25AA1024-I/SM Microchip Integrated Circuit (Small Outline Packages) In Stock
The 25AA1024-I/SM is a 1Mbit (128Kx8) SPI serial EEPROM operating from 1.8V with up to 20 MHz clock in a SOIJ-8 package. It provides 100,000 write/erase cycles and 200-year data retention for reliable non-volatile storage. Available from stock worldwide with competitive pricing.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 25AA1024-I/SM 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
- 1Mbit (128Kx8) SPI EEPROM with 20 MHz maximum clock frequency enabling fast sequential data transfers for high-throughput embedded logging applications
- 1.8V minimum supply voltage compatibility enabling direct interfacing with low-power MCUs and SoCs without level translation in IoT and portable designs
- 200-year data retention with 100,000 endurance cycles per word ensuring long-term reliability in data storage, configuration, and calibration applications
Applications
The 25AA1024-I/SM is designed for embedded systems requiring large non-volatile SPI memory for data logging, firmware parameter storage, and calibration data in IoT devices and industrial sensors. Its 1.8V operation and 20 MHz SPI interface make it ideal for pairing with low-power microcontrollers in battery-operated equipment such as wearables, remote monitoring nodes, and portable instruments. The industrial temperature range ensures reliable performance across demanding deployment environments from -40°C to +85°C.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIJ-8 |
| Factory Lead Time | 6Weeks |
| Additional Feature | 200 YEARS OF DATA RETENTION; 1000000 ENDURANCE CYCLES/WORD |
| Clock Frequency-Max (fCLK) | 20MHz |
| Endurance | 100000 Write/Erase Cycles |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Memory Density | 1048576bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Words | 131072words |
| Number of Words Code | 128000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 128KX8 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power Supplies | 2/5 V |
| Qualification Status | Not Qualified |
| Serial Bus Type | SPI |
| Standby Current-Max | 0.000001A |
| Subcategory | Flash Memories |
| Supply Current-Max | 0.01mA |
| 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 |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Type | NOR TYPE |
| Write Cycle Time-Max (tWC) | 6ms |
| Write Protection | HARDWARE/SOFTWARE |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 25AA1024-I/SM:
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Frequently Asked Questions
What is the memory capacity and organization of the 25AA1024-I/SM?
The 25AA1024-I/SM provides 1,048,576 bits (1Mbit) of EEPROM storage organized as 128K x 8 bits, accessed via a 4-wire SPI interface at up to 20 MHz. This 128KB capacity is among the largest available in SPI EEPROM format, making it suitable for applications requiring substantial non-volatile storage without the complexity of NOR Flash management.
What are the endurance and data retention specifications of the 25AA1024-I/SM?
The 25AA1024-I/SM specifies 100,000 write/erase cycles per word and 200 years minimum data retention under normal conditions. While the endurance is lower than some I2C counterparts, the 200-year retention guarantee ensures that stored configuration data, calibration constants, and infrequently updated records remain intact throughout the product lifecycle.
What supply voltage does the 25AA1024-I/SM require?
The 25AA1024-I/SM operates from a minimum of 1.8V, making it directly compatible with modern low-voltage microcontrollers and SoCs operating at 1.8V or 3.3V. This eliminates the need for level-shifting circuitry in most embedded designs, reducing BOM cost and PCB complexity in portable, IoT, and battery-powered applications.
What package does the 25AA1024-I/SM use?
The 25AA1024-I/SM is housed in a SOIJ-8 (Small Outline IC with J-leads, 8-pin) surface mount package, designated JESD-30 code R-PDSO-G8. The J-lead profile provides additional compliance compared to gull-wing leads, improving solder joint reliability under thermal cycling and mechanical stress in industrial and automotive-adjacent applications.
What are common alternatives to the 25AA1024-I/SM?
Pin-compatible alternatives include the Microchip 25LC1024-I/SM (5V version, same pinout) and 25FC1024-I/SM (Fast Plus). For I2C-based alternatives of similar capacity, the Microchip 24AA1025 or STMicroelectronics M95M10 (SPI, 1Mbit) are options. If higher endurance is needed, switching to a 1Mbit NOR Flash such as the SST25VF010A offers 100,000 typical sector erase cycles with larger page size.
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