Datasheet

DS1848
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DS1848 BLOCK DIAGRAM Figure 1
2-Wire
Interface
Digital
Temperature
Sensor
256 Position
Digitally-
Controlled
10kW or 50kW
Resistor 0
256 Position
Digitally-
Controlled 10k
W
Resistor 1
SD
A
SCL
H0
L0
H1
L1
Table Select Byte
Configuration Byte
Temperature MSB
Byte
Temperature LSB
Byte
Address Pointer
User Memory
Internal Address Sel
User Memory
Resistor 0 Setting
Resistor 1 setting
User Memory
72x8 bit
EEPROM
Resistor 0
Look-up Table
(Table 1)
72x8 bit
EEPROM
Resistor 1
Look-up Table
(Table 2)
A0
A1
A2
Vcc
Gnd
WP
128x8 bit
USER
EEPROM
(Table 0)
0h
7Fh
E0h
E1h
E2h
E3h
E4h
E5h-
E6h
E7h
E8h-
EFh
F0h
F1h
F2h-
FFh
0h
47h