MAX6639 查看數據表（PDF） - Maxim Integrated
零件编号
产品描述 (功能)
生产厂家
MAX6639 Datasheet PDF : 22 Pages
| |||
MAX6639/MAX6639F
2-Channel Temperature Monitor with Dual,
Automatic, PWM Fan-Speed Controller
Table 4. Register Map
READ/
WRITE
REGISTER
NO.
ADDRESS
POR
STATE
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
R
00h
0000 Temperature MSB
0000 channel 1 (+128°C)
—
—
—
—
—
—
LSB
( 1° C )
R
01h
0000 Temperature MSB
0000 channel 2 (+128°C)
—
—
—
—
—
—
LSB
( 1° C )
0000
Channel 1 Channel 2 Channel 1 Channel 2 Channel 1 Channel 2
Fan 2
R
02h
0000 Status byte ALERT ALERT
OT
OT
THERM THERM Fan 1 fault fault
R/W
03h
0000
0011
Output mask
Channel 1
ALERT
Channel 2
ALERT
Channel 1
OT
Channel 2
OT
Channel 1
THERM
Channel 2
THERM
Fan 1 fault
Fan 2
fault
SMBus Temp
Run
timeout: channel 2 PWM
R/W
04h
0011
0000
Global
configuration
0 = run,
1= stby
POR:
1 = reset
0=
enabled,
source:
1 = local,
output
frequency
Reserved
Reserved Reserved
1 = 0 = remote range
disabled
2
R
05h
0000
0000
Channel 1
extended
temperature
MSB
(0.5°C)
—
LSB Reserved Reserved Reserved Reserved Diode
(0.125°C)
fault
R
06h
0000
0000
Channel 2
extended
temperature
MSB
(0.5°C)
—
LSB
(0.125°C)
Reserved
Reserved
Reserved
Reserved
Diode
fault
R/W
08h
0101 Channel 1
0101 ALERT limit
MSB
—
—
—
—
—
—
LSB
( 1° C )
R/W
09h
0101 Channel 2
0101 ALERT limit
MSB
—
—
—
—
—
—
LSB
( 1° C )
R/W
0Ah
0110 Channel 1 OT
1110
limit
MSB
—
—
—
—
—
—
LSB
( 1° C )
R/W
0Bh
0110 Channel 2 OT
1110
limit
MSB
—
—
—
—
—
—
LSB
( 1° C )
R/W
0Ch
0101 Channel 1
0101 THERM limit
MSB
—
—
—
—
—
—
LSB
( 1° C )
R/W
0Dh
0101 Channel 2
0101 THERM limit
MSB
—
—
—
—
—
—
LSB
( 1° C )
R/W
10h
1000
Fan 1
configuration
PWM
Rate of
change
Rate of
Rate of Fan 1
Fan 1
RPM
change channel 1 channel 2 range
RPM
range
0010
1
mode
(MSB) change (LSB)
control control select select
Minimum
R/W
11h
0000
Fan 1
Configuration
RPM step-
size A
RPM step-
RPM step-
RPM step-
size A
Temp
step-size
Temp
step-size
PWM
fan
speed:
0000
2a
(MSB)
size A
size A
(LSB)
A (MSB) A (LSB)
Polarity 0 = 0%,
1= value
Maxim Integrated
11
Share Link: 