Read Sharp LC-42XD1E (serv.man6) Service Manual online
LC-42XD1E/RU
5 – 6
4. IC3503: RH-iXB754WJZZQ
128Mb Flash Memory
5. IC3504: RH-iXB753WJZZY
16BIT D-TYPE LATCH.
Pin No.
Pin Name
I/O
Pin Function
2-12, 15, 18-26,
54, 31
54, 31
A0-A22
I
23 Address Inputs.
35, 37, 39, 41,
44, 46, 48, 50
44, 46, 48, 50
DQ0-DQ7
I/O
8 Data Inputs/Outputs.
35-42, 44-50
DQ8-DQ14
I/O
7 Data Inputs/Outputs.
51
DQ15A-1
I
Data Input/Output or Address Input.
32
CE
I
Chip Enable.
34
OS
O
Output Enable.
13
WE
I
Write Enable.
16
Vpp/WP
I
Hardware Vpp/ Write Protect
14
RP
I
Reset/Block Temporary Unprotect.
17
R/B
O
Ready / Busy Output.
53
BYTE
I
Byte/Word Organization Select.
43
VCC
—
Supply Voltage
33, 52
VSS
—
Ground.
27, 28, 55, 56
NC
—
Not Connected Internally.
29
VCCQ
—
Supply Voltage for Input/Output.
Pin No.
Pin Name
I/O
Pin Function
47, 46, 44, 43,
41, 40, 38, 37
41, 40, 38, 37
1D1-1D8
I
Input Signal 1D1-1D8.
36, 35, 33, 32,
30, 29, 27, 26
30, 29, 27, 26
2D1-2D8
I
Input Signal 2D1-2D8.
1
1OE
I
Non_Output Enable Signal 1.
24
2OE
I
Non_Output Enable Signal 2.
48
1LE
I
Latch Enable Signal 1.
25
2LE
I
Latch Enable Signal 2.
2, 3, 5, 6, 8, 9,
11, 12
11, 12
1Q1-1Q8
O
Latch Output Signal 1Q1-1Q8.
13, 14, 16, 17,
19, 20, 22, 23
19, 20, 22, 23
2Q1-2Q8
O
Latch Output Signal 2Q1-2Q8.
7, 18, 31, 42
VCC
—
Supply Voltage.
4, 10, 15, 21,
28, 34, 39, 45
28, 34, 39, 45
GND
—
Ground.
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