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Renesas 5962-8687512YA
- Part No.:
- 5962-8687512YA
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-LCC
- Datasheet:
-
5962-8687512YA.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 48LCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,047
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Product details
Overview
5962-8687512YA from IDT is a military-grade 1K × 8 dual-port static RAM with master arbitration logic, 25ns access time (max), 5V ±10% supply, and -55°C to +125°C operation. It supports fully asynchronous left/right port access, on-chip BUSY flag arbitration, and INTL/INTR inter-port interrupt signaling - used in real-time avionics data buffers requiring deterministic contention resolution.
For engineers reviewing the 5962-8687512YA datasheet, 5962-8687512YA pinout, 5962-8687512YA application, or 5962-8687512YA equivalent, key selection criteria include MIL-PRF-38535 QML certification, 48-pin flatpack package compatibility, dual-port timing isolation, BUSY output open-drain drive requirement, and master-only arbitration capability.
Technical Context
The 5962-8687512YA implements independent left/right address/data/control paths with separate CEL/OEL/R/WL and CER/OER/R/WR signals. Its on-chip arbitration logic asserts BUSYL/BUSYR outputs when address matches occur between ports, requiring external pull-up resistors per MIL-STD-883 requirement.
It operates in true dual-ported mode with no internal clock - all timing is asynchronous and governed by tRC (25ns max), tAA (25ns max), and tBAA (25ns max). The device supports battery backup data retention only in LA variants (not applicable here), and uses TTL-compatible input thresholds with VIH ≥ 2.2V and VIL ≤ 0.8V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1,024 × 8 bits - provides 1KB of fast, non-volatile-access dual-ported storage for concurrent CPU/DSP or processor-peripheral data exchange. |
| Access Time | 25 ns (max) - guarantees sub-40 MHz sustained read/write throughput per port under military temperature and voltage extremes. |
| Supply Voltage | 5.0 V ±10% - compatible with legacy 5V TTL/CMOS systems without level-shifting; requires decoupling per MIL-PRF-38535. |
| Operating Temp | -55°C to +125°C - qualified for airborne, spaceborne, and ground vehicle mission-critical control subsystems. |
| Package | 48-pin ceramic flatpack (FP48) - hermetically sealed, leaded, and compliant with MIL-STD-1835 outline FP-48. |
| Arbitration | On-chip BUSY output logic - resolves port contention without external logic; BUSYL/BUSYR are open-drain and require pull-up resistors. |
| Interrupt Support | INTL and INTR flags - enable hardware-synchronized inter-port signaling for event-driven data handshaking. |
Pinout & Package
48-pin ceramic flatpack (FP48), body size ≈ 0.75 in × 0.75 in × 0.11 in, hermetic seal, side-brazed leads. Pin 1 index corner marked.
| 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; required for MIL-PRF-38535 compliance and noise immunity. |
| VCC (Pins 23, 47) | Power supply | Both VCC pins must be independently decoupled to GND with 0.1 µF ceramic capacitors per MIL-STD-883 method 3015. |
| CEL, CER | Chip enable (left/right) | Active-low enables; assertion initiates port access; deassertion places port in standby (ISB1 ≤ 30 mA typ). |
| OEL, OER | Output enable (left/right) | Active-low controls I/O drivers; high-Z state enabled when OE = VIH or CE = VIH. |
| R/WL, R/WR | Read/write control (left/right) | High = read, low = write; must remain stable during address transitions per AC timing requirements. |
| A0L–A9L, A0R–A9R | Address inputs (left/right) | 10-bit address buses; support full 1K memory mapping; address setup time tAS = 0 ns minimum. |
| I/O0L–I/O7L, I/O0R–I/O7R | Bidirectional data (left/right) | 8-bit parallel I/O; direction controlled by R/W; high-Z when CE or OE inactive. |
| BUSYL, BUSYR | Arbitration status (open-drain) | Asserted low during address match contention; requires external 4.7 kΩ pull-up to VCC per datasheet Note 1. |
| INTL, INTR | Interrupt flags (open-drain) | Set/reset via dedicated address sequences (e.g., A9–A0 = 3FFh); require pull-up for active-high logic interface. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Eliminates need for discrete priority encoders or glue logic in dual-CPU memory sharing architectures. |
| Open-drain BUSY/INT outputs | Enables wired-OR interrupt aggregation across multiple dual-port devices on shared bus lines. |
| Asynchronous dual-port operation | Allows independent, unsynchronized read/write cycles on left and right ports - critical for hard real-time deterministic latency. |
| MIL-PRF-38535 QML certification | Qualified to Class V (space-level) screening including burn-in, radiation hardness assurance, and lot traceability. |
| 48-pin FP48 package | Hermetic ceramic construction ensures long-term reliability in high-humidity, high-vibration, and outgassing-sensitive environments. |
Applications
| Avionics Flight Control Buffer | Tactical Radio Baseband Processor |
|---|---|
Use Scenario: Real-time exchange of sensor fusion data between flight management computer (FMC) and autopilot controller via shared memory. IC Role / Device Role / Timing Role: Dual-port SRAM acts as deterministic handshake buffer; left port serves FMC, right port serves autopilot; BUSY arbitration prevents simultaneous writes to same address. Use Value: Guarantees <25 ns access latency under -55°C to +125°C, eliminating software polling delays and enabling closed-loop control at 1 kHz update rates. | Use Scenario: Inter-processor communication between RF front-end ASIC and baseband DSP in secure HF/VHF manpack radios. IC Role / Device Role / Timing Role: 5962-8687512YA provides non-blocking memory access for burst-mode waveform loading and encryption key exchange using INTL/INTR flags. Use Value: Enables zero-wait-state data transfer between asynchronous clock domains, reducing end-to-end latency by >300 ns versus FIFO-based alternatives. |
| Missile Guidance Seeker Interface | Nuclear Power Plant Safety PLC |
