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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Renesas 5962-8866206XA

Name: 5962-8866206XA
Brand: Renesas
SKU: 5962-8866206XA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 5962-8866206XA

Manufacturer:: Renesas

Category:: Memory

Package:: 28-CDIP (0.600", 15.24mm)

Datasheet:: 5962-8866206XA.pdf

Description:: IC SRAM 256KBIT PARALLEL 28CDIP

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Product details

Overview

5962-8866206XA from Renesas Electronics is a 256K (32K × 8-bit) high-speed CMOS static RAM with military-grade reliability, 45ns maximum access time, 5V ±10% supply, and –55°C to +125°C operating range. It features TTL-compatible I/O, battery-backed data retention down to 2V, and dual standby modes for power optimization in avionics and defense computing systems.

For engineers reviewing the 5962-8866206XA datasheet, 5962-8866206XA pinout, 5962-8866206XA application, or 5962-8866206XA equivalent, key selection criteria include MIL-STD-883 Class B compliance, 28-pin ceramic DIP package, CS-controlled low-power standby, and verified 45ns read/write timing across full military temperature range.

Technical Context

This device implements a fully decoded 15-bit address space (A0–A14) driving a 262,144-bit memory array with bidirectional 8-bit data bus (I/O0–I/O7). Control logic uses three independent enables-CS, WE, and OE-with priority-based output gating and automatic high-impedance state transitions on deselect.

It supports two distinct standby modes: TTL-level standby (ISB) triggered by CS > VIH, and full CMOS-level standby (ISB1) activated when CS > VHC, reducing current to 1.5mA (L version) or 20mA (S version) at VCC max. Data retention operates at 2V with ≤800μA ICCDR, validated across –55°C to +125°C.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	256K-bit (32K × 8), enabling direct byte-addressable storage for real-time firmware buffers and configuration tables.
Access Time	45ns max (tAA, tACS), ensuring compatibility with 22 MHz synchronous bus interfaces in legacy military controllers.
Supply Voltage	5V ±10%, supporting standard 5V TTL/CMOS system rails without regulation overhead.
Operating Temp	–55°C to +125°C, qualified per MIL-STD-883 Class B for deployment in unheated airborne or ground vehicle electronics.
Standby Current	1.5mA (ISB1, L version), enabling >1-year battery backup operation using primary lithium cells in mission-critical holdover mode.
Data Retention	2V minimum VCC, allowing retention during brownout or main power loss without external supervisor circuitry.
I/O Compatibility	TTL-input and TTL-output levels, eliminating level-shifter requirements when interfacing with 74LS/ALS logic or microprocessor buses.

Pinout & Package

5962-8866206XA is supplied in a 28-pin ceramic dual in-line package (CDIP), 600 mil width, hermetically sealed for moisture resistance and long-term reliability in harsh environments.

Pin/Terminal	Circuit Role	Design Meaning
A0–A14	Address Inputs	15-bit parallel address bus accepting full 32K-word decode; no internal latching - requires stable address during CS low.
I/O0–I/O7	Bidirectional Data Bus	8-bit tristatable I/O lines sharing pins for read and write; high-impedance when CS high or OE/WE inactive.
CS	Chip Select	Active-low enable controlling both memory access and automatic entry into ISB/ISB1 standby modes.
WE	Write Enable	Active-low signal qualifying write cycles; must be low concurrently with CS low to initiate data store.
OE	Output Enable	Active-low control for output drivers only; does not affect standby current or internal array activity.
VCC	Power Supply	+5V ±10% main supply; decoupling required within 10mm of pin per MIL-STD-883 layout guidelines.
GND	Ground Reference	Signal and power return; must be connected to low-inductance chassis ground in EMI-sensitive platforms.

Key Features

Feature	Design Value
MIL-STD-883 Class B compliance	Fully tested to mechanical shock, vibration, thermal cycling, and burn-in per Method 5005, enabling use in DoD-accredited hardware without requalification.
Dual standby power modes	Reduces system-level power by >95% versus active operation - ISB1 draws only 1.5mA, critical for battery-limited field-deployed systems.
2V data retention	Preserves stored configuration or telemetry during complete main power failure, eliminating need for external nonvolatile backup.
TTL-compatible interface	Direct connection to legacy 80C86, Z80, or MIL-STD-1553 bus controllers without voltage translation or buffering.
Hermetic 28-pin CDIP	600-mil ceramic body with glass-sealed leads ensures 10+ year operational life in high-humidity, salt-fog, or vacuum environments.

