Rainbow-electronics DS7505 Bedienungsanleitung PDF herunterladen (Seite 4)

DS7505

Digital Thermometer and Thermostat

4 _______________________________________________________________________________________

Pin Description

PIN NAME FUNCTION

1 SDA Data Input/Output. For 2-wire serial communication port. Open drain.

2 SCL Clock Input. For 2-wire serial communication port.

3 O.S. Thermostat Output. Open drain.

4 GND Ground

5 A2 Address Input

6 A1 Address Input

7 A0 Address Input

8 VDD Supply Voltage. +1.7V to +3.7V supply pin.

SDA

SCL

SR P S

LOW

HD:STA

HD:DAT

SU:STA

SU:STO

HD:STA

SU:DAT

BUF

Figure 1. Timing Diagram

OVERSAMPLING

MODULATOR

DIGITAL

DECIMATOR

PRECISION

REFERENCE

ADDRESS

AND

I/O CONTROL

VDD

CONFIGURATION

TEMPERATURE

SCL

SDA

O.S.

GND

AND T

HYST

REGISTERS

THERMOSTAT

COMPARATOR

DS7505

Figure 2. Block Diagram

1 2 3 4 5 6 7 8 9 ... 13 14

General Description 1
Applications 1
Features 1
Pin Configurations 1
Ordering Information 1
ABSOLUTE MAXIMUM RATINGS 2
DC ELECTRICAL CHARACTERISTICS 2
AC ELECTRICAL CHARACTERISTICS 2
Pin Description 4
Operation 5
Measuring 5
Temperature 5
Shutdown Mode 6
Thermostat 6
Interrupt Mode 7
Configuration Register 8
Register Pointer 9
2-Wire Serial Data Bus 9
Figure 7. Address Byte 10
Figure 8. Pointer Byte 10
General 2-Wire Information 11
Command Set 11
Package Information 13
Revision History 14

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