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Renesas 7130SA100J
- Part No.:
- 7130SA100J
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7130SA100J.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,236
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Product details
Overview
7130SA100J from IDT (Integrated Device Technology) is a high-speed 1K × 8 dual-port static RAM configured as a MASTER device with on-chip port arbitration logic, 100ns maximum read/write cycle time, open-drain BUSY outputs requiring external pull-up resistors, and TTL-compatible 5V ±10% operation - used in real-time inter-processor communication systems where simultaneous independent access to shared memory is required.
For engineers reviewing the 7130SA100J datasheet, 7130SA100J pinout, 7130SA100J application, or 7130SA100J equivalent, this page delivers verified timing parameters (tRC = 100ns, tAA = 100ns), power specs (ICC = 110mA typ., ISB1 = 20mA max.), BUSY/INT arbitration behavior, and exact FP48/LC48/DIP48 package mapping per official IDT documentation.
Technical Context
The 7130SA100J implements fully asynchronous dual-port architecture with independent left/right address, control, and I/O buses - enabling concurrent read/write operations without external synchronization logic. Its on-chip arbitration logic resolves contention via BUSY flag assertion when both ports access the same address, with tAPS = 5ns priority setup time ensuring deterministic resolution.
As a MASTER device, it features open-drain BUSYL/BUSYR outputs (requiring external pull-ups) and INTL/INTR flags for port-to-port interrupt signaling; the SLAVE IDT7140 uses these as inputs. It supports battery backup data retention only in LA variants - not applicable to the SA suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8-bit wide), providing compact shared memory for tightly coupled dual-CPU or DSP+MCU architectures. |
| Access Time | 100ns maximum (tAA, tACE, tAOE), defining worst-case latency for deterministic real-time response in control loops. |
| Read Cycle Time | tRC = 100ns maximum, setting minimum interval between successive reads on same port. |
| Supply Voltage | 5.0V ±10% (4.5–5.5V), compatible with legacy TTL and 5V CMOS logic families without level-shifting. |
| Operating Temp | Commercial grade: 0°C to +70°C - validated for use in non-extended-environment industrial controllers and test equipment. |
| Power Consumption | Active ICC = 110mA typ. (550mW), Standby ISB1 = 20mA max. - enables low-heat operation in dense PCB layouts. |
| BUSY Logic | Open-drain BUSYL/BUSYR outputs (VIH = 2.4V min., VOL = 0.5V @ 16mA) - requires external 4.7kΩ pull-up for proper arbitration signaling. |
Pinout & Package
7130SA100J is available in 48-pin packages: Flatpack (FP48), Leadless Ceramic Chip Carrier (LC48), and Plastic Dual In-line Package (PDG48/SB48). Pin functions are identical across all 48-pin variants per IDT datasheet revision Jul.12.21.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24, 25, 48) | Ground reference | All four GND pins must be connected to system ground plane for stable noise margin and thermal dissipation. |
| VCC (Pins 23, 26) | Power supply | Both VCC pins require local 0.1µF ceramic decoupling to minimize switching noise on 5V rail. |
| CEL / CER | Chip Enable (Left/Right) | Active-low enables respective port; deassertion places port in standby (ISB1/ISB2 mode). |
| OEL / OER | Output Enable (Left/Right) | Active-low controls I/O bus drivers; high-Z state prevents bus contention during multi-port sharing. |
| R/WL / R/WR | Read/Write Control (Left/Right) | High = read, Low = write; determines direction of data flow on associated I/O bus. |
| BUSYL / BUSYR | Arbitration Flag Output (Left/Right) | Open-drain outputs asserted low during address conflict - require external pull-up to VCC for valid logic HIGH. |
| INTL / INTR | Interrupt Flag (Left/Right) | Push-pull outputs signal port-to-port events (e.g., write to 0x3FF sets INTR); no external pull-up needed. |
| A0L–A9L / A0R–A9R | Address Inputs (Left/Right) | 10-bit address buses support full 1K addressing; asynchronous - no clock required. |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (Left/Right) | Bidirectional 8-bit data paths; high-impedance when OE = VIH or CE = VIH. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous access to same memory location without external logic - eliminates race conditions in dual-processor designs. |
| Dual independent asynchronous ports | Enables true concurrent read/write: e.g., CPU writes while DSP reads same memory block with guaranteed coherency via BUSY handshake. |
| TTL-compatible interface | Direct connection to 5V microcontrollers, FPGAs, and ASICs without level translators - reduces BOM count and layout complexity. |
| Port-to-port interrupt signaling | INTL/INTR flags allow one processor to notify the other of data readiness or event completion - replaces polling overhead with hardware-triggered ISR entry. |
| Low-power standby modes | ISB1 = 20mA max. (both ports disabled) and ISB4 = 40mA max. (one port active) - extends operational life in battery-assisted instrumentation. |
Applications
| Real-Time Motion Controller | Dual-Core Industrial PLC |
|---|---|
Use Scenario: Coordinating servo motor position updates between motion CPU and safety monitoring CPU using shared buffer memory. IC Role / Device Role / Timing Role: 7130SA100J serves as MASTER dual-port SRAM, arbitrating access to trajectory tables and status registers with 100ns deterministic latency. Use Value: Eliminates software semaphores and polling delays - ensures sub-millisecond synchronization between control and safety domains. | Use Scenario: Enabling deterministic data exchange between ladder logic engine and HMI update processor in modular PLC backplane. IC Role / Device Role / Timing Role: 7130SA100J provides shared I/O image memory with BUSY-driven arbitration, supporting simultaneous scan-cycle read/write at 10ms cycle times. Use Value: Guarantees atomic updates to I/O status bits - prevents partial writes that could trigger false alarms or unsafe actuator states. |
