FEDL64168-01
Semiconductor
ML64168
PIN DESCRIPTIONS
The basic functions of each pin of the ML64168 is described in Table 1.
A symbol with a slash ( / ) denotes a pin that has a secondary function.
Refer to Table 2 for secondary functions.
For Type, “ - ” denotes a power supply pin, “ I ” an input pin, “O” an output pin, and “I/O” an input-
output pin.
Table 1 Pin Descriptions ( Basic Functions )
Pin No.
GP
GA,
TB
Function
Symbol
V
SS
V
DD
V
DD1
V
DD2
V
DD3
V
DDI
V
DDL
C1
C2
XT
XT
OSC1
OSC2
TST1
TST2
RESET
Pad
No.
30
65
40
42
43
41
29
44
45
67
66
64
63
69
70
68
Type
-
-
-
-
-
-
-
-
-
I
O
I
O
I
I
I
0V power supply
Description
32
67
42
44
45
43
31
46
47
69
68
66
65
71
72
70
30
65
40
42
43
41
29
44
45
67
66
64
63
69
70
68
Positive power supply
Bias output for driving LCD (
+
1.5V,
+
1.2V* )
Bias output for driving LCD (
+
3.0V,
+
2.4V* )
Bias output for driving LCD (
+
4.5V,
+
3.6V* )
Positive power supply for I/O port interface
Positive power supply for internal logic
( An internally generated constant voltage is present at
this pin. )
Pins for connecting a capacitor for generating LCD
driving bias
Low-speed clock oscillation input and output pins.
Connect to a crystal ( 32.768kHz ).
High-speed clock oscillation input and output pins.
Connect to an external resistor for oscillation ( R
OS
).
Input pins for testing.
A pull-up resistor is internally connected to these pins.
System reset input pin.
Setting this pin to
″
L
″
level puts this device into a
reset state. Then, setting this pin to
″
H
″
level starts
executing an instruction from address 0000H.
Power
Supply
Oscillation
Test
Reset
* When the voltage regulator for LCD driver is used.
8/49
OKI [ OKI ELECTRONIC COMPONETS ]
