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DS28DG02 - 2kb SPI EEPROM

Description

The DS28DG02 combines 2Kb (256 x 8) EEPROM with 12 PIO lines, a real-time clock (RTC) and calendar with alarm function, a CPU reset monitor, a battery monitor, and a watchdog.

Communication with the device is accomplished with an industrystandard SPI™ interface.

Features

  • 2Kb (256 x 8) EEPROM Organized in Four 64-Byte Blocks.
  • Single Byte and Up to 16-Byte EEPROM Write Sequences.
  • EEPROM Write-Protect Control Pin Protects 1, 2, or All 4 Blocks.
  • Endurance 200k Cycles per Page at +25°C; 10ms (max) EEPROM Write Cycle.
  • SPI Serial Interface Supporting Modes (0,0) and (1,1) at Up to 2MHz Clock Frequency.
  • 12 PIO Lines with LED Drive Capability.
  • Each PIO is Configured to Input or Output, Open-Drain/Push-Pull on Startup by Stored Value.

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Datasheet Details

Part number DS28DG02
Manufacturer Dallas Semiconductor
File Size 345.54 KB
Description 2kb SPI EEPROM
Datasheet download datasheet DS28DG02 Datasheet

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Full PDF Text Transcription

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11/09 EV KIT AVAILABLE www.maxim-ic.com DS28DG02 2Kb SPI EEPROM with PIO, RTC, Reset, Battery Monitor, and Watchdog GENERAL DESCRIPTION The DS28DG02 combines 2Kb (256 x 8) EEPROM with 12 PIO lines, a real-time clock (RTC) and calendar with alarm function, a CPU reset monitor, a battery monitor, and a watchdog. Communication with the device is accomplished with an industrystandard SPI™ interface. The user EEPROM is organized as four blocks of 64 bytes each with single-byte and up to 16-byte page write capability. Additional registers provide access to PIOs and to setup functions. Individual PIO lines can be configured as inputs or outputs. The power-on state of PIOs programmed as outputs is stored in nonvolatile (NV) memory.
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