DS1338 Maxim, DS1338 Datasheet - Page 6

• Manufacturer Part Number: DS1338
• Description: The DS1338 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM
• Manufacturer: Maxim

TYPICAL OPERATING CHARACTERISTICS
1250
1200
1150
1100
1050
1000
1000
950
900
850
800
750
700
650
600
550
950
900
850
800
750
700
650
600
1.3 1.8 2.3 2.8 3.3
-40
-20
I
SQWE=1
BAT
vs. Temperature
TEMPERATURE (°C)
I
0
BAT
V
(
SQWE = 1)
V
BAT
vs. V
I
BAT
BAT OSC2
= 3.0V
20
(V)
BAT
3.8 4.3 4.8 5.3
40
SQWE=0
(SQWE = 0)
I
BAT OSC
RS1=RS0=1
60
1
V
CC
=0V
80
V
CC
=0V
6 of 16
250
225
200
175
150
125
100
75
50
32768.5
32768.4
32768.3
32768.2
32768.1
32768.0
1.8
Oscillator Frequency vs. Supply Voltage
1.3
2.3
1.8
2.8
Oscillator Supply Voltage (V)
2.3
I
CC
3.3
vs. V
V
2.8
CC
DS1338 I
CC
(V)
3.8
3.3
4.3
3.8
SCL=400kHz
SCL=SDA=0Hz
4.8
4.3
2
C RTC with 56-Byte NV RAM
4.8
5.3