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Renesas 7130SA35P
- Part No.:
- 7130SA35P
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-DIP (0.600", 15.24mm)
- Datasheet:
-
7130SA35P.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 48DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,851
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Product details
Overview
7130SA35P 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, 35 ns maximum access time, TTL-compatible 5V ±10% supply, and industrial temperature range (–40°C to +85°C). It enables simultaneous independent read/write access from left and right ports in real-time communication systems such as digital signal processors interfacing with microcontrollers.
For engineers reviewing the 7130SA35P datasheet, 7130SA35P pinout, 7130SA35P application, or 7130SA35P equivalent, key selection criteria include BUSY flag timing (tBAA ≤ 35 ns), port-to-port arbitration priority setup (tAPS = 5 ns), dual-port standby current (ISB1 = 25 mA typ.), and compatibility with IDT7140 SLAVE devices for 16-bit memory expansion.
Technical Context
The 7130SA35P implements fully asynchronous dual-port operation with separate address, data, and control lines per port. Its on-chip arbitration logic resolves contention when both ports access the same memory location, asserting open-drain BUSY outputs (BUSYL/BUSYR) requiring external pull-up resistors.
It supports port-to-port interrupt signaling via INTL/INTR pins and includes automatic power-down control via CE inputs. The device operates in MASTER mode only-BUSY pins are outputs (not inputs), distinguishing it functionally from the SLAVE IDT7140 series.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8-bit data width per port) |
| Access Time | 35 ns max - defines minimum read cycle time (tRC) for timing-critical real-time buffering |
| Supply Voltage | 4.5 V to 5.5 V - single TTL-compatible rail; no level-shifting required in 5V systems |
| Operating Temp | –40°C to +85°C - qualified for industrial environments including motor control and telecom infrastructure |
| Standby Current | 25 mA typ. (ISB1) - low-power idle state with both CE inputs high at TTL levels |
| Arbitration Setup | tAPS = 5 ns - minimum time before address match to guarantee deterministic BUSY assertion |
| BUSY Output Type | Open-drain - requires external pull-up resistor (e.g., 4.7 kΩ to VCC) for proper logic-level translation |
Pinout & Package
7130SA35P is supplied in a 48-pin ceramic flatpack (FP48) package measuring approximately 0.75 in × 0.75 in × 0.11 in. Pin assignments are identical across FP48, LC48, and PDG48 variants per IDT documentation.
| 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 0.1 µF ceramic decoupling to minimize switching noise |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; controls dynamic/standby current states (ISB1–ISB4) |
| OEL / OER | Output enable (left/right) | Active-low enables I/O drivers; high-Z state reduces bus contention during shared-memory access |
| R/WL / R/WR | Read/write direction (left/right) | High = read, low = write; determines data flow direction on bidirectional I/O lines |
| BUSYL / BUSYR | Arbitration status (left/right) | Open-drain outputs indicating port contention; require external pull-up for HIGH logic level |
| INTL / INTR | Interrupt flag (left/right) | Active-low flags set/reset via dedicated address sequences (e.g., A9–A0 = 3FFh/3FEh) |
| A0L–A9L / A0R–A9R | Address inputs (left/right) | 10-bit address buses enabling full 1K-word addressing per port; no internal multiplexing |
| 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 same-address access without external logic; guarantees deterministic BUSY assertion within 35 ns |
| Dual independent ports | Enables concurrent CPU and DSP access to shared memory with zero-cycle interlock overhead |
| Port-to-port interrupt signaling | Hardware-triggered INTL/INTR flags eliminate polling latency in real-time inter-processor communication |
| TTL-compatible interface | Direct connection to 5V microcontrollers and FPGAs without level shifters or bus buffers |
| Industrial temperature rating | Validated operation from –40°C to +85°C supports deployment in harsh environments like factory automation PLCs |
Applications
| Real-Time Digital Signal Processing | Industrial Motion Control |
|---|---|
Use Scenario: A DSP reads sensor data while a microcontroller writes updated filter coefficients into shared memory. IC Role / Device Role / Timing Role: MASTER dual-port SRAM acts as low-latency buffer between asymmetric processing units with independent clock domains. Use Value: 35 ns access time ensures sub-microsecond data exchange, eliminating pipeline stalls in closed-loop servo algorithms. | Use Scenario: PLC main CPU and motion coprocessor coordinate axis positioning commands and encoder feedback via shared memory. IC Role / Device Role / Timing Role: Arbitration-enabled memory prevents write collisions during simultaneous command updates and status reporting. Use Value: Deterministic tAPS = 5 ns arbitration setup guarantees predictable response to position error interrupts. |
| Telecom Line Card Buffering | Avionics Data Concentrators |
Use Scenario: FPGA-based packet parser writes incoming frame headers to memory while ARM processor reads and forwards them. IC Role / Device Role / Timing Role: Dual-port SRAM serves as zero-wait-state FIFO between high-speed serial interface and application processor. Use Value: Open-drain BUSY outputs synchronize access without adding glue logic, reducing BOM count and board area. | Use Scenario: Multiple LRUs (Line Replaceable Units) write sensor telemetry to a central concentrator using time-triggered access. IC Role / Device Role / Timing Role: MASTER device manages port arbitration and generates interrupt flags upon data readiness. Use Value: Industrial temp rating (–40°C to +85°C) and MIL-PRF-38535 compliance ensure reliability in unpressurized avionics bays. |
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-35AXC | 3.3V core, 35 ns access, 1K × 16 organization; no built-in arbitration logic | Requires external logic for BUSY generation; suited for 3.3V systems with wider data bus needs | Select when migrating to lower-voltage designs or needing 16-bit word width without MASTER/SLAVE pairing |
| IDT7140SA35P | SLAVE-only dual-port SRAM; BUSY pins are inputs (not outputs); no arbitration logic | Must be paired with IDT7130 as MASTER; used only for memory expansion beyond 8-bit width | Choose only as companion device to 7130SA35P in 16-bit+ systems; not standalone functional replacement |
Compared with CY7C024AV-35AXC and IDT7140SA35P, the 7130SA35P uniquely integrates arbitration logic and open-drain BUSY outputs in a 5V, 8-bit MASTER configuration-enabling self-contained dual-processor synchronization without external components or voltage translation.
