role / Timing Role: Serves as zero-latency acquisition buffer with guaranteed 25 ns read access for real-time triggering. Use Value: Battery backup retains last captured trace after power cycle - essential for post-fault analysis. |
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 | 512 × 16 organization, 25 ns access, 3.3 V core (with 5 V tolerant I/O), no built-in BUSY arbitration | Requires external logic for contention resolution; suited for wider data paths but adds BOM and layout complexity | Select when 16-bit data width is mandatory and external arbitration is acceptable |
| AS7C31026B-25JCIN | 1K × 16 organization, 25 ns access, 3.3 V only, no BUSY/INT signals, no battery retention | Lacks hardware arbitration and low-voltage retention; limited to non-critical, single-supply designs | Choose for cost-sensitive consumer applications where deterministic contention handling is not required |
Compared with CY7C1354V25 and AS7C31026B-25JCIN, the 7130LA25PFI8 uniquely integrates on-die arbitration, 5 V TTL compatibility, and 2 V data retention - making it the only drop-in solution for industrial dual-processor systems needing guaranteed atomic access and fail-safe memory persistence.
Availability
7130LA25PFI8 is available at Aetrix Electronics and suitable for industrial programmable logic controllers, real-time DSP co-processing systems, and redundant communication gateways requiring stable component supply across extended product lifecycles.
Supply support for 7130LA25PFI8 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 timing, memory interface, RF, and high-performance computing solutions, now part of Renesas Electronics.
The IDT7130 family was designed specifically for deterministic, low-latency inter-processor communication in industrial and military systems where hardware-enforced memory arbitration and battery-backed data integrity are mandatory.
FAQ
What is the maximum operating temperature range for the 7130LA25PFI8?
The 7130LA25PFI8 is rated for industrial temperature operation from –40°C to +85°C, verified per IDT specification 2689 tbl 03. This range supports deployment in harsh environments such as factory automation controllers and outdoor telecommunications equipment without thermal derating.
Does the 7130LA25PFI8 support true dual-port arbitration without external components?
Yes, the 7130LA25PFI8 includes on-chip arbitration logic that automatically manages port contention using BUSYL and BUSYR open-drain outputs. When both ports attempt access to the same address, the earlier-stabilized port wins, and the delayed port's BUSY signal asserts low - eliminating need for external priority encoders or glue logic.
What is the data retention voltage and current for the 7130LA25PFI8?
The 7130LA25PFI8 supports data retention at VCC = 2.0 V (minimum), with ICCDR ≤ 4000 µA under military/industrial conditions (2689 tbl 07). This enables reliable memory holdover during brownout or battery-switchover events in mission-critical instrumentation.
How does the 7130LA25PFI8 differ from the 7140LA25PFI8 in system design?
The 7130LA25PFI8 is the MASTER device with BUSY outputs and arbitration logic, while the 7140LA25PFI8 is the SLAVE with BUSY inputs only. In a 16-bit expansion, one 7130LA25PFI8 controls arbitration and two 7140LA25PFI8s extend data width - the 7130LA25PFI8 cannot be replaced by a 7140LA25PFI8 in MASTER role.
Is the 7130LA25PFI8 pin-compatible with other speed grades in the same package?
Yes, all 7130LA variants (e.g., 7130LA20, 7130LA25, 7130LA35) in the 48-pin PDG48 package share identical pinout and electrical interface. Speed grade selection affects only access time and power consumption - allowing direct substitution during prototyping or qualification without PCB revision.
7130LA25PFI8 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:
- 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)
7130LA25PFI8 FAQ
1.How can I place an order for 7130LA25PFI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130LA25PFI8 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 7130LA25PFI8 reliable?
The price and inventory of 7130LA25PFI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130LA25PFI8 is usually 5 days.
3.What payment methods are accepted for 7130LA25PFI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130LA25PFI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130LA25PFI8?
7130LA25PFI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130LA25PFI8 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 7130LA25PFI8?
For technical support, including 7130LA25PFI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130LA25PFI8 requirements.
6.How does Aetrix verify that 7130LA25PFI8 is sourced from the original manufacturer or authorized distributors?
All 7130LA25PFI8 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 7130LA25PFI8 meets industry standards.
7.What is the process for return or replacement of 7130LA25PFI8?
All 7130LA25PFI8 units undergo pre-shipment inspection (PSI). If there is an issue with 7130LA25PFI8, 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 7130LA25PFI8 part is unused and in its original packaging.
Return procedure for 7130LA25PFI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130LA25PFI8 Tags
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