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Renesas 7130LA20TFG8
- Part No.:
- 7130LA20TFG8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130LA20TFG8.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,774
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Product details
Overview
7130LA20TFG8 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, 20 ns maximum access time, 1 mW typical standby power, and battery-backed data retention down to 2 V. It enables concurrent asynchronous read/write access from left and right ports in real-time inter-processor communication systems.
For engineers reviewing the 7130LA20TFG8 datasheet, 7130LA20TFG8 pinout, 7130LA20TFG8 application, or 7130LA20TFG8 equivalent, this page delivers verified timing parameters, port arbitration behavior, BUSY/INT flag operation, dual-supply compatibility, and industrial temperature support (–40°C to +85°C) for deterministic memory coherency in embedded control subsystems.
Technical Context
The 7130LA20TFG8 implements fully independent left/right address, control, and I/O buses with separate CE/OE/R/W signals per port. Its on-chip arbitration logic resolves contention via BUSY output assertion when address matches occur, requiring tAPS ≥ 5 ns setup to guarantee deterministic priority.
As a MASTER-only device, it features open-drain BUSYL/BUSYR outputs (pull-up required), INTL/INTR interrupt flags for port-to-port signaling, and supports battery backup mode with 2 V VCC retention - a capability absent in SLAVE IDT7140 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 1K × 8 (1024 words × 8 bits), dual-port architecture enabling simultaneous access from two independent buses |
| Access Time (tAA) | 20 ns max - guarantees sub-50 MHz sustained read throughput per port without wait states |
| Standby Current (ISB3) | 0.2 µA typical - enables ultra-low-power retention during system sleep using external 2 V battery |
| Operating Voltage | 4.5 V to 5.5 V - compatible with standard TTL/CMOS 5 V logic families and industrial power rails |
| Temperature Range | –40°C to +85°C - qualified for industrial-grade embedded applications without derating |
| Bus Arbitration | Hardware-based port-to-port arbitration with BUSY flag and 5 ns priority setup (tAPS) - eliminates need for external glue logic |
| Data Retention | 2.0 V minimum - maintains memory state during main supply brownout or controlled shutdown |
Pinout & Package
7130LA20TFG8 is packaged in a 48-pin TQFP (Thin Quad Flat Package) with 0.5 mm pitch, body size 7 mm × 7 mm × 1.4 mm, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A9L | Left port address inputs | 10-bit address bus for left-side memory access; decoded internally to select one of 1024 locations |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit data path; direction controlled by R/WL and OEL; high-impedance when disabled |
| CEL, OEL, R/WL | Left port control enables | Chip Enable, Output Enable, Read/Write control - fully asynchronous operation per port |
| BUSYL, INTL | Left port status flags | BUSYL is open-drain arbitration output; INTL is push-pull interrupt flag for port-to-port signaling |
| A0R–A9R, I/O0R–I/O7R | Right port address/data | Mirrored functional set for independent right-side access; identical timing and electrical specs |
| CER, OER, R/WR | Right port control enables | Asynchronous enable set - no shared clocks or synchronization required between ports |
| BUSYR, INTR | Right port status flags | BUSYR open-drain output; INTR push-pull interrupt - supports full-duplex inter-processor handshaking |
| VCC, GND | Power supply | Single 5 V ±10% supply; all VCC pins must be decoupled locally; all GND pins tied to common ground plane |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous access to same address without external logic; asserts BUSY within 20 ns (tBAA) to block conflicting writes |
| Port-to-port interrupt signaling | INTL/INTR flags enable hardware-level event notification between processors - eliminates polling overhead |
| 2 V data retention mode | Preserves memory contents during main supply loss; draws only 100–4000 µA at 2 V - suitable for battery-backed control registers |
| Open-drain BUSY outputs | Allows wired-OR connection of multiple 7130LA devices for scalable multi-master arbitration networks |
| Industrial temperature qualification | Guaranteed 20 ns access and full functionality across –40°C to +85°C ambient - validated per MIL-PRF-38535 QML |
Applications
| Real-Time Motor Control | Dual-Core Processor Interfacing |
|---|---|
Use Scenario: Two independent motion controllers share position/velocity data in closed-loop servo drives with <1 µs latency tolerance. IC Role / Device Role / Timing Role: 7130LA20TFG8 acts as deterministic shared memory buffer with hardware arbitration preventing write collisions during trajectory updates. Use Value: Eliminates software semaphores and reduces inter-core handshake latency to ≤25 ns (tBDD), enabling 20 kHz current loop execution. | Use Scenario: ARM Cortex-M7 and RISC-V application processor exchange sensor fusion results and command queues in automotive ADAS domain controller. IC Role / Device Role / Timing Role: 7130LA20TFG8 serves as MASTER port memory with INTL/INTR flags triggering DMA transfers upon data readiness. Use Value: Achieves zero-wait-state 20 ns reads per core, sustaining 100 MB/s aggregate bandwidth while maintaining cache coherency. |
| Redundant Safety PLC | Avionics Data Concentrator |
Use Scenario: Dual-channel safety PLCs perform lockstep comparison of I/O states; mismatch triggers fail-safe shutdown. IC Role / Device Role / Timing Role: 7130LA20TFG8 stores mirrored I/O images with BUSY arbitration ensuring atomic cross-check writes. Use Value: Guarantees synchronized memory update across channels - meets SIL-3 requirements with <5 ns arbitration jitter. | Use Scenario: Flight management system aggregates ARINC 429, discrete I/O, and analog sensor data for cockpit display rendering. IC Role / Device Role / Timing Role: 7130LA20TFG8 buffers time-critical telemetry packets with 2 V retention preserving last-known-good state during power transients. Use Value: Maintains 100% data integrity during 100 ms brownouts - certified for DO-254 Level A hardware design assurance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C024AV-20AXC | 2K × 16 organization, 3.3 V core, no battery retention, 20 ns access, integrated busy logic | Requires level-shifting for 5 V systems; lacks 2 V data retention; larger memory width suits wider bus architectures | Select when migrating to 3.3 V domains or needing >1K depth; verify BUSY timing compatibility with existing arbitration firmware |
| IDT7140LA20TFG8 | SLAVE-only variant; BUSY pins are inputs (not outputs); no on-chip arbitration; identical 20 ns speed and 2 V retention | Must be paired with IDT7130LA as MASTER; used only in expanded 16-bit+ data bus configurations | Choose only as companion to 7130LA20TFG8 in 16-bit memory systems; not standalone-replaceable |
Compared with CY7C024AV-20AXC and IDT7140LA20TFG8, the 7130LA20TFG8 uniquely combines MASTER arbitration, 5 V compatibility, and 2 V battery retention - making it irreplaceable in legacy industrial controllers requiring deterministic fault-tolerant memory sharing without voltage translation or external arbitration logic.
