Typical operating characteristics – Rainbow Electronics DS1375 User Manual
Page 4
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I
CCS
vs. V
CC
DS1375 toc01
V
CC
(V)
SUPPlY CURRENT (nA)
5.2
4.7
4.2
3.7
3.2
2.7
2.2
100
150
200
250
300
50
1.7
I
CCA
vs. V
CC
SUPPLY CURRENT (
µ
A)
10
20
30
40
50
60
70
80
90
100
0
DS1375 toc02
V
CC
(V)
5.2
4.7
4.2
3.7
3.2
2.7
2.2
1.7
Typical Operating Characteristics
(V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted.)
DS1375
2-Wire Digital Input RTC with Alarm
4
_____________________________________________________________________
SDA
SCL
t
HD:STA
t
LOW
t
HIGH
t
R
t
F
t
BUF
t
HD:DAT
t
SU:DAT
REPEATED
START
t
SU:STA
t
HD:STA
t
SU:STO
t
SP
STOP
START
Figure 1. Data Transfer on 2-Wire Serial Bus
SERIAL BUS
INTERFACE AND
ADDRESS
REGISTER
DIVIDER
CONTROL
LOGIC
CLK
SCL
SDA
8192Hz/4096Hz/1024Hz/1Hz
MUX/
BUFFER
SQW/INT
USER BUFFER
(7 BYTES)
CLOCK AND
CALENDAR
REGISTERS
ALARM AND
CONTROL
REGISTERS
SRAM
1Hz
DS1375
Figure 2. Functional Diagram
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