FM25CL64 - Automotive Temp.
CS
0
SCK
op-code
SI
SO
0
0
0
0
0
0
1
0
X
MSB
X
X
13-bit Address
12 11 10
Data
5 4
1
2
3
4
5
6
7
0
1
2
3
4
5
3
4
5
6
7
0
1
2
3
4
5
6
7
4
3
2
1
0
7
6
3
2
1
0
LSB
LSB MSB
Figure 9. Memory Write
CS
0
SCK
op-code
SI
0
0
0
0
0
0
1
1
X
MSB
SO
X
13-bit Address
X 12 11 10
4
3
2
1
0
LSB MSB
7
6
5
Data
4 3
2
1
LSB
0
1
2
3
4
5
6
7
0
1
2
3
4
5
3
4
5
6
7
0
1
2
3
4
5
6
7
Figure 10. Memory Read
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
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.
Rev. 3.0
May 2007
Page 8 of 13
RAMTRON [ RAMTRON INTERNATIONAL CORPORATION ]
