5.2

4.7

4.2

3.7

3.2

2.7

2.2

100

150

200

250

300

50

1.7

10

20

30

40

50

60

70

80

90

100

0

5.2

4.7

4.2

3.7

3.2

2.7

2.2

1.7

Typical Operating Characteristics

2-Wire Digital Input RTC with Alarm

4

_____________________________________________________________________

SDA

SCL

REPEATED

START

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