Renesas 5962-8866203XA
- Part No.:
- 5962-8866203XA
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 28-CDIP (0.600", 15.24mm)
- Datasheet:
-
5962-8866203XA.pdf
- Description:
- IC SRAM 256KBIT PARALLEL 28CDIP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
5962-8866203XA from Renesas Electronics is a military-grade 256K (32K × 8-bit) CMOS static RAM with 25ns access time, TTL-compatible I/O, and full MIL-STD-883 Class B compliance for operation from –55°C to +125°C. It features low-power standby (20mA ISB), battery backup data retention at 2V, and is packaged in a 28-pin 600-mil ceramic DIP (CD28) for high-reliability avionics and defense systems.
For engineers reviewing the 5962-8866203XA datasheet, 5962-8866203XA pinout, 5962-8866203XA application, or 5962-8866203XA equivalent, key selection criteria include military temperature qualification, 25ns read cycle timing, CS-controlled standby entry, VCC = 5V ±10% operation, and direct replacement capability for legacy IDT71256S25DB/CD28-based designs.
Technical Context
The 5962-8866203XA implements a fully decoded 15-bit address space (A0–A14) driving a 32K × 8-bit memory array with asynchronous read/write control via independent CS, WE, and OE inputs. Its architecture supports both WE-controlled and CS-controlled write cycles, with guaranteed tRC = 25ns and tAA = 25ns (max) across the full military temperature range.
It integrates TTL-compatible input thresholds (VIH = 2.2V min, VIL = 0.8V max) and output drive (VOL = 0.4V @ 8mA, VOH = 2.4V @ –4mA), enabling direct interface with legacy 5V logic without level translation. Standby current drops to 20mA (ISB) when CS is HIGH, and full CMOS-level standby (ISB1 = 20mA) activates when CS exceeds VHC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 32K × 8-bit (262,144 bits), single-port SRAM |
| Access Time (tAA) | 25ns maximum - guarantees deterministic read latency in hard real-time military control loops |
| Supply Voltage | 5.0V ±10% - compatible with standard 5V military power buses without regulation overhead |
| Operating Temperature | –55°C to +125°C - qualified per MIL-STD-883 Class B for deployment in jet engine bays and missile guidance sections |
| Standby Current (ISB) | 20mA maximum - enables system-level power budgeting during idle states without external gating |
| Input/Output Compatibility | TTL-compatible - eliminates need for bus interface translators in legacy 5V avionics backplanes |
| Package | 28-pin 600-mil ceramic DIP (CD28) - hermetically sealed, high-reliability packaging for extended field life |
Pinout & Package
5962-8866203XA is housed in a 28-pin 600-mil ceramic dual-in-line package (CD28), featuring hermetic sealing and lead finish suitable for high-reliability military assembly processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A14 | Address Inputs | 15-bit unidirectional address bus; fully decoded to select one of 32K byte locations |
| I/O0–I/O7 | Data Input/Output | Bidirectional 8-bit data bus; high-impedance when CS or OE inactive |
| CS | Chip Select | Active-low enable; drives device into low-power standby when HIGH |
| WE | Write Enable | Active-low write control; latches data on falling edge when CS is LOW |
| OE | Output Enable | Active-low output gate; controls data bus direction and Z-state during reads |
| VCC | Power Supply | +5V ±10% main supply; powers core logic and I/O buffers |
| GND | Ground | Reference return path for all signals and power; requires low-inductance PCB routing |
Key Features
| Feature | Design Value |
|---|---|
| MIL-STD-883 Class B compliance | Fully tested per Method 5005 thermal cycling, Method 2003 mechanical shock, and Method 1015 burn-in - certifies suitability for flight-critical hardware |
| 25ns military-grade access time | Guaranteed tAA ≤ 25ns across –55°C to +125°C - enables deterministic timing in radar pulse processing and telemetry buffering |
| Low-power standby mode | ISB = 20mA max at VCC = 5.5V - reduces system cooling load and extends battery runtime in portable mission systems |
| TTL-compatible I/O | VIH ≥ 2.2V, VOL ≤ 0.4V @ 8mA - interoperates directly with legacy 5V FPGAs, microcontrollers, and ASICs without level shifters |
| Hermetic CD28 ceramic DIP | 600-mil body with glass-sealed leads - meets MIL-PRF-38535 requirements for moisture resistance and long-term reliability |
Applications
| Avionics Data Buffering | Tactical Radio Memory |
|---|---|
|
Use Scenario: Real-time buffering of sensor fusion data between inertial measurement units (IMUs) and flight control processors in fighter aircraft. IC Role / Device Role / Timing Role: Asynchronous SRAM providing zero-wait-state read/write access for time-critical navigation state updates. Use Value: 25ns tAA ensures sub-microsecond memory access latency required to meet DO-254 Level A timing constraints in certified flight software stacks. |
Use Scenario: Storing encrypted voice packet headers and channel configuration tables in manpack tactical radios operating in desert environments. IC Role / Device Role / Timing Role: Nonvolatile-configurable memory buffer supporting rapid channel switching and secure boot parameter storage. Use Value: –55°C to +125°C operation and MIL-STD-883 qualification guarantee uninterrupted operation under extreme thermal cycling during vehicle-mounted deployment. |
| Missile Guidance Memory | Spacecraft Telemetry Cache |
|
Use Scenario: Holding target acquisition vectors and seeker calibration coefficients during midcourse guidance phase of surface-to-air missiles. IC Role / Device Role / Timing Role: Radiation-tolerant (per MIL-STD-883 Method 1019) static RAM serving as deterministic scratchpad for onboard guidance algorithms. Use Value: Hermetic CD28 package and 25ns timing ensure reliable execution of Kalman filter iterations under high-G launch vibration and vacuum exposure. |
Use Scenario: Caching housekeeping telemetry packets prior to downlink transmission in low-earth-orbit CubeSat platforms. IC Role / Device Role / Timing Role: Low-power, high-reliability memory node interfacing with radiation-hardened microcontrollers for burst-mode data aggregation. Use Value: 20mA ISB current and 5V tolerance simplify power architecture design while meeting NASA EEE-INST-002 screening requirements for Class S components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-reliability 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 for less timing-critical subsystems such as non-flight-control instrumentation logging | Select when system timing margin allows ≥35ns read cycles and cost optimization is prioritized over peak performance |
| 5962-9213201XA | Same 25ns speed but uses 28-pin SOJ (PJG28) package; lower profile but non-hermetic plastic construction | Applicable in ground-support test equipment where hermeticity is not mandated | Choose only for non-flight, non-deployed systems requiring board-space savings and lower procurement cost |
Compared with 5962-8866203XA, the 5962-8866201XA trades 10ns of speed for broader availability and lower unit cost, while the 5962-9213201XA sacrifices hermetic reliability for compactness-neither offers drop-in replacement without layout or qualification impact.