Applications

Avionics Flight Control Memory	Tactical Radio Configuration Storage
Use Scenario: Storing real-time flight control coefficients and sensor calibration tables in fly-by-wire ECUs subject to rapid thermal transients and EMI. IC Role / Device Role / Timing Role: Primary volatile program/data buffer interfaced directly to radiation-hardened microcontroller bus with 45ns timing margin. Use Value: MIL-STD-883 qualification ensures uninterrupted operation during 20g shock events; 2V retention preserves trim data during engine start-up voltage sag.	Use Scenario: Holding encrypted channel maps and cryptographic keys in handheld SINCGARS radios exposed to desert and maritime conditions. IC Role / Device Role / Timing Role: Secure configuration SRAM accessed during boot and channel switching, isolated from main processor via dedicated address decode. Use Value: Hermetic CDIP prevents moisture ingress-induced bit flips; –55°C to +125°C range supports operation inside sealed, uninsulated radio housings.
Missile Guidance System Buffer	Naval Radar Signal Processing Cache
Use Scenario: Caching intermediate guidance algorithm outputs in solid-fuel missile canisters stored for years before launch under extreme temperature cycling. IC Role / Device Role / Timing Role: High-reliability scratchpad memory synchronized to FPGA-based guidance core with deterministic 45ns read latency. Use Value: Battery-backed 2V retention maintains critical initialization vectors during multi-year storage; Class B screening eliminates infant mortality risk.	Use Scenario: Temporary storage of digitized RF samples in rotating naval radar front-ends where ambient temperature swings exceed 80°C daily. IC Role / Device Role / Timing Role: Low-latency frame buffer between ADC and DSP, clocked at 22 MHz with strict setup/hold timing enforced by CS/WE coordination. Use Value: Dual standby modes cut average power by 92% during antenna dwell periods; TTL compatibility avoids timing skew from level shifters.

Avionics Flight Control Memory

Tactical Radio Configuration Storage

Use Scenario: Storing real-time flight control coefficients and sensor calibration tables in fly-by-wire ECUs subject to rapid thermal transients and EMI.

IC Role / Device Role / Timing Role: Primary volatile program/data buffer interfaced directly to radiation-hardened microcontroller bus with 45ns timing margin.

Use Value: MIL-STD-883 qualification ensures uninterrupted operation during 20g shock events; 2V retention preserves trim data during engine start-up voltage sag.

Use Scenario: Holding encrypted channel maps and cryptographic keys in handheld SINCGARS radios exposed to desert and maritime conditions.

IC Role / Device Role / Timing Role: Secure configuration SRAM accessed during boot and channel switching, isolated from main processor via dedicated address decode.

Use Value: Hermetic CDIP prevents moisture ingress-induced bit flips; –55°C to +125°C range supports operation inside sealed, uninsulated radio housings.

Missile Guidance System Buffer

Naval Radar Signal Processing Cache

Use Scenario: Caching intermediate guidance algorithm outputs in solid-fuel missile canisters stored for years before launch under extreme temperature cycling.

IC Role / Device Role / Timing Role: High-reliability scratchpad memory synchronized to FPGA-based guidance core with deterministic 45ns read latency.

Use Value: Battery-backed 2V retention maintains critical initialization vectors during multi-year storage; Class B screening eliminates infant mortality risk.

Use Scenario: Temporary storage of digitized RF samples in rotating naval radar front-ends where ambient temperature swings exceed 80°C daily.

IC Role / Device Role / Timing Role: Low-latency frame buffer between ADC and DSP, clocked at 22 MHz with strict setup/hold timing enforced by CS/WE coordination.

Use Value: Dual standby modes cut average power by 92% during antenna dwell periods; TTL compatibility avoids timing skew from level shifters.

