Datasheet

DS1339 I
2
C Serial Real-Time Clock
3 of 20
DC ELECTRICAL CHARACTERISTICS
(V
CC
= MIN to MAX, T
A
= -40°C to +85°C.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Leakage I
LI
(Note 3) 1
µA
I/O Leakage I
LO
(Note 4) 1
µA
Logic 0 Out
V
OL
= 0.4V; V
CC
> V
CC
MIN (-3, -33);
V
CC
≥ 2.0V (-2)
I
OL
(Note 4) 3 mA
Logic 0 Out
V
OL
= 0.2 (V
CC
);
1.8V < V
CC
< 2.0V (DS1339-2)
I
OL
(Note 4) 3 mA
Logic 0 Out
V
OL
= 0.2 (V
CC
);
1.3V < V
CC
< 1.8V (DS1339-2)
I
OL
(Note 4) 250
µA
V
CC
Active Current I
CCA
(Note 5) 450
µA
V
CC
Standby Current (Note 6) I
CCS
-2: V
CC
= 2.2V 60 100
µA
-3: V
CC
= 3.3V 80 150
-33: V
CC
= 5.5V 200
Trickle-Charger Resistor Register
10h = A5h, V
CC
= Typ, V
BACKUP
= 0V
R1 (Note 7) 250
Ω
Trickle-Charger Resistor Register
10h = A6h, V
CC
= Typ, V
BACKUP
= 0V
R2 2000
Ω
Trickle-Charger Resistor Register
10h = A7h, V
CC
= Typ, V
BACKUP
= 0V
R3 4000
Ω
V
BACKUP
Leakage Current I
BKLKG
25 100 nA
DC ELECTRICAL CHARACTERISTICS
(V
CC
= 0V, T
A
= -40°C to +85°C.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V
BACKUP
Current EOSC = 0, SQW Off
I
BKOSC
(Note 8) 400 700 nA
V
BACKUP
Current EOSC = 0, SQW On
I
BKSQW
(Note 8) 600 1000 nA
V
BACKUP
Current EOSC = 1
I
BKDR
10 100 nA