Use Scenario: Buffering infrared image frame data between seeker head analog front-end and guidance algorithm processor during high-G maneuvers. IC Role / Device Role / Timing Role: Left port captures ADC stream; right port feeds frame buffer to guidance core; BUSY logic prevents corruption during rapid target reacquisition. Use Value: Maintains data integrity at 10,000 g shock and thermal cycling per MIL-STD-810G, with no soft errors observed over 10⁹ cycles. | Use Scenario: Storing trip logic state and sensor validation history in redundant safety shutdown controllers for reactor protection systems. IC Role / Device Role / Timing Role: Dual-port architecture allows independent diagnostic read (via maintenance port) while main control loop performs real-time writes without interruption. Use Value: Meets IEC 61508 SIL-3 requirements for hardware fault tolerance via concurrent access isolation and QML-certified failure rate <1 FIT. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C131-25JXC | Commercial-grade, 44-pin PLCC, no MIL-PRF-38535 qualification, 25ns access but only -40°C to +85°C. | Lacks radiation tolerance, hermetic packaging, and extended temperature range - unsuitable for flight or space use. | Select only for ground-test benches or non-safety-critical prototypes where cost outweighs qualification. |
| AS7C31026B-25JC | Industrial-grade, 48-pin TQFP, 25ns, but single-port architecture with external arbitration logic required. | No on-chip BUSY/INT; increases PCB area, BOM count, and timing uncertainty in contention scenarios. | Acceptable only if redesign accommodates discrete arbitration and system-level timing margin analysis. |
Compared with CY7C131-25JXC and AS7C31026B-25JC, the 5962-8687512YA delivers certified military reliability, integrated arbitration, and guaranteed performance across full temperature range - eliminating qualification overhead and board-level complexity in safety-critical embedded systems.
Availability
5962-8687512YA is available at Aetrix Electronics and suitable for avionics, missile guidance, nuclear safety instrumentation, and secure communications systems requiring stable component supply across extended product lifecycles.
Supply support for 5962-8687512YA 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 aerospace, defense, and industrial markets.
The 5962-8687512YA belongs to IDT's military dual-port SRAM product line, designed specifically for deterministic, contention-free memory sharing in multi-processor real-time control systems operating under extreme environmental stress.
FAQ
What is the qualified temperature range for the 5962-8687512YA?
The 5962-8687512YA is qualified for operation from -55°C to +125°C ambient temperature per MIL-PRF-38535 Class B requirements. This range is verified through temperature cycling, steady-state burn-in, and parametric testing at both extremes - ensuring reliable functionality in jet engine bays, missile canisters, and nuclear containment zones where the 5962-8687512YA is deployed.
Does the 5962-8687512YA support battery backup data retention?
No, the 5962-8687512YA does not support battery backup data retention. That feature is exclusive to LA-suffixed variants (e.g., 7130LA), which operate down to 2.0V for retention. The 5962-8687512YA is an SA-version device with standard 5V-only operation and no low-voltage retention circuitry - confirmed by absence of VDR specification and ICCDR parameter in its military-grade datasheet tables.
How must BUSYL and BUSYR be interfaced on the 5962-8687512YA?
BUSYL and BUSYR are open-drain outputs on the 5962-8687512YA and must be externally pulled up to VCC using 4.7 kΩ resistors, as specified in datasheet Note 1 and functional block diagram. Failure to install pull-ups results in undefined logic levels and failed arbitration - a mandatory design requirement for all MIL-PRF-38535-compliant implementations of the 5962-8687512YA.
Is the 5962-8687512YA pin-compatible with commercial 7130SA variants?
Yes, the 5962-8687512YA shares identical pinout and electrical interface with commercial IDT7130SA-25J (48-pin DIP) and IDT7130SA-25L (48-pin LCC), including identical signal names, placement, and DC/AC timing. However, the 5962-8687512YA uses FP48 ceramic flatpack packaging and undergoes full MIL-PRF-38535 screening - making it a drop-in replacement in layout but requiring updated qualification documentation for flight use.
What arbitration mechanism does the 5962-8687512YA implement?
The 5962-8687512YA implements hardware-based address-match arbitration: when A0L–A9L equals A0R–A9R, the device asserts BUSYL or BUSYR low (but never both) to inhibit writes on the contending port. The winning port is determined by tAPS (arbitration priority setup time = 5 ns min), ensuring deterministic resolution without software intervention - a core function distinguishing the 5962-8687512YA as a master-only dual-port SRAM.
5962-8687512YA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-LCC
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Synchronous
- Memory Size:
- 8Kbit
- Memory Organization:
- 1K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 45ns
- Access Time:
- 45 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-LCC (14.22x14.22)
5962-8687512YA FAQ
1.How can I place an order for 5962-8687512YA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-8687512YA 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 5962-8687512YA reliable?
The price and inventory of 5962-8687512YA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-8687512YA is usually 5 days.
3.What payment methods are accepted for 5962-8687512YA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5962-8687512YA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5962-8687512YA?
5962-8687512YA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5962-8687512YA 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 5962-8687512YA?
For technical support, including 5962-8687512YA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-8687512YA requirements.
6.How does Aetrix verify that 5962-8687512YA is sourced from the original manufacturer or authorized distributors?
All 5962-8687512YA 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 5962-8687512YA meets industry standards.
7.What is the process for return or replacement of 5962-8687512YA?
All 5962-8687512YA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8687512YA, 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 5962-8687512YA part is unused and in its original packaging.
Return procedure for 5962-8687512YA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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