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Renesas 7130LA55PFI8
- Part No.:
- 7130LA55PFI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130LA55PFI8.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,460
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Product details
Overview
7130LA55PFI8 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, 55 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 communication systems.
For engineers reviewing the 7130LA55PFI8 datasheet, 7130LA55PFI8 pinout, 7130LA55PFI8 application, or 7130LA55PFI8 equivalent, this page delivers verified specifications, port-to-port arbitration timing, BUSY/INT flag behavior, low-power standby current (1 µA typical full standby), and exact package mapping for the 48-pin ceramic flatpack (FP48).
Technical Context
The 7130LA55PFI8 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 flag assertion when both ports access the same memory location, requiring tAPS ≥ 5 ns setup to guarantee deterministic priority.
As a MASTER-only device, it features open-drain BUSYL/BUSYR outputs (requiring external pull-ups), INTL/INTR interrupt flags for inter-port signaling, and supports battery backup mode with 2.0 V VCC retention - a capability exclusive to LA-grade variants and not present in SA versions.
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-width expansion logic |
| Access Time (tAA) | 55 ns max; guarantees valid data within 55 ns after address stabilization on either port |
| Operating Voltage | 5.0 V ±10% (4.5–5.5 V); TTL-compatible supply eliminates level-shifting in legacy 5 V systems |
| Temperature Range | –40°C to +85°C; qualified for industrial environments including motor drives and PLCs |
| Data Retention Voltage | 2.0 V minimum; enables nonvolatile operation during main power loss using backup battery |
| Full Standby Current (ISB3) | 0.2 µA typical; ultra-low leakage allows years of data retention on coin-cell batteries |
| Package | 48-pin ceramic flatpack (FP48); hermetically sealed, MIL-PRF-38535 QML-compliant for high-reliability applications |
Pinout & Package
48-pin ceramic flatpack (FP48), body size ≈ 0.75 in × 0.75 in × 0.11 in, hermetic seal, lead finish gold-plated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24, 25, 48) | Ground reference | All four pins must be connected to system ground plane for noise immunity and thermal stability |
| VCC (Pins 23, 26) | Power supply | Both pins require local 0.1 µF ceramic decoupling to suppress switching noise |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; deassertion places port in high-impedance or standby mode |
| OEL / OER | Output enable (left/right) | Active-low controls I/O drivers; high-Z when disabled, enabling bus sharing |
| R/WL / R/WR | Read/write control (left/right) | High = read, low = write; determines direction of data flow on I/O lines |
| BUSYL / BUSYR | Arbitration status (open-drain) | Low indicates port contention; requires external 4.7 kΩ pull-up to VCC per signal |
| INTL / INTR | Interrupt flag (open-drain) | Low indicates pending inter-port event; used for handshake-based synchronization |
| A0L–A9L / A0R–A9R | Address inputs (left/right) | 10-bit address buses support full 1K address space independently per port |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (bidirectional) | Byte-wide data paths; driven only when CE and OE are active low and R/W is asserted |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous access to identical addresses without external logic, reducing BOM count and PCB area |
| Open-drain BUSY/INT outputs | Enables wired-OR interrupt and BUSY signaling across multiple dual-port devices on shared buses |
| 2.0 V data retention | Maintains stored contents during brownout or main power failure, eliminating need for external NVSRAM or EEPROM |
| Independent port power-down | Allows one port to remain active while the other enters ISB2 standby (50 µA typ), optimizing dynamic power |
| MIL-PRF-38535 QML compliance | Qualified for aerospace and defense applications requiring radiation-hardened, high-reliability packaging |
Applications
| Real-Time Digital Signal Processing | Industrial Motion Control |
|---|---|
Use Scenario: Dual-core DSP system where one core writes sensor-acquired data while the other reads and processes it. IC Role / Device Role / Timing Role: MASTER 7130LA55PFI8 acts as shared buffer with deterministic arbitration, synchronizing data handoff between processing domains. Use Value: Eliminates software locks or polling overhead; 55 ns access ensures sub-microsecond latency for closed-loop control updates. | Use Scenario: PLC backplane with separate I/O processor and motion controller accessing common configuration and position tables. IC Role / Device Role / Timing Role: 7130LA55PFI8 serves as atomic register file, with BUSY flag preventing race conditions during parameter updates. Use Value: Prevents corrupted motion profiles during runtime reconfiguration; 2.0 V retention preserves critical axis parameters during power cycling. |
| Avionics Data Acquisition | Military Communications Hub |
Use Scenario: Flight computer acquiring analog sensor data via ADC and feeding processed telemetry to a secure comms module. IC Role / Device Role / Timing Role: 7130LA55PFI8 buffers raw and calibrated data streams across isolated safety-critical and mission-critical partitions. Use Value: Hermetic FP48 package withstands altitude-induced pressure differentials; QML qualification meets DO-254 design assurance requirements. | Use Scenario: Tactical radio with independent encryption engine and RF baseband processor exchanging keys and packet headers. IC Role / Device Role / Timing Role: 7130LA55PFI8 functions as secure mailbox with INTL/INTR flags triggering cryptographic key rotation events. Use Value: Open-drain interrupts allow multi-drop signaling across security boundaries; 0.2 µA ISB3 enables >10-year battery life in manpack radios. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1354V25-55AXI | 55 ns access, 1K × 16 organization, 3.3 V core, LVCMOS I/O; no built-in arbitration or BUSY logic | Requires external glue logic for contention resolution; suited for newer 3.3 V designs with wider data paths | Select when migrating to lower-voltage systems and willing to add discrete arbitration circuitry |
| IDT7140LA55PFI8 | Same 55 ns speed, 1K × 8, LA-grade retention, but SLAVE-only; lacks arbitration logic and has BUSY inputs instead of outputs | Must be paired with a MASTER (e.g., 7130LA55PFI8) to form 16-bit+ systems; cannot operate standalone | Choose only as companion device in MASTER/SLAVE configurations requiring expanded word width |
Compared with CY7C1354V25-55AXI and IDT7140LA55PFI8, the 7130LA55PFI8 uniquely integrates arbitration, operates at 5 V, and functions autonomously - making it optimal for legacy industrial and military systems where pin count, power voltage, and self-contained operation are critical.
