EMC6D102-CZC-TR SMSC, EMC6D102-CZC-TR Datasheet - Page 80
EMC6D102-CZC-TR
Manufacturer Part Number
EMC6D102-CZC-TR
Description
Industrial Temperature Sensors Auto Fan Contrllr Up to 4 Fans
Manufacturer
SMSC
Datasheet
1.EMC6D102-CZC-TR.pdf
(86 pages)
Specifications of EMC6D102-CZC-TR
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Chapter 9 Timing Diagrams
Revision 0.4 (09-25-07)
9.1
9.2
SCLK
SDAT
NAME
t1
t2
P
PWM Outputs
SMBus Interface
t
The following section shows the timing for the PWM[1:3] outputs.
Note 9.1
Note 9.2
BUF
FANx
PWM Period
PWM High Time
S
t
LOW
This value is programmable by the PWM frequency bits located in the FRFx registers.
The PWM High Time is based on a percentage of the total PWM period (min=0/256*T
max =255/256*T
(T
t
HD:STA
PWM
(Note
DESCRIPTION
(Note
t
= t1).
R
9.1)
Table 9.1 Timing for PWM[1:3] Outputs
9.2)
Fan Control Device with Hardware Monitoring and Acoustic Noise Reduction Features
Figure 9.1 PWMx Output Timing
t2
t
t
HIGH
HD:DAT
PWM
Figure 9.2 SMBus Timing
). During Spin-up the PWM High Time can reach a 100% or Full On.
t
SU:DAT
DATASHEET
t1
t
F
80
MIN
11.4
S
0
t
SU:STA
t
HD:STA
TYP
MAX
90.9
99.6
t
SU:STO
SMSC EMC6D102
UNITS
Datasheet
msec
%
P
PWM
,
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