EEPROM serial

The Microchip AT25M02 provides 2,097,152 bits of Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) organized as 262,144 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation is essential. The device is available in space saving 8-lead JEDEC SOIC and 8-ball Thin WLCSP packages. In addition, the device operates from 1.7V to 5.5V. The AT25M02 is enabled through the Chip Select pin (CS) and accessed via a 3-wire interface consisting of Serial Data Input (SI), Serial Data Output (SO), and Serial Clock (SCK). All programming cycles are completely self-timed and a separate erase cycle is not required before writing to the device.

• Low-voltage and Standard-voltage Operation Available
  • 1.7V (VCC = 1.7V to 5.5V)
  • 2.5V (VCC = 2.5V to 5.5V)
• Serial Peripheral Interface (SPI) Compatible Interface
• Supports SPI Modes 0 (0,0) and 3 (1,1)
• High Speed Operation
  • 5MHClock Rate from 1.7V to 5.5V
• 256-byte Page Write Mode Support
  • Partial Page Writes Allowed
  • Byte Write Operation Supported
• Self-timed Write Cycle
  • All Write Operations Complete Within 10ms Max
• Block Write Protection
  • Ability to Protect the Upper Quarter, Upper Half, or the Entire Memory Array
• Multiple Write Protection Methods
  • Write Protect (WP) Pin and Write Disable instructions for Both Hardware and Software Data Protection
• High Reliability
  • Endurance: 1,000,000 Write Cycles
  • Data Retention: 40 Years
• Green Package Options (Lead-free/Halide-free/RoHS Compliant)
  • 8-lead JEDEC SOIC and 8-ball Thin WLCSP
• Die Sale Options
  • Wafer form, Waffle Pack, and Bumped Die Available