M25P20 Serial Flash Embedded Memory
Functional Description
Functional Description
The M25P20 is a 2Mb (256Kb x 8) serial Flash memory device with advanced write pro-
tection mechanisms accessed by a high speed SPI-compatible bus. The device supports
high-performance commands for clock frequency up to 75MHz.
Note:
75 MHz operation is available only on the V
CC
range 2.7V–3.6V.
The memory can be programmed 1 to 256 bytes at a time, using the PAGE PROGRAM
command.
The memory is organized as 4 sectors, each containing 256 pages. Each page is 256
bytes wide. Thus, the whole memory can be viewed as consisting of 1024 pages, or
262,144 bytes.
The whole memory can be erased using the BULK ERASE command, or a sector at a
time, using the SECTOR ERASE command.
In order to meet environmental requirements, these devices RoHS-compliant.
Figure 1: Logic Diagram
VCC
DQ0
C
S#
W#
HOLD#
DQ1
VSS
PDF: 09005aef8456656e
m25p20.pdf - Rev. A 2/13 EN
5
Micron Technology, Inc. reserves the right to change products or specifications without notice.
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2012 Micron Technology, Inc. All rights reserved.
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