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Renesas 7130LA20PF
- Part No.:
- 7130LA20PF
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130LA20PF.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,968
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Product details
Overview
7130LA20PF from IDT is a high-speed 1K × 8 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, 20 ns maximum read cycle time, 2 V data retention capability, and TTL-compatible 5 V ±10% operation - used in real-time inter-processor communication systems requiring concurrent access without external logic.
For engineers reviewing the 7130LA20PF datasheet, 7130LA20PF pinout, 7130LA20PF application, or 7130LA20PF equivalent, this page delivers verified timing parameters, BUSY/INT arbitration behavior, battery-backed data retention specs, and direct replacement guidance for industrial embedded memory subsystems.
Technical Context
The 7130LA20PF implements fully asynchronous dual-port architecture with independent left/right address, control, and I/O buses. Its on-chip arbitration logic resolves port contention via BUSY flag assertion, with tBDD ≤ 25 ns (for 20 ns version) ensuring deterministic resolution when both ports access the same address.
It supports MASTER-only functions: open-drain BUSYL/BUSYR outputs requiring pull-up resistors, INTL/INTR flags for cross-port signaling, and automatic power-down via CE control - all operating within –40°C to +85°C industrial temperature range with 1 µA full-standby current (ISB3).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 1K × 8 (1024 words × 8 bits), dual independent ports |
| Max Read Cycle Time | 20 ns - enables 50 MHz sustained random-access throughput per port |
| Data Retention Voltage | 2.0 V - supports battery backup with guaranteed data hold during main power loss |
| Full Standby Current | 1 µA (ISB3) - ultra-low leakage in CMOS-level CE disable mode |
| Operating Voltage | 5.0 V ±10% - single-supply TTL compatibility with no level-shifting required |
| Temperature Range | –40°C to +85°C - qualified for industrial-grade embedded systems |
| BUSY Timing (tBDD) | ≤25 ns - maximum delay from BUSY deassertion to valid read data |
Pinout & Package
7130LA20PF is supplied in a 48-pin ceramic flatpack (FP48) package measuring approximately 0.75 in × 0.75 in × 0.11 in, with 2×24 staggered pin layout and side-brazed hermetic sealing for high-reliability applications.
| 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 across both ports |
| VCC (Pins 23, 26) | Power supply | Dual VCC pins ensure stable 5 V distribution to core and I/O circuitry |
| CEL / CER | Chip enable (left/right) | Independent active-low enables allow selective port activation and power gating |
| OEL / OER | Output enable (left/right) | Separate OE controls permit high-impedance tri-state management per port |
| R/WL / R/WR | Read/write control (left/right) | Asynchronous direction control - HIGH = read, LOW = write |
| BUSYL / BUSYR | Arbitration status (open-drain) | Active-low flags indicating port contention; require external pull-up for proper logic levels |
| INTL / INTR | Interrupt request (open-drain) | Port-to-port signaling outputs - asserted when address 3FFh (right) or 3FEh (left) is written |
| A0L–A9L / A0R–A9R | Address inputs (10-bit each) | Two independent 10-bit address buses enabling simultaneous access to any location |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (8-bit bidirectional) | Fully independent 8-bit data paths - no bus sharing or multiplexing required |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Eliminates need for external priority encoders or glue logic in multi-processor shared-memory designs |
| Open-drain BUSY/INT outputs | Enables wired-OR interrupt aggregation and flexible voltage-level interfacing with external pull-ups |
| 2 V data retention (LA version) | Preserves memory contents during brown-out or controlled shutdown using coin-cell backup |
| Independent port power-down | Allows one port to remain active while the other enters <1 µA standby (ISB4), optimizing system-level power |
| TTL-compatible interface | Direct connection to legacy microcontrollers and FPGAs without level translators or bus buffers |
Applications
| Real-Time Inter-Processor Communication | Digital Signal Processing Buffer |
|---|---|
Use Scenario: Two DSPs exchange filter coefficients and processed samples via shared memory without software handshaking. IC Role / Device Role / Timing Role: MASTER dual-port SRAM acting as zero-latency mailbox with hardware-enforced arbitration. Use Value: Eliminates polling delays and race conditions; 20 ns access ensures pipeline continuity at 50 MHz clock rates. | Use Scenario: An FPGA-accelerated FFT engine reads input data from one port while writing results to the same memory via the second port. IC Role / Device Role / Timing Role: Asynchronous buffer enabling concurrent read/write operations on overlapping memory regions. Use Value: Doubles effective bandwidth versus single-port SRAM; avoids stall cycles during burst transfers. |
| Industrial PLC Data Exchange | Battery-Backed Configuration Storage |
Use Scenario: PLC main CPU and safety monitor core share I/O status and diagnostic logs in real time. IC Role / Device Role / Timing Role: Industrial-temperature-rated dual-port RAM providing deterministic BUSY-flag arbitration under EMI stress. Use Value: Guarantees atomic updates and prevents corruption during simultaneous writes to shared registers. | Use Scenario: Medical device stores calibration constants and fault logs during AC power failure using onboard Li-MnO₂ cell. IC Role / Device Role / Timing Role: LA-version SRAM maintaining data integrity at 2.0 V with <100 µA retention current. Use Value: Meets IEC 62304 power-fail data preservation requirements without supercapacitor support circuitry. |
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 | 25 ns max access, 5 V only, no data retention below 4.5 V, PLCC-44 package | Lacks 2 V data retention and open-drain BUSY/INT; requires external arbitration logic | Choose for cost-sensitive commercial systems where battery backup is unnecessary and PCB layout accommodates PLCC |
| AS7C31025B-20JIN | 20 ns access, 3.3 V supply, LVCMOS interface, TQFP-48 package | Not pin-compatible; incompatible voltage domain; no built-in arbitration or BUSY logic | Use only in new 3.3 V designs with FPGA-based arbitration; not a drop-in replacement |
Compared with CY7C131-25JC and AS7C31025B-20JIN, the 7130LA20PF uniquely integrates arbitration, 2 V retention, and open-drain signaling in a 5 V industrial-temperature FP48 package - making it irreplaceable in legacy real-time control systems requiring hardware-enforced coherency.
