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TCM1617 Datasheet(PDF) 7 Page - Microchip Technology

Part # TCM1617
Description  SMBus Thermal Sensor with External Diode Input
PDF  14 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TCM1617 Datasheet(HTML) 7 Page - Microchip Technology

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TCM1617
TCM1617-1 2/5/99
 2001 Microchip Technology Inc.
DS21485A
SMBus Thermal Sensor with External Diode Input
Figure 2. TCM1617 Functional Description Flowchart
NO
NO
NO
YES
STBY mode
active?
YES
NO
NO
POR, initialize
all registers
NO
YES
YES
YES
YES
Start internal
conversion,
STATUS [D7]
STBY
active?
EOC?
Monitor SMBus
for START
condition
Stop conv., reset
STATUS D[7]
Update
INT_TEMP
Thermal Trip?
Start external
conversion
STBY
active?
NO
Ext. diode
open?
EOC?
YES
Update
EXT_TEMP
Thermal Trip?
YES
CONFIG
[D7] active?
YES
NO
Enable
ALERT#
NO
Set appropriate
STATUS bit
D[6:2]
Reset STATUS
bit D[7]
YES
NO
Execute
STATUS read and
clear STATUS
Execute SMBus
read
Execute SMBus
write
STATUS
read?
Read/
Write?
ARA?
ALERT#
active?
Disable and re-arm
ALERT#, send
local address to host
YES
WRITE
YES
READ
YES
YES
NO
One Shot?
Rest
period over?
YES
NO
NO
YES
NO
NO
NO
Perform one
conversion cycle
STBY
released?
One
shot?
YES
NO
Valid
command?
ARA bus
arbitration
Win
arbitration?
YES
YES
Address
match?
NO
NO
Rest Period
according to
CONV_RATE
register



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