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STFPC311 数据表(PDF) 35 Page - STMicroelectronics

部件名 STFPC311
功能描述  Front panel controller/driver with standby power management
PDF  39 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STFPC311 数据表(HTML) 35 Page - STMicroelectronics

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STFPC311
14 Typical application diagram
35/39
14
Typical application diagram
●
ROSC = 33kΩ ± 1% for oscillator resistor;
●
R1 ~ R4 = 0.75 ~ 1.2k
Ω;
●
R5, R6 = 10k
Ω for external keyboard pull-down resistor;
●
C1 = 33µF-25V electrolytic;
●
C2 = 0.01 ~ 0.1µF-25V ceramic;
●
C3 = 0.01 ~ 0.1µF-63V ceramic;
●
C4 = 33µF-63V electrolytic;
●
D1 ~ D12 = 1N4148;
●
Ef = filament voltage according with the VFD specs;
●
VDD = 3.3V ±10%;
* VSS = down to VDD – 33.3V.
Figure 33. Typical application circuit
V
DD
R
OSC
V
DD
VDD
OSC
STB
CLK
12 x 2
KEYBOARD
Ef
KEY1
KEY2
SEG1/K1
S13/G16 ~ S20/G9
G1 ~ G8
VSS
VSS
DIN
8 Grids/Segments
8 Grids
R6
R5
STFPC311
R1
R2
C1
VFD
SEG12/K12
READY/STBY_n
NC
MUTE
STBY
IR_DATA_IN
LED1
LED2
<
<
<
<
<
<
<
<
<
<
<
V
SS* -30 V
V
DD 3.3V ± 0 .3 V
GND
GND
1
2
3
6
7
9
10
11
12
C2
C3
C4
+
D1
D12
+
8
4
5
R3
LED3
R4
LED4
DOUT
<
V
DD
R
OSC
V
DD
VDD
OSC
STB
CLK
12 x 2
KEYBOARD
Ef
KEY1
KEY2
SEG1/K1
S13/G16 ~ S20/G9
G1 ~ G8
VSS
VSS
DIN
8 Grids/Segments
8 Grids
R6
R5
STFPC311
R1
R2
C1
VFD
SEG12/K12
READY/STBY_n
NC
MUTE
STBY
IR_DATA_IN
LED1
LED2
<
<
<
<
<
<
<
<
<
<
<
V
SS* -30 V
V
DD 3.3V ± 0 .3 V
GND
GND
1
2
3
6
7
9
10
11
12
C2
C3
C4
+
D1
D12
+
8
4
5
R3
LED3
R4
LED4
DOUT
<



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