Availability
7130SA35P is available at Aetrix Electronics and suitable for industrial motion control, real-time DSP buffering, and avionics data concentrators requiring stable component supply across extended product lifecycles.
Supply support for 7130SA35P 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 timing, memory interface, RF, and high-performance silicon solutions for communications, computing, and industrial markets.
The IDT7130 family was designed specifically for deterministic, low-latency inter-processor communication in real-time embedded systems-emphasizing on-chip arbitration, interrupt signaling, and robust 5V operation across industrial temperatures.
FAQ
What is the maximum operating temperature range for the 7130SA35P?
The 7130SA35P is rated for industrial temperature operation from –40°C to +85°C. This specification is validated per IDT's characterization and testing protocols and applies across all electrical parameters including access time (35 ns max), standby current (25 mA typ.), and BUSY arbitration timing (tAPS = 5 ns). The device meets this range in the FP48 ceramic flatpack package.
Does the 7130SA35P support battery backup data retention?
No, the 7130SA35P does not support battery backup data retention. That feature is exclusive to the LA suffix variants (e.g., 7130LA35P), which specify VDR = 2.0 V minimum and ICCDR ≤ 4000 µA under data retention conditions. The "SA" in 7130SA35P denotes standard active power profile without low-voltage retention capability.
How many GND and VCC pins does the 7130SA35P have, and why?
The 7130SA35P has four GND pins (1, 24, 25, 48) and two VCC pins (23, 26) in its 48-pin FP48 package. This multi-pin power/ground distribution minimizes impedance in high-speed switching paths, reduces simultaneous switching noise (SSN), and ensures stable voltage delivery across the die-critical for maintaining 35 ns timing margins and reliable arbitration behavior.
Can the 7130SA35P be used as a SLAVE device in a MASTER/SLAVE configuration?
No, the 7130SA35P is exclusively a MASTER device. Its BUSYL and BUSYR pins are open-drain outputs (not inputs), and it contains on-chip arbitration logic-features absent in SLAVE devices like the IDT7140 series. Attempting to use 7130SA35P as a SLAVE would result in incorrect BUSY signaling and potential data corruption due to missing input-handling circuitry.
What external components are required for proper 7130SA35P BUSY pin operation?
Each BUSY pin (BUSYL and BUSYR) requires an external pull-up resistor to VCC, typically 4.7 kΩ, because they are open-drain outputs. Without pull-up resistors, BUSY signals cannot drive HIGH, preventing correct arbitration flagging and causing undefined port inhibition behavior. No other passive components (e.g., capacitors or series resistors) are required for basic BUSY functionality.
7130SA35P 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:
- 35ns
- Access Time:
- 35 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 48-PDIP
7130SA35P FAQ
1.How can I place an order for 7130SA35P through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130SA35P 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 7130SA35P reliable?
The price and inventory of 7130SA35P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130SA35P is usually 5 days.
3.What payment methods are accepted for 7130SA35P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130SA35P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130SA35P?
7130SA35P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130SA35P 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 7130SA35P?
For technical support, including 7130SA35P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130SA35P requirements.
6.How does Aetrix verify that 7130SA35P is sourced from the original manufacturer or authorized distributors?
All 7130SA35P 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 7130SA35P meets industry standards.
7.What is the process for return or replacement of 7130SA35P?
All 7130SA35P units undergo pre-shipment inspection (PSI). If there is an issue with 7130SA35P, 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 7130SA35P part is unused and in its original packaging.
Return procedure for 7130SA35P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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