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AT25256B-SSHL-B
+BOMIC EEPROM 256KBIT SPI 8SOIC
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メーカーマイクロチップ・テクノロジー
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メーカー品番 #AT25256B-SSHL-B
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在庫状況8987
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Part Status | Active |
| Digi Key Programmable | Verified |
| Memory Type | Non-Volatile |
| Memory Format | EEPROM |
| Technology | EEPROM |
| Memory Size | 256Kbit |
| Memory Organization | 32K x 8 |
| Memory Interface | SPI |
| Write Cycle Time - Word, Page | 5ms |
| Voltage - Supply | 1.8V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| Base Product Number | AT25256 |
| Clock Frequency | 20 MHz |
概要
Description
The AT25256B-SSHL-B is a specific model of EEPROM (Electrically Erasable Programmable Read-Only Memory) chip produced by Microchip Technology Inc. It is part of the AT25 series, known for its reliable non-volatile storage capabilities. This particular model offers a storage capacity of 256 Kbits, organized as 32,768 bytes, allowing for efficient data management in embedded systems.
Key features of the AT25256B-SSHL-B include its SPI (Serial Peripheral Interface) compatibility, which provides a simple and fast communication method with microcontrollers. It supports advanced write protection mechanisms and has a high endurance for write/erase cycles, making it suitable for applications requiring frequent data updates.
The chip operates within a wide voltage range and is designed to withstand extensive temperature fluctuations, enhancing its versatility for various industrial, automotive, and consumer electronics applications. Its compact design (typically in an 8-pin SOIC or TSSOP package) allows for easy integration into space-constrained devices, making the AT25256B-SSHL-B a reliable choice for long-term data retention and durability.
Key features of the AT25256B-SSHL-B include its SPI (Serial Peripheral Interface) compatibility, which provides a simple and fast communication method with microcontrollers. It supports advanced write protection mechanisms and has a high endurance for write/erase cycles, making it suitable for applications requiring frequent data updates.
The chip operates within a wide voltage range and is designed to withstand extensive temperature fluctuations, enhancing its versatility for various industrial, automotive, and consumer electronics applications. Its compact design (typically in an 8-pin SOIC or TSSOP package) allows for easy integration into space-constrained devices, making the AT25256B-SSHL-B a reliable choice for long-term data retention and durability.
Equivalent
The AT25256B-SSHL-B is a 256-Kbit SPI EEPROM. Equivalent products include:
1. Microchip 25LC256
2. STMicroelectronics M95256
3. ON Semiconductor CAT25256
4. ROHM BR25H256
5. Cypress FM25V02 (though this is FRAM and not EEPROM)
These alternatives have similar memory capacity and SPI interface but may vary in specifics like voltage range or operating temperature. Always verify compatibility with your application requirements.
1. Microchip 25LC256
2. STMicroelectronics M95256
3. ON Semiconductor CAT25256
4. ROHM BR25H256
5. Cypress FM25V02 (though this is FRAM and not EEPROM)
These alternatives have similar memory capacity and SPI interface but may vary in specifics like voltage range or operating temperature. Always verify compatibility with your application requirements.
Pinout
The AT25256B-SSHL-B is a 256 Kb (32,768 x 8) Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) that uses the SPI (Serial Peripheral Interface) protocol. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a concise description of its pin functions:
1. CS (Chip Select): Activates the device when low.
2. SCK (Serial Clock): Clocks data in and out of the device.
3. SI (Serial Input): Inputs data to the device.
4. SO (Serial Output): Outputs data from the device.
5. WP (Write Protect): Protects against writes to the status register when low.
6. GND: Ground reference for the power supply.
7. VCC: Power supply pin.
8. HOLD: Pauses the serial communication without resetting the serial sequence.
These pins serve to facilitate data transfer, power the device, and provide control over read/write operations and protection features.
1. CS (Chip Select): Activates the device when low.
2. SCK (Serial Clock): Clocks data in and out of the device.
3. SI (Serial Input): Inputs data to the device.
4. SO (Serial Output): Outputs data from the device.
5. WP (Write Protect): Protects against writes to the status register when low.
6. GND: Ground reference for the power supply.
7. VCC: Power supply pin.
8. HOLD: Pauses the serial communication without resetting the serial sequence.
These pins serve to facilitate data transfer, power the device, and provide control over read/write operations and protection features.
Manufacturer
The AT25256B-SSHL-B is manufactured by Microchip Technology Inc. Microchip Technology is a leading semiconductor company that specializes in producing various microcontroller, mixed-signal, analog, and Flash-IP integrated circuits. Founded in 1989, the company is known for providing a broad spectrum of innovative solutions to various industries, including automotive, aerospace, consumer electronics, and telecommunications. Microchip's products are widely used for their reliability, efficiency, and cost-effectiveness in developing embedded systems and electronics applications.
Application
The AT25256B-SSHL-B is a 256-Kbit serial EEPROM, commonly used in applications requiring reliable, non-volatile memory storage. Key application areas include:
1. Consumer Electronics: Used for storing configuration data, settings, and calibration details in devices like TVs, audio systems, and gaming consoles.
2. Industrial Control Systems: Utilized for logging data and storing firmware in PLCs and automation equipment.
3. Automotive: Employed in vehicle infotainment systems and engine control units for parameter storage.
4. Medical Devices: Stores critical data in portable medical instruments and diagnostic equipment.
5. Telecommunications: Used for storing network configurations and settings in communication devices.
Its small form factor and low power consumption make it ideal for embedded systems.
1. Consumer Electronics: Used for storing configuration data, settings, and calibration details in devices like TVs, audio systems, and gaming consoles.
2. Industrial Control Systems: Utilized for logging data and storing firmware in PLCs and automation equipment.
3. Automotive: Employed in vehicle infotainment systems and engine control units for parameter storage.
4. Medical Devices: Stores critical data in portable medical instruments and diagnostic equipment.
5. Telecommunications: Used for storing network configurations and settings in communication devices.
Its small form factor and low power consumption make it ideal for embedded systems.
Package
The AT25256B-SSHL-B is an EEPROM memory IC from Microchip Technology, housed in an 8-lead SOIC (Small Outline Integrated Circuit) package. The "SSHL" indicates the specific package type, while "B" versions typically denote lead-free, RoHS-compliant products. This package is suitable for surface-mount technology (SMT) applications.
