DS1339 I C Serial Real-Time Clock
2
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= MIN to MAX, T
A
= -40°C to +85°C.) (Note 1)
PARAMETER
Trickle-Charger Resistor Register
10h = A5h, V
CC
= Typ, V
BACKUP
= 0V
Trickle-Charger Resistor Register
10h = A6h, V
CC
= Typ, V
BACKUP
= 0V
Trickle-Charger Resistor Register
10h = A7h, V
CC
= Typ, V
BACKUP
= 0V
V
BACKUP
Leakage Current
SYMBOL
R1
R2
R3
I
BKLKG
CONDITIONS
MIN
TYP
250
2000
4000
25
100
MAX
UNITS
W
W
W
nA
DC ELECTRICAL CHARACTERISTICS
(V
CC
= 0V, T
A
= -40°C to +85°C.)
(Note 1)
PARAMETER
V
BACKUP
Current
EOSC
= 0, SQW Off
V
BACKUP
Current
EOSC
= 0, SQW On
V
BACKUP
Current
EOSC
= 1
SYMBOL
I
BKOSC
I
BKSQW
I
BKDR
CONDITIONS
(Note 6)
(Note 6)
(Note 6)
MIN
TYP
400
600
10
MAX
700
1000
100
UNITS
nA
nA
nA
3 of 18
DALLAS [ DALLAS SEMICONDUCTOR ]
