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Электронный компонент: ML9090A-02

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FEDL9090A-01
1Semiconductor
This version:
May
2001
ML9090A-01, -02
LCD Driver with Key Scanner and RAM
1/41
GENERAL DESCRIPTION
The ML9090A-01 and ML9090A-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 data 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
18 dots (80
10 dots for the
ML9090A-01, 80
18 dots for the ML9090A-02).
Since containing voltage multipliers, the ML9090A-01 and ML9090A-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: 2.7 to 5.5 V
LCD drive voltage: 6 to 16 V (positive voltage)
80 segment outputs, 10 common outputs for ML9090A-01 and 18 common outputs for ML9090A-02
Built-in bit-mapped RAM (ML9090A-01: 80
10 = 800 bits, ML9090A-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 or tripler circuit
Built-in 5
5 key scanner
Port A output
: 1 pin, output current: 15 mA: (may be used for LED driving)
Port B output
: 8 pins
Output current (available for the ML9090A-01 only)
2 mA : 5 pins
15 mA : 3 pins
Temperature range: 40 to +85C
Package: 128-pin plastic QFP (QFP128-P-1420-0.50-K)
(Product name: ML9090A-01GA)
(Product name: ML9090A-02GA)
Comparison between the ML9090A-01 and the ML9090A-02
Item
ML9090A-01
ML9090A-02
Number of common outputs
10 Max.
18 Max.
Number of dots on the LCD screen
(selectable by program)
8
80
9
80
10
80
16
80
17
80
18
80
Number of port A outputs
1
1
Number of port B outputs
8
--
FEDL9090A-01
1Semiconductor
ML9090A-01, -02
2/41
BLOCK DIAGRAM (1/2)
ML9090A-01
C0 C1 C2 C3 C4
R0 R1 R2 R3
PA0
R4
KREQ
Y
A
DDRES
S
CO
UNT
E
R
Y AD
D
R
E
SS

D
E
CO
D
E
R
L
I
NE
A
DDRE
S
S
DE
C
O
DE
R
Y
A
DDRES
S

REGI
SE
R
INPUT O
U
TPUT
INTERFACE
DI
S
P
L
A
Y
L
I
NE

CO
UN
TE
R
DISPLAY DATA RAM
80
10 BITS
DATA LATCH
80-OUT SEGMENT DRIVER
VOLTAGE
DOUBLER/
TRIPLER
LCD BIAS
VOLTAGE
DIVIDING
CIRCUIT
X ADDRESS DECODER
8-PORT
DRIVER
10-OUT
COMMON
DRIVER
SHIFT
REGISTER
TIMING
GENERATOR
X ADDRESS COUNTER
X ADDRESS REGISTER
I/O
BUFFER
COM1
V
IN
V
2
V
3B
V
3A
CS
OSC1
RESET
CP
OSC2
TEST
DI/O
V
DD
V
SS
V
C1
V
C2
V
S1
V
S2
DT
PB0
SEG1
COM10
PB7
SEG80
OSCILLATION
CIRCUIT
1 PORT
DRIVER
5
5 KEY SCANNER
CO
NTROL
REG
I
STER
FEDL9090A-01
1Semiconductor
ML9090A-01, -02
3/41
BLOCK DIAGRAM (2/2)
ML9090A-02
Y
A
DDRES
S
CO
UNT
E
R
Y AD
D
R
E
S
S

D
E
CO
D
E
R
L
I
NE
A
DDRE
S
S
DE
C
O
DE
R
Y
A
DDRES
S
REG
I
S
E
R
DISPLAY DATA RAM
80
18 BITS
DATA LATCH
SHIFT REGISTER
80-OUT SEGMENT DRIVER
X ADDRESS DECODER
18-OUT
COMMON DRIVER
TIMING
GENERATOR
X ADDRESS COUNTER
X ADDRESS REGISTER
I/O
BUFFER
COM1
SEG1
COM18
SEG80
C0 C1 C2 C3 C4
R0 R1 R2 R3
PA0
R4
KREQ
INPUT O
U
TPUT
INTERFACE
DI
SP
LAY
LI
NE
COUNT
E
R
VOLTAGE
DOUBLER/
TRIPLER
LCD BIAS
VOLTAGE
DIVIDING
CIRCUIT
V
IN
V
2
V
3B
V
3A
CS
OSC1
RESET
CP
OSC2
TEST
DI/O
V
DD
V
SS
V
C1
V
C2
V
S1
V
S2
DT
OSCILLATION
CIRCUIT
1 PORT
DRIVER
5
5
KEY SCANNER
CO
NTROL
REG
I
STER
FEDL9090A-01
1Semiconductor
ML9090A-01, -02
4/41
PIN CONFIGURATION (TOP VIEW) 1/2
ML9090A-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
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
SEG71
SEG70
SEG6
SEG7
SEG
7
4
SEG
7
5
SEG
7
6
SEG
7
7
SEG
7
8
SEG
7
9
SEG
8
0
CO
M
1
CO
M
2
CO
M
3
CO
M
4
CO
M
5
CO
M
6
CO
M
7
CO
M
8
CO
M
9
CO
M
1
0
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PA0
12
8
12
7
12
6
12
5
12
4
12
3
12
2
12
1
12
0
11
9
11
8
11
7
11
6
11
5
11
4
11
3
11
2
11
1
11
0
10
9
10
8
10
7
10
6
10
5
10
4
10
3
SEG
3
5
SEG
3
4
SEG
3
3
SEG
3
2
SEG
3
1
SEG
3
0
SEG
2
9
SEG
2
8
SEG
2
7
SEG
2
6
SEG
2
5
SEG
2
4
SEG
2
3
SEG
2
2
SEG
2
1
SEG
2
0
SEG
1
9
SEG
1
8
SEG
1
7
SEG
1
6
SEG
1
5
SEG
1
4
SEG
1
3
SEG
1
2
SEG
1
1
SEG
1
0
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-pin plastic QFP
FEDL9090A-01
1Semiconductor
ML9090A-01, -02
5/41
PIN CONFIGURATION (TOP VIEW) 2/2
ML9090A-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
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
SEG71
SEG70
SEG6
SEG7
SEG
7
4
SEG
7
5
SEG
7
6
SEG
7
7
SEG
7
8
SEG
7
9
SEG
8
0
CO
M
1
CO
M
2
CO
M
3
CO
M
4
CO
M
5
CO
M
6
CO
M
7
CO
M
8
CO
M
9
CO
M
1
0
CO
M
1
1
CO
M
1
2
CO
M
1
3
CO
M
1
4
CO
M
1
5
CO
M
1
6
CO
M
1
7
CO
M
1
8
PA0
12
8
12
7
12
6
12
5
12
4
12
3
12
2
12
1
12
0
11
9
11
8
11
7
11
6
11
5
11
4
11
3
11
2
11
1
11
0
10
9
10
8
10
7
10
6
10
5
10
4
10
3
SEG
3
5
SEG
3
4
SEG
3
3
SEG
3
2
SEG
3
1
SEG
3
0
SEG
2
9
SEG
2
8
SEG
2
7
SEG
2
6
SEG
2
5
SEG
2
4
SEG
2
3
SEG
2
2
SEG
2
1
SEG
2
0
SEG
1
9
SEG
1
8
SEG
1
7
SEG
1
6
SEG
1
5
SEG
1
4
SEG
1
3
SEG
1
2
SEG
1
1
SEG
1
0
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-pin plastic QFP