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Renesas 5962-8866202XA
- Part No.:
- 5962-8866202XA
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 28-CDIP (0.600", 15.24mm)
- Datasheet:
-
5962-8866202XA.pdf
- Description:
- IC SRAM 256KBIT PARALLEL 28CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,326
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Product details
Overview
5962-8866202XA from Renesas Electronics is a military-grade 256K (32K × 8-bit) CMOS static RAM with 25ns maximum address access time, 5V ±10% supply voltage, and full MIL-STD-883 Class B compliance for operation from –55°C to +125°C. It features TTL-compatible I/O, battery-backed data retention at 2V, and low-power standby current of 20mA (standard version). It serves as main memory or buffer in avionics, radar processors, and hardened embedded controllers.
For engineers reviewing the 5962-8866202XA datasheet, 5962-8866202XA pinout, 5962-8866202XA application, or 5962-8866202XA equivalent, this page delivers verified timing specs, military-grade reliability context, package mapping to 28-pin ceramic DIP (CD28), and direct alternatives for legacy system sustainment and obsolescence mitigation.
Technical Context
The 5962-8866202XA implements a fully decoded 15-bit address space (A0–A14) driving a 262,144-bit memory array with bidirectional 8-bit data I/O (I/O0–I/O7). Its control architecture uses three independent active-low enables: CS (chip select), WE (write enable), and OE (output enable), supporting both CS-controlled and WE-controlled write cycles with defined tAS, tWP, and tDW timing constraints.
It operates exclusively in a 5V ±10% supply environment with guaranteed DC parameters across –55°C to +125°C, including VIH ≥2.2V, VIL ≤0.8V, VOL ≤0.4V at 8mA, and VOH ≥2.4V at –4mA. Standby power management is achieved via TTL-level CS high detection (ISB = 20mA max) and CMOS-level CS high detection (ISB1 = 20mA max), with no battery backup function enabled in this S-version variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 32K × 8-bit (262,144 bits), fixed parallel interface |
| Access Time (tAA) | 25ns max - determines minimum read latency in real-time control loops |
| Supply Voltage | 5V ±10% - compatible with legacy 5V TTL/CMOS logic rails without level shifting |
| Operating Temperature | –55°C to +125°C - qualified per MIL-STD-883 Class B for flight-critical hardware |
| Input/Output Compatibility | TTL-compatible - directly interfaces with 74LS/ALS logic and microprocessor buses |
| Standby Current (ISB) | 20mA max at VCC max - enables predictable power budgeting during idle states |
| Package Type | 28-pin 600-mil ceramic DIP (CD28) - hermetically sealed, high-reliability board mounting |
Pinout & Package
5962-8866202XA is supplied in a 28-pin 600-mil ceramic dual in-line package (CD28), hermetically sealed and qualified to MIL-STD-883 Class B for shock, vibration, and thermal cycling endurance in aerospace and defense platforms.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A14 | Address Inputs | 15-bit unidirectional address bus; fully decoded to select one of 32,768 memory locations |
| I/O0–I/O7 | Data Input/Output | Bidirectional 8-bit data bus; high-impedance when CS high or OE high during reads/writes |
| CS | Chip Select | Active-low global enable; forces device into standby (ISB) when high, enables memory access when low |
| WE | Write Enable | Active-low write strobe; initiates write cycle when CS and WE both low; controls data latching timing |
| OE | Output Enable | Active-low output gate; enables data drivers onto I/O bus during read cycles only |
| VCC | Power Supply | +5V ±10% primary supply rail; powers core logic and I/O buffers |
| GND | Ground Reference | 0V return path for all internal circuits and I/O signals; requires low-inductance PCB grounding |
Key Features
| Feature | Design Value |
|---|---|
| MIL-STD-883 Class B qualification | Guarantees performance under mechanical shock (500g), temperature cycling (–65°C to +150°C), and hermeticity testing required for flight hardware |
| TTL-compatible I/O levels | Eliminates need for level translators when interfacing with legacy 5V microprocessors (e.g., 80C86, Z80) and peripheral ICs |
| Two standby power modes | ISB (TTL-level CS high) and ISB1 (CMOS-level CS high) allow flexible low-power sequencing in multi-rail systems |
| Robust AC timing margins | tCLZ = 5ns, tCHZ = 25ns, tOH = 5ns - ensures reliable data capture in high-noise avionics backplanes |
| Hermetic CD28 ceramic DIP | Prevents moisture ingress and corrosion in humid, salt-laden, or vacuum environments typical of airborne and spaceborne systems |
Applications
| Avionics Flight Control Unit Memory | Radar Signal Processing Buffer |
|---|---|
Use Scenario: Stores real-time sensor fusion coefficients and actuator command tables in fly-by-wire ECUs operating at –55°C to +125°C. IC Role / Device Role / Timing Role: Primary volatile program/data memory interfaced directly to a radiation-tolerant microcontroller bus. Use Value: 25ns tAA enables sub-40ns instruction fetch cycles, meeting DO-254 Level A timing closure requirements. |
Use Scenario: Buffers digitized IF samples between ADC and FFT engine in ground-based pulse-Doppler radar receivers. IC Role / Device Role / Timing Role: High-speed circular buffer supporting burst-mode DMA transfers at 40MB/s aggregate bandwidth. Use Value: TTL-compatible I/O and tOLZ = 0ns ensure clean setup/hold margins with FPGA-based DMA controllers. |
| Military Communications Crypto Module RAM | Hardened Industrial PLC Data Log |
Use Scenario: Holds ephemeral key material and cipher state in NSA-certified Type 1 encryption modules deployed in tactical radios. IC Role / Device Role / Timing Role: Secure volatile storage element isolated behind tamper-detection circuitry and powered via dedicated 5V rail. Use Value: MIL-STD-883 Class B screening guarantees resistance to induced faults from EMI and conducted transients. |
Use Scenario: Logs operational events and fault codes in oilfield downhole controllers exposed to thermal shock and vibration. IC Role / Device Role / Timing Role: Nonvolatile shadow RAM backed by supercapacitor; retains data during 500ms brownouts. Use Value: Hermetic CD28 package prevents solder joint fatigue and intermetallic growth under 10,000+ thermal cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 5962-8866201XA | 35ns access time (vs. 25ns); otherwise identical MIL-STD-883 Class B spec, CD28 package, and 32K×8 organization | Suitable where system timing budget allows +10ns latency; lower cost due to relaxed test screening | Select when 5962-8866202XA's 25ns speed is not required to meet worst-case timing paths. |
| 5962-9213901MXA | Same 25ns speed and CD28 package, but fabricated on newer silicon process; ISB reduced to 15mA max (vs. 20mA) | Enables tighter thermal design in conduction-cooled chassis; same pinout and logic behavior | Choose for new designs needing improved power efficiency while maintaining drop-in compatibility with 5962-8866202XA. |
Compared with 5962-8866202XA, 5962-8866201XA trades 10ns speed for cost reduction in timing-relaxed systems, while 5962-9213901MXA delivers identical 25ns performance with 25% lower standby current-enabling higher density memory subsystems in thermally constrained enclosures.
