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Renesas 7130SA20J
- Part No.:
- 7130SA20J
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7130SA20J.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,857
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Product details
Overview
7130SA20J from IDT is a high-speed 1K × 8 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, 20 ns maximum read cycle time, TTL-compatible 5V ±10% supply, and industrial temperature range (–40°C to +85°C). It enables error-free 16-bit-or-wider memory expansion when paired with IDT7140 SLAVE devices in real-time communication systems.
For engineers reviewing the 7130SA20J datasheet, 7130SA20J pinout, 7130SA20J application, or 7130SA20J equivalent, key selection criteria include BUSY flag timing (tBAA ≤ 20 ns), dual-port asynchronous access, master arbitration capability, low standby current (ISB1 = 30 mA typ.), and compatibility with 48-pin DIP/LCC/Flatpack packages.
Technical Context
The 7130SA20J implements fully independent left/right ports with separate address, data, and control lines (A0L–A9L/I/O0L–I/O7L/CEL/OEL/R/WL/BUSYL/INTL and A0R–A9R/I/O0R–I/O7R/CER/OER/R/WR/BUSYR/INTR), enabling concurrent read/write operations without external logic. Its on-chip arbitration logic resolves port contention via BUSY output assertion and supports priority-based access using tAPS = 5 ns setup time.
It operates asynchronously from either port with no clock required; BUSY outputs are open-drain (requiring external pull-up resistors), and INT flags support inter-port signaling. The device uses CMOS technology for 550 mW typical active power and enters low-power standby (5 mW typ.) when CE is deasserted.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8-bit wide), sufficient for compact buffer or register-file applications |
| Access Time | 20 ns max read cycle (tRC), enabling integration into 50 MHz bus systems with tight timing margins |
| Supply Voltage | 5.0 V ±10% (4.5–5.5 V), compatible with standard TTL logic families and legacy 5V systems |
| Operating Temp | –40°C to +85°C (industrial grade), validated for deployment in ruggedized embedded controllers |
| Active Current | 110 mA typical (ICC), supporting stable operation under sustained dual-port activity |
| Standby Current | 30 mA typical (ISB1, both ports disabled), reducing system-level power during idle intervals |
| BUSY Timing | tBAA ≤ 20 ns - ensures rapid detection of port contention for deterministic real-time arbitration |
Pinout & Package
7130SA20J is available in 48-pin ceramic flatpack (FP48), 48-pin LCC (LC48), and 48-pin plastic DIP (PDG48/SB48) packages. All variants share identical pin mapping and electrical behavior.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24, 25, 48) | Ground reference | Four dedicated ground pins minimize ground bounce and ensure signal integrity across both ports |
| VCC (Pins 23, 26) | Power supply | Dual VCC pins reduce IR drop and improve decoupling effectiveness for high-speed switching |
| CEL / CER | Chip enable (left/right) | Independent chip select allows selective activation of each port without affecting the other |
| OEL / OER | Output enable (left/right) | Controls tri-state output drivers; high-Z state prevents bus contention during inactive cycles |
| R/WL / R/WR | Read/write direction (left/right) | Active-high for read, active-low for write - matches standard SRAM interface conventions |
| BUSYL / BUSYR | Arbitration status (open-drain) | Indicates port contention; requires external pull-up resistor to function as active-low BUSY flag |
| INTL / INTR | Interrupt request (open-drain) | Signals inter-port events (e.g., flag set/reset); also requires external pull-up for proper logic level |
| A0L–A9L / A0R–A9R | Address inputs (10-bit each) | Two independent 10-bit address buses support full 1K-word addressing per port |
| I/O0L–I/O7L / I/O0R–I/O7R | Bi-directional data (8-bit each) | Separate 8-bit data paths eliminate multiplexing overhead and enable true parallel access |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Eliminates need for external priority encoder or glue logic in dual-CPU or DSP+host architectures |
| Master/slave expandability | Enables seamless 16-bit-or-wider data bus extension using IDT7140 SLAVE devices without speed penalty |
| Open-drain BUSY/INT outputs | Allows wired-OR connection of multiple devices for system-level resource arbitration or interrupt aggregation |
| Asynchronous dual-port operation | Supports independent clock domains - ideal for heterogeneous processor interfacing (e.g., ARM + FPGA) |
| TTL-compatible I/O | Direct interface with legacy microcontrollers, FPGAs, and ASICs without level-shifting circuitry |
Applications
| Real-Time Communication Bridge | Dual-Processor Shared Memory |
|---|---|
Use Scenario: Interfacing two independent UART or CAN controllers sharing a common message buffer. IC Role / Device Role / Timing Role: MASTER dual-port SRAM acts as synchronized mailbox with hardware-enforced mutual exclusion via BUSY signals. Use Value: Eliminates software semaphores and guarantees atomic read-modify-write cycles at 20 ns latency. | Use Scenario: Coordinating task execution between a main CPU and a safety-monitoring microcontroller. IC Role / Device Role / Timing Role: Provides non-blocking shared memory with deterministic arbitration for fault-tolerant failover protocols. Use Value: Enables sub-25 ns inter-processor signaling, meeting SIL-3 timing constraints in industrial safety PLCs. |
| Video Frame Buffer | DSP Algorithm Accelerator Interface |
