Automotive Serial EEPROMs

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July 9, 2012

Atmel’s New Serial EEPROM Product Families with Unique Identifiers Simplify Design and Lower Cost of Internet-Connected Products

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Designed for Rugged Automotive Applications

Atmel is a leading supplier of Serial EEPROM devices offering a broad range of products in 1Kb to 256Kb densities for automotive, and up to 2Mb for industrial applications. Our automotive-grade products are ISO/TS16949 certified and supported by full PPAP documentation. We offer ultra-low power and low-voltage products in a full line of 2-wire (I2C), SPI and 3-wire (µWire) interfaces in small-size SOIC and TSSOP packages.

A Broad Range of Automotive Applications

Atmel® Serial EEPROMs are used in a broad range of applications requiring varying densities and standard serial interfaces.

Application	2-wire (I²C)		3-wire (µWire)		SPI
Application	Part Number	Density	Part Number	Density	Part Number	Density
Airbags			93C46D 93C56B 93C66B 93C86A	1K - 16K	25010B to 25256B	1K - 256K
Anti-Lock Brake System	24C01C to 24C04C	1K - 4K		1K - 16K	25040B to 25256B	4K - 256K
Audio	24C08C to 24C64D	8K - 64K		1K - 16K
Dash Board	24C01C to 24C16C	1K - 16K		1K - 16K	25020B to 25128B	2K - 128K
Driver Information System	24C01C to 24C16C	1K - 16K		1K - 16K	25010B to 25160B	1K - 16K
Engine Control				2K - 16K	24040B to 25256B	4K - 256K
Multimedia	24C01C to 24C64D	1K - 64K		1K - 16K	25010B to 25256B	1K - 256K
Telematics/Navigation	24C08C to 24C256C	8K - 256K		1K - 16K	25010B to 25256B	1K - 256K
Tire Pressure	24C01C to 24C16C	1K - 16K		1K - 16K	25010B to 25040B	1K - 4K

Key Features

Operating temperature range from -40°C to 125°C
Extended VCC from 2.5V to 5.5V
High cycling endurance with up to one million write cycles at 25°C and data retention of 100 years
High clock frequencies up to 20 MHz for SPI and 1 MHz for I²C
Write protection (WP) and disable instructions for hardware and software data protection

I2C (2-Wire) Compatible Devices

Benefits	Description
I²C-compatible (two-wire) interface Cascadable up to 8 devices on same bus Up to 1MHz clock frequency 1 million cycle EEPROM endurance at 25°C 100-year EEPROM data retention Extended Vcc, 2.5V to 5.5V -40°C to 125°C Operating temperature range Automotive grade, ISO/TS16949 Certification SOIC, TSSOP packages	The I²C (2-wire) compatible Automotive Serial EEPROM family is available in 1Kb to 256Kb densities. These byte and page writable serial EEPROMs are designed to offer simple, yet flexible data storage for a broad range of automotive application where low-power and low-voltage operation are essential. The I²C compatible devices are available in space-saving 8-lead SOIC and TSSOP packages.
Details The I²C (2-wire) compatible Automotive Serial EEPROM family is available in 1Kb to 256Kb densities. These byte and page writable serial EEPROMs are designed to offer simple, yet flexible data storage for a broad range of automotive application where low-power and low-voltage operation are essential. The I²C compatible devices are available in space-saving 8-lead SOIC and TSSOP packages.

View Parameters

Device

Description

AT24C01B Automotive

1Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM

AT24C01C Automotive

1Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM

AT24C02B Automotive

2Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM

AT24C02C Automotive

2Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM

AT24HC02B Automotive

2Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM with Half Memory Write Protect

AT34C02C Automotive

2Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM with 16-byte Page Write

AT24C04B Automotive

4Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM

AT24C04C Automotive

4Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM

AT24HC04B Automotive

4Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM with Half Memory Write Protect

AT24C08B Automotive

8Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM

AT24C08C Automotive

8Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM

AT24C16C Automotive

16Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM

AT24C32D Automotive

32Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM

AT24C64A Automotive

64Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM

AT24C64B Automotive

64Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM

AT24C128C Automotive

128Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM

AT24C256C Automotive

256Kb I²C-compatible 2-wire Automotive Temperature Serial EEPROM

Microwire (3-Wire) Compatible Devices

Benefits	Description
Microwire (3-wire) compatible interface Up to 2MHz operation Fast 5ms built in erase/write cycle 1 million cycle EEPROM endurance at 25°C 100-year EEPROM data retention Extended Vcc, 2.5V to 5.5V -40°C to 125°C Operating temperature range Automotive grade, ISO/TS16949 Certification SOIC, TSSOP packages	The Microwire (3-wire) compatible Automotive Serial EEPROMs are available in 1Kb to 16Kb densities. These devices offer flexible user selectable x8 or x16 memory organization with software write protection to secure data stability. This family is available in space-saving 8-lead SOIC and TSSOP packages.
Details The Microwire (3-wire) compatible Automotive Serial EEPROMs are available in 1Kb to 16Kb densities. These devices offer flexible user selectable x8 or x16 memory organization with software write protection to secure data stability. This family is available in space-saving 8-lead SOIC and TSSOP packages.

View Parameters

Device

Description

AT93C46D Automotive

1Kb Microwire-compatible 3-wire Automotive Temperature Serial EEPROM

AT93C56B Automotive

2Kb Microwire-compatible 3-wire Automotive Temperature Serial EEPROM

AT93C66B Automotive

4Kb Microwire-compatible 3-wire Automotive Temperature Serial EEPROM

AT93C86A Automotive

16Kb Microwire-compatible 3-wire Automotive Temperature Serial EEPROM

SPI Compatible Devices

Benefits	Description
SPI-compatible interface Up to 20MHz clock frequency Fast 5ms built in erase/write cycle 1 million cycle EEPROM endurance at 25°C 100-year EEPROM data retention Extended Vcc, 2.5V to 5.5V -40°C to 125°C Operating temperature range Automotive grade, ISO/TS16949 Certification SOIC, TSSOP packages	The high-speed SPI-compatible Automotive Serial EEPROM family is available in 1Kb to 256Kb densities. These devices are byte and page writable and optimized for use in a broad range of automotive applications where low-power, low-voltage and high-speed operation are essential. The SPI automotive family is available in space-saving 8-lead SOIC and TSSOP packages.
Details The high-speed SPI-compatible Automotive Serial EEPROM family is available in 1Kb to 256Kb densities. These devices are byte and page writable and optimized for use in a broad range of automotive applications where low-power, low-voltage and high-speed operation are essential. The SPI automotive family is available in space-saving 8-lead SOIC and TSSOP packages.