Rainbow Electronics MAX1619 - Manual (Page 7)

MAX1619
Remote/Local Temperature Sensor with Dual-
Alarm Outputs and SMBus Serial Interface
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Figure 1. Functional Diagram
REMOTE
MUX LOCAL
REMOTE TEMPERATURE
DATA REGISTER
HIGH-TEMPERATURE THRESHOLD
(REMOTE T
HIGH
)
LOW-TEMPERATURE THRESHOLD
(REMOTE T
LOW
)
DIGITAL COMPARATOR
(REMOTE)
LOCAL TEMPERATURE
DATA REGISTER
HIGH-TEMPERATURE THRESHOLD
(REMOTE T
MAX
)
HYSTERESIS THRESHOLD
(REMOTE T
HYST
)
DIGITAL COMPARATOR (REMOTE OVERTEMP)
COMMAND BYTE (INDEX) REGISTER
SMBDATA SMBCLK
ADDRESS DECODER
READ
WRITE
CONTROL
LOGIC
SMBus
ADD1
ADD0
STBY
STATUS BYTE REGISTER
CONFIGURATION BYTE REGISTER
CONVERSION RATE
REGISTER
ALERT RESPONSE
ADDRESS REGISTER
SELECTED VIA SLAVE ADD = 0001 100
ADC
+
DIODE FAULT
DXP DXN GND
V
CC
- + -
+ -
8 8
8
8
8
88
2
7
ALERT OVERT
QS
R
Q
S R
POL
MAX1619