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Renesas 5962-8687508XA
- Part No.:
- 5962-8687508XA
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-DIP (0.600", 15.24mm)
- Datasheet:
-
5962-8687508XA.pdf
- Description:
- IC SRAM 8KBIT PARALLEL SB48
- Quantity:
- Payment:
- Shipping:
Inventory:2,437
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Product details
Overview
5962-8687508XA from IDT is a military-grade 1K × 8 dual-port static RAM with on-chip arbitration logic, 25ns/35ns access time (max), 5V ±10% supply, and -55°C to +125°C operation - used as MASTER in high-reliability avionics data buffering and real-time inter-processor communication systems.
For engineers reviewing the 5962-8687508XA datasheet, 5962-8687508XA pinout, 5962-8687508XA application, or 5962-8687508XA equivalent, this page delivers verified timing specs, port-to-port arbitration behavior, BUSY/INT flag implementation, and MIL-PRF-38535 QML-qualified packaging details for deterministic system integration.
Technical Context
The 5962-8687508XA implements fully asynchronous dual-port architecture with independent left/right address, control, and I/O buses. It integrates on-chip arbitration logic that resolves simultaneous access contention via BUSY flag assertion and priority set-up timing (tAPS = 5ns).
As a MASTER device, it features open-drain BUSYL/BUSYR outputs requiring external pull-ups, supports port-to-port interrupt signaling (INTL/INTR), and enables battery-backed data retention (2V, LA version) - all compliant with MIL-PRF-38535 Class V QML requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8-bit wide), enabling compact dual-access buffer storage without external width expansion. |
| Access Time | 25ns max (MIL grade), guaranteeing deterministic read/write response in hard real-time avionics timing budgets. |
| Supply Voltage | 5.0V ±10%, compatible with legacy military 5V logic families and eliminating need for voltage translation. |
| Operating Temp | -55°C to +125°C, qualified per MIL-PRF-38535 QML Class V for deployment in engine-mounted or space-constrained flight control units. |
| Arbitration Logic | On-chip port arbitration with tAPS = 5ns setup, ensuring predictable resolution of simultaneous left/right port access to same address. |
| Battery Retention | 2V data retention (LA variant), supporting nonvolatile memory hold during main power loss in mission-critical black-box recorders. |
| Package | 48-pin ceramic flatpack (FP48), hermetically sealed for moisture resistance and long-term reliability in harsh environmental conditions. |
Pinout & Package
48-pin ceramic flatpack (FP48), body size ≈ 0.75 in × 0.75 in × 0.11 in, hermetic seal, leadless construction, suitable for high-reliability military PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A9L | Left port address inputs | 10-bit address bus for left-side memory access; must be stable before CE/OE assertion to meet tAA timing. |
| A0R–A9R | Right port address inputs | 10-bit address bus for right-side access; independent timing allows concurrent reads/writes across ports. |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit tri-state I/O; driven only when CEL = L and R/WL = H (read) or CEL = L and R/WL = L (write). |
| I/O0R–I/O7R | Right port bidirectional data | 8-bit tri-state I/O; operates independently - no shared bus loading or timing coupling with left port. |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; when both high, device enters ISB1 standby mode (≤30mA at MIL temp). |
| OEL / OER | Output enable (left/right) | Active-low controls output drivers; when high, I/O pins enter high-impedance state regardless of R/W state. |
| R/WL / R/WR | Read/write control (left/right) | High = read, low = write; determines direction of data flow on associated I/O bus during active CE cycle. |
| BUSYL / BUSYR | Busy flag (open-drain, left/right) | Asserted low when opposite port accesses same address; requires external 4.7kΩ pull-up for TTL-compatible logic level. |
| INTL / INTR | Interrupt flag (open-drain, left/right) | Signals inter-port event (e.g., write to address 0x3FF sets INTR); open-drain output demands pull-up for proper edge detection. |
| VCC / GND | Power supply | All VCC pins must be decoupled locally (0.1µF + 10µF); all GND pins tied to common ground plane to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Eliminates need for external glue logic in MASTER/SLAVE configurations, reducing BOM count and layout complexity in dual-CPU systems. |
| Open-drain BUSY/INT outputs | Enables wired-OR interrupt aggregation across multiple dual-port RAMs, simplifying interrupt controller interface in distributed avionics architectures. |
| Dual independent asynchronous ports | Allows simultaneous CPU and DSP access to shared memory without clock domain synchronization or FIFO buffering overhead. |
| MIL-PRF-38535 QML Class V compliance | Guarantees screening, testing, and traceability per military standard - required for DoD procurement and flight-certified hardware. |
| 2V data retention (LA variant) | Preserves critical telemetry or fault logs during brownout or emergency power-down, meeting DO-178C data integrity requirements. |
Applications
| Avionics Data Buffering | Real-Time Inter-Processor Communication |
|---|---|
Use Scenario: Shared memory between flight control computer (FCC) and inertial measurement unit (IMU) in fly-by-wire systems. IC Role / Device Role / Timing Role: MASTER 5962-8687508XA provides deterministic, contention-free access to sensor fusion data with ≤25ns latency. Use Value: Enables sub-millisecond control loop updates without software arbitration overhead or bus contention delays. | Use Scenario: Synchronization of radar signal processor and mission computer in airborne early warning platforms. IC Role / Device Role / Timing Role: Dual-port SRAM acts as handshake-free data exchange buffer using INTL/INTR flags for event-driven transfers. Use Value: Eliminates polling cycles and reduces CPU utilization by >40% compared to UART or SPI-based interconnects. |
| Engine Control Unit Memory | Mission-Critical Black Box Recorder |
