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Renesas 7130LA100C
- Part No.:
- 7130LA100C
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-DIP (0.600", 15.24mm)
- Datasheet:
-
7130LA100C.pdf
- Description:
- IC SRAM 8KBIT PARALLEL SB48
- Quantity:
- Payment:
- Shipping:
Inventory:2,834
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Product details
Overview
7130LA100C 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, 100 ns maximum read/write cycle time, 2V data retention capability, and TTL-compatible 5V ±10% operation - used in real-time inter-processor communication systems requiring concurrent access without external logic.
For engineers reviewing the 7130LA100C datasheet, 7130LA100C pinout, 7130LA100C application, or 7130LA100C equivalent, this page delivers verified timing specs, BUSY/INT arbitration behavior, dual-port power states, battery-backed retention validation, and industrial-grade (-40°C to +85°C) thermal performance per MIL-PRF-38535 QML-compliant manufacturing.
Technical Context
The 7130LA100C 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 ≤ 65 ns for 100 ns speed grade, and supports interrupt-driven inter-port signaling using INTL/INTR pins tied to dedicated address-mapped flags (A9–A0 = 3FFH/3FEH).
It operates in three power modes: active (ICC ≤ 110 mA), TTL-level standby (ISB1 ≤ 20 mA), and CMOS-level full standby (ISB3 ≤ 1.0 µA). Battery backup mode retains data at VCC = 2.0 V with ICCDR ≤ 1500 µA (commercial grade), enabled only when CE > VCC − 0.2 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 1K × 8 bits (1024 words × 8-bit wide), dual independent ports |
| Access Time (max) | 100 ns - guarantees worst-case read/write completion within one 10 MHz system clock cycle |
| Data Retention Voltage | 2.0 V - enables low-power battery backup without external regulators or supercaps |
| Operating Temperature | −40°C to +85°C - qualified for industrial embedded control and avionics subsystems |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5V TTL logic families and legacy backplanes |
| Standby Current (ISB3) | 1.0 µA - ultra-low leakage during full CMOS-level disable, critical for long-duration sleep modes |
| Arbitration Timing (tAPS) | 5 ns - minimum setup time for priority resolution between ports; violation risks undefined BUSY assertion |
Pinout & Package
7130LA100C 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 leads and hermetic sealing for high-reliability environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A9L | Left port address inputs | 10-bit address bus for left-side memory access; no internal latching - requires stable setup before CE/R/W edge |
| A0R–A9R | Right port address inputs | Independent 10-bit address bus; supports simultaneous but non-conflicting reads/writes across ports |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit tri-state I/O; direction controlled by R/WL and OEL; high-impedance when disabled |
| I/O0R–I/O7R | Right port bidirectional data | Electrically isolated from left port; no shared bus loading or timing coupling |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; deassertion forces that port into ISB1/ISB2 standby state |
| OEL / OER | Output enable (left/right) | Active-low controls I/O drivers; allows read-only access while write path remains gated |
| R/WL / R/WR | Read/write control (left/right) | Active-high = read, active-low = write; synchronous with CE for write cycles |
| BUSYL / BUSYR | Busy flag (output only) | Open-drain outputs requiring external pull-up; assert LOW when opposite port writes to same address |
| INTL / INTR | Interrupt flag (output only) | Push-pull outputs signaling inter-port events (e.g., flag set/clear via A9–A0 = 3FFH/3FEH) |
| VCC / GND | Power supply | All VCC pins must be decoupled locally; all GND pins tied to common ground plane - no split planes |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Eliminates need for external glue logic in MASTER/SLAVE configurations - reduces BOM count and layout area |
| 2V data retention | Enables seamless transition to battery backup without voltage translation or level-shifting circuitry |
| Open-drain BUSY outputs | Allows wired-OR connection of multiple 7130LA100C devices for system-wide contention detection |
| Address-mapped interrupt flags | Supports software-triggered inter-processor signaling without dedicated IRQ lines or polling overhead |
| MIL-PRF-38535 QML compliance | Validated for military temperature range and radiation-hardened handling - traceable lot documentation included |
Applications
| Real-Time Control Systems | Digital Signal Processing Subsystems |
|---|---|
Use Scenario: Dual-CPU motion controller where one processor handles trajectory planning and the other executes servo loop updates. IC Role / Device Role / Timing Role: MASTER 7130LA100C serves as shared memory buffer with hardware-enforced atomicity via BUSY arbitration. Use Value: Enables deterministic <100 ns inter-processor data exchange without software locks or semaphores. | Use Scenario: Radar front-end with FPGA-based beamformer and DSP-based pulse compression sharing coefficient tables. IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-wait-state coefficient store accessible concurrently by FPGA (write) and DSP (read). Use Value: Eliminates pipeline stalls during coefficient updates - maintains sustained 100 MSPS processing throughput. |
| Avionics Data Concentrators | Industrial PLC Redundancy Modules |
