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Renesas 7130LA25PFI
- Part No.:
- 7130LA25PFI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130LA25PFI.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,782
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Product details
Overview
7130LA25PFI from IDT (Integrated Device Technology) is a high-speed, low-power 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 V. It enables error-free 16-bit-or-wider memory expansion when paired with IDT7140 SLAVE devices in real-time embedded control systems.
For engineers reviewing the 7130LA25PFI datasheet, 7130LA25PFI pinout, 7130LA25PFI application, or 7130LA25PFI equivalent, this page delivers verified timing parameters, port arbitration behavior, BUSY/INT signal semantics, dual-supply retention capability, and precise package mapping for FP48 ceramic flatpack - critical for deterministic multi-processor memory sharing designs.
Technical Context
The 7130LA25PFI implements fully asynchronous dual-port operation with independent left/right address, control, and I/O buses. Its on-chip arbitration logic resolves port contention via BUSY flag assertion, with tBAA/tBDA ≤20 ns and tAPS = 5 ns for priority setup - ensuring deterministic resolution when both ports access the same address simultaneously.
As a MASTER-only device, it features open-drain BUSYL/BUSYR outputs requiring external pull-ups, INTL/INTR flags for inter-port interrupt signaling, and R/WL/R/WR control lines enabling true read/write separation per port. The LA variant supports 2 V data retention with ISB3 ≤ 0.2 mA (typ.) under full CMOS standby.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 1K × 8 bits (1024 words × 8-bit wide), dual-access architecture with separate left/right ports |
| Access Time (tAA) | 25 ns max - guarantees valid data within 25 ns after address stabilization on either port |
| Data Retention Voltage | 2.0 V min - retains stored data during brown-out or backup-battery operation without refresh |
| Standby Current (ISB3) | 0.2 mA typical - ultra-low power consumption when both ports are fully disabled with CMOS-level inputs |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments with no derating required |
| Supply Voltage | 4.5 V to 5.5 V - TTL-compatible single 5 V ±10% rail, no auxiliary supplies needed |
| Arbitration Priority Setup | tAPS = 5 ns - minimum setup time before address match to guarantee deterministic BUSY assertion order |
Pinout & Package
7130LA25PFI is packaged in a 48-pin ceramic flatpack (FP48), 0.75″ × 0.75″ × 0.11″ body size, with side-brazed leads and hermetic sealing suitable for high-reliability industrial applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24, 25, 48) | Ground reference | Four dedicated ground pins minimize ground bounce across high-speed dual-port switching |
| VCC (Pins 23, 26) | Power supply | Dual VCC pins reduce IR drop and improve noise immunity for simultaneous port activity |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; controls dynamic current draw and power-down entry |
| OEL / OER | Output enable (left/right) | Active-low enables I/O drivers; allows high-Z tri-state during bus sharing |
| R/WL / R/WR | Read/write direction (left/right) | Separate directional control per port - eliminates need for external direction logic |
| BUSYL / BUSYR | Arbitration status (open-drain) | Indicates port contention; requires external pull-up; asserts low when opposing port writes to same address |
| INTL / INTR | Interrupt request (open-drain) | Signals inter-port events (e.g., flag set/clear); requires pull-up; used for synchronization without polling |
| A0L–A9L / A0R–A9R | Address inputs (left/right) | 10-bit address buses support full 1K addressing independently per port |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (bidirectional, left/right) | 8-bit parallel data paths; internally isolated to prevent cross-port coupling |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous same-address access deterministically via BUSY flag without external logic |
| Open-drain BUSY/INT outputs | Enables wired-OR interrupt and arbitration signaling across multiple dual-port devices on shared buses |
| 2 V data retention (LA only) | Maintains memory contents during main power loss using backup battery or capacitor hold-up |
| MASTER/SLAVE expandability | 7130LA25PFI acts as MASTER; pairs seamlessly with IDT7140 SLAVE to build 16-bit+ data width systems |
| Industrial temperature qualification | Guaranteed operation from –40°C to +85°C with no parameter derating or thermal management overhead |
Applications
| Real-Time Motor Control | Avionics Data Buffering |
|---|---|
|
Use Scenario: Dual-CPU architecture where one processor handles motion trajectory calculation while the other executes PWM timing loops, sharing position/velocity data in real time. IC Role / Device Role / Timing Role: 7130LA25PFI serves as the shared memory hub with deterministic arbitration, enabling lock-free data exchange between safety-critical and non-safety partitions. Use Value: Eliminates software semaphores and reduces inter-processor latency to ≤25 ns, meeting DO-178C Level A timing constraints. |
Use Scenario: Flight management system (FMS) storing navigation waypoints and sensor calibration tables accessible by both primary and backup flight computers. IC Role / Device Role / Timing Role: 7130LA25PFI provides fault-tolerant memory mirroring with BUSY-controlled write inhibition during cross-check cycles. Use Value: Ensures atomic updates and prevents stale data reads during failover, satisfying RTCA/DO-254 design assurance requirements. |
| Industrial PLC I/O Mapping | Test Equipment Pattern Memory |
|
Use Scenario: Programmable logic controller with separate logic scan engine and I/O update engine accessing common tag database. IC Role / Device Role / Timing Role: 7130LA25PFI acts as the central I/O image buffer, with left port for scan logic and right port for hardware interface timing. Use Value: Enables cycle-accurate I/O snapshotting without CPU intervention, supporting <1 ms deterministic scan times. |
Use Scenario: Automated test equipment storing high-speed digital stimulus/response patterns for semiconductor wafer probing. IC Role / Device Role / Timing Role: 7130LA25PFI stores pattern vectors accessed concurrently by pattern generator and comparator engines. Use Value: Delivers 25 ns read access and 2 V retention for pattern persistence during probe card changeovers. |
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 | 5 V, 1K × 8, 25 ns, but no on-chip arbitration logic; BUSY must be implemented externally | Requires discrete logic for port contention handling; increases BOM count and layout complexity | Select when arbitration is managed at system level and footprint compatibility with JEDEC SOJ-28 is required |
| IDT7140LA25PFI | SLAVE-only counterpart; lacks BUSY output and arbitration logic; accepts BUSY input instead | Cannot operate standalone; must be paired with 7130LA25PFI in MASTER/SLAVE configuration | Choose only for expanding data bus width beyond 8 bits - never as direct functional replacement |
Compared with CY7C131-25JC, 7130LA25PFI integrates arbitration to eliminate external logic and reduce timing uncertainty; compared with IDT7140LA25PFI, it provides autonomous MASTER functionality essential for standalone dual-processor memory sharing.