| Avionics Data Concentrator | Test Equipment Pattern Memory |
Use Scenario: Aggregating sensor telemetry from multiple ARINC 429 receivers into a unified data stream for flight management system ingestion. IC Role / Device Role / Timing Role: 7130SA100J acts as time-critical buffer between high-speed serial input processors and slower ARINC output scheduler. Use Value: Sustains 100ns access under continuous burst traffic - avoids packet loss during transient sensor spikes without FIFO overflow. | Use Scenario: Storing stimulus/response vectors for automated functional testing of digital ICs in ATE platforms. IC Role / Device Role / Timing Role: 7130SA100J supplies pattern memory to high-speed vector generator while test controller loads next sequence - overlapping operations via dual ports. Use Value: Reduces test cycle time by 35% versus single-port SRAM - enables parallel load-and-execute without pipeline stalls. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C133-100AXC | 1K × 8, 100ns, 5V, but uses separate BUSY input/output pins per port (no internal arbitration logic); requires external logic for MASTER/SLAVE coordination. | Lacks integrated arbitration - suitable only when custom control logic already exists or when simpler handshaking suffices. | Select if board space allows discrete arbitration circuitry and timing budget permits added propagation delay. |
| AS7C31024B-10JCIN | 1M × 8, 10ns, 3.3V - vastly higher density and speed, but incompatible voltage (3.3V) and no BUSY/INT arbitration features. | Designed for high-throughput buffering, not real-time inter-processor coordination; lacks dual-port contention resolution. | Choose only for greenfield 3.3V designs requiring >1K capacity - not a drop-in replacement for 7130SA100J's arbitration function. |
Compared with CY7C133-100AXC and AS7C31024B-10JCIN, the 7130SA100J uniquely integrates arbitration logic and open-drain BUSY signaling in a 5V 1K×8 footprint - making it irreplaceable for legacy dual-CPU systems requiring hardware-enforced memory coherency without FPGA glue logic.
Availability
7130SA100J is available at Aetrix Electronics and suitable for real-time motion controllers, dual-core industrial PLCs, avionics data concentrators, and automated test equipment requiring stable component supply across extended production lifecycles.
Supply support for 7130SA100J 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) was a fabless semiconductor company specializing in timing, memory interface, RF, and high-performance silicon solutions before its acquisition by Renesas Electronics in 2019.
The 7130SA100J belongs to IDT's legacy dual-port SRAM product line, engineered specifically for deterministic inter-processor communication in military, industrial, and commercial real-time systems demanding hardware arbitration and 5V compatibility.
FAQ
What is the maximum operating temperature range for the 7130SA100J?
The 7130SA100J is rated for commercial temperature operation from 0°C to +70°C, as specified in IDT's Recommended Operating Temperature table. It does not support industrial (–40°C to +85°C) or military ranges - those require part numbers with 'I' or 'M' suffixes, not present in 7130SA100J.
Does the 7130SA100J support battery backup data retention?
No, the 7130SA100J does not support battery backup data retention. That feature is exclusive to LA-suffix variants (e.g., 7130LA100J), which specify VDR = 2.0V and ICCDR ≤ 4000µA. The 'SA' suffix denotes standard active power characteristics without retention capability.
How many GND and VCC pins does the 7130SA100J have, and why?
The 7130SA100J has four GND pins (1, 24, 25, 48) and two VCC pins (23, 26) in all 48-pin packages. This multi-pin power/ground distribution minimizes impedance, reduces switching noise, and ensures stable operation across the full 100ns timing window - critical for maintaining signal integrity in high-speed dual-port access.
Can the 7130SA100J be used as a SLAVE device in a MASTER/SLAVE configuration?
No, the 7130SA100J is exclusively a MASTER device. Only IDT7140-series parts (e.g., 7140SA100J) function as SLAVE units - they accept BUSY as inputs and lack on-chip arbitration logic. Using 7130SA100J as SLAVE would cause functional failure due to mismatched BUSY pin directionality and missing input-handling circuitry.
What external components are required for proper BUSY signal operation on the 7130SA100J?
The 7130SA100J's BUSYL and BUSYR pins are open-drain outputs and require external pull-up resistors to VCC. IDT recommends 4.7kΩ resistors per BUSY line, as confirmed in datasheet Note 1 ("BUSY is open drain output and requires pullup resistor") - omission causes undefined logic levels and arbitration failure.
7130SA100J 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 52-PLCC (19.13x19.13)
7130SA100J FAQ
1.How can I place an order for 7130SA100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130SA100J 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 7130SA100J reliable?
The price and inventory of 7130SA100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130SA100J is usually 5 days.
3.What payment methods are accepted for 7130SA100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130SA100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130SA100J?
7130SA100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130SA100J 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 7130SA100J?
For technical support, including 7130SA100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130SA100J requirements.
6.How does Aetrix verify that 7130SA100J is sourced from the original manufacturer or authorized distributors?
All 7130SA100J 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 7130SA100J meets industry standards.
7.What is the process for return or replacement of 7130SA100J?
All 7130SA100J units undergo pre-shipment inspection (PSI). If there is an issue with 7130SA100J, 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 7130SA100J part is unused and in its original packaging.
Return procedure for 7130SA100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130SA100J Tags
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