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1.7
Pin Descriptions
1.7.1 Descriptions of the Basic Functions of Each Pin
The basic functions of each pin of the ML63611 are listed in Table 1-3. Use of a slash ("/") in a pin name
indicates that the pin has a secondary function. See Table 1-4 for the secondary functions.
In the I/O column, "—" indicates a power supply pin, "I" indicates an input pin, "O" indicates an output pin, and
"I/O" indicates an input/output pin.
Classification
Power Supply
Oscillation
Test
OPTION A (C): 1.5 V (3.0 V), Without regulator
circuit for LCD bias
Table 1-3 Pin Description (Basic Functions)
Pin
Pad No.
I/O
name
V
38, 129
DD
V
63, 123
SS
V
113
DD1
V
114
DD2
V
115
DD3
C1
116
C2
117
V
120
—
HF
V
119
XT
V
118
CH
HC1
121
HC2
122
XT0
128
I
XT1
127
O
OSC0
125
I
OSC1
124
O
TST1
39
I
TST2
40
Function
Positive power supply
Negative power supply
Power supply pins for LCD bias voltage (internally
generated):
A capacitor (1.0 µF) should be connected between V
and V
, between V
and V
SS
DD2
For the OPTION A, connect V
C, connect V
with V
.
DD2
DD
Capacitor connection pins for LCD bias voltage
generation:
A capacitor (1.0 µF) should be connected between C1 and
C2.
Power supply pin for the internal regulator:
A capacitor (0.1 µF) should be connected between this pin
and V
. Leave this pin open for the OPTION A and
SS
OPTION B.
Power supply pin for the voltage regulator circuit for low-
speed oscillation:
A capacitor (0.1 µF) should be connected between this pin
and V
.
SS
Power supply pin for the voltage regulator circuit for
internal logic:
(0.1 µF) should be connected between this
A capacitor C
1
pin and V
SS.
Capacitor connection pins for the halver circuit:
A capacitor (0.1 µF) should be connected between HC1
and HC2. Leave these pins open for the OPTION A and
OPTION B.
Low-speed clock oscillation pins:
Connect a crystal between XT0 and XT1, and connect
capacitor (C
) between XT0 and V
G
High-speed clock oscillation pins:
Ceramic oscillation or RC oscillation is selected by the
software. In the OPTION A and OPTION B, only RC
oscillation is available.
If ceramic oscillation is selected, connect a ceramic
resonator between OSC0 and OSC1, and connect
capacitor (C
, C
) between OSC0 and V
L0
L1
OSC1 and V
.
SS
If RC oscillation is selected, connect external oscillation
resistor (R
) between OSC0 and OSC1.
OSH
Input pins for testing:
A pull-down resistor is internally connected to these pins.
1 – 15
OPTION B (D): 1.5 V (3.0 V), With regulator
ML63611 User's Manual
Chapter 1 Overview
DD1
, and between V
and V
SS
DD3
with V
; for the OPTION
DD1
DD
SS.
and between
SS
circuit for LCD bias
.
SS
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