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AT24CS08-MAHM-T Datasheet(PDF) 2 Page - ATMEL Corporation |
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AT24CS08-MAHM-T Datasheet(HTML) 2 Page - ATMEL Corporation |
2 / 24 page 2 Atmel AT24CS04/08 [PRELIMINARY DATASHEET] 8766B–SEEPR–8/12 1. Description The Atmel® AT24CS04 and AT24CS08 provides 4096/8192 bits of Serial Electrically Erasable and Programmable Read-only Memory (EEPROM) organized as 512/1024 words of eight bits each. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential. The AT24CS04/08 is available in space-saving, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-pad UDFN and 5-lead SOT23 packages and is accessed via a 2-wire serial interface. In addition, both devices fully operate from 1.7V to 5.5V VCC. The AT24CS04/08 provides the additional feature of a factory programmed, guaranteed unique 128-bit serial number, while maintaining all of the traditional features available in the 4-Kbit or 8-Kbit Serial EEPROM. The time consuming step of performing and ensuring true serialization of product on a manufacturing line can be removed from the production flow by employing the CS Series Serial EEPROM. The 128-bit serial number is programmed and permanently locked from future writing during the Atmel production process. Further, this 128-bit location does not consume any of the user read/write area of the 4-Kbit or 8-Kbit Serial EEPROM. The uniqueness of the serial number is guaranteed across the entire CS Series of Serial EEPROMs, regardless of the size of the memory array or the type of interface protocol. This means that as an application's needs for memory size or interface protocol evolve in future generations, any previously deployed serial number from any Atmel CS Series Serial EEPROM part will remain valid. 2. Pin Descriptions and Pinout Figure 2-1. Pin Configuration Note: For use of 5-lead SOT23, the software A2, A1, and A0 bits in the device address word must be set to zero to properly communicate with the device. Pin Name Function NC No Connect A1 Address Input (4K only) A2 Address Input SDA Serial Data SCL Serial Clock Input WP Write Protect GND Ground VCC Power Supply 1 2 3 4 8 7 6 5 NC A1/NC A2 GND VCC WP SCL SDA 8-lead SOIC 1 2 3 5 4 SCL GND SDA WP VCC 5-lead SOT23 1 2 3 4 8 7 6 5 VCC WP SCL SDA NC A1/NC A2 GND 8-pad UDFN Bottom View 1 2 3 4 8 7 6 5 NC A1/NC A2 GND VCC WP SCL SDA 8-lead TSSOP |
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