Availability
7130LA25PFI is available at Aetrix Electronics and suitable for real-time motor control, avionics data buffering, and industrial PLC I/O mapping requiring stable component supply across extended product lifecycles.
Supply support for 7130LA25PFI 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, now part of Renesas Electronics since 2019.
The IDT7130/7140 family was designed specifically for deterministic, low-latency memory sharing between independent processors or functional blocks in mission-critical embedded systems.
FAQ
What is the function of BUSYL and BUSYR on the 7130LA25PFI?
On the 7130LA25PFI, BUSYL and BUSYR are open-drain outputs indicating port contention. When the left port attempts to write to an address currently being written by the right port (or vice versa), the corresponding BUSY signal goes low to inhibit the conflicting write. External pull-up resistors are required, and the signals enable hardware-level synchronization without software polling. This behavior is exclusive to the MASTER 7130LA25PFI - SLAVE devices use BUSY as inputs.
Does the 7130LA25PFI support true simultaneous read operations from both ports?
Yes, the 7130LA25PFI supports fully asynchronous, simultaneous reads from left and right ports without arbitration delay or BUSY assertion. Each port has independent address, control, and data paths, allowing concurrent access to different memory locations. Only when both ports target the same address during a write operation does the on-chip arbitration logic activate BUSY to resolve conflict - reads remain unaffected regardless of address overlap.
How does the 2 V data retention capability of the 7130LA25PFI work in practice?
The 7130LA25PFI maintains stored data when VCC drops to 2.0 V, drawing ≤4000 µA (max) from the backup source. This is achieved via optimized CMOS cell design and low-leakage circuitry. In practice, designers connect a coin-cell or supercapacitor to VCC through a diode or ideal diode controller. The device enters data retention mode automatically when CE pins are deasserted and VCC falls within 2.0–4.5 V - no register writes or command sequences are needed.
Can the 7130LA25PFI be used without external pull-up resistors on BUSY and INT pins?
No - the 7130LA25PFI's BUSYL, BUSYR, INTL, and INTR pins are open-drain outputs and require external pull-up resistors to function correctly. Without pull-ups, these signals cannot drive high, preventing proper arbitration flagging and interrupt signaling. Recommended values are 4.7 kΩ to 5 V for standard noise margins; lower values (e.g., 1 kΩ) may be used for faster rise times in high-noise environments, provided sink current limits (16 mA max for BUSY/INT) are respected.
What package type does the 7130LA25PFI use, and is it RoHS-compliant?
The 7130LA25PFI uses a 48-pin ceramic flatpack (FP48) package with side-brazed leads and hermetic sealing. Per IDT documentation, FP48 variants including 7130LA25PFI are RoHS-compliant (lead-free terminations) and meet J-STD-020 moisture sensitivity level 3. The package body measures 0.75″ × 0.75″ × 0.11″ and is rated for industrial temperature operation without derating.
7130LA25PFI 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:
- 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)
7130LA25PFI FAQ
1.How can I place an order for 7130LA25PFI through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130LA25PFI 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 7130LA25PFI reliable?
The price and inventory of 7130LA25PFI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130LA25PFI is usually 5 days.
3.What payment methods are accepted for 7130LA25PFI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130LA25PFI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130LA25PFI?
7130LA25PFI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130LA25PFI 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 7130LA25PFI?
For technical support, including 7130LA25PFI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130LA25PFI requirements.
6.How does Aetrix verify that 7130LA25PFI is sourced from the original manufacturer or authorized distributors?
All 7130LA25PFI 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 7130LA25PFI meets industry standards.
7.What is the process for return or replacement of 7130LA25PFI?
All 7130LA25PFI units undergo pre-shipment inspection (PSI). If there is an issue with 7130LA25PFI, 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 7130LA25PFI part is unused and in its original packaging.
Return procedure for 7130LA25PFI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130LA25PFI Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
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AT24C02C-SSHM-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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