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STMicroelectronics Electronic Components Datasheet

M25P20 Datasheet

2 Mbit/ Low Voltage/ Serial Flash Memory With 25 MHz SPI Bus Interface

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M25P20
2 Mbit, Low Voltage, Serial Flash Memory
With 25 MHz SPI Bus Interface
FEATURES SUMMARY
s 2 Mbit of Flash Memory
s Page Program (up to 256 Bytes) in 1.5ms
(typical)
s Sector Erase (512 Kbit) in 2 s (typical)
s Bulk Erase (2 Mbit) in 3 s (typical)
s 2.7 V to 3.6 V Single Supply Voltage
s SPI Bus Compatible Serial Interface
s 25 MHz Clock Rate (maximum)
s Deep Power-down Mode 1 ยตA (typical)
s Electronic Signature (11h)
s More than 100,000 Erase/Program Cycles per
Sector
s More than 20 Year Data Retention
Figure 1. Packages
8
1
SO8 (MN)
150 mil width
VFQFPN8 (MP)
(MLP8)
December 2002
1/34


STMicroelectronics Electronic Components Datasheet

M25P20 Datasheet

2 Mbit/ Low Voltage/ Serial Flash Memory With 25 MHz SPI Bus Interface

No Preview Available !

M25P20
SUMMARY DESCRIPTION
The M25P20 is a 2 Mbit (256K x 8) Serial Flash
Memory, with advanced write protection mecha-
nisms, accessed by a high speed SPI-compatible
bus.
The memory can be programmed 1 to 256 bytes at
a time, using the Page Program instruction.
The memory is organized as 4 sectors, each con-
taining 256 pages. Each page is 256 bytes wide.
Thus, the whole memory can be viewed as con-
sisting of 1024 pages, or 262,144 bytes.
The whole memory can be erased using the Bulk
Erase instruction, or a sector at a time, using the
Sector Erase instruction.
Figure 2. Logic Diagram
VCC
Figure 3. SO and VFQFPN Connections
M25P20
S1
Q2
8 VCC
7 HOLD
W3
6C
VSS 4
5D
AI04081B
D
C
S
W
HOLD
M25P20
Q
Note: 1. See page 30 (onwards) for package dimensions, and how
to identify pin-1.
VSS
Table 1. Signal Names
C Serial Clock
D Serial Data Input
Q Serial Data Output
S Chip Select
W Write Protect
HOLD
Hold
VCC Supply Voltage
VSS Ground
AI04080
2/34


Part Number M25P20
Description 2 Mbit/ Low Voltage/ Serial Flash Memory With 25 MHz SPI Bus Interface
Maker STMicroelectronics
Total Page 30 Pages
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