25AA640A-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip 25AA640A-I/SN is a 64Kbit SPI serial EEPROM in SOIC-8 package. Features 1.8V minimum operation at 3MHz, 10MHz max clock, and 1 million write/erase cycles. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 25AA640A-I/SN Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1.8V minimum supply voltage operation at 3MHz for low-power embedded systems
- Up to 10MHz SPI clock frequency enabling high-speed serial data transfer
- 1,000,000 write/erase cycle endurance with 200-year minimum data retention
- RoHS-compliant SOIC-8 package with industry-standard pinout for easy PCB integration
Applications
The 25AA640A-I/SN is ideal for storing configuration data, calibration parameters, and firmware settings in industrial and consumer electronics. It is commonly used in microcontroller-based systems, IoT devices, and portable instruments that require reliable non-volatile memory with low-power SPI interface. Its wide temperature range and 1.8V compatibility make it suitable for battery-powered and automotive-adjacent applications.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 9 |
| Additional Feature | OPERATES WITH 1.8VMIN @ 3MHZ |
| Clock Frequency-Max (fCLK) | 10MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Memory Density | 65536bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 8192words |
| Number of Words Code | 8000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 8KX8 |
| Output Characteristics | 3-STATE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.23 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Programming Voltage | 2.5V |
| Qualification Status | Not Qualified |
| Serial Bus Type | SPI |
| Standby Current-Max | 0.000001A |
| Supply Current-Max | 0.005mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.8V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Write Cycle Time-Max (tWC) | 5ms |
| Write Protection | HARDWARE/SOFTWARE |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Mainland China, Taiwan, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 25AA640A-I/SN:
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Frequently Asked Questions
What is the maximum clock frequency supported by the 25AA640A-I/SN?
The 25AA640A-I/SN supports a maximum SPI clock frequency of 10MHz, allowing fast serial data transfers. At 1.8V minimum supply, it operates at up to 3MHz, making it versatile across a range of supply voltages from 1.8V to 5.5V.
What is the write endurance and data retention of the 25AA640A-I/SN?
The 25AA640A-I/SN offers 1,000,000 write/erase cycles endurance and a minimum data retention time of 200 years, ensuring reliable long-term storage of critical configuration and calibration data in embedded systems.
What package does the 25AA640A-I/SN use and is it RoHS compliant?
The 25AA640A-I/SN comes in a standard SOIC-8 (Small Outline IC, 8-pin) package with a factory lead time of approximately 6 weeks. It is fully RoHS compliant (Pb-free, JESD-609 code e3), making it suitable for environmentally conscious designs.
What applications is the 25AA640A-I/SN suitable for?
The 25AA640A-I/SN is well-suited for storing configuration parameters, calibration data, and user settings in IoT sensors, industrial controllers, consumer electronics, and battery-powered devices that use SPI communication and require compact non-volatile memory.
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