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AT25010B Datasheet(PDF) 1 Page - ATMEL Corporation |
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AT25010B Datasheet(HTML) 1 Page - ATMEL Corporation |
1 / 27 page Features • Serial Peripheral Interface (SPI) Compatible • Supports SPI Modes 0 (0,0) and 3 (1,1) – Data Sheet Describes Mode 0 Operation • Low-voltage and Standard-voltage Operation –V CC = 1.8V to 5.5V • 20 MHz Clock Rate (5V) • 8-byte Page Mode • Block Write Protection – Protect 1/4, 1/2, or Entire Array • Write Protect (WP) Pin and Write Disable Instructions for Both Hardware and Software Data Protection • Self-timed Write Cycle (5 ms max) • High Reliability – Endurance: One Million Write Cycles – Data Retention: 100 Years • Green (Pb/Halogen-free/Rohs Compliant) Packaging Options • Die Sales: Wafer Form, Waffle Pack, Bumped Wafers Description The AT25010B/020B/040B provides 1024/2048/4096 bits of serial electrically eras- able programmable read-only memory (EEPROM) organized as 128/256/512 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential. The AT25010B/020B/040B is available in space saving, JEDEC SOIC, UDFN, TSSOP, XDFN and VFBGA packages. The AT25010B/020B/040B is enabled through the Chip Select pin (CS) and accessed via a three-wire interface consisting of Serial Data Input (SI), Serial Data Output (SO), and Serial Clock (SCK). All programming cycles are completely self-timed, and no separate erase cycle is required before write. Block write protection is enabled by programming the status register with one of four blocks of write protection. Separate Program Enable and Program disable instructions are provided for additional data protection. Hardware data protection is provided via the WP pin to protect against inadvertent write attempts. The HOLD pin may be used to suspend any serial communication without resetting the serial sequence. Table 0-1. Pin Configuration Pin Name Function CS Chip Select SCK Serial Data Clock SI Serial Data Input SO Serial Data Output GND Ground V CC Power Supply WP Write Protect HOLD Suspends Serial Input SPI Serial EEPROM 1K (128x8) 2K (256x8) 4K (512x8) AT25010B AT25020B AT25040B VCC HOLD SCK SI CS SO WP GND 4 3 2 1 5 6 7 8 8-lead UDFN, XDFN Bottom View VCC HOLD SCK SI CS SO WP GND 1 2 3 4 8 7 6 5 8-ball VFBGA Bottom View 1 2 3 4 8 7 6 5 SOIC, TSSOP VCC HOLD SCK SI CS SO WP GND 8707B–SEEPR–3/10 |
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