FM25CL64B Ramtron, FM25CL64B Datasheet - Page 10

• Manufacturer Part Number: FM25CL64B
• Description: 3V F-RAM Memory
• Manufacturer: Ramtron

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AC Parameters (T
Notes
1.
2.
3.
Capacitance (T
Notes
1.
AC Test Conditions
Input Pulse Levels
Input rise and fall times
Input and output timing levels
Output Load Capacitance
Data Retention
Rev. 1.2
Feb. 2011
Symbol
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Symbol
C
C
Symbol
T
CH
CL
CSU
CSH
OD
ODV
OH
D
R
F
SU
H
HS
HH
HZ
LZ
CK
O
DR
I
t
Characterized but not 100% tested in production.
Rise and fall times measured between 10% and 90% of waveform.
This parameter is periodically sampled and not 100% tested.
CH
+ t
CL
= 1/f
Parameter
Output Capacitance (SO)
Input Capacitance
Parameter
SCK Clock Frequency
Clock High Time
Clock Low Time
Chip Select Setup
Chip Select Hold
Output Disable Time
Output Data Valid Time
Output Hold Time
Deselect Time
Data In Rise Time
Data In Fall Time
Data Setup Time
Data Hold Time
/HOLD Setup Time
/HOLD Hold Time
/HOLD Low to Hi-Z
/HOLD High to Data Active
A
CK
Parameter
= 25° C, f=1.0 MHz, V
.
@
@
@
A
= -40° C to + 85° C, C
+85ºC
+80ºC
+75ºC
10% and 90% of V
5 ns
0.5 V
30 pF
DD
DD
L
= 3.3V)
= 30pF, V
DD
DD
= 2.7V to 3.65V unless otherwise specified)
Min
10
19
38
Min
Min
22
22
10
10
60
10
10
0
0
5
5
-
-
FM25CL64B - 64Kb 3V SPI F-RAM
Max
-
-
-
Max
Max
50
20
20
20
50
20
20
8
6
Units
Years
Years
Years
Units
MHz
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
pF
pF
Page 10 of 14
Notes
Notes
Notes
2,3
2,3
1
1
2
2
2
1
1
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