Availability
5962-8866203XA is available at Aetrix Electronics and suitable for avionics data buffering, tactical radio memory, missile guidance memory, and spacecraft telemetry cache requiring stable component supply under ITAR-controlled distribution protocols.
Supply support for 5962-8866203XA 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 delivering trusted, high-reliability microcontrollers, analog, power, and memory solutions for automotive, industrial, and aerospace markets.
The 5962-8866203XA belongs to Renesas' legacy military SRAM product line, engineered specifically for DO-178C/DO-254-certifiable systems and MIL-PRF-38535-compliant hardware where deterministic timing, hermetic packaging, and extended temperature resilience are mandatory.
FAQ
What is the full military temperature range specification for the 5962-8866203XA?
The 5962-8866203XA is specified for continuous operation from –55°C to +125°C and is fully qualified per MIL-STD-883, Class B. This includes testing for thermal cycling, mechanical shock, and steady-state life under bias across the full range. The device maintains tAA ≤ 25ns and ISB ≤ 20mA throughout this envelope, making it suitable for engine-mounted and munitions applications where ambient extremes are unavoidable. All parametric limits in the datasheet apply across this range unless explicitly noted otherwise.
Does the 5962-8866203XA support battery backup data retention?
No - the 5962-8866203XA is the standard-power (S) variant and does not include battery backup data retention capability. That feature is exclusive to the L-version parts (e.g., 5962-8866203LA), which specify VDR = 2.0V minimum and ICCDR ≤ 800μA. The 5962-8866203XA draws ISB = 20mA in standby and requires continuous VCC to retain data. For battery-backed operation, engineers must select an L-suffix part with matching speed and package.
Is the 5962-8866203XA pin-compatible with commercial IDT71256S25DB devices?
Yes - the 5962-8866203XA shares identical pinout, electrical interface, and functional behavior with the commercial IDT71256S25DB in the same CD28 package. It retains the same A0–A14, I/O0–I/O7, CS, WE, OE, VCC, and GND assignments and meets all DC/AC timing parameters at the more stringent military grade. However, PCB layout must account for enhanced screening, lot traceability, and ITAR handling - no physical redesign is needed for drop-in replacement in existing CD28 footprints.
What package type does the 5962-8866203XA use, and is it hermetically sealed?
The 5962-8866203XA uses a 28-pin 600-mil ceramic dual-in-line package (CD28) with a glass-sealed ceramic body and solder-dipped Kovar leads. It is fully hermetic per MIL-STD-750 Method 1071, achieving leak rates <1×10⁻⁸ atm·cc/sec He. This construction prevents moisture ingress and ensures long-term reliability in high-humidity, salt-fog, and vacuum environments typical of naval and space applications.
Can the 5962-8866203XA be used in new designs despite its legacy status?
Yes - although originally introduced by IDT and now rebranded under Renesas, the 5962-8866203XA remains actively supported for military and aerospace programs. Renesas maintains production continuity, provides full MIL-STD-883 test reports, and issues controlled change notifications (CCNs). Its qualification pedigree, established field history, and ongoing availability make it appropriate for new DO-254/DO-178C-certified designs where proven reliability outweighs next-generation feature sets.
5962-8866203XA 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:
- 55ns
- Access Time:
- 55 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
5962-8866203XA FAQ
1.How can I place an order for 5962-8866203XA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-8866203XA 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 5962-8866203XA reliable?
The price and inventory of 5962-8866203XA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-8866203XA is usually 5 days.
3.What payment methods are accepted for 5962-8866203XA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5962-8866203XA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5962-8866203XA?
5962-8866203XA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5962-8866203XA 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 5962-8866203XA?
For technical support, including 5962-8866203XA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-8866203XA requirements.
6.How does Aetrix verify that 5962-8866203XA is sourced from the original manufacturer or authorized distributors?
All 5962-8866203XA 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 5962-8866203XA meets industry standards.
7.What is the process for return or replacement of 5962-8866203XA?
All 5962-8866203XA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8866203XA, 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 5962-8866203XA part is unused and in its original packaging.
Return procedure for 5962-8866203XA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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