STBY
ADD ADD1
DXP4
DXN4
ADDRESS
DECODER
MUX
CURRENT
SOURCES
SMBDATA
SMBus
SMBCLK
ADC
DIODE
FAULT
LOCAL
CONTROL
LOGIC
DXP3
DXN3
DXP2
DXN2
DXP1
DXN1
COMMAND BYTE REGISTER
TEMPERATURE DATA REGISTERS
Figure 1. MAX1668/MAX1805/MAX1989 Functional Diagram
STATUS BYTE REGISTERS
1 AND 2
HIGH LIMITS REGISTERS
CONFIGURATION BYTE
REGISTER
LOW LIMITS REGISTERS
ALERT RESPONSE
ADDRESS REGISTER
ALERT
R
ALERT MASK
REGISTER
S
Q
DIGITAL COMPARATORS
NOTE:
DOTTED LINES ARE FOR MAX1668 AND MAX1989.
MAX1668/MAX1805/MAX1989
†
_______________________________________________________________________________________
Multichannel Remote/Local
Temperature Sensors
7