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4.11 LC75878W (IC601) : LCD driver
• Pin layout
• Block diagram
• Pin function
1
~
25
75
~
51
26 ~ 50
100 ~ 76
No. Symbol I/O Function
1~73 SEG1~SEG73 O Segment driver output pin.
74 SEG74 O Segment driver output pin.
75 SEG75 O Segment driver output pin.
76~83 COM8~COM1 O Common driver output pin.
84~87 P1~P4 O General-purpose output pin.
88 VDD - Logic block power supply pin.
89 VLCD - LCD driver power supply pin.
90 VLCD0 O LCD driver bias 4/4 voltage (H-level) power pin.
91 VLCD1 I LCD driver bias 3/4 voltage (intermediate level) power pin.
92 VLCD2 I LCD driver bias 2/4 voltage (intermediate level) power pin.
93 VLCD3 I LCD driver bias 1/4 voltage (intermediate level) power pin.
94 VLCD4 I LCD driver bias 0/4 voltage (L-level) power pin.
95 VSS - Power supply pin to connect to ground.
96 OSC I/O Oscillator pin.
97 LCD RESET I Display off general-purpose output port "L" fixed input pin.
98 CE I Chip enable
99 CL I Synchronization clock
100 DI I Transfer data
OSC
VLCD
VLCD0
VLCD1
VLCD2
VLCD3
VLCD4
VDD
VSS
P1
P4
COM1
COM8
S75/COM9
S74/COM10
S73
S1
INH
DI
CL
CE
GENERAL
PORT
COMMON
DRIVER
SEGMENT DRIVER & LATCH
SHIFT REGISTER
CONTROL
REGISTER
CCB
INTERFACE
CLOCK
GENERATOR
CONTRAST
ADJUSTER