Samsung DVD-A500 Service Manual page 25

Reference Information
2-1-11 AIC2 (W27C020 ; 2MB EPROM)
PGM
A17
Vcc
GND
Vpp
A7 5
A6
6
A5
7
A4 8
A3 9
A2
10
A1 11
A0 12
Q0 13
2-18
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BLOCK DIAGRAM
CE CONTROL
OE
A0
.
DECODER
.
29 A14
A13
28
A8
27
26 A9
25 A11
OE
24
23 A10
22 CE
21 Q7
Q0
.
OUTPUT
.
BUFFER
Q7
CORE
ARRAY
FUNCTION
NAME
A0 - A17
Address Inputs
Data Input/Outputs
Q0 - Q7
CE Chip Enable
Output Enable
OE
PGM
Program Enable
Vpp
Program/Erase Supply Voltage
Power Supply
Vcc
GND
Ground
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