Use Scenario: Storing real-time combustion chamber pressure samples and actuator commands in turbine engine controllers. IC Role / Device Role / Timing Role: 5962-8687508XA serves as fault-tolerant scratchpad memory with BUSY arbitration preventing corrupted writes during transient EMI events. Use Value: Ensures data coherency under radiated susceptibility up to 200 V/m (per MIL-STD-461G RS103). | Use Scenario: Nonvolatile storage of flight parameters during power loss in crash-survivable recorder modules. IC Role / Device Role / Timing Role: LA variant of 5962-8687508XA retains last 1024 samples at 2V backup supply after main power failure. Use Value: Meets ED-112A crashworthiness requirement for ≥10 minutes of post-impact data retention without battery replacement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C131-25VC | Commercial-grade 1K×8 dual-port, 25ns access, 5V, but lacks MIL-PRF-38535 qualification and on-chip arbitration logic. | Not suitable for flight-critical systems; limited to ground-test or lab environments due to unqualified temperature range (-40°C to +85°C). | Select only for cost-sensitive prototyping where QML compliance is not mandated. |
| IS61LV25616AL-10TL | 3.3V LVCMOS, 256K×16, no built-in arbitration; requires external logic for BUSY/INT generation and contention management. | Higher density but incompatible voltage and missing deterministic arbitration - unsuitable for drop-in replacement in legacy 5V MIL-SPEC designs. | Consider only for new 3.3V designs with FPGA-based arbitration and full redesign budget. |
Compared with CY7C131-25VC and IS61LV25616AL-10TL, the 5962-8687508XA uniquely delivers QML-qualified 25ns dual-port operation with integrated arbitration and 2V retention - essential for certified avionics where component pedigree, timing determinism, and environmental resilience are non-negotiable.
Availability
5962-8687508XA is available at Aetrix Electronics and suitable for avionics data buffering, real-time inter-processor communication, and engine control unit memory requiring stable component supply across extended production lifecycles.
Supply support for 5962-8687508XA 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 5962-8687508XA belongs to IDT's military dual-port SRAM product line, engineered specifically for deterministic, contention-free shared memory in safety-critical real-time systems operating under extreme environmental stress.
FAQ
What is the maximum guaranteed access time for the 5962-8687508XA across its full military temperature range?
The 5962-8687508XA guarantees a maximum access time of 25ns over the full -55°C to +125°C operating range. This value is specified in the AC Electrical Characteristics table for the 7130X25 variant under MIL grade conditions and applies to both read and write cycles when measured per JEDEC-standard test loads and reference levels.
Does the 5962-8687508XA support true simultaneous read/write operations on both ports?
Yes, the 5962-8687508XA supports fully asynchronous, simultaneous access - but only when accessing different memory addresses. If both ports attempt to access the same location, on-chip arbitration asserts BUSYL or BUSYR to inhibit the later-arriving write, ensuring data coherency without external logic. This behavior is defined in Truth Table III and timing diagrams DRW12–DRW15.
How is the BUSY signal implemented on the 5962-8687508XA, and what external components are required?
The 5962-8687508XA implements BUSYL and BUSYR as open-drain outputs requiring external pull-up resistors (typically 4.7kΩ to VCC). When asserted, they drive low to indicate port contention; when inactive, they float high. This design enables wired-OR connection of multiple BUSY lines - a key feature for scalable multi-processor memory architectures.
Is the 5962-8687508XA pin-compatible with commercial variants like the IDT7130SA-25JGI?
No - while functionally identical, the 5962-8687508XA uses a 48-pin ceramic flatpack (FP48) package per MIL-PRF-38535, whereas IDT7130SA-25JGI uses a 48-pin plastic DIP (PDG48). Pin numbering and mechanical footprint differ; direct PCB substitution is not possible without layout revision and requalification.
What is the data retention capability of the 5962-8687508XA, and under what conditions is it guaranteed?
The 5962-8687508XA (LA variant) guarantees data retention at VCC = 2.0V across -55°C to +125°C, with ICCDR ≤ 4000µA (MIL grade). This mode activates automatically when VCC drops below 4.5V while CE remains asserted; retention time exceeds 10 minutes per ED-112A requirements when paired with a backup supercapacitor or lithium battery.
5962-8687508XA 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, 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:
- Through Hole
- Supplier Device Package:
- 48-SIDE BRAZED
5962-8687508XA FAQ
1.How can I place an order for 5962-8687508XA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-8687508XA 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 5962-8687508XA reliable?
The price and inventory of 5962-8687508XA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-8687508XA is usually 5 days.
3.What payment methods are accepted for 5962-8687508XA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5962-8687508XA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5962-8687508XA?
5962-8687508XA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5962-8687508XA 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 5962-8687508XA?
For technical support, including 5962-8687508XA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-8687508XA requirements.
6.How does Aetrix verify that 5962-8687508XA is sourced from the original manufacturer or authorized distributors?
All 5962-8687508XA 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 5962-8687508XA meets industry standards.
7.What is the process for return or replacement of 5962-8687508XA?
All 5962-8687508XA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8687508XA, 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 5962-8687508XA part is unused and in its original packaging.
Return procedure for 5962-8687508XA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5962-8687508XA Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
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AT24C02C-SSHM-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
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AT24C04C-SSHM-T
Microchip Technology
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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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