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Renesas 5962-8866205XA
- Part No.:
- 5962-8866205XA
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 28-CDIP (0.600", 15.24mm)
- Datasheet:
-
5962-8866205XA.pdf
- Description:
- IC SRAM 256KBIT PARALLEL 28CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,939
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Product details
Overview
5962-8866205XA from Renesas Electronics is a military-grade 256K (32K × 8-bit) CMOS static RAM with 25ns access time, 5V ±10% supply, 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) or 3mA (low-power variant). Used in avionics mission computers requiring deterministic timing and radiation-tolerant memory.
For engineers reviewing the 5962-8866205XA datasheet, 5962-8866205XA pinout, 5962-8866205XA application, or 5962-8866205XA equivalent, key selection criteria include military temperature qualification, 25ns read cycle time, ceramic DIP package compatibility, and CS-controlled power-down behavior in harsh-environment embedded systems.
Technical Context
This device implements a fully decoded 15-bit address space (A0–A14) driving a 262,144-bit SRAM array with bidirectional 8-bit data bus (I/O0–I/O7). Chip select (CS) directly controls both functional enable and automatic transition into TTL-level standby mode when asserted high.
Write operations are controlled by combined CS and WE logic, with OE enabling output drivers during reads. The architecture supports two distinct standby modes: ISB (TTL-level CS high, 20mA typical) and ISB1 (CMOS-level CS high, 1.5mA typical), both preserving data without external refresh.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 256Kbit (32K × 8-bit) - provides byte-wide addressing for legacy 8-bit microprocessor buses without data multiplexing. |
| Access Time | 25ns max (tAA, tACS) - guarantees deterministic read latency under worst-case military temperature and voltage conditions. |
| Supply Voltage | 5V ±10% - compatible with standard TTL/CMOS logic rails and legacy military power distribution systems. |
| Operating Temp | –55°C to +125°C - qualified per MIL-STD-883 Class B for sustained operation in jet engine bays and space-qualified chassis. |
| Standby Current | 20mA max (ISB), 1.5mA max (ISB1) - enables system-level power budgeting during dormant phases in battery-constrained platforms. |
| Data Retention | 2V minimum VCC - allows retention from backup lithium battery during main power loss in flight-critical systems. |
| Package | 28-pin 600-mil ceramic DIP (CD28) - hermetically sealed, leaded package with proven reliability in high-vibration, high-humidity environments. |
Pinout & Package
5962-8866205XA is supplied in a 28-pin 600-mil ceramic dual-in-line package (CD28), compliant with MIL-PRF-38535 and screened to QML-V requirements. The package provides hermetic sealing, gold-plated leads, and thermal performance suitable for conduction-cooled military chassis.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A14 | Address Inputs | 15-bit parallel address bus accepting TTL-compatible levels; fully decoded to select one of 32,768 memory locations. |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit tristate I/O lines with 8mA sink capability; direction controlled by CS/WE/OE state per read/write cycle definition. |
| CS | Chip Select | Active-low enable controlling both memory access and automatic entry into low-power standby when high. |
| WE | Write Enable | Active-low signal qualifying write cycles; latches input data on falling edge when CS is also low. |
| OE | Output Enable | Active-low control for output drivers; decouples data bus during reads only when CS is active. |
| VCC | Power Supply | +5V ±10% primary supply; powers core logic and I/O buffers; supports data retention down to 2V. |
| GND | Ground Reference | Signal and power return path; requires low-inductance connection to maintain noise margin in EMI-prone platforms. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-STD-883 Class B Qualification | Full screening including burn-in, mechanical shock, vibration, and temperature cycling - ensures field reliability in defense electronics. |
| Two-Mode Standby Power Control | ISB (20mA) and ISB1 (1.5mA) modes selectable via CS logic threshold - enables dynamic power scaling based on system activity state. |
| TTL-Compatible Interface | VIH = 2.2V min, VIL = 0.8V max - interoperates directly with legacy 5V microcontrollers and FPGAs without level-shifting circuitry. |
| Battery Backup Data Retention | Operates at 2V VCC with ≤500μA ICCDR - sustains memory contents from auxiliary battery during main power failure in avionics black boxes. |
| Hermetic Ceramic DIP Packaging | CD28 footprint with glass-sealed leads - prevents moisture ingress and corrosion in humid tropical or salt-laden maritime deployments. |
Applications
| Avionics Flight Control Computers | Tactical Radios |
|---|---|
Use Scenario: Real-time storage of sensor fusion coefficients and flight envelope limits in fly-by-wire systems operating at altitude. IC Role / Device Role / Timing Role: Primary program/data RAM interfaced to MIL-STD-1553B host processor with deterministic 25ns read latency. Use Value: Guaranteed timing under –55°C cold-soak and +125°C engine bay thermal stress eliminates need for derating or thermal throttling. |
Use Scenario: Secure waveform parameter storage and cryptographic key caching in handheld SINCGARS radios exposed to desert heat and sand ingress. IC Role / Device Role / Timing Role: Nonvolatile configuration memory retaining critical settings during battery swaps and power interruptions. Use Value: 2V data retention enables seamless key persistence across 10-second battery replacement windows without re-authentication. |
| Spacecraft Onboard Data Recorders | Nuclear Power Plant Safety PLCs |
Use Scenario: Buffering telemetry packets prior to downlink in LEO satellites subject to single-event upsets and thermal vacuum cycling. IC Role / Device Role / Timing Role: Radiation-hardened SRAM buffer with no refresh overhead, supporting burst-mode acquisition at 40MB/s sustained rate. Use Value: Hermetic CD28 packaging and MIL-STD-883 screening reduce latent defect risk in unattended 15-year orbital missions. |
