Document
FEIYI Touch key Controller
FTC333F v0.2
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FEIYI Touch key Controller
FTC333F v0.2
K4 K5 K6 K7 K8 GND SCAN
1 2 3 4 5 6 7
14 K3 13 K2 12 K1 11 CAPN 10 VDD 9 OUT2 8 OUT1
SOP14L
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FEIYI Touch key Controller
FTC333F v0.2
K8 K7 K6 K5 K4
K3 K2 K1
R8 R7 R6 R5 R4 1K 1K 1K 1K 1K
R10 20K
U?
1 2 3 4 5 6 7
K4 K5 K6 K7 K8 GND SCAN
K3 K2 K1 CAPN VDD OUT2 OUT1
FTC333F
14 13 12 11 10 9 8
R3 R2 R1 1K 1K 1K
VDD
R18 30
CS1 CS2 103 *
C3 + C4 104
100uF
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
DIO VDD SLK STB 10K
VDD 104
U2 1628
1 2 3 4 5 6 7 8 9 10 11 12 13 14
NC DIO SCLK STB KEY1 KEY2 VDD SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7
GND GRID1 GRID2
GND GRID3 GRID4
GND VDD GRID5 GRID6 GRID7 SEG10 SEG9 SEG8
28 27 26 25 24 23 22 21 20 19 18 17 16 15
VDD
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FEIYI Touch key Controller
FTC333F v0.2
Page 4 of 10
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FEIYI Touch key Controller
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