Use Scenario: Storing pixel data for simultaneous capture (camera input) and display (LCD output) pipelines. IC Role / Device Role / Timing Role: Dual-port RAM buffers one frame while rendering the previous, synchronized by vertical blanking interrupts. Use Value: Achieves zero-frame-latency video streaming with no external FIFO or DMA controller required. | Use Scenario: Feeding coefficient tables and streaming sensor data to a fixed-point DSP performing real-time FFT analysis. IC Role / Device Role / Timing Role: Acts as low-latency parameter/data exchange hub between host MCU and DSP coprocessor. Use Value: Sustains 50+ MB/s bidirectional throughput with guaranteed 20 ns access, matching DSP internal bus bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C131-25JC | 25 ns access, 5V-only, no built-in arbitration logic; requires external BUSY management | Lacks master/slave expansion capability; limited to single 8-bit port use or external logic-based arbitration | Select when cost sensitivity outweighs arbitration convenience and timing margin permits 5 ns slower access |
| IDT7142S20YG | Same 20 ns speed, but SLAVE-only configuration; no BUSY output or arbitration logic | Cannot operate standalone; only usable as companion to 7130-series MASTER in expanded-width systems | Choose only when building 16-bit+ memory subsystems requiring matched timing and footprint with 7130SA20J |
Compared with CY7C131-25JC and IDT7142S20YG, the 7130SA20J uniquely delivers integrated arbitration, MASTER functionality, and industrial-grade 20 ns performance in a single 48-pin package - simplifying design while ensuring deterministic real-time behavior.
Availability
7130SA20J is available at Aetrix Electronics and suitable for real-time communication bridges, dual-processor shared memory systems, video frame buffering, and DSP algorithm accelerator interfaces requiring stable component supply across extended product lifecycles.
Supply support for 7130SA20J 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 product line was designed specifically for deterministic, low-latency dual-processor and real-time embedded applications requiring hardware-arbitrated shared memory without external logic.
FAQ
What is the operating temperature range for the 7130SA20J?
The 7130SA20J is rated for industrial temperature operation from –40°C to +85°C. This specification is confirmed in the "Recommended Operating Temperature and Supply Voltage" table (Table 03) and applies across all AC and DC electrical characteristics for the SA speed grade. It is not qualified for commercial (0°C to +70°C) or military (–55°C to +125°C) ranges.
Does the 7130SA20J support battery backup data retention?
No, the 7130SA20J does not support battery backup data retention. That feature is exclusive to the LA variant (e.g., 7130LA20J), which specifies VDR = 2.0 V and ICCDR ≤ 4000 µA under data retention conditions. The SA suffix explicitly denotes standard active power consumption (550 mW typ.) without low-voltage retention capability.
How many pins does the 7130SA20J have, and what package types are offered?
The 7130SA20J is a 48-pin device. Officially supported packages include 48-pin ceramic flatpack (FP48), 48-pin leadless chip carrier (LC48), and 48-pin plastic dual in-line package (PDG48/SB48). Pin configurations are identical across all three, with GND and VCC distributed for noise reduction, as shown in Drawing 03F, 03L, and 02.
Is the 7130SA20J pin-compatible with the IDT7140 series?
No, the 7130SA20J is not pin-compatible with IDT7140 devices. While both share the same 48-pin footprint and basic signal naming (e.g., CEL, OEL, R/WL), the 7130SA20J has BUSYL and BUSYR as open-drain outputs, whereas IDT7140 devices have them as inputs. This functional difference alters pin behavior and requires distinct PCB layout and external pull-up design - confirming they are complementary, not interchangeable, components.
What is the maximum power dissipation of the 7130SA20J during active operation?
The 7130SA20J dissipates up to 550 mW typical active power (at VCC = 5.0 V, TA = +25°C), as stated in the Features section and verified in DC Electrical Characteristics Table 04 (ICC = 110 mA typ. × 5 V ≈ 550 mW). Peak dynamic current is 110 mA, and no derating curve is specified beyond the industrial temperature range, confirming this value holds across –40°C to +85°C.
7130SA20J 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:
- 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:
- 52-PLCC (19.13x19.13)
7130SA20J FAQ
1.How can I place an order for 7130SA20J through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130SA20J 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 7130SA20J reliable?
The price and inventory of 7130SA20J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130SA20J is usually 5 days.
3.What payment methods are accepted for 7130SA20J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130SA20J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130SA20J?
7130SA20J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130SA20J 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 7130SA20J?
For technical support, including 7130SA20J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130SA20J requirements.
6.How does Aetrix verify that 7130SA20J is sourced from the original manufacturer or authorized distributors?
All 7130SA20J 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 7130SA20J meets industry standards.
7.What is the process for return or replacement of 7130SA20J?
All 7130SA20J units undergo pre-shipment inspection (PSI). If there is an issue with 7130SA20J, 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 7130SA20J part is unused and in its original packaging.
Return procedure for 7130SA20J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130SA20J 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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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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