Availability
7130LA55PFI8 is available at Aetrix Electronics and suitable for real-time digital signal processing, industrial motion control, avionics data acquisition, and military communications hub applications requiring stable component supply, long-term obsolescence management, and MIL-qualified reliability.
Supply support for 7130LA55PFI8 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), now part of Renesas Electronics, is a semiconductor company specializing in timing, memory interface, and RF solutions for high-performance computing and communications infrastructure.
The IDT7130/7140 family was designed specifically for deterministic, low-latency inter-processor communication in dual-CPU, DSP, and real-time control systems - emphasizing hardware arbitration, battery backup, and ruggedized packaging.
FAQ
What is the maximum access time specified for the 7130LA55PFI8?
The 7130LA55PFI8 has a maximum address access time (tAA) of 55 ns across its full industrial temperature range (–40°C to +85°C). This value is guaranteed under VCC = 5.0 V ±10% and applies to both left and right ports independently. The 55 ns rating reflects worst-case propagation through internal decode and sense-amplifier paths, ensuring deterministic timing for hard real-time systems.
Does the 7130LA55PFI8 support battery backup operation, and what voltage is required?
Yes, the 7130LA55PFI8 supports battery backup operation with a minimum VCC of 2.0 V for data retention. This feature is exclusive to LA-grade variants and is confirmed in Table 7 of the datasheet. At 2.0 V, the device retains stored data with ICCDR ≤ 4000 µA (military/industrial grade), enabling operation from primary power loss until backup battery depletion.
How does the BUSY arbitration mechanism work on the 7130LA55PFI8?
The 7130LA55PFI8 uses open-drain BUSYL and BUSYR outputs to signal port contention. When both ports attempt access to the same address, the device asserts BUSY on the lower-priority port based on tAPS (arbitration priority setup time ≥ 5 ns). The winning port proceeds; the losing port's write is inhibited, and its BUSY output pulls low - requiring an external pull-up resistor to function correctly.
What package type is used for the 7130LA55PFI8, and what are its key mechanical properties?
The 7130LA55PFI8 is packaged in a 48-pin ceramic flatpack (FP48), with dimensions approximately 0.75 in × 0.75 in × 0.11 in. It is hermetically sealed, MIL-PRF-38535 QML-qualified, and features gold-plated leads. This package provides superior thermal conductivity, moisture resistance, and long-term reliability compared to plastic alternatives - essential for aerospace and defense deployments.
Can the 7130LA55PFI8 be used as a standalone dual-port RAM, or does it require a companion SLAVE device?
The 7130LA55PFI8 is a MASTER-only dual-port SRAM and operates fully standalone - it does not require a companion SLAVE device. It includes on-chip arbitration logic, BUSY outputs, and interrupt flags. In contrast, the IDT7140 series (e.g., 7140LA55PFI8) is SLAVE-only and must be paired with a 7130 to implement 16-bit+ data paths or distributed arbitration topologies.
7130LA55PFI8 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:
- 55ns
- Access Time:
- 55 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)
7130LA55PFI8 FAQ
1.How can I place an order for 7130LA55PFI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130LA55PFI8 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 7130LA55PFI8 reliable?
The price and inventory of 7130LA55PFI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130LA55PFI8 is usually 5 days.
3.What payment methods are accepted for 7130LA55PFI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130LA55PFI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130LA55PFI8?
7130LA55PFI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130LA55PFI8 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 7130LA55PFI8?
For technical support, including 7130LA55PFI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130LA55PFI8 requirements.
6.How does Aetrix verify that 7130LA55PFI8 is sourced from the original manufacturer or authorized distributors?
All 7130LA55PFI8 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 7130LA55PFI8 meets industry standards.
7.What is the process for return or replacement of 7130LA55PFI8?
All 7130LA55PFI8 units undergo pre-shipment inspection (PSI). If there is an issue with 7130LA55PFI8, 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 7130LA55PFI8 part is unused and in its original packaging.
Return procedure for 7130LA55PFI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130LA55PFI8 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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M24C02-FMC6TG
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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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