25AA128-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
25AA128-I/SN is a 128Kbit SPI serial EEPROM from Microchip in SOIC-8 package. Key specs include 10MHz SPI clock, 1 million write/erase cycles, and 200-year data retention with industrial temperature rating. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 25AA128-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
- 128Kbit (16KB) SPI EEPROM with 10MHz maximum clock frequency for fast serial data access in embedded systems
- 1,000,000 write/erase cycle endurance ensuring long service life in frequently updated data logging applications
- 200-year minimum data retention providing reliable non-volatile storage for configuration and calibration data
- Industrial-grade I-grade temperature rating in compact SOIC-8 package suitable for harsh environment deployments
Applications
The 25AA128-I/SN is ideal for storing configuration parameters, calibration coefficients, and small datasets in embedded microcontroller systems using SPI communication. It is widely used in industrial sensors, medical devices, and consumer electronics where non-volatile memory with high endurance and long data retention is required. The SOIC-8 package and standard SPI interface make it straightforward to integrate with virtually any microcontroller platform.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 19Weeks |
| 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 | 131072bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 16384words |
| Number of Words Code | 16000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 16KX8 |
| 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 | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the memory capacity and interface of the 25AA128-I/SN?
The 25AA128-I/SN provides 128Kbit (131,072 bits, equivalent to 16KB) of non-volatile EEPROM storage accessed via a standard SPI serial interface at up to 10MHz clock frequency, making it compatible with SPI peripherals on most microcontrollers including AVR, ARM Cortex-M, and PIC families.
What are the endurance and data retention specifications of the 25AA128-I/SN?
The 25AA128-I/SN supports a minimum of 1,000,000 write/erase cycles per memory location and guarantees a minimum data retention of 200 years when stored at standard conditions. These specifications make it highly reliable for applications that require frequent updates such as data logging, event counters, and frequently modified configuration registers.
What package does the 25AA128-I/SN use and what does the I/SN suffix mean?
The 25AA128-I/SN is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) surface-mount package. The I suffix designates the industrial temperature range (-40°C to 85°C), and SN indicates the SOIC-8 package variant in tape-and-reel or tube form, suitable for SMT assembly in industrial and consumer products.
How does the 25AA128-I/SN differ from the 25LC128 variant?
The 25AA128 series is rated for a lower supply voltage range (typically 1.8V to 5.5V for the AA grade) compared to the 25LC128 which operates from 2.5V to 5.5V. Both share the same pinout, SPI interface, and capacity, so the 25AA128-I/SN is the preferred choice for low-voltage 1.8V microcontroller systems while remaining backward compatible in 3.3V and 5V designs.
What are common applications for the 25AA128-I/SN?
Common applications include storing firmware configuration and calibration data in industrial sensors and meters, logging event timestamps and counters in medical and safety devices, holding user preference settings in consumer electronics, and providing non-volatile parameter storage in motor drives and PLC systems that require reliable data persistence across power cycles.
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