Rainbow-electronics DS1631 Manual do Utilizador descarregar pdf (Página 2)

DS1631

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DETAILED PIN DESCRIPTION Table 1

PIN SYMBOL DESCRIPTION

1SDAData input/output pin for 2-wire serial communication port. Open drain.

2SCLClock input pin for 2-wire serial communication port.

OUT

Thermostat output pin. Push-pull.

4 GND

Ground pin.

Address input pin.

Supply Voltage. 2.7V to 5.5V input power pin.

DS1631 FUNCTIONAL BLOCK DIAGRAM Figure 1

DS1631 REGISTER SUMMARY Table 2

NAME

USER

ACCESS

SIZE MEMORY

TYPE

AND POWER-UP/POR STATE

Temperature (Read Only) 2 bytes SRAM Measured temperature in two’s complement

format.

Power-up/POR state: -60ºC (1100 0100

0000 0000)

(Read/

Write)

2 bytes EEPROM Upper alarm trip point in two’s complement

format.

Power-up/POR state: user defined.

(Read/

Write)

2 bytes EEPROM Lower alarm trip point in two’s

complement format.

Power-up/POR state: user defined.

Configuration (Read/

Write, but

some bits are

Read Only—

see Table 5)

1 byte SRAM and

EEPROM

Configuration and status information.

Unsigned data.

6 MSbs = SRAM

2 LSbs (POL and 1SHOT bits) = EEPROM

Power-up/POR state: 100011XX (XX =

User defined)

DIGITAL

COMPARATOR/LOGIC

CONFIGURATION REGISTER

ND CONTROL LOGIC

TEMPERAT

ADDRESS

AND

I/O CONTROL

SCL

GND

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

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