LC74402 Ver la hoja de datos (PDF) - SANYO -> Panasonic
Número de pieza
componentes Descripción
Fabricante
LC74402 Datasheet PDF : 19 Pages
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LC74401E, 74402, 74402E
Pin Functions
Pin No.
Symbol I/O
64S 64E 80E
48
40
53
V-M
I
Connection
47
39
50
H-M
46
38
49
V-S
I
LA7403 or a sync
separator IC
I
45
37
48
H-S
I
55
47
61
54
46
60
SCL
SDA
I
Microprocessor
I/O
53
45
59
ADRS
I
VSS
56
48
62
RES
I Initialization circuit
Pin No. 80E: LC74401E, 64S: LC74402, 64E: LC74402E
Functions
Circuit type
Main screen vertical synchronization signal
(negative polarity)
Main screen horizontal synchronization signal
(negative polarity)
Sub-screen vertical synchronization signal
(negative polarity)
Sub-screen horizontal synchronization signal
(negative polarity)
Serial clock
I2C
Serial data
Reset
52
44
—
—
—
—
—
—
—
—
10
2
11
3
12
4
13
5
14
6
15
7
16
8
17
9
18
10
19
11
20
12
21
13
22
14
23
15
24
16
25
17
26
18
27
19
28
20
29
21
30
22
31
23
—
—
—
—
—
—
—
—
—
—
—
—
57
TEST
3
PORT1
8
PORT2
15
PORT3
20
PORT4
4
WDO3
5
WDO2
6
WDO1
7
WDO0
9
A8
11
A7
12
A6
13
A5
14
A4
16
A3
17
A2
18
A1
19
A0
21
DT
22
WE
25
RAS
26
CAS
27
SC
28
SODI3
29
SODI2
30
SODI1
31
SODI0
63
D/A1
58
D/A2
52
D/A3
51
D/A4
47
D/A5
46
D/A6
I
VSS
O
O
O
O
O
O
Memory
O
O
O
O
O
O
O Memory
O
O
O
O
O
O
O Memory
O
O
I
I
Memory
I
I
O
O
O
O
O
O
Test (Tied to VSS in normal operation.)
General-purpose ports
Memory write data outputs
MSB
Address
(A8 is left open when
a 256 kbyte external
memory is used.)
LSB
Control signals
Memory read data inputs
PWM D/A converter output
Continued on next page.
No. 4872-12/19
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