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Pin No. Name Description
17 KB_C0
Matrix keyboard
18 KB_C1
19 KB_C2
20 KB_C3
21 B_R0
22 B_R1
23 B_R2
24 CSLED Backlight control IC chip select
25 CLOC Backlight control IC clock
26 DATA Backlight control IC data
27 OE_LCD LCD read enable
28 WE_LCD LCD write enable
29 CS2_LCD LCD chip select
30 F_A1_LCD LCD register select enable
31 F_D7
LCD data bus
32 F_D6
33 F_D5
34 F_D4
35 F_D3
36 F_D2
37 F_D1
LCD data bus
38 F_D0
39 GND Grounding
40 PWB_IN Power On/Off signal