FM25CL64 - Automotive Temp.
CS
0
1
2
3
4
5
6
7
0
1
2
3
4
5
3
4
5
6
7
0
1
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7
SCK
op-code
13-bit Address
12 11 10
Data
X
X
X
4
3
2
1
0
7
6
5
4
3
2
1
0
SI
0
0
0
0
0
0
1
0
MSB
LSB MSB
LSB
SO
Figure 9. Memory Write
CS
0
1
2
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5
6
7
0
1
2
3
4
5
3
4
5
6
7
0
1
2
3
4
5
6
7
SCK
SI
op-code
13-bit Address
12 11 10
X
X
X
4
3
2
1
0
0
0
0
0
0
0
1
1
MSB
LSB MSB
7
LSB
0
Data
SO
6
5
4
3
2
1
Figure 10. Memory Read
subjected to all three of the following conditions: 17
years at an average temperature of 55°C and 9000
hours at a temperature of 125°C.
Data Retention
The FM25CL64 automotive grade device operates up
to +125°C. Data retention time is a function of
temperature, and is shorter as temperature increases.
Data retention is guaranteed even after the device is
Rev. 3.0
May 2007
Page 8 of 13
RAMTRON [ RAMTRON INTERNATIONAL CORPORATION ]