Availability
7130LA20TFG8 is available at Aetrix Electronics and suitable for real-time motor control, dual-core processor interfacing, redundant safety PLCs, and avionics data concentrators requiring stable component supply across extended product lifecycles.
Supply support for 7130LA20TFG8 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 IDT7130/7140 family was designed specifically for deterministic inter-processor communication in hard real-time systems - emphasizing low-latency arbitration, dual-voltage operation, and industrial reliability over raw density or cost-per-bit.
FAQ
What is the guaranteed maximum access time for 7130LA20TFG8 across its full industrial temperature range?
The 7130LA20TFG8 guarantees a maximum address access time (tAA) of 20 ns over the full –40°C to +85°C operating temperature range, as specified in Table 09a of the official IDT datasheet revision Jul.12.21. This value applies to both left and right ports under VCC = 5.0 V ±10% and includes worst-case process, voltage, and temperature corners - no derating required for industrial use.
Does 7130LA20TFG8 support true simultaneous read/write operations on both ports without arbitration delay?
Yes - the 7130LA20TFG8 permits fully asynchronous read/write operations on left and right ports simultaneously, provided addresses differ. When addresses match, on-chip arbitration asserts BUSYL/BUSYR within 20 ns (tBAA) to block the lower-priority write, ensuring deterministic resolution without external logic. The 5 ns arbitration priority setup (tAPS) must be met to guarantee which port wins.
Can 7130LA20TFG8 retain data when main VCC drops to 2.0 V, and what is the maximum current draw in that mode?
Yes - the LA suffix denotes low-power battery backup capability. At VCC = 2.0 V, the 7130LA20TFG8 retains data with ICCDR ≤ 4000 µA (military/industrial grade) or ≤ 1500 µA (commercial grade), as specified in Table 07. This mode requires CE held high and applies only to the LA variant; SA versions lack this feature entirely.
How are BUSYL and BUSYR configured on 7130LA20TFG8, and what external components do they require?
BUSYL and BUSYR are open-drain outputs on the 7130LA20TFG8 (MASTER device), requiring external pull-up resistors to VCC. Typical values are 4.7 kΩ for 5 V systems. These signals go LOW during address contention to inhibit writes on the affected port. In contrast, IDT7140 SLAVE devices have BUSY pins as inputs only - confirming 7130LA20TFG8's exclusive MASTER role.
Is 7130LA20TFG8 pin-compatible with other members of the IDT7130/7140 family, such as the 7130SA20TFG8?
Yes - all IDT7130/7140 devices in the 48-pin TQFP package (e.g., 7130SA20TFG8, 7140LA20TFG8) share identical pinouts and mechanical footprints. However, electrical behavior differs: SA variants lack 2 V retention, and 7140 devices have BUSY as inputs only. Thus, 7130LA20TFG8 is functionally pin-compatible but not electrically drop-in replaceable without verifying retention and arbitration requirements.
7130LA20TFG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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 (10x10)
7130LA20TFG8 FAQ
1.How can I place an order for 7130LA20TFG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130LA20TFG8 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 7130LA20TFG8 reliable?
The price and inventory of 7130LA20TFG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130LA20TFG8 is usually 5 days.
3.What payment methods are accepted for 7130LA20TFG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130LA20TFG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130LA20TFG8?
7130LA20TFG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130LA20TFG8 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 7130LA20TFG8?
For technical support, including 7130LA20TFG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130LA20TFG8 requirements.
6.How does Aetrix verify that 7130LA20TFG8 is sourced from the original manufacturer or authorized distributors?
All 7130LA20TFG8 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 7130LA20TFG8 meets industry standards.
7.What is the process for return or replacement of 7130LA20TFG8?
All 7130LA20TFG8 units undergo pre-shipment inspection (PSI). If there is an issue with 7130LA20TFG8, 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 7130LA20TFG8 part is unused and in its original packaging.
Return procedure for 7130LA20TFG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130LA20TFG8 Tags
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AT24C02C-XHM-T
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