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    1. Home/
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    3. Memory ICs/
    4. Storage/
    5. 25CS640-E/MS Microchip

    25CS640-E/MS [Microchip]

    25CS640-E/MS
    25CS640-E/MS

    Part No:

    25CS640-E/MS

    Category:

    Storage

    Manufacturer:

    Microchip

    Description:

    64-Kbit SPI Serial EEPROM with 128-bit serial number and enhanced write protection. Organized as 8,192 bytes of 8 bits each, optimized for consumer, industrial, and automotive applications.

    Stock Status:

    Available for RFQ

    Pricing:

    Request Volume Pricing

    Quote Response:

    Within 24 Hours

    Shipping:

    In-stock parts ship in 1–2 business days

    Specification

    Type
    Parameter
    Product FAQ

    1. Is 25CS640-E/MS available for RFQ?

    Yes. 25CS640-E/MS by Microchip is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

    2. Why is there no fixed price for 25CS640-E/MS?

    Pricing for 25CS640-E/MS can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

    3. What are the key specifications of 25CS640-E/MS?

    25CS640-E/MS is a Microchip Storage with Operating Temperature: -40°C ~ +150°C and Internal Capacitance: 7pF. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for 25CS640-E/MS?

    Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

    5. How soon can 25CS640-E/MS be shipped?

    If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

    6. Can you suggest alternatives to 25CS640-E/MS?

    Yes. If 25CS640-E/MS is unavailable, obsolete, or does not meet your required lead time, we can help check similar Microchip Storage parts or compatible alternatives.

    RFQ

    Part Number:

    25CS640-E/MS

    Manufacturer:

    Microchip

    Looking for Pricing? Contact us for volume pricing.

    IMPORTANT NOTICE

    Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

    Featured Product
    ESD Protection
    4000V
    Endurance
    >4 million cycles
    Data Retention
    >200 years
    Write Cycle Time
    4ms
    Standby Current
    10µA
    Clock Frequency
    20MHz
    Supply Voltage
    1.7V ~ 5.5V
    Operating Temperature
    -40°C ~ +150°C
    Package
    MSOP-8, SOIC-8, TSSOP-8, UDFN-8, VDFN-8
    Automotive Grade
    AEC-Q100
    Internal Capacitance
    7pF
    Read Current
    3.0mA
    Undervoltage Lockout
    1.4V ~ 4.8V
    Write Current
    5.0mA

    Products Detail

    The 25CS640 is a 64-Kbit SPI EEPROM organized as 8,192x8 bits with 32-byte page size. It features a preprogrammed 128-bit serial number, user-programmable 32-byte security register, and built-in ECC for reliability. Supports byte/sequential reads and byte/page writes with 4ms self-timed write cycle. Offers configurable write protection (Legacy Block Protection or Enhanced Partition Protection), undervoltage lockout detection, and JEDEC SPI ID support. Operates at 1.7V to 5.5V with clock frequencies up to 20MHz. Low-power design with active currents under 5mA and standby current of 1µA. High-reliability with >4M write cycles, >200-year data retention, and >4000V ESD protection. Available in industrial, extended, and high-temperature grades.

    Key Features

    • 64-Kbit EEPROM (8,192x8, 32-byte page), Backward compatible with 25AA640A/25LC640A/AT25C640B, 128-bit factory serial number + 32-byte user-programmable ID, Built-in ECC logic, Undervoltage lockout detection, JEDEC SPI ID support, Clock frequency: 20MHz (VCC≥4.5V), 10MHz (VCC≥2.5V), 5MHz (VCC≥1.7V), Legacy and Enhanced Write Protection modes, Voltage range: 1.7V to 5.5V, Low power: 5mA write (5.5V), 3mA read (4.5V), 1µA standby, High reliability: >4M write cycles, >200yr retention, >4000V ESD, Temperature ranges: Industrial (-40°C to +85°C), Extended (-40°C to +125°C), Extended (-40°C to +150°C), AEC-Q100 qualified

    Application scenarios

    • consumer electronics
    • industrial
    • automotive
    Shipping & Warranty

    Fast Dispatch: Ships in 5-7 days(in-stock parts within 1-2 days)

    Unishop Global Export: 1-7 days, $40.00

    Guaranteed Delivery: Door-to-door in 30 days

    Compliant Worldwide Shipping: DHL, FedEx, SF, and UPS.

    Feature

    • 30-Day Guarantee
      30-Day Guarantee
    • Fasted Delivery
      Fasted Delivery
    • Hassle-Free Returns
      Hassle-Free Returns
    • Secure payment method
      Secure payment method

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