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25LC256-E/SN
+BOMIC EEPROM 256KBIT SPI 8SOIC
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제조업체마이크로칩 기술
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제조업체 부품 #25LC256-E/SN
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데이터시트 25LC256-E/SN DataSheet
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패키지 SOIC-8
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재고6149
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사양
| 속성 | 가치 |
| Package / Case | Tube |
| Part Status | Active |
| Memory Type | Non-Volatile |
| Memory Format | EEPROM |
| Technology | EEPROM |
| Memory Size | 256Kb (32K x 8) |
| Memory Interface | SPI |
| Clock Frequency | 10 MHz |
| Write Cycle Time - Word Page | 5ms |
| Voltage - Supply | 2.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
개요
Description
This device supports a wide voltage range from 2.5V to 5.5V, making it suitable for various applications. It offers high endurance with over a million write cycles and data retention of over 200 years, ensuring long-term reliability. The 25LC256-E/SN also features a write protection mechanism to prevent inadvertent writes, enhancing data integrity. Its small 8-pin SOIC package allows for easy integration into compact designs. Typical applications include data logging, configuration data storage, and use in consumer electronics, industrial systems, and automotive applications.
Equivalent
1. AT25256 by Microchip (formerly Atmel): Similar specifications with SPI interface.
2. M95256 by STMicroelectronics: Offers 256Kb with SPI interface.
3. CAT25256 by ON Semiconductor: A 256Kb EEPROM with SPI support.
4. SST25VF256 by SST (now part of Microchip): Also a 256Kb SPI EEPROM.
These alternatives offer similar memory capacity and SPI interface compatibility.
Features
1. Memory Capacity: It has a storage capacity of 32,768 bytes or 256 kilobits.
2. Interface: Utilizes the Serial Peripheral Interface (SPI) bus for communication, supporting data rates up to 10 MHz.
3. Voltage Range: Operates within a wide voltage range of 2.5V to 5.5V, making it suitable for various applications.
4. Page Write Buffer: Includes a 64-byte page write capability, which enhances programming efficiency.
5. Low Power Consumption: Designed for energy efficiency with standby and read currents at 1 µA and 5 mA, respectively.
6. Endurance and Retention: Features 1,000,000 erase/write cycles and data retention of over 200 years.
7. Temperature Range: Functions effectively within an industrial temperature range of -40°C to +85°C.
8. Package Type: Available in an 8-pin SOIC package.
These features make the 25LC256-E/SN suitable for applications requiring reliable, non-volatile memory storage with efficient power usage.
Pinout
Here’s a brief overview of its pin functions:
1. CS (Chip Select): Activates the device when low.
2. SO (Serial Data Output): Outputs data from the EEPROM.
3. WP (Write-Protect): Protects data; when low, write operations are disabled.
4. VSS: Ground reference.
5. SI (Serial Data Input): Inputs data to the EEPROM.
6. SCK (Serial Clock): Provides clock pulses for data transfer.
7. HOLD: Pauses communication while active.
8. VCC: Supply voltage.
The 25LC256 is commonly used for data storage applications requiring non-volatile memory with a simple interface and ease of use.
Manufacturer
Application
1. Consumer Electronics: Used for storing firmware and configuration settings.
2. Industrial Automation: Employed in machinery for parameter storage and logging.
3. Automotive Systems: Utilized to retain data in infotainment systems and engine control units.
4. Medical Devices: Stores calibration and patient data.
5. Telecommunications: Provides non-volatile storage for network devices.
6. IoT Devices: Facilitates data logging and configuration storage.
These applications benefit from the chip's low power consumption, high endurance, and reliable data retention.