JVC RC-BM5 - Page 36

RC-BM5
1-36
W27C020 (IC702) : EEPROM
1. Terminal layout
3. Pin function
2. Block diagram
1Vcc32Vpp
2 PGM31A16
3 A1730A15
4 A1429A12
5 A1328A7
6A827A6
7A926A5
8 A1125A4
9OE24A3
10 A1023A2
11 CE22A1
12 Q721A0
13 Q620Q0
14 Q519Q1
15 Q418Q2
16 Q317GND
PGM
CE
OE
CONTROL
OUTPUT
BUFFER
DECODER
CORE
ARRAY
A0
A17
Vcc
GND
Vpp
Q0
Q7
Vpp
A16,A15,A12,A7 - A0
Q0 - Q2
GND
Q3 - Q7
CE
A10
OE
A11,A9,A8,A13,A14,A17
PGM
Vcc
Program/Erase supply voltage
Address inputs
Data inputs/ outputs
Connect to GND
Data inputs/ outputs
Chip enable
Address input
Output enable
Address inputs
Program enable
Power supply
-
I
I/O
-
I/O
-
I
O
I
-
-
Pin No. Symbol I/O Function
1
2 - 12
13 - 15
16
17 - 21
22
23
24
25 - 30
31
32