FM3164-STR Ramtron, FM3164-STR Datasheet - Page 21

• Manufacturer Part Number: FM3164-STR
• Description: case, leaded, supervisor, reflow, soic, supply, process, max, ram, Interface ICs, package, compatible, voltage, memor...
• Manufacturer: Ramtron

Notes
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. V
AC Parameters
All SCL specifications as well as start and stop conditions apply to both read and write operations.
Capacitance
Notes
1
2
Data Retention
Rev. 2.3
Oct. 2006
DC Operating Conditions, continued
Symbol
R
V
V
Symbol
f
t
t
t
t
t
t
t
t
t
t
t
t
t
C
C
Data Retention
Symbol
LOW
HIGH
AA
BUF
HD:STA
SU:STA
HD:DAT
SU:DAT
R
F
SU:STO
DH
SP
SCL
XTAL
IN
IO
PFI
HYS
SCL toggling between V
All inputs at V
V
V
/RST is asserted low when V
The minimum V
Full complete operation. Supervisory circuits, RTC, etc operate to lower voltages as specified.
Includes /RST input detection of external reset condition to trigger driving of /RST signal by FM31xx.
The VBAK trickle charger automatically regulates the maximum voltage on this pin for capacitor backup applications.
This parameter is characterized but not tested.
The crystal attached to the X1/X2 pins must be rated as 6pF.
IN
BAK
BAK
or V
= 3.0V, V
will source current when trickle charge is enabled (VBC bit=1), V
OUT
Parameter
Input Resistance (pulldown)
Power Fail Input Reference Voltage
Power Fail Input (PFI) Hysteresis (Rising)
Parameter
SCL Clock Frequency
Clock Low Period
Clock High Period
SCL Low to SDA Data Out Valid
Bus Free Before New Transmission
Start Condition Hold Time
Start Condition Setup for Repeated
Start
Data In Hold Time
Data In Setup Time
Input Rise Time
Input Fall Time
Stop Condition Setup Time
Data Output Hold
Noise Suppression Time Constant
on SCL, SDA
Input/Output Capacitance
X1, X2 Crystal pin Capacitance
(T
A1-A0 for V
A1-A0 for V
= V
A
(T
(T
SS
= 25 C, f=1.0 MHz, V
DD
A
SS
A
DD
or V
= -40 C to + 85 C, V
= -40 C to + 85 C, V
to V
< 2.4V, oscillator running, CNT1-2 at V
to guarantee the level of /RST remains a valid V
DD,
Parameter
DD
DD
static. Stop command issued.
IN
IN
. Does not apply to A0, A1, PFI, or /RST pins.
-0.3V and V
= V
= V
DD
(from SCL @ VIL)
< V
IL
IH
Parameter
max
min
TP
.
DD
SS
(T
DD
DD
, other inputs V
= 3.0V)
A
= 2.7V to 5.5V)
= 2.7V to 5.5V, C
= -40 C to + 85 C, V
Min
250
4.7
4.0
4.7
4.0
4.7
4.0
0
0
0
SS
BAK
or V
L
Max
1000
100
300
.
50
= 100 pF unless otherwise specified)
DD
3
1.175
Min
-0.3V.
20
DD
1
OL
Min
10
= 2.7V to 5.5V unless otherwise specified)
level.
Min
100
1.3
0.6
1.3
0.6
0.6
0.6
DD
0
0
0
> V
Typ
12
-
BAK
Typ
1.20
Max
400
300
300
0.9
50
-
, and V
Units
Years
Min
0.25
0.25
0.25
100
BAK
0.6
0.4
0.5
0
0
0
Max
8
-
1.225
< V
Max
100
BAK
1000
Max
0.55
300
100
50
Notes
max.
FM3104/16/64/256
Units
pF
pF
Units
Units
M
K
mV
kHz
V
ns
ns
ns
ns
ns
ns
s
s
s
s
s
s
s
Page 21 of 25
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Notes
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