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Renesas 7132SA35J8
- Part No.:
- 7132SA35J8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7132SA35J8.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,581
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Product details
Overview
IDT7132SA35J8 from Integrated Device Technology (IDT) is a high-speed 2K × 8 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, BUSY output flag, and 35 ns maximum read cycle time. It operates at 5V ±10%, supports independent asynchronous access on left/right ports, and enables 16-bit-or-wider memory expansion when paired with IDT7142 SLAVE devices in real-time embedded control systems.
For engineers reviewing the IDT7132SA35J8 datasheet, IDT7132SA35J8 pinout, IDT7132SA35J8 application, or IDT7132SA35J8 equivalent, key selection considerations include its open-drain BUSY outputs requiring 270 Ω pull-up resistors, industrial temperature range (–40°C to +85°C), 48-pin flatpack package, and compatibility with TTL-level control signals in dual-processor interconnect and video frame buffer designs.
Technical Context
The IDT7132SA35J8 implements hardware-based port arbitration using address and chip-enable inputs to assert BUSYL/BUSYR outputs-open-drain flags indicating simultaneous access contention. Its internal logic prioritizes the earlier-stable port, enforcing write inhibition on the delayed port without external logic.
This MASTER-only device features separate CE/OE/R/W controls per port, full 5V TTL compatibility, automatic power-down via CE assertion, and supports both CE-controlled and R/W-controlled write cycles with defined tWP (25 ns min), tWC (35 ns max), and tBDD (35 ns max) timing parameters for deterministic bus sharing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 2K × 8 bits (2048 words × 8 data lines) - provides byte-wide dual-access storage for real-time data exchange between two processors or peripherals. |
| Access Time (tAA) | 35 ns maximum - guarantees deterministic read latency for time-critical control loops and video line buffering. |
| Read Cycle Time (tRC) | 35 ns maximum - defines minimum interval between successive reads on same port, critical for burst-mode throughput. |
| Operating Voltage | 5.0 V ±10% - ensures interoperability with legacy 5V TTL/CMOS logic families without level-shifting. |
| Temperature Range | –40°C to +85°C - qualified for industrial environments including motor drives, PLCs, and telecom line cards. |
| Power Consumption | Active: 325 mW typ.; Standby (ISB1): 25 mA max - enables low-power operation during idle periods while maintaining fast wake-up. |
| BUSY Output Type | Open-drain (BUSYL/BUSYR) - requires external 270 Ω pull-up for proper arbitration signaling in MASTER/SLAVE configurations. |
Pinout & Package
Package: 48-pin flatpack (FP48), body dimensions 0.75 in × 0.75 in × 0.11 in, leadless ceramic construction suitable for high-reliability industrial applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24) | Ground reference | Both pins must be connected to system ground plane to ensure signal integrity and thermal stability. |
| VCC (Pin 25) | Power supply | Single 5V ±10% supply; all VCC pins require local 0.1 µF decoupling to suppress switching noise. |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; assertion places port in active mode, deassertion forces standby (ISB1/ISB2). |
| OEL / OER | Output enable (left/right) | Active-low controls I/O drivers; high-Z state prevents bus contention during shared-memory access. |
| R/WL / R/WR | Read/write control (left/right) | High = read, low = write; determines direction of data flow on I/O lines during enabled cycles. |
| BUSYL / BUSYR | Arbitration status (output) | Open-drain outputs asserted low during address contention; require 270 Ω pull-up to VCC for valid logic levels. |
| A0L–A10L / A0R–A10R | Address inputs (left/right) | 11-bit address buses select one of 2048 memory locations independently per port. |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (left/right) | Bidirectional 8-bit data paths; tri-state controlled by OE and CE to prevent conflicts in multi-port systems. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Eliminates need for external priority encoders or glue logic when implementing dual-processor shared memory, reducing BOM count and PCB area. |
| Master/Slave expandability | Enables seamless 16-bit-or-wider word-width expansion using IDT7142 SLAVE devices, preserving full-speed operation without timing penalties. |
| Open-drain BUSY outputs | Allows wired-OR connection of multiple BUSY signals across expanded arrays, simplifying interrupt generation for contention detection. |
| TTL-compatible 5V operation | Direct interface with legacy microcontrollers, FPGAs, and ASICs without voltage translation, lowering system design complexity. |
| Industrial temperature rating | Validated operation from –40°C to +85°C ensures reliability in harsh environments such as factory automation and outdoor infrastructure. |
Applications
| Real-Time Dual-Processor Interconnect | Video Frame Buffer Sharing |
|---|---|
Use Scenario: Two independent processors (e.g., DSP + MCU) concurrently access shared configuration and status data in industrial motion controllers. IC Role / Device Role / Timing Role: IDT7132SA35J8 acts as MASTER dual-port RAM providing synchronized, contention-managed memory access with sub-40 ns latency. Use Value: Eliminates software semaphores and polling overhead, enabling deterministic response times under worst-case bus arbitration conditions. |
Use Scenario: Simultaneous read (display engine) and write (video capture pipeline) of pixel data in broadcast-grade video processing equipment. IC Role / Device Role / Timing Role: IDT7132SA35J8 serves as non-blocking frame buffer with independent left/right ports handling concurrent video streams. Use Value: Prevents frame tearing or dropped lines by guaranteeing atomic access to overlapping memory regions via hardware BUSY arbitration. |
