W78C32C_06 Datasheet, PDF (14/18 Pages) Winbond – 8-BIT MICROCONTROLLER

W78C32C/W78C032C
8. TYPICAL APPLICATION CIRCUIT
8.1 Using External Program Memory and Crystal
V_CC
10 u
8.2 K
CRYSTAL
C1
C2
31 _EA
19 _XTAL1
R _{18 XTAL2}
9 RST
12 ^INT0
13 _INT1
14
15
T0
T1
1 P1.0
2 P1.1
3 P1.2
4 P1.3
5 P1.4
6 P1.5
7 P1.6
8 P1.7
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
39 AD0
38 AD1
37 AD2
36 AD3
35 AD4
34 AD5
33 AD6
32 AD7
P2.0 ^{21 A8}
P2.1 ^{22 A9}
AD0 3 _{D0 Q0} 2 A0
AD1 4 D1 Q1 5 ^A1
AD2 7 D2 Q2 6 ^A2
AD3 8 D3 Q3 9 A3
AD4 13 D4 Q4 12 ^A4
AD5 14 D5 Q5 15 ^A5
AD6 17 D6 Q6 16 ^A6
AD7 18 D7 Q7 19 A7
GND 1 _OC
11 _G
A0 10 _A0
A1 9 _A1
A2 8
A3 7
A4 6
A5 5
A6 4
A7 3
A8 25
A9 24
A10 21
A2
A3
A4
A5
A6
A7
A8
A9
A10
O0
O1
O2
11
12
13
AD0
AD1
AD2
O3 ^{15 AD3}
O4 ^{16 AD4}
O5
O6
17
18
AD5
AD6
O7 ^{19 AD7}
P2.2
P2.3
P2.4
23
24
25
A10
A11
A12
P2.5 ^{26 A13}
74LS373
A11 23 _A11
A12 2
A13 26
A14 27
A12
A13
A14
P2.6 ^{27 A14}
A15 1 _A15
P2.7 ^{28 A15}
RD ₁₇
WR ¹⁶
GND _{20 CE}
22 _OE
PSEN
ALE
TXD
29
30
11
10
27512
RXD
W78C32C/W78C032C
Figure A
CRYSTAL
16 MHz
24 MHz
33 MHz
40 MHz
C1
C2
30P
30P
15P
15P
10P
10P
5P
5P
Above table shows the reference values for crystal applications.
Note: C1, C2, R components refer to Figure A.
R
-
-
6.8K
6.8K
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