三合微科股�½有限公司
S
AM
H
OP
Microelectronics Corp.
SM3502
FAN CONTROLLER
PIN DESCRIPTIONS
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin Name
LIGHT
DI
OFF
TIMER
SPEED
MODE
COM1
COM2
COM3
SWING
SHO
STRONG
MEDIUM
LOW
VDD
BUZ
OSC2
OSC1
VSS
LTO
I/O
I
I
I/O
I/O
I/O
I/O
O
O
O
I
O
O
O
O
POWER
O
O
I
POWER
O
Function
Light control input
Remote control input
Off function control input
Timer setting input
Wind grade selection input
Wind mode selection input
LED scanning common pin / Customer code
LED scanning common pin / Customer code
LED scanning common pin
Swing head control input / Customer code
Swing head / tuner pulse output
Wind speed control output
Wind speed control output
Wind speed control output
Positive power supply
Trigger output to drive piezo
Crystal output
Crystal input
Negative power supply (Substrate)
Light control output
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V.1.0
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
