25AA020A-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
The 25AA020A-I/SN is a 2 kbit SPI EEPROM from Microchip with 1,000,000 write/erase cycle endurance, 200-year data retention, and a 10 MHz maximum SPI clock, in a SOIC-8 package. It stores configuration data and calibration parameters in embedded systems. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 25AA020A-I/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4129(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 2 kbit (256 byte) SPI EEPROM with 1,000,000 write/erase cycle endurance for long-service-life embedded designs
- 200-year minimum data retention ensures stored configuration and calibration data survives the product lifetime
- 10 MHz SPI clock support enables fast access from modern microcontrollers without bus speed limitations
- SOIC-8 RoHS-compliant package allows straightforward automated assembly and easy breadboard prototyping
Applications
The 25AA020A-I/SN is used to store factory calibration constants, device serial numbers, and user configuration settings in microcontroller-based products where non-volatile storage of 256 bytes is sufficient. Its 1,000,000 write cycle endurance supports frequent parameter updates in industrial controllers, smart meters, and HVAC units without concern for premature memory wear-out. Consumer electronics, appliance control boards, and medical device parameter storage benefit from the combination of 200-year data retention and compact SOIC-8 packaging.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 18Weeks |
| YTEOL | 8 |
| 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 | 2048bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 256words |
| Number of Words Code | 256 |
| Operating Mode | SYNCHRONOUS |
| Organization | 256X8 |
| 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 |
| Screening Level | AEC-Q100 |
| 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, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 25AA020A-I/SN:
Frequently Asked Questions
How many bytes does 25AA020A-I/SN store and how is it organized?
25AA020A-I/SN provides 2048 bits of EEPROM storage organized as 256 bytes, addressable individually over SPI. This capacity is sufficient to hold device serial numbers, MAC addresses, calibration coefficients, or up to 32 floating-point configuration parameters, covering the non-volatile storage needs of the majority of simple embedded system designs.
How does 25AA020A-I/SN's 1,000,000 write cycle rating affect its suitability for frequently-updated data logging?
With 1,000,000 write/erase cycles per byte location, 25AA020A-I/SN can sustain approximately 1 write per minute for nearly 2 years continuously. For data that updates less frequently — such as configuration saves on power-down or hourly calibration updates — this endurance rating comfortably covers the full 10 to 20 year service life of most industrial equipment without wear-leveling firmware.
What SPI clock speed does 25AA020A-I/SN support and does it keep up with modern microcontrollers?
25AA020A-I/SN supports a maximum SPI clock frequency of 10 MHz, which is compatible with the SPI peripheral of virtually all mainstream microcontrollers including PIC, AVR, and ARM Cortex-M devices. At 10 MHz, the entire 256-byte array can be read sequentially in approximately 0.2 ms, fast enough for boot-time configuration loading without measurable impact on system startup latency.
For a product requiring 200-year data retention, is 25AA020A-I/SN an appropriate choice for permanent parameter storage?
Yes. 25AA020A-I/SN guarantees a minimum data retention time of 200 years at room temperature per Microchip's qualification testing. This rating exceeds the service life of any consumer or industrial product and ensures that factory-programmed calibration constants, MAC addresses, or license keys remain intact even through extended storage at warehouse conditions of -40°C to +85°C before field deployment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.5400 | $0.54 |
| 10+ | $0.5320 | $5.32 |
| 25+ | $0.4500 | $11.25 |
| 2800+ | $0.4273 | $1196.44 |
| 5000+ | $0.4200 | $2100.00 |
| 11200+ | $0.4129 | $4624.37 |
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