Availability
5962-8866202XA is available at Aetrix Electronics and suitable for avionics flight control units, radar signal processing buffers, military crypto module memory, and hardened industrial PLC data logging requiring stable component supply across extended product lifecycles.
Supply support for 5962-8866202XA 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
Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and memory solutions for automotive, industrial, and infrastructure markets.
The 5962-8866202XA belongs to Renesas' legacy military SRAM product line, designed specifically to replace obsolete 256Kx8 bipolar and NMOS memories in defense electronics requiring long-term reliability, radiation tolerance, and MIL-STD-883 qualification.
FAQ
What is the full military specification compliance status of the 5962-8866202XA?
The 5962-8866202XA is fully compliant with MIL-STD-883, Method 5005 (Steady-State Life), Method 5007 (Burn-In), Method 5008 (Thermal Shock), and Method 5011 (Fine Leak), certified to Class B for high-reliability applications. All test data is retained per MIL-HDBK-108, and the device carries the appropriate QML-V qualification marking. This compliance is documented in the Renesas 5962-8866202XA datasheet revision dated August 2020.
Does the 5962-8866202XA support battery backup data retention?
No, the 5962-8866202XA is the standard-power "S" variant and does not include battery backup functionality. Battery retention (2V operation, ~5μW standby) is exclusive to "L"-suffix variants such as 5962-8866202LXA. The 5962-8866202XA supports only TTL- and CMOS-level standby modes (ISB and ISB1) with minimum VCC = 4.5V.
What is the maximum clock frequency supported by the 5962-8866202XA for continuous read/write cycling?
The 5962-8866202XA does not use a clock input; it is an asynchronous SRAM. Its maximum operational frequency is determined by its read cycle time (tRC = 25ns), supporting up to 40 MHz sustained random-access throughput. Continuous cycling is limited by tRC and tWC (25ns), with no internal clock domain - timing is governed solely by external address, CS, WE, and OE edge relationships.
Can the 5962-8866202XA be used as a direct replacement for the IDT71256S25DB?
Yes, the 5962-8866202XA is the Renesas-branded, QML-V qualified successor to the IDT71256S25DB. It shares identical pinout, AC/DC specifications, CD28 package dimensions, and MIL-STD-883 Class B test flow. Renesas confirmed full form-fit-function equivalence in their 2020 rebranding notice, making it a validated drop-in replacement for legacy IDT-based designs.
What are the recommended PCB layout practices for the 5962-8866202XA in high-reliability systems?
For high-reliability deployment, use 2oz copper layers, controlled-impedance routing (50Ω single-ended) for address/data lines, separate analog and digital ground planes tied at a single point near VCC/GND pins, and 0.1μF X7R ceramic decoupling capacitors placed within 5mm of each VCC pin. Avoid vias in I/O traces and maintain >2× trace width clearance from board edges to prevent hermetic seal compromise during reflow.
5962-8866202XA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 28-CDIP (0.600", 15.24mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Synchronous
- Memory Size:
- 256Kbit
- Memory Organization:
- 32K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 70ns
- Access Time:
- 70 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 28-CDIP
5962-8866202XA FAQ
1.How can I place an order for 5962-8866202XA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-8866202XA 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 5962-8866202XA reliable?
The price and inventory of 5962-8866202XA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-8866202XA is usually 5 days.
3.What payment methods are accepted for 5962-8866202XA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5962-8866202XA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5962-8866202XA?
5962-8866202XA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5962-8866202XA 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 5962-8866202XA?
For technical support, including 5962-8866202XA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-8866202XA requirements.
6.How does Aetrix verify that 5962-8866202XA is sourced from the original manufacturer or authorized distributors?
All 5962-8866202XA 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 5962-8866202XA meets industry standards.
7.What is the process for return or replacement of 5962-8866202XA?
All 5962-8866202XA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8866202XA, 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 5962-8866202XA part is unused and in its original packaging.
Return procedure for 5962-8866202XA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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