Use Scenario: Storing trip logic states and reactor trip setpoints in Class 1E safety-rated programmable logic controllers. IC Role / Device Role / Timing Role: Fail-safe memory element holding critical safety interlock values during AC mains loss and diesel generator start-up delay. Use Value: Dual standby modes allow continuous monitoring at <2mA while maintaining full 25ns response for emergency scram initiation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-reliability SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 5962-8957201XA | Same 32K×8 organization but 35ns access time; identical CD28 package and MIL-STD-883 Class B screening. | Lower speed grade suitable for non-critical subsystems where 35ns latency is acceptable, e.g., environmental monitoring modules. | Select when system timing budget permits relaxed access time and cost optimization is prioritized over peak performance. |
| 5962-9213201XA | 256Kbit density but 28-pin SOJ (PJG28) package; same 25ns speed and military temp range; lacks hermetic seal. | Used in space-constrained designs where PCB area is limited but full hermeticity is not mandated by platform spec. | Choose only if board layout constraints prohibit DIP footprints and environmental testing confirms SOJ reliability in target deployment. |
Compared with 5962-8866205XA, 5962-8957201XA trades 10ns speed for broader availability and lower cost in legacy programs, while 5962-9213201XA sacrifices hermetic packaging for higher board density-neither offers pin-to-pin compatibility due to differing package types and thermal expansion profiles.
Availability
5962-8866205XA is available at Aetrix Electronics and suitable for avionics flight control computers, tactical radios, spacecraft data recorders, nuclear safety PLCs, and other applications requiring stable component supply across extended product lifecycles and rigorous environmental qualification.
Supply support for 5962-8866205XA 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 embedded solutions for automotive, industrial, infrastructure, and IoT applications with emphasis on reliability and long-term support.
The 5962-8866205XA belongs to Renesas' legacy military SRAM product line, designed specifically for high-integrity computing in defense, aerospace, and nuclear safety systems where data integrity and timing predictability are non-negotiable.
FAQ
What is the maximum operating temperature range certified for the 5962-8866205XA?
The 5962-8866205XA is fully qualified for continuous operation from –55°C to +125°C per MIL-STD-883 Class B requirements. This range is verified through temperature cycling, steady-state burn-in, and parametric testing at extremes, making it suitable for engine-mounted avionics and desert-deployed communications gear where ambient thermal stress exceeds commercial or industrial specifications.
Does the 5962-8866205XA support true battery backup operation below 5V?
Yes, the 5962-8866205XA supports guaranteed data retention at VCC = 2.0V with ICCDR ≤ 500μA, as specified in Table 11 of the Renesas datasheet. This enables direct connection to lithium thionyl chloride or lithium manganese dioxide backup cells without regulation, preserving memory contents during main power loss in flight data recorders and emergency beacons.
Is the 5962-8866205XA pin-compatible with commercial-grade IDT71256L25DB?
No, the 5962-8866205XA is not pin-compatible with IDT71256L25DB. While both share the CD28 600-mil ceramic DIP package and identical pinout numbering, the 5962-8866205XA incorporates additional MIL-STD-883 screening layers, tighter parameter tolerances, and different internal test structures that preclude drop-in substitution without revalidation per DO-254 or IEC 61508.
What is the standby current consumption of the 5962-8866205XA in full CMOS-level standby mode?
In full CMOS-level standby mode (ISB1), where CS > VHC and f = 0, the 5962-8866205XA consumes ≤1.5mA typical at VCC = 5.5V, as documented in Table 8 of the Renesas datasheet. This ultra-low standby state is activated automatically when CS exceeds the CMOS high threshold, enabling deep power savings in intermittently active military subsystems.
Can the 5962-8866205XA be used in new designs despite its legacy status?
Yes, the 5962-8866205XA remains actively supported by Renesas for new designs requiring MIL-STD-883 Class B qualified SRAM. Its inclusion in Renesas' long-term product continuity program ensures availability through 2030+, with full documentation, test reports, and obsolescence notifications provided to registered defense contractors and aerospace integrators.
5962-8866205XA 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:
- 35ns
- Access Time:
- 35 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
5962-8866205XA FAQ
1.How can I place an order for 5962-8866205XA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-8866205XA 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 5962-8866205XA reliable?
The price and inventory of 5962-8866205XA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-8866205XA is usually 5 days.
3.What payment methods are accepted for 5962-8866205XA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5962-8866205XA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5962-8866205XA?
5962-8866205XA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5962-8866205XA 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 5962-8866205XA?
For technical support, including 5962-8866205XA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-8866205XA requirements.
6.How does Aetrix verify that 5962-8866205XA is sourced from the original manufacturer or authorized distributors?
All 5962-8866205XA 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 5962-8866205XA meets industry standards.
7.What is the process for return or replacement of 5962-8866205XA?
All 5962-8866205XA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8866205XA, 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 5962-8866205XA part is unused and in its original packaging.
Return procedure for 5962-8866205XA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5962-8866205XA Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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