Ds1374 i, Dc electrical characteristics – Rainbow Electronics DS1374 User Manual
Page 3
DS1374
I
2
C, 32-Bit Binary Counter Watchdog RTC with
Trickle Charger and Reset Input/Output
_____________________________________________________________________
3
DC ELECTRICAL CHARACTERISTICS
(V
CC
= V
CC MIN
to V
CC MAX
, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
R1
(Note 5)
250
R2
(Note 6)
2000
Trickle-Charge Current-Limiting
Resistors
R3
(Note 7)
4000
Ω
Input Leakage
I
LI
(Note 8)
-1
+1
I/O Leakage
I
LO
(Note 9)
-1
+1
RST Pin I/O Leakage
I
LORST
(Note 10)
-200
+1
µA
SDA Logic 0 Output (V
OL
= 0.4V)
I
OLSDA
3.0
mA
V
CC
> 2V; V
OL
= 0.4V
3.0
1.71V < V
CC
< 2V; V
OL
= 0.2 V
CC
3.0
mA
RST, SQW, and INT Logic 0
Outputs (Note 11)
I
OL1
1.3V < V
CC
< 1.71V; V
OL
= 0.2 V
CC
250
µA
DS1374-18
75
150
DS1374-3
110
200
Active Supply Current
(Notes 11, 12)
I
CCA
DS1374-33
180
300
µA
DS1374-18
60
100
DS1374-3
80
125
Standby Current (Notes 11, 13)
I
CCS
DS1374-33
115
175
µA
V
BACKUP
Leakage Current
(V
BACKUP
= 3.7V)
I
BACKUPLKG
100
nA
DC ELECTRICAL CHARACTERISTICS
(V
CC
= 0V, V
BACKUP
= 3.7V, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MAX
TYP
MAX
UNITS
V
BACKUP
Current (OSC ON);
SQW OFF
I
BKOSC1
(Note 14)
400
700
nA
V
BACKUP
Current (OSC ON);
SQW ON (32kHz)
I
BKOSC2
(Notes 14, 15)
600
1000
nA
V
BACKUP
Data-Retention Current
(OSC OFF)
I
BACKUPDR
25
100
nA