
Electrical Specifications
Absolute Maximum Ratings
Symbol
V
DD
V
IN
FM3204/16/64/256
Rev 2.1
Dec. 2004
Page 16 of 20
Description
Ratings
-1.0V to +7.0V
-1.0V to +7.0V * and
V
IN
≤
V
DD
+1.0V **
-1.0V to +4.5V
-55
°
C to + 125
°
C
300
°
C
Power Supply Voltage with respect to V
SS
Voltage on any signal pin with respect to V
SS
V
BAK
T
STG
T
LEAD
Backup Supply Voltage
Storage Temperature
Lead Temperature (Soldering, 10 seconds)
* PFI input voltage must not exceed 4.5V.
** The “V
IN
< V
DD
+1.0V” restriction does not apply to the SCL and SDA inputs which do not employ a diode to V
DD
.
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating
only, and the functional operation of the device at these or any other conditions above those listed in the operational section of this
specification is not implied. Exposure to absolute maximum ratings conditions for extended periods may affect device reliability.
DC Operating Conditions
(
T
A
= -40
°
C to + 85
°
C, V
DD
= 2.7V to 5.5V unless otherwise specified)
Symbol
Parameter
V
DD
Main Power Supply
I
DD
V
DD
Supply Current
@ SCL = 100 kHz
@ SCL = 400 kHz
@ SCL = 1 MHz
I
SB
Standby Current
For V
DD
< 5.5V
For V
DD
< 3.6V
V
BAK
Backup Supply Voltage
I
BAK
Backup Supply Current
I
BAKTC
Trickle Charge Current
V
TP0
V
DD
Trip Point Voltage, VTP(1:0) = 00b
V
TP1
V
DD
Trip Point Voltage, VTP(1:0) = 01b
V
TP2
V
DD
Trip Point Voltage, VTP(1:0) = 10b
V
TP3
V
DD
Trip Point Voltage, VTP(1:0) = 11b
V
RST
V
DD
for valid /RST @ I
OL
= 80
μ
A at V
OL
V
BAK
> V
BAK
min
V
BAK
< V
BAK
min
I
LI
Input Leakage Current
I
LO
Output Leakage Current
V
IL
Input Low Voltage
All inputs except those listed below
CNT1-2 battery backed (V
DD
< 2.5V)
CNT1-2 (V
DD
> 2.5V)
V
IH
Input High Voltage
All inputs except those listed below
PFI (comparator input)
CNT1-2 battery backed (V
DD
< 2.5V)
CNT1-2 V
DD
> 2.5V
V
OL
Output Low Voltage (I
OL
= 3 mA)
V
OH
Output High Voltage (I
OH
= -2 mA)
R
RST
Pull-up resistance for /RST inactive
R
IN
Input Resistance (pulldown)
A1-A0 for V
IN
= V
IL
max
A1-A0 for V
IN
= V
IH
min
V
PFI
Power Fail Input Reference Voltage
V
HYS
Power Fail Input (PFI) Hysteresis (Rising)
Min
2.7
Typ
Max
5.5
500
900
1500
150
120
3.75
1
25
2.70
3.00
4.00
4.50
Units
V
μ
A
μ
A
μ
A
μ
A
μ
A
V
μ
A
μ
A
V
V
V
V
V
V
μ
A
μ
A
V
V
V
V
V
V
V
V
V
K
K
M
V
mV
Notes
7
1
2
2.0
5
2.55
2.85
3.80
4.25
0
1.6
-0.3
-0.3
-0.3
0.7 V
DD
-
V
BAK
– 0.5
0.7 V
DD
-
2.4
50
20
1
1.175
3.0
2.6
2.9
3.9
4.4
9
4
10
5
5
5
5
6
1
1
3
3
8
0.3 V
DD
0.5
0.8
V
DD
+ 0.3
3.75
V
BAK
+ 0.3
V
DD
+ 0.3
0.4
-
400
1.20
-
1.225
100