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Microchip 256 kB Serial SPI EEPROM 50 ns 8-Pin SOIC Surface Mount 1.8V-5.5V 25AA256-I/SN
Specifications
| Country of Origin | India |
|---|---|
| Brand | Microchip |
| Standby Current | 1 μA (typical) |
| Length | 4.9mm |
| Model | 25AA256-I/SN |
| Width | 6mm |
| Mount Type | Surface |
| Maximum Operating Temperature | 85°C |
| Package Type | SOIC |
| Minimum Operating Temperature | -40°C |
| Memory size | 256kB |
| Interface Type | Serial-SPI |
| Pin Count | 8 |
| Automotive Standard | AEC-Q100 |
| Maximum Supply Voltage | 5.5V |
| Minimum Supply Voltage | 1.8V |
| Supply Current | 6mA |
| Maximum Clock Frequency | 10MHz |
| Organisation | 32K x 8 Bit |
| Number of Bits per Word | 8 |
| Maximum Random Access Time | 50ns |
| Number of Words | 32k |
| Read Current | 6 mA (typical) |
| Built-In Write Protection | Power-on/off data protection circuitry, Write enable latch, Write-protect pin |
| Block Write Protection | Protect none, 1/4, 1/2 or all of array |
Key Features
- Offers high-speed operation with a maximum clock frequency of 10 MHz.
- Operates over a supply voltage range of 1.8 V to 5.5 V for versatile power compatibility.
- Features 32K x 8-bit organization with a 64-byte page write capability.
- Includes built-in write protection circuitry and block write protection options.
- Guaranteed data retention exceeding 200 years for long-term reliability.
- Withstands over 1 million erase/write cycles ensuring durability.
- Low typical standby current of 1 µA enables power-efficient designs.
- Automotive grade compliant with AEC-Q100 standard supporting operation from -40 °C to 85 °C.
Product Description
Microchip 25AA256-I/SN is a 256 kB Serial SPI EEPROM designed for industrial and automotive memory storage applications requiring high speed and reliability. The device operates at supply voltages from 1.8 V up to 5.5 V and supports a maximum clock frequency of 10 MHz, enabling fast serial communication through its SPI interface.
This EEPROM comes in an 8-Pin SOIC surface mount package with compact dimensions of 4.9 mm length and 6 mm width suited for space-constrained PCB layouts. It provides a 32K x 8-bit memory organization and a 64-byte page size for efficient write operations.
Designed for robust industrial use, the 25AA256-I/SN features extensive built-in write protection mechanisms including power-on/off data protection circuitry, write enable latch, and write-protect pin, as well as block write protection facilitating selective protection of memory areas.
Data retention is rated for over 200 years with endurance exceeding 1 million erase/write cycles, ensuring long-term data integrity in demanding environments. The device’s operating temperature range from -40 °C to 85 °C and compliance with AEC-Q100 confirm its suitability for automotive-grade electronic systems.
Low power consumption is achieved with a standby current typically only 1 µA and a read current of 6 mA, aiding in energy-efficient design implementations. The maximum random access time is 50 ns, supporting rapid memory access for time-critical applications.
High-speed SPI interface supporting up to 10 MHz clock frequency. 256 kB capacity organized as 32K words of 8 bits each. Flexible voltage operation from 1.8 V to 5.5 V. Enhanced write protection with multiple safety features.
Long data retention and high endurance for reliability. Compact 8-Pin SOIC package compatible with surface mount technology. Automotive standard AEC-Q100 compliant for wide temperature operation.
This EEPROM is ideal for use in industrial, automotive, consumer electronics, and communication equipment requiring non-volatile memory. The 25AA256-I/SN enables efficient and reliable storage solutions for embedded systems.
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Frequently Asked Questions
The maximum clock frequency of the 25AA256-I/SN is 10 MHz, allowing for high-speed serial communication.
This EEPROM operates over a supply voltage range of 1.8 V to 5.5 V, providing versatility for different power requirements.
The memory organization of this EEPROM is 32K x 8 bits, which means it has 32,768 words of 8 bits each.
The package dimensions of the 25AA256-I/SN are 4.9 mm in length and 6 mm in width, suitable for surface mount applications.
It includes power-on/off data protection circuitry, a write enable latch, a write-protect pin, and block write protection options.
The typical standby current for the 25AA256-I/SN is 1 μA, which helps in designing power-efficient systems.
The maximum random access time for this EEPROM is 50 ns, enabling rapid memory access for time-sensitive applications.
This EEPROM can endure over 1 million erase/write cycles, ensuring long-term reliability in demanding environments.
The operating temperature range for the 25AA256-I/SN is from -40 °C to 85 °C, making it suitable for automotive applications.
The 25AA256-I/SN uses a Serial-SPI interface for communication, facilitating easy integration into various systems.
Yes, this EEPROM is compliant with the AEC-Q100 automotive standard, confirming its suitability for automotive-grade applications.
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