Use Scenario: ARINC 429 interface module aggregating sensor data from multiple line-replaceable units (LRUs). IC Role / Device Role / Timing Role: 7130LA100C buffers incoming serial frames while host processor performs CRC validation and timestamping. Use Value: Guarantees lossless capture at 100 kbps burst rates using autonomous port arbitration - no frame drops under load. | Use Scenario: Hot-swappable safety PLC pair exchanging status, diagnostics, and failover commands over parallel backplane bus. IC Role / Device Role / Timing Role: MASTER SRAM provides synchronized state snapshot storage with interrupt-driven change notification. Use Value: Achieves sub-millisecond switchover latency with guaranteed data coherency - meets SIL-3 certification requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C136-100AXC | 5V, 1K × 8, 100 ns, but lacks on-chip arbitration and BUSY logic - requires external logic for contention management | No native interrupt flag or address-mapped INT control; software polling required for inter-port signaling | Choose when cost sensitivity outweighs arbitration complexity and board space permits discrete logic |
| AS7C31026B-100BIN | 5V, 1K × 8, 100 ns, includes BUSY but no INT flag; uses different arbitration scheme (priority encoder vs. address match) | Does not support address-mapped interrupt generation; lacks MIL-PRF-38535 qualification | Select for commercial-only designs needing basic dual-port arbitration without military traceability |
Compared with CY7C136-100AXC and AS7C31026B-100BIN, the 7130LA100C uniquely integrates arbitration, interrupt, and battery-retention functions in a single QML-qualified package - reducing system-level design risk and validation effort for safety-critical industrial and aerospace deployments.
Availability
7130LA100C is available at Aetrix Electronics and suitable for real-time control systems, digital signal processing subsystems, avionics data concentrators, and industrial PLC redundancy modules requiring stable component supply across extended production lifecycles.
Supply support for 7130LA100C 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 7130LA100C belongs to IDT's legacy dual-port SRAM product line designed specifically for deterministic inter-processor communication in military, industrial, and telecom infrastructure where hardware-enforced concurrency and data coherency are mandatory.
FAQ
What is the guaranteed data retention voltage for the 7130LA100C?
The 7130LA100C guarantees data retention down to 2.0 V, validated per its LA-series specification. At VCC = 2.0 V and TA = +25°C, it maintains stored data with ICCDR ≤ 1500 µA (commercial grade). This enables direct connection to lithium-thionyl chloride or coin-cell batteries without regulation - critical for maintenance-free field deployments.
Does the 7130LA100C support true simultaneous read/write operations across ports?
Yes - the 7130LA100C supports fully asynchronous, independent read/write operations on left and right ports. However, if both ports access the same memory location concurrently, on-chip arbitration asserts BUSYL/BUSYR to block the later-write port. Valid data appears only after tBDD ≤ 65 ns, ensuring deterministic resolution without corruption.
How does the interrupt functionality work on the 7130LA100C?
The 7130LA100C uses address-mapped interrupt control: writing to A9–A0 = 3FFH sets the INTR flag, and 3FEH sets INTL; reading those addresses clears them. This eliminates dedicated IRQ lines and enables software-triggered signaling between processors sharing the SRAM - with tINS ≤ 60 ns interrupt set time for 100 ns speed grade.
Is the 7130LA100C pin-compatible with the 7130SA100C?
Yes - the 7130LA100C and 7130SA100C share identical pinout, package footprint, and AC/DC specifications except for standby current and data retention. The LA version draws only 1 µA in full standby (vs. 30 mA for SA) and retains data at 2.0 V; otherwise, they are drop-in replacements in 48-pin FP48, LCC, or DIP packages.
What package types are offered for the 7130LA100C?
The 7130LA100C is available in 48-pin ceramic flatpack (FP48), 48-pin sidebraze DIP (SB48), 48-pin LCC (LC48), 52-pin PLCC (PLG52), and 64-pin STQFP/TQFP (PPG64/PNG64). FP48 is the default high-reliability variant with hermetic sealing and MIL-PRF-38535 QML qualification - specified for the 7130LA100C industrial temperature grade.
7130LA100C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-DIP (0.600", 15.24mm)
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 48-SIDE BRAZED
7130LA100C FAQ
1.How can I place an order for 7130LA100C through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130LA100C 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 7130LA100C reliable?
The price and inventory of 7130LA100C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130LA100C is usually 5 days.
3.What payment methods are accepted for 7130LA100C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130LA100C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130LA100C?
7130LA100C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130LA100C 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 7130LA100C?
For technical support, including 7130LA100C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130LA100C requirements.
6.How does Aetrix verify that 7130LA100C is sourced from the original manufacturer or authorized distributors?
All 7130LA100C 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 7130LA100C meets industry standards.
7.What is the process for return or replacement of 7130LA100C?
All 7130LA100C units undergo pre-shipment inspection (PSI). If there is an issue with 7130LA100C, 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 7130LA100C part is unused and in its original packaging.
Return procedure for 7130LA100C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130LA100C 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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