Atmel will announce the world’s most innovative 2-pin Single-Wire 1Kbit Serial EEPROM products. These extraordinary memory devices are a true 2-pin solution requiring only a data pin and a ground pin to operate. The Atmel® AT21CS01 and AT21CS11 serial EEPROMs are “self-powered” over a single data pin using a novel parasitic power concept, making them ideal for any application that has limited pins available.
The two variants support the different voltage requirements. The AT21CS01 targets low-voltage applications operating at 1.7V – 3.6V, including IoT wearables, smart fitness and smart healthcare applications to name a few. For applications that require a higher voltage range—e.g., Li-Ion/Polymer batteries—the AT21CS11 will support a 2.7V – 4.5V operating range and is the ideal product to meet IEEE 1725 specifications for electronic identification of battery packs.
Each AT21CS01/11 product has a unique slave address, allowing up to eight devices to be connected and independently accessed by the same Single-Wire Master. This feature makes it very easy to add more memory to applications with only minimal support circuitry.
The AT21CS01/11 products offer 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. The AT21CS01/11 devices are logically segmented into 256-bit zones and each zone is independently able to be permanently write-protected, creating a versatile product for customers.
With a plug-and-play 64-bit unique Serial Number included in every device, these products also provide an ideal solution to implement simple product identification. And with ESD tolerance to IEC 61000-4-2, the single data pin is capable of being directly accessed from outside the application. Additional application examples include analog sensor calibration and storage data, ink and toner print cartridge identification, cabling requiring electronic identification, and management of after-market consumables.
Product Highlights |
Benefits to Customers |
True 2-pin Device
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Ultra-low Standby and Active Current
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Follows I2C Protocol
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Highest Level of ESD rating
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Innovative Memory Architecture
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Security Register
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Available in 3-lead SOT23, 8-lead SOIC, and 4-ball WLCSP:
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