Availability
7130LA20PF is available at Aetrix Electronics and suitable for real-time inter-processor communication, industrial PLC data exchange, and battery-backed configuration storage requiring stable component supply across extended product lifecycles.
Supply support for 7130LA20PF 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 memory, timing, and interface solutions for communications, computing, and industrial markets.
The 7130LA20PF belongs to IDT's legacy dual-port SRAM product line, engineered specifically for deterministic, low-latency shared-memory architectures in harsh-environment embedded systems.
FAQ
What is the maximum operating temperature range for the 7130LA20PF?
The 7130LA20PF is rated for industrial temperature operation from –40°C to +85°C. This specification is confirmed in the "Recommended Operating Temperature and Supply Voltage" table (2689 tbl 03) and applies across all DC and AC electrical characteristics for the LA variant. It does not support military-grade –55°C to +125°C operation.
Does the 7130LA20PF support true dual-port concurrent read/write to the same memory location?
No - the 7130LA20PF uses hardware arbitration to prevent simultaneous writes to the same address. When contention occurs, the BUSY flag asserts on the losing port, inhibiting its write. The 7130LA20PF is designed for coordinated access, not true simultaneous conflict-free access; concurrent reads to the same location are permitted.
What is the purpose of the open-drain BUSYL and BUSYR pins on the 7130LA20PF?
The BUSYL and BUSYR pins on the 7130LA20PF are open-drain outputs that signal port contention. They require external pull-up resistors to VIH (typically 5 V) to generate valid HIGH logic levels. This design allows multiple 7130LA20PF devices or other open-drain signals to share a common BUSY bus for system-level arbitration.
Can the 7130LA20PF retain data at 2.0 V without functional operation?
Yes - the 7130LA20PF guarantees data retention at VCC = 2.0 V with ICCDR ≤ 4000 µA (military/industrial) or ≤ 1500 µA (commercial), as specified in "Data Retention Characteristics" (2689 tbl 07). During retention mode, all control inputs must be held at valid logic levels (VIH > VCC − 0.2 V or VIL < 0.2 V), and no read/write cycles are performed.
Is the 7130LA20PF pin-compatible with the 7140LA20PF slave device?
No - the 7130LA20PF (MASTER) and 7140LA20PF (SLAVE) share identical pinouts in the same package (e.g., FP48), but their BUSY and INT pin functions differ: 7130LA20PF has BUSYL/BUSYR as open-drain outputs, while 7140LA20PF has them as inputs. Swapping them without redesigning pull-up/pull-down and arbitration logic will cause functional failure.
7130LA20PF 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:
- 20ns
- Access Time:
- 20 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-TQFP (14x14)
7130LA20PF FAQ
1.How can I place an order for 7130LA20PF through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130LA20PF 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 7130LA20PF reliable?
The price and inventory of 7130LA20PF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130LA20PF is usually 5 days.
3.What payment methods are accepted for 7130LA20PF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130LA20PF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130LA20PF?
7130LA20PF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130LA20PF 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 7130LA20PF?
For technical support, including 7130LA20PF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130LA20PF requirements.
6.How does Aetrix verify that 7130LA20PF is sourced from the original manufacturer or authorized distributors?
All 7130LA20PF 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 7130LA20PF meets industry standards.
7.What is the process for return or replacement of 7130LA20PF?
All 7130LA20PF units undergo pre-shipment inspection (PSI). If there is an issue with 7130LA20PF, 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 7130LA20PF part is unused and in its original packaging.
Return procedure for 7130LA20PF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130LA20PF 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
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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