Atmel is a leading supplier of Serial EEPROM devices and has shipped over 12 billion devices in the past decade. Because of the ability to alter single bytes of data, Serial EEPROM devices are used to store personal preference and configuration data in a wide spectrum of consumer, automotive, telecommunication, medical, industrial, and PC applications. Atmel offers Serial EEPROM devices in I2C, Microwire and SPI compatible protocols. The devices come in a number of industry-standard package types including space saving DFN, VFBGA, SOT23, and WLCSP packages. Atmel Serial EEPROM devices feature low pin count and are optimized for use in automotive and industrial temperature applications where low-power and low-voltage operation are essential.
| Device Family |
Summary Benefit |
Applications |
Technologies |
Key Parameters |
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I2C compatible
Cascadable up to 8 devices on same bus
Global write protection
Byte/Page writable
Simplest protocol
High-endurance and high-reliability |
Data storage in applications such as portable consumer products, HDCP, Gaming, Cameras, DIMMs, LCD Monitors, LCD TVs and Monitors, LED TVs and Monitors, Wireless LAN, Hearing Aids, Bluetooth, Energy meters, etc |
Low voltage operation
Hardware write protection
Automotive Grade available |
1-kbit to 1-Mbit
Up to 1MHz operation
As low as 1.7V operation
Fast 5ms built in erase/write cycle
8-lead SOIC and UDFN
VFBGA and WLCSP options |
I2C (2-wire) compatible byte and page writable Serial EEPROMs designed to provide simple, yet flexible data storage for the industry’s most popular microcontroller, microprocessor, and SoC solutions. Devices have ultra high write endurance capabilities allowing for greater than 1 million write cycles to each and every memory location to meet the needs of today's high write endurance applications.
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SPI compatible
Utilizing individual Chip Selects, multiple devices can reside on the same bus
Global write protection
Byte/Page writable
More Robust protocol
High-endurance and high-reliability |
Data storage in applications such as Mobile Electronics, Wireless LAN, Motherboards and Computer Peripherals, White Goods, Safety and Engine Control Units, Industrial Equipment, etc. |
Low voltage operation
Hardware/software array write protection
Automotive Grade Available |
1-Kbit to 1-Mbit
Up to 20MHz operation
As low as 1.7V operation
Fast 5ms built in erase/write cycle
8-lead SOIC and UDFN
VFBGA and WLCSP options |
Industry standard SPI -compatible byte and page writable Serial EEPROMs with advanced hardware and software write protection schemes with operating voltages as low as 1.7V. Devices have ultra high write endurance capabilities allowing for greater than 1 million write cycles to each and every memory location to meet the needs of today’s high write endurance applications.
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Microwire compatible
User selectable memory architecture
Software Write Protection
High-endurance and high-reliability |
Data storage in applications such as portable consumer products ,Camera, Gaming, LCD TV, Motherboards, White Goods, Airbags, Security, DECT/Cordless Phones, etc. |
Low voltage operation
8-bit or 16-bit word size
Automotive Grade Available |
1-Kbit to 16-Kbit
Up to 2MHz operation
As low as 1.7V operation
Fast 5ms built in erase/write cycle
8-lead SOIC and TSSOP
VFBGA and WLCSP options |
Microwire (3-wire) compatible Serial EEPROMs with flexible user selectable x8 or x16 memory organization with software write protection to secure data stability. Devices have ultra high write endurance capabilities allowing for greater than 1 million write cycles to each and every memory location to meet the needs of today’s high write endurance applications.
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I2C, Microwire and SPI compatible
Automotive temperature grade, ISO/TS16949 Certification |
Automotive subsystems including:
Airbags, Anti-Lock Brake System, Audio Dash Board, Driver Information System Engine Control, Multimedia, Telematics/Navigation, Tire Pressure |
Byte and page writable
Flexible data storage
Low-power and low-voltage
Memory array write protection |
1Kb to 256Kb
Up to 20MHz operation with SPI products
Extended Vcc range from 2.5V to 5.5V
-40°C to 125°C operating temperature range
8-lead SOIC and TSSOP package options
User selectable x8 or x16 memory organization with software write protection on Microwire-compatible devices |
We offer a complete line of automotive temperature grade Serial EEPROMs supporting I2C, SPI and Microwire protocols. These products are ideal for high-speed designs in robust and noisy environments.
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Provides unique 48-bit or 64-bit MAC/EUI addresses Provides unique 128-bit serial numbers Lowers overall costs and overhead Simplifies design No loss of user EEPROM memory space I2C-compatible |
Network connected applications requiring serialization of products and / or MAC / EUI address values such as consumer, gaming, TV’s, industrial, white goods, medical, metering communications, and lighting |
Low voltage operation Flexible hardware and software write protection Industrial-grade products |
48-bit or 64-bit MAC / EUI addresses supported 128-bit unique serial number 1Kb to 8Kb user serial EEPROM memory Wide Vcc range, 1.7V to 5.5V Flexible package options: SOIC, DFN, SOT23, TSSOP |
Atmel's I2C-compatible (two-wire) family of serial EEPROMs is designed to provide flexible data storage for the industry’s most popular applications. The Atmel® AT24MAC series provides users with unique, pre-programmed 48-bit or 64-bit IEEE-defined MAC/EUI addresses for use in any wired or wireless “connected” or networked application. The AT24CS series comes pre-programmed with a guaranteed unique 128-bit serial number that can be used to give any application an independent and totally unique ID.
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