W78E58B_06 Datasheet, PDF (27/36 Pages) Winbond – 8-BIT MICROCONTROLLER

W78E58B/W78E058B
9. TYPICAL APPLICATION CIRCUITS
9.1 Expanded External Program Memory and Crystal
V_DD
10 u
8.2 K
CRYSTAL
C1
C2
31
EA
19 _XTAL1
R _{18 XTAL2}
9 RST
12 ^INT0
13 INT1
14 _T0
15 _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
P2.1
P2.2
P2.3
P2.4
P2.5
21
22
23
24
25
26
A8
A9
A10
A11
A12
A13
P2.6
P2.7
27
28
A14
A15
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
74LS373
A0 10
A1 9
A0
A1
A2 8
A3 7
A4 6
A5 5
A6 4
A7 3
A8 25
A9 24
A10 21
A11 23
A12 2
A13 26
A14 27
A15 1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
GND 20 _CE
O0
O1
O2
11
12
13
AD0
AD1
AD2
O3
O4
O5
O6
15
16
17
18
AD3
AD4
AD5
AD6
O7 ^{19 AD7}
RD ₁₇
WR ¹⁶
22
OE
PSEN
ALE
TXD
29
30
11
27512
RXD ¹⁰
W78E58B/W78E058B
Figure A
CRYSTAL
6 MHz
16 MHz
24 MHz
40MHz
C1
C2
47P
47P
30P
30P
15P
10P
5P
5P
Above table shows the reference values for crystal applications.
Notes:
1. C1, C2, R components refer to Figure A
2. Crystal layout must get close to XTAL1 and XTAL2 pins on user's application board.
R
-
-
-
6.8K
- 27 -
Publication Release Date: December 4, 2006
Revision A8