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Preliminary
Semiconductor
ML9090-01,-02
LCD Driver with Key Scanner and RAM
GENERAL DESCRIPTION
The ML9090-01 and ML9090-02 are LCD drivers that contain internal RAM and a key scan
function. They are best suited for car audio displays.
Since 1-bit data of the display RAM corresponds to the light-on or light-off of 1-dot of the LCD
panel (a bit map system), a flexible display is possible.
A single chip can implement a graphic display system of a maximum of 80 16 dots (80 8 dots
for the ML9090-01, 80 16 dots for the ML9090-02) and an arbitrator display system of 80 2 dots.
Since containing voltage multipliers, the ML9090-01 and ML9090-02 require no power supply
circuit to drive the LCD.
Since the internal 5 5 scan circuit has eliminated the needs of key scanning by the CPU, the ports
of the CPU can be efficiently used.
FEATURES
Logic voltage: V
DD
2.7 to 5.5 V
LCD drive voltage: V
BI
6 to 16 V (positive voltage)
80 segment outputs,10 common outputs for ML9090-01 and 18 common outputs for ML9090-
02
Built-in bit-mapped RAM (ML9090-01: 80 10 = 800 bits, ML9090-02: 80 18 = 1440 bits)
4-pin serial interface with CPU: CS, CP, DI/O, KREQ
Built-in LCD drive bias resistors
Built-in voltage doubler and tripler circuits
Built-in 5 5 key scanner
Port A output : 1 pin, output current: -15mA: (may be used for LED driving)
Port B output : 8 pins
Output current (available for the ML9090-01 only)
2mA : 5 pins
15mA : 3 pins
Temperature range: 40 to +85C
Package: 128-pin plastic QFP (QFP128-P-1420-0.50-K)
(Product name: ML9090-01GA)
(Product name: ML9090-02GA)
Model
ML9090-01
ML9090-02
Display duty
1/8
1/9
1/10
1/16
1/17
1/18
No. of display lines
8
9
10
16
17
18
No. of port B outputs
8
8
8
--
--
--
APPLICATION
Car audio
PEDL9090-02
This version: Jan. 2000
Previous version: Nov. 1998
Semiconductor
ML9090-01,-02
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PEDL9090-02
PIN CONFIGURATION (TOP VIEW)
ML9090-01
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
SEG73
SEG72
SEG69
SEG68
SEG67
SEG66
SEG65
SEG64
SEG63
SEG62
SEG61
SEG60
SEG59
SEG58
SEG57
SEG56
SEG55
SEG54
SEG53
SEG52
SEG51
SEG50
SEG49
SEG48
SEG47
SEG46
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
104
103
SEG35
SEG34
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG74
SEG75
SEG76
SEG77
SEG78
SEG79
SEG80
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM10
PB0
PB1
PB2
PB3
PB4
PB7
PA0
SEG45
SEG44
SEG43
SEG42
SEG41
SEG40
SEG39
SEG38
SEG37
SEG36
V
DD
OSC2
OSC1
DT
V
2
V
3B
V
3A
V
IN
V
C1
V
C2
V
S1
V
S2
V
SS
TEST
RESET
KREQ
DI/O
CS
CP
C0
C1
C2
C3
C4
R0
R1
R2
R3
R4
SEG1
SEG2
SEG3
SEG4
SEG5
SEG8
SEG9
128-Pin Plastic QFP
SEG71
SEG70
SEG33
SEG32
SEG6
SEG7
PB5
PB6
Semiconductor
ML9090-01,-02
5/38
PEDL9090-02
PIN CONFIGURATION (TOP VIEW)
ML9090-02
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
SEG73
SEG72
SEG69
SEG68
SEG67
SEG66
SEG65
SEG64
SEG63
SEG62
SEG61
SEG60
SEG59
SEG58
SEG57
SEG56
SEG55
SEG54
SEG53
SEG52
SEG51
SEG50
SEG49
SEG48
SEG47
SEG46
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
104
103
SEG35
SEG34
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG74
SEG75
SEG76
SEG77
SEG78
SEG79
SEG80
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM10
COM11
COM12
COM13
COM14
COM15
COM18
PA0
SEG45
SEG44
SEG43
SEG42
SEG41
SEG40
SEG39
SEG38
SEG37
SEG36
V
DD
OSC2
OSC1
DT
V
2
V
3B
V
3A
V
IN
V
C1
V
C2
V
S1
V
S2
V
SS
TEST
RESET
KREQ
DI/O
CS
CP
C0
C1
C2
C3
C4
R0
R1
R2
R3
R4
SEG1
SEG2
SEG3
SEG4
SEG5
SEG8
SEG9
128-Pin Plastic QFP
SEG71
SEG70
SEG33
SEG32
SEG6
SEG7
COM16
COM17
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