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Renesas 7130LA100JI
- Part No.:
- 7130LA100JI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7130LA100JI.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,338
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Product details
Overview
7130LA100JI 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, 100ns maximum read/write cycle time, 1μA full-standby current (CMOS-level CE), and battery-backed data retention down to 2V - used in real-time embedded systems requiring concurrent left/right port access without external logic.
For engineers reviewing the 7130LA100JI datasheet, 7130LA100JI pinout, 7130LA100JI application, or 7130LA100JI equivalent, this page delivers verified timing parameters, dual-port arbitration behavior, BUSY/INT flag operation, industrial temperature support (–40°C to +85°C), and package-specific DC/AC electrical characteristics per MIL-PRF-38535 QML-compliant manufacturing.
Technical Context
The 7130LA100JI implements fully asynchronous dual-port operation with independent address, control, and I/O buses for left (L) and right (R) ports. Its on-chip arbitration logic resolves contention via BUSY output assertion when both ports access the same address, with tBDD ≤ 65ns (max) ensuring deterministic resolution.
It supports R/W-controlled and CE-controlled write cycles, open-drain BUSY/INT outputs requiring external pull-ups, and TTL-compatible 5V ±10% supply operation. The LA variant enables 2V battery backup with ICCDR ≤ 4000µA (military grade) and tCDR = 0ns chip deselect-to-retention transition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8-bit wide), enabling compact dual-access buffer storage |
| Max Read Cycle Time | 100ns - defines minimum interval between successive reads on same port |
| Full Standby Current | 1μA (ISB3, CMOS-level CE) - enables ultra-low-power battery hold mode |
| Data Retention Voltage | 2.0V minimum - guarantees nonvolatile data preservation during main power loss |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade reliability in harsh environments |
| Supply Voltage | 4.5V to 5.5V - compatible with standard 5V TTL logic rails and noise margins |
| BUSY Timing (tBDD) | ≤65ns - maximum delay from BUSY deassertion to valid read data, critical for real-time response |
Pinout & Package
7130LA100JI is supplied in a 48-pin ceramic flatpack (FP48) package measuring approximately 0.75″ × 0.75″ × 0.11″, with 2×24 pin grid, gull-wing leads, and hermetic sealing for military/industrial use.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A9L | Left port address inputs | 10-bit address bus selecting one of 1024 memory locations for left-side access |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit data path supporting concurrent read/write with right port under arbitration |
| CEL, OEL, R/WL | Left port controls | Chip enable, output enable, and read/write direction - fully asynchronous with no clock required |
| BUSYL, INTL | Left port open-drain flags | BUSYL signals address contention; INTL provides port-to-port interrupt - both require external pull-up |
| A0R–A9R | Right port address inputs | Independent 10-bit address space mirroring left port for true dual-port concurrency |
| I/O0R–I/O7R | Right port bidirectional data | Electrically isolated data path allowing simultaneous left/right transfers when addresses differ |
| CER, OER, R/WR | Right port controls | Functionally identical to left controls but with separate timing domains and arbitration coupling |
| BUSYR, INTR | Right port open-drain flags | BUSYR mirrors BUSYL behavior; INTR enables cross-port event signaling without software polling |
| VCC, GND | Power supply pins | Multiple VCC/GND pairs distributed across package to minimize switching noise and ground bounce |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Eliminates need for external priority encoders or glue logic in MASTER/SLAVE configurations |
| Open-drain BUSY/INT outputs | Enables wired-OR interrupt sharing across multiple dual-port devices on common bus lines |
| 2V data retention mode | Preserves memory contents during brown-out or controlled power-down without external backup circuitry |
| TTL-compatible 5V operation | Direct interface with legacy microcontrollers, FPGAs, and ASICs without level-shifting |
| MIL-PRF-38535 QML compliance | Guarantees screening, testing, and traceability for defense/aerospace applications |
Applications
| Real-Time Digital Signal Processing | Industrial Motion Control |
|---|---|
Use Scenario: Simultaneous acquisition of sensor data on one port while feeding processed output to motor drivers on the other port. IC Role / Device Role / Timing Role: MASTER dual-port SRAM acting as zero-latency ping-pong buffer between ADC and PWM subsystems. Use Value: Eliminates CPU intervention in data handoff, reducing jitter to <100ns and enabling deterministic 10kHz servo loop execution. | Use Scenario: Coordinating position feedback from encoders and command updates from PLC over shared memory without bus contention. IC Role / Device Role / Timing Role: Arbitrated memory hub synchronizing motion trajectory tables between controller and drive firmware. Use Value: Prevents write collisions during rapid setpoint changes, ensuring position integrity even at 20kHz update rates. |
| Avionics Data Concentrators | Redundant Communication Gateways |
Use Scenario: Aggregating ARINC 429 and MIL-STD-1553 messages from multiple line-replaceable units into unified health telemetry. IC Role / Device Role / Timing Role: Dual-port buffer isolating legacy avionics buses from high-speed backplane interfaces. Use Value: Enables time-stamped message correlation with sub-microsecond timestamp alignment across dissimilar protocols. | Use Scenario: Maintaining synchronized configuration state between primary and backup communication processors in telecom base stations. IC Role / Device Role / Timing Role: Fault-tolerant shared memory with automatic BUSY-based write inhibition during failover transitions. Use Value: Guarantees atomic state updates during switchover, preventing partial writes that could corrupt link-layer state machines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C131-100JC | 1K × 8, 100ns, 5V, but lacks on-chip arbitration and BUSY logic; requires external priority resolution | Suitable only in master-only or single-port-emulation designs; not drop-in for 7130LA100JI arbitration use cases | Select only if arbitration handled externally and footprint allows SOJ-28 vs FP48 |
| IDT7140LA100JI | SLAVE companion device: identical timing and retention, but BUSY pins are inputs only; no arbitration logic | Used exclusively with 7130LA100JI in 16-bit+ bus expansion; cannot operate standalone as MASTER | Required when scaling data width beyond 8 bits using MASTER/SLAVE topology |
Compared with CY7C131-100JC and IDT7140LA100JI, the 7130LA100JI uniquely integrates arbitration and dual-BUSY signaling - enabling autonomous conflict resolution without FPGA logic or discrete gates, while IDT7140LA100JI extends bandwidth but depends entirely on 7130LA100JI for coordination.
