Preliminary
MOSEL VITELIC INC.
MSU3022/U3032/U3042
Signal Summary
84L
PLCC
pin #
dice
Pad #
Signal
symbal
Active
I/O
F u n c t i o n s
63
Vdd1
1
1
2
1
1
1
25
2
1
2
2
1
4
1
1
1
1
1
1
1
2
3
1
1
1
4
4
1
2
Power
Positive power supply for CPU function block
64
Vreg
O
Voltage regulator
65, 66
67
CUP1,2
X1
I
Voltage doubler capacitor
I
Crystal Oscillator input, 32768 Hz
Crystal Oscillator Output, 32768 Hz
Common plate for LCD panel
25 segment outputs for LCD panel
Common plate for LCD panel
Negative power supply
68
X2
O
69
COM1
SEG1-25
COM3,2
BAK
O
70, 1-24
25, 26
27
O
O
Power
28, 29
30, 31
32
Vss1,2
S4,S3
LGT
Power
BackUp negative power supply
One-way input port; note 1
I
O
I/O
I
Output port
33-36
37
IOA1-4
RES
Bidirectional Input / output port
System reset
H
38
NC2
No connection
39
NC3
No connection
40
Vdd2
Power
I
Positive supply for voice function block, internally connected to pad Vdd1
Oscillator Resistor for voice function block
Negative power supply for voice signal
Audio signal current output
41
Rosc
42
VssV
Power
O
43
Cout
44, 45
46-48
49
Vout1,2
IOB1,2,3
NC1
O
Audio signal voltage output
I/O
I/O
Bidirectional Input / Output port
No connection
50
IOB4
Bidirectional Input / Output port
Busy status output; internally connected to INT (interrupt request) pin of CPU
One-way output port, 4 bits
51
VBZ/INT
P1,2,3,4
M1,2,3,4
NC4
I/O
O
I
52-55
56-59
60
One-way input port; note 1
NC
I
No connection
61,62
S2,1
One-way input port, note 1
Note 1. with chatter removal time for either 8 ms (ph8) or 2 ms (ph6)
Specifications subject to change without notice, contact your sales representatives for the most recent information.
4/16
PID 262(*) 08/97
MOSEL [ MOSEL VITELIC, CORP ]
