DS1620 Ver la hoja de datos (PDF) - Maxim Integrated

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componentes Descripción

Fabricante

DS1620

Digital Thermometer and Thermostat

Maxim Integrated 

DS1620 COMMAND SET Table 4

3-WIRE BUS

DATA AFTER

ISSUING

INSTRUCTION DESCRIPTION

PROTOCOL PROTOCOL

TEMPERATURE CONVERSION COMMANDS

Read Temperature Reads last converted temperature

AAh

<read data>

value from temperature register.

Read Counter Reads value of count remaining

A0h

<read data>

from counter.

Read Slope Reads value of the slope

A9h

<read data>

accumulator.

Start Convert T Initiates temperature conversion.

EEh

Idle

Stop Convert T Halts temperature conversion.

22h

Idle

THERMOSTAT COMMANDS

Write TH

Writes high temperature limit value

01h

<write data>

into TH register.

Write TL

Writes low temperature limit value

02h

<write data>

into TL register.

Read TH

Reads stored value of high

A1h

<read data>

temperature limit from TH register.

Read TL

Reads stored value of low

A2h

<read data>

temperature limit from TL register.

Write Config Writes configuration data to

0Ch

<write data>

configuration register.

Read Config Reads configuration data from

ACh

<read data>

configuration register.

DS1620

NOTES

1

1

2

2

2

2

2

2

NOTES:

1. In continuous conversion mode, a Stop Convert T command will halt continuous conversion. To

restart, the Start Convert T command must be issued. In one–shot mode, a Start Convert T command

must be issued for every temperature reading desired.

2. Writing to the E2 requires up to 10 ms at room temperature. After issuing a write command no further

writes should be requested for at least 10 ms.

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