Availability
7130LA100JI is available at Aetrix Electronics and suitable for real-time digital signal processing, industrial motion control, avionics data concentrators, and redundant communication gateways requiring stable component supply across extended product lifecycles.
Supply support for 7130LA100JI 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.
The IDT7130/7140 family was designed specifically for deterministic, low-latency dual-port memory applications in military, aerospace, and industrial systems where concurrent access and hardware arbitration are mandatory.
FAQ
What is the guaranteed data retention voltage for 7130LA100JI?
The 7130LA100JI guarantees data retention down to 2.0V (VDR = 2.0V min) with ICCDR ≤ 4000µA under military-grade conditions (–55°C to +125°C ambient). This enables reliable operation during brown-out events or battery-backup scenarios without external supervision circuits. The 7130LA100JI retains full functionality upon VCC restoration without initialization overhead.
Does 7130LA100JI support true simultaneous read/write operations?
Yes - the 7130LA100JI supports fully asynchronous, independent read/write access on left and right ports. When addresses differ, both ports operate concurrently with no timing penalty. When addresses match, on-chip arbitration asserts BUSYL/BUSYR within ≤50ns to block the later-arriving write, ensuring data coherency without CPU intervention. This behavior is intrinsic to the 7130LA100JI's MASTER architecture.
What package type is used for 7130LA100JI and what are its mechanical dimensions?
The 7130LA100JI uses a 48-pin ceramic flatpack (FP48) package with hermetic sealing, measuring approximately 0.75 inch × 0.75 inch × 0.11 inch. It features gull-wing leads, 24 pins per side, and is qualified for MIL-PRF-38535 QML Class V screening - making it suitable for high-reliability applications where moisture resistance and thermal stability are critical.
How does the BUSY arbitration mechanism work in 7130LA100JI?
In the 7130LA100JI, BUSY arbitration activates when both ports attempt access to the same memory location. The port with earlier address/control setup wins; the delayed port sees BUSYL or BUSYR pulled low (open-drain), inhibiting its write cycle. tAPS = 5ns minimum ensures priority resolution, and tBDD ≤ 65ns defines the delay from BUSY deassertion to valid read data - all implemented in hardwired logic within the 7130LA100JI die.
Is 7130LA100JI pin-compatible with other members of the IDT7130/7140 family?
Yes - the 7130LA100JI shares identical FP48 pinout with all IDT7130 variants (e.g., 7130SA25JI, 7130LA35JI) and is electrically compatible with IDT7140LA100JI in SLAVE configuration. However, pin compatibility does not imply functional equivalence: only 7130-series parts contain arbitration logic and BUSY output capability, while 7140-series parts accept BUSY as input only.
7130LA100JI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 52-LCC (J-Lead)
- Packaging:
- Tube
- 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:
- 100ns
- Access Time:
- 100 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 52-PLCC (19.13x19.13)
7130LA100JI FAQ
1.How can I place an order for 7130LA100JI through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130LA100JI 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 7130LA100JI reliable?
The price and inventory of 7130LA100JI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130LA100JI is usually 5 days.
3.What payment methods are accepted for 7130LA100JI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130LA100JI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130LA100JI?
7130LA100JI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130LA100JI 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 7130LA100JI?
For technical support, including 7130LA100JI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130LA100JI requirements.
6.How does Aetrix verify that 7130LA100JI is sourced from the original manufacturer or authorized distributors?
All 7130LA100JI 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 7130LA100JI meets industry standards.
7.What is the process for return or replacement of 7130LA100JI?
All 7130LA100JI units undergo pre-shipment inspection (PSI). If there is an issue with 7130LA100JI, 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 7130LA100JI part is unused and in its original packaging.
Return procedure for 7130LA100JI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130LA100JI Tags
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M24C02-WMN6TP
STMicroelectronics
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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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