DS1339 Maxim, DS1339 Datasheet - Page 3

• Manufacturer Part Number: DS1339
• Description: The DS1339 serial real-time clock (RTC) is a low-power clock/date device with two programmable time-of-day alarms and a programmable square-wave output
• Manufacturer: Maxim

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