Equivalent & Alternatives

The following parts are listed as comparable options for similar static RAM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
5962-8957201XA	Same 256K × 8 architecture but 55ns access; higher ISB1 current (3mA vs. 1.5mA); identical MIL-STD-883 Class B test flow.	Suitable where 55ns timing suffices and lower standby current is not required; common in legacy radar subsystems with looser power budgets.	Select 5962-8957201XA only if 55ns access meets system timing slack and board layout already accommodates its slightly higher thermal dissipation.
5962-9213201XA	32K × 8 organization with 35ns access; uses 28-pin SOJ instead of CDIP; rated –55°C to +125°C but not Class B screened.	Used in newer compact modules where SOJ footprint saves board area, but lacks full military reliability validation for safety-critical roles.	Choose 5962-9213201XA for size-constrained non-safety applications; avoid where MIL-STD-883 Class B documentation or hermetic sealing is mandated.

Compared with 5962-8866206XA, 5962-8957201XA trades 10ns speed for marginally higher standby current and identical qualification, while 5962-9213201XA sacrifices hermetic packaging and Class B screening for smaller SOJ footprint and faster 35ns access - making 5962-8866206XA the sole choice when full military reliability and 45ns performance are jointly required.

Availability

5962-8866206XA is available at Aetrix Electronics and suitable for avionics flight control, tactical radio configuration, missile guidance buffer, and naval radar signal processing applications requiring stable component supply under extended lifecycle management.

Supply support for 5962-8866206XA 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 aerospace markets.

The 5962-8866206XA belongs to Renesas' legacy military SRAM product line, designed specifically to meet stringent DoD requirements for high-reliability, radiation-tolerant, temperature-resilient memory in mission-critical embedded systems.

FAQ

What is the maximum operating temperature range certified for 5962-8866206XA?

The 5962-8866206XA is fully qualified for continuous operation from –55°C to +125°C per MIL-STD-883 Class B environmental testing, including thermal cycling, high-temperature life, and temperature humidity bias. This range is explicitly guaranteed in the Renesas datasheet and verified through lot-specific qualification reports, making it suitable for uncooled avionics and ground vehicle electronics.

Does 5962-8866206XA support true battery backup operation below 5V?

Yes, the 5962-8866206XA (L version) guarantees data retention at VCC = 2.0V minimum, drawing ≤800μA typical current. This is confirmed in Table 11 of the datasheet under "Data Retention Characteristics" and applies across the full –55°C to +125°C range. No external circuitry is needed - simply connect a 2V lithium cell to VCC during main power loss.

Is 5962-8866206XA pin-compatible with commercial-grade IDT71256L45DB?

No - although both share the same 28-pin CDIP footprint and signal naming, 5962-8866206XA is a fully screened military part with different internal test limits, burn-in protocols, and lot traceability per MIL-PRF-38535. The IDT71256L45DB lacks Class B qualification and is not approved for use in DoD-accredited hardware without revalidation.

What are the two standby current modes supported by 5962-8866206XA?

The 5962-8866206XA supports ISB (TTL-level standby, 20mA max) when CS > VIH, and ISB1 (CMOS-level standby, 1.5mA max) when CS > VHC. Both modes disable internal array activity and place I/O in high-Z. ISB1 is enabled only in the L-version and requires tighter CS threshold control, delivering >90% additional power savings over ISB.

Can 5962-8866206XA be used with 3.3V logic interfaces?

No - the 5962-8866206XA requires 5V ±10% supply and specifies TTL-compatible input thresholds (VIH = 2.2V min, VIL = 0.8V max) and output drive (VOH = 2.4V min at –4mA). Interfacing with 3.3V systems requires level-shifting circuitry; it is not 3.3V tolerant and sustained exposure to 3.3V logic levels may violate DC input voltage specifications.

5962-8866206XA 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:: 25ns

Access Time:: 25 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

5962-8866206XA FAQ

1.How can I place an order for 5962-8866206XA through Aetrix?

Please submit a Request for Quotation (RFQ) for 5962-8866206XA 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 5962-8866206XA reliable?

The price and inventory of 5962-8866206XA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-8866206XA is usually 5 days.

3.What payment methods are accepted for 5962-8866206XA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5962-8866206XA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 5962-8866206XA?

5962-8866206XA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 5962-8866206XA 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 5962-8866206XA?

For technical support, including 5962-8866206XA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-8866206XA requirements.

6.How does Aetrix verify that 5962-8866206XA is sourced from the original manufacturer or authorized distributors?

All 5962-8866206XA 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 5962-8866206XA meets industry standards.

7.What is the process for return or replacement of 5962-8866206XA?

All 5962-8866206XA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8866206XA, 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 5962-8866206XA part is unused and in its original packaging.

Return procedure for 5962-8866206XA:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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