AT25M01_14 Datasheet, PDF (1/21 Pages) ATMEL Corporation – SPI Serial EEPROM

Atmel 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
 V_CC = 1.7V to 5.5V
 High frequency operation
 20MHz clock rate capable from 4.5V to 5.5V V_CC
 10MHz clock rate capable from 2.5V to 5.5V V_CC
 5MHz clock rate capable from 1.7V to 5.5V V_CC
 256-byte Page Mode and Byte Write operation supported
 Block Write protection
 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
 Endurance: 1,000,000 write cycles
 Data retention: 100 years
 Green package options (Pb/Halide-free/RoHS compliant)
 8-lead JEDEC SOIC, 8-lead EIAJ SOIC, and 8-ball WLCSP
 Die sales options: wafer form, waffle pack and bumped die
Description
The Atmel^® AT25M01 provides 1,048,576 bits of Serial Electrically Erasable
Programmable Read-Only Memory (EEPROM) organized as 131,072 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 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–8824B–SEEPROM–AT25M01–Datasheet–032013