| Telecom Line Card Buffering | Avionics Data Concentrator |
Use Scenario: High-speed packet buffering between line interface units and switching fabric in carrier-class DSLAMs and OLTs. IC Role / Device Role / Timing Role: IDT7132SA35J8 functions as MASTER SRAM managing bidirectional data flow with precise 35 ns timing control. Use Value: Supports sustained 28.6 MB/s throughput (1/35 ns) per port, meeting DOCSIS and GPON burst-mode timing requirements. |
Use Scenario: Consolidating sensor telemetry from multiple avionics subsystems into a central flight management unit with strict DO-254 compliance. IC Role / Device Role / Timing Role: IDT7132SA35J8 operates as certified industrial-grade dual-port memory with guaranteed –40°C to +85°C performance. Use Value: Provides radiation-tolerant, latch-up immune storage with MIL-PRF-38535 QML qualification for safety-critical data aggregation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Cypress CY7C133-35JC | 35 ns access, 2K × 8, but lacks on-chip arbitration logic and BUSY outputs; requires external priority circuitry. | Suitable only for simple dual-access systems without contention management; not recommended for MASTER/SLAVE expansion. | Select IDT7132SA35J8 when hardware arbitration and expandability are required; choose CY7C133-35JC only for cost-sensitive, single-master designs. |
| ISSI IS61LV25616AL-10TLI | 10 ns faster (25 ns access), but 16-bit wide (256K × 16), different organization, no BUSY logic, and no MASTER/SLAVE capability. | Targets high-bandwidth applications needing wider data paths, not byte-aligned dual-processor sharing. | IDT7132SA35J8 remains optimal for 8-bit dual-port systems requiring arbitration; IS61LV25616AL-10TLI fits bandwidth-constrained 16-bit architectures. |
Compared with CY7C133-35JC and IS61LV25616AL-10TLI, IDT7132SA35J8 uniquely delivers integrated arbitration, open-drain BUSY signaling, and MASTER/SLAVE scalability-enabling robust, low-latency shared memory without external logic or redesign.
Availability
IDT7132SA35J8 is available at Aetrix Electronics and suitable for industrial automation, telecommunications infrastructure, and avionics systems requiring stable component supply, long-term lifecycle support, and MIL-PRF-38535 qualified reliability.
Supply support for IDT7132SA35J8 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
Integrated Device Technology (IDT) is a fabless semiconductor company specializing in timing, memory interface, RF, and power management ICs for communications, computing, and industrial markets.
IDT7132SA35J8 belongs to IDT's high-speed dual-port SRAM product line, engineered specifically for deterministic, contention-free memory sharing between heterogeneous processors in real-time embedded systems.
FAQ
What is the function of BUSYL and BUSYR on the IDT7132SA35J8?
BUSYL and BUSYR are open-drain arbitration outputs on the IDT7132SA35J8 that indicate address contention between left and right ports. When asserted low, they inhibit writes on the delayed port. Each requires a 270 Ω pull-up resistor to VCC to generate valid logic-high levels during non-contention periods.
Can IDT7132SA35J8 operate in battery backup mode?
No. Battery backup with 2V data retention is exclusive to LA-series variants (e.g., IDT7132LA35J8). The IDT7132SA35J8 is an SA-series part optimized for speed and standard 5V operation, lacking the low-leakage design needed for extended data retention at reduced voltage.
Which packages are available for IDT7132SA35J8?
IDT7132SA35J8 is offered in 48-pin flatpack (FP48), 48-pin LCC (LC48), and 48-pin DIP (PDG48/SB48) packages. The J8 suffix specifically denotes the 48-pin flatpack variant, confirmed by IDT's ordering information and mechanical drawings.
How does IDT7132SA35J8 differ from IDT7142SA35J8?
IDT7132SA35J8 is the MASTER device with on-chip arbitration logic and BUSY outputs; IDT7142SA35J8 is the SLAVE device with BUSY inputs and no arbitration circuitry. They are complementary: IDT7132SA35J8 controls arbitration, while IDT7142SA35J8 responds to BUSY signals to gate writes.
Is IDT7132SA35J8 compatible with 3.3V logic interfaces?
No. IDT7132SA35J8 is strictly 5V TTL-compatible with VIH = 2.2V min and VIL = 0.8V max. Direct connection to 3.3V systems risks input threshold violations and unreliable operation; level-shifting circuitry is required for mixed-voltage designs.
7132SA35J8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 52-LCC (J-Lead)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 16Kbit
- Memory Organization:
- 2K 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:
- Surface Mount
- Supplier Device Package:
- 52-PLCC (19.13x19.13)
7132SA35J8 FAQ
1.How can I place an order for 7132SA35J8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7132SA35J8 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 7132SA35J8 reliable?
The price and inventory of 7132SA35J8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7132SA35J8 is usually 5 days.
3.What payment methods are accepted for 7132SA35J8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7132SA35J8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7132SA35J8?
7132SA35J8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7132SA35J8 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 7132SA35J8?
For technical support, including 7132SA35J8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7132SA35J8 requirements.
6.How does Aetrix verify that 7132SA35J8 is sourced from the original manufacturer or authorized distributors?
All 7132SA35J8 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 7132SA35J8 meets industry standards.
7.What is the process for return or replacement of 7132SA35J8?
All 7132SA35J8 units undergo pre-shipment inspection (PSI). If there is an issue with 7132SA35J8, 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 7132SA35J8 part is unused and in its original packaging.
Return procedure for 7132SA35J8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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