6
4.1.2. Display Block
IC901 : C0HBA0000195
Pin No. Port Description I/O (V)
1 - 4 (NC) - - -
5 - 37 SEG33 -1 LCD segment data O 2.5
38, 39 (NC) - - -
40 - 43 COM4 -1 LCD common O 2.5
44 (NC) - - -
45 - 49 KS2-6 Key scan O 5
50 - 54 Kl1-5 Key data I 0
55 TEST (Connecting to ground) - 0
56 VDD +5V power supply - 5
57 VDD1 VDD1 filter terminal - 3.3
58 VDD2 VDD2 filter terminal - 1.7
59 VSS Ground - 0
60 OSC Oscillator terminal - 3.8
61 DO Key data output O 5
62 CE LCD driver chip enable I 0.3
63 CLK LCD clock I 5.1
64 DI LCD data I 4.9
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