AT25M01
SPI Serial EEPROM
1-Mbit (131,072 x 8)
DATASHEET
Features
Serial Peripheral Interface (SPI) Compatible
Supports SPI Modes 0 (0,0) and 3 (1,1)
Datasheet Describes Mode 0 Operation
Low-voltage Operation
High Frequency Operation
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VCC = 1.7V to 5.5V
20MHz Clock Rate Capable from 4.5V to 5.5V VCC
10MHz Clock Rate Capable from 2.5V to 5.5V VCC
5MHz Clock Rate Capable from 1.7V to 5.5V VCC
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256-byte Page Mode and Byte Write Operation Supported
Block Write Protection
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Protect ¼, ½, or Entire Array
Write Protect (WP) Pin and Write Disable Instructions for
Both Hardware and Software Data Protection
Self-timed Write Cycle (5ms max)
High-reliability
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Endurance: 1,000,000 Write Cycles
Data Retention: 100 Years
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Green Package Options (Pb/Halide-free/RoHS Compliant)
Die Sales Options: Wafer Form, Waffle Pack, and Bumped Die
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8-lead JEDEC SOIC, 8-lead EIAJ SOIC, and 8-ball WLCSP
Description
The Atmel® AT25M01 provides 1,048,576 bits of Serial Electrically Erasable
Programmable Read-Only Memory (EEPROM) organized as 131,072 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 AT25M01 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 no
separate Erase cycle is required before Write.
Block Write protection is enabled by programming the status register with top ¼,
top ½ or entire array 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
to the status register. The HOLD pin may be used to suspend any serial
communication without resetting the serial sequence.
Atmel-8824E-SEEPROM-AT25M01-Datasheet_052016
