Rainbow-electronics DS1375 Manuale Utente Scaricare il pdf (Pagina 4)

CCS

vs. V

DS1375 toc01

(V)

SUPPlY CURRENT (nA)

5.24.74.23.73.22.72.2

100

150

200

250

300

1.7

CCA

vs. V

SUPPLY CURRENT (µA)

100

DS1375 toc02

(V)

5.24.74.23.73.22.72.21.7

Typical Operating Characteristics

= +3.3V, T

= +25°C, unless otherwise noted.)

DS1375

2-Wire Digital Input RTC with Alarm

4 _____________________________________________________________________

SDA

SCL

HD:STA

LOW

HIGH

BUF

HD:DAT

SU:DAT

REPEATED

START

SU:STA

HD:STA

SU:STO

STOP START

Figure 1. Data Transfer on 2-Wire Serial Bus

SERIAL BUS

INTERFACE AND

ADDRESS

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

1 2 3 4 5 6 7 8 9 10 11

Rev 0; 4/03 1
ABSOLUTE MAXIMUM RATINGS 2
AC ELECTRICAL CHARACTERISTICS 3
DS1375 toc01 4
DS1375 toc02 4
Pin Description 5
Detailed Description 5
Operation 5
Address Map 5
Clock and Calendar 6
Special Purpose Registers 7
Control Register (0Eh) 8
2-Wire Serial Data Bus 9
<RW> 10
Chip Information 11
Thermal Information 11
Package Information 11

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Rainbow-electronics DS1375 Manuale Utente Pagina 4

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