76
MEH-P5000R
Function and Operation
LCD segment signal output
LCD common signal output
Power supply
LCD Power supply
71
VLCD1
LCD bias power supply
72
VLCD2
LCD bias power supply
73
VSS
GND
74
OSC
I/O
75
linh
I
Inhibit input from IC901
76
CE
I
Chip enable output pin for LCD driver
77
CL
I
Clock output for LCD driver
78
DI
I
Data output for LCD driver
79,80
SE1,SE2
O
LCD segment signal
-
Pin Functions (PD6277A)
Pin No.
Pin Name
I/O
Format
Function and Operation
1
VSS
GND
2
X1
Crystal oscillator connection pin
3
X0
Crystal oscillator connection pin
4
reset
I
System reset input
5
MOD1
I
Operation mode appointment input
6
MOD0
I
Operation mode appointment input
7
LED
O
C
LED control output
8
S0
O
C
System micro computer UART communication data output
9
S1
I
System micro computer UART communication data input
10
REM
I
Remote control reception input
11
dim
O
C
Dimmer output
12
ILM
O
C
Illumination color select output
13–16
kd$
–
kd!
I
Key data input
17–22
kst^
–
!
O
C
Key strobe output
23
VCC
Power supply
24
inh
O
N
LCD driver display inhibit output
25
CE
O
N
Chip enable output for display driver
26
CL
O
N
Synchronizing signal output for display driver
27
DI
O
N
Data output for display driver
28–73
SEG45-0
O
L
LCD segment output
74–77
COM3–0
O
L
LCD common output
78
V3
LCD drive power supply
79
V2
LCD bias power supply
80
V1
LCD bias power supply
*PD6277A
20
21
60
61
80
1
Format
Meaning
C
C MOS
N
N channel open drain
L
LCD C output
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