emc2104 Standard Microsystems Corp., emc2104 Datasheet - Page 98
emc2104
Manufacturer Part Number
emc2104
Description
Emc2104 Dual Rpm-based Pwm Fan Controller With Hardware Thermal Shutdown
Manufacturer
Standard Microsystems Corp.
Datasheet
1.EMC2104.pdf
(101 pages)
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Revision 1.74 (05-08-08)
TACH COUNT
(DECIMAL)
1024
1056
1088
1216
1248
1280
1312
1344
1376
1408
1440
1472
1504
1536
1568
1600
1632
1664
1696
1728
1760
1120
1152
1184
800
832
864
896
928
960
992
Table C.1 Tachometer Count to RPM Look Up Table (Range = 1000 RPM) (continued)
READING (HEX)
REGISTER
1A
1B
1C
1D
1E
1F
2A
2B
2C
2D
2E
2F
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
FAN SPEED
(RPM)
9830
9452
9102
8777
8474
8192
7928
7680
7447
7228
7022
6827
6642
6467
6302
6144
5994
5851
5715
5585
5461
5343
5229
5120
5016
4915
4819
4726
4637
4551
4468
DATASHEET
Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown
98
TACH COUNT
(DECIMAL)
4896
4928
4960
4992
5024
5056
5088
5120
5152
5184
5216
5248
5280
5312
5344
5376
5408
5440
5472
5504
5536
5568
5600
5632
5664
5696
5728
5760
5792
5824
5856
REGISTER
READING
(HEX)
AC
AD
9A
9B
9C
9D
9E
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
AA
AB
AE
AF
B0
B1
B2
B3
B4
B5
B6
B7
99
9F
FAN SPEED
SMSC EMC2104
(RPM)
1606
1596
1586
1575
1565
1555
1546
1536
1526
1517
1508
1499
1489
1480
1472
1463
1454
1446
1437
1429
1421
1412
1404
1396
1388
1381
1373
1365
1358
1350
1343
Datasheet
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