W78E054D Datasheet, PDF (77/89 Pages) List of Unclassifed Manufacturers – 8-bit microcontroller

W78E054D/W78E052D Data Sheet
21.3 Internal Program Memory and Oscillator for EFT application
VCC
10K
C19
CRY STAL
C18
VCC
10uF
8.2K
R
RST
31 _EA
19 _XTAL1
18 _XTAL2
P0.0
P0.1
P0.2
39
38
37
36
P0.3 ₃₅
P0.4
P0.5
P0.6
P0.7
34
33
32
9
RST
12
13
14
15
P3.2/INT0
P3.3/INT1
P3.4/T0
P3.5/T1
1
2
3
4
5
6
P1.0/T2
P1.1/T2EX
P1.2
P1.3
P1.4
7
8
P1.5
P1.6
P1.7
21
P2.0 ₂₂
P2.1
P2.2
P2.3
P2.4
P2.5
23
24
25
26
27
P2.6 ₂₈
P2.7
WR/P3.6
RD/P3.7
16
17
29
PSEN
ALE
TXD/P3.1
RXD/P3.0
30
11
10
W78I054DDG-40DIP
W78I052DDG-40DIP
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
A8
A9
A10
A11
A12
A13
A14
A15
/WR
/RD
ALE
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
3
4
7
8
D0
D1
D2
13 ^D3
14
17
18
D4
D5
D6
D7
Q0
Q1
Q2
2
5
6
9
A0
A1
A2
A3
Q3 ₁₂
A4
Q4
Q5
Q6
Q7
15
16
19
A5
A6
A7
1
11 ^OC
G
74373
Figure C
21.4 Reference Value of XTAL
CRYSTAL
6 MHz
16 MHz
24 MHz
32 MHz
40 MHz
C1
C2
68P
68P
47P
47P
20P
20P
10P
10P
5P
5P
Above table shows the reference values for crystal applications.
A0
A1
A2
A3
12
11
10
9
A0
A1
A2
A4
8 ^A3
A5
A6
A7
A8
A9
7
6
5
27
26
A4
A5
A6
A7
A8
A10 23 ^A9
A11
A12
A13
A14
A15
25
4
28
3
31
A10
A11
A12
A13
A14
A15
D0
D1
D2
13
14
15
17
AD0
AD1
AD2
AD3
D3 _{18 AD4}
D4
D5
D6
D7
19
20
21
AD5
AD6
AD7
22
CS1
CS2
OE
WE
30
24
29
VCC
64KB RAM
R
-
-
-
6.8K
4.7K
Notes:
1. C1, C2, R components refer to Figure A,C
2. Crystal layout must get close to XTAL1 and XTAL2 pins on user's application board.
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Publication Release Date: Jun 9, 2015
Revision A13