msm63188a Oki Semiconductor, msm63188a Datasheet - Page 9

• Manufacturer Part Number: msm63188a
• Description: 4-bit Microcontroller With Built-in 1024-dot Matrix Lcd Drivers And Melody Circuit Msm63188a4-bit Microcontroller With Built-in 1024-dot Matrix Lcd Drivers And Melody Circuit, Operating At 0.9 V Min.
• Manufacturer: Oki Semiconductor

¡ Semiconductor
PIN DESCRIPTIONS
The basic functions of each pin of the MSM63188A are 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.
Function Symbol
Oscillation
Melody
Supply
Power
Reset
Test
RESET
OSC0
OSC1
V
TST1
TST2
V
V
V
V
V
MDB
V
V
CB1
CB2
XT0
XT1
V
V
MD
C1
C2
DDH
DD1
DD2
DD3
DD4
DD5
DDL
DDI
DD
SS
Pin
73
62
63
64
65
66
67
68
69
87
74
70
71
72
79
78
76
75
81
80
77
84
85
Table 1 Pin Descriptions (Basic Functions)
Type
—
—
—
—
—
—
—
—
—
—
O
O
O
O
I
I
I
I
I
Positive power supply
Negative power supply
Power supply pins for LCD bias (internally generated).
Capacitors (0.1 mF) should be connected between these pins and
V
Capacitor connection pins for LCD bias generation.
A capacitor (0.1 mF) should be connected between C1 and C2.
Positive power supply pin for external interface
(power supply for input, output, and input-output ports)
Positive power supply pin for internal logic (internally generated).
A capacitor (0.1 mF) should be connected between this pin and V
Voltage multiplier pin for power supply backup (internally generated).
A capacitor (1.0 mF) should be connected between this pin and V
Pins to connect a capacitor for voltage multiplier.
A capacitor (1.0 mF) should be connected between CB1 and CB2.
Low-speed clock oscillation pins.
A 32.768 kHz crystal should be connected between XT0 and XT1,
and C
High-speed clock oscillation pins.
A ceramic resonator and capacitors (C
oscillation resistor (R
Input pins for testing.
A pull-down resistor is internally connected to these pins.
The user cannot use these pins.
Reset input pin.
Setting this pin to "H" level puts this device into a reset state.
Then, setting this pin to "L" level starts executing an instruction
from address 0000H.
A pull-down resistor is internally connected to this pin.
Melody output pin (non-inverted output)
Melody output pin (inverted output)
SS
.
G
(5 to 25 pF) should be connected between XT0 and V
OS
) should be connected to these pins.
Description
L0
, C
L1
) or external
MSM63188A
SS
9/32
.
SS
SS
.
.