Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown
Datasheet
Table C.1 Tachometer Count to RPM Look Up Table (Range = 1000 RPM) (continued)
REGISTER
READING
TACH COUNT
(DECIMAL)
REGISTER
READING (HEX)
FAN SPEED
(RPM)
TACH COUNT
(DECIMAL)
FAN SPEED
(RPM)
(HEX)
3808
3840
3872
3904
3936
3968
4000
4032
4064
77
78
79
7A
7B
7C
7D
7E
7F
2065
2048
2031
2014
1998
1982
1966
1950
1935
7904
7936
7968
8000
8032
8064
8096
8128
8160
F7
F8
F9
FA
FB
FC
FD
FE
FF
995
991
987
983
979
975
971
968
964
SMSC EMC2104
101
Revision 1.74 (05-08-08)
DATASHEET