单片机最小系统pcb设计
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C
D
D C
B
A Ti tle
Nu m er Rev ion
S ze C Date:4-J un 01S hee t o f
F le:
C:\Do cume ts and S et tin gs \Ad m in tra to 桌面\My Des n.d db Drawn By EA/VP X1X2RES E T RD WR INT0INT1T0T1P 10P 11P 12P 13P 14P 15P 16P 17P 00P 01P 02P 03P 04P 05P 06P 07P 20P 21P 22P 23P 24P 25P 26P 27
P SEN
ALE/P TXD RX D U?
03D0Q0D1Q1D2Q2D3Q3D4Q4D5Q5D6Q6D7Q7
OE LE U?4H C37D0D1D2D3D4D5D6D7
A0A1A2A3A4A5A6
A7
A8A9A1A1A1A1A1A1D0Q0D1Q1D2Q2D3Q3D4Q4D5Q5D6Q6D7Q7
OE LE U?
4H C37WR
组合逻辑电路
LE
R?RES R?RES R?RES R?RES R?RES R?RES R?RES R?RES D?LE D
D?LE D
D?LE D
D?LE D
D?LE D
D?LE D
D?LE D
D?LE D
VC C
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B
C
D
D C
B
A Ti tle
Nu m er Rev ion
S ze C Date:4-J un 01S hee t o f
F le:
C:\Do cume ts and S et tin gs \Ad m in tra to 桌面\My Des n.d db Drawn By EA/VP X1X2RES E T RD WR INT0INT1T0T1P 10P 11P 12P 13P 14P 15P 16P 17P 00P 01P 02P 03P 04P 05P 06P 07P 20P 21P 22P 23P 24P 25P 26P 27
P SEN
ALE/P TXD RX D U?
03D0Q0D1Q1D2Q2D3Q3D4Q4D5Q5D6Q6D7Q7
OE LE U?4H C37D0D1D2D3D4D5D6D7
A0A1A2A3A4A5A6
A7
A8A9A1A1A1A1A1A1D0Q0D1Q1D2Q2D3Q3D4Q4D5Q5D6Q6D7Q7
OE LE U?
4H C37WR
组合逻辑电路
LE
R?RES R?RES R?RES R?RES R?RES R?RES R?RES R?RES D?LE D
D?LE D
D?LE D
D?LE D
D?LE D
D?LE D
D?LE D
D?LE D
VC C
存储器扩展
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D C
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Ti tle
Nu m b er Rev ion
S ze B Date:24-J un 2013
S hee t o f F le:
F :\单片机课堂例程新建文件夹 (2)\存储器扩展.d db
Drawn By EA/VP 31
X119X218
RES E T 9
RD 17WR 16
INT012INT113T014T115P 101P 112P 123P 134P 145P 156P 167
P 178P 0039P 0138P 0237P 0336P 0435P 0534P 0633P 0732P 2021P 2122P 2223P 2324P 2425P 2526P 2627P 27
28
P SEN
29
ALE/P 30TXD 11RX D 10U?
8031
D03Q02D14Q15D27Q26D38Q39D413Q412D514Q515D617Q616D718Q7
19
OE 1LE 11
U?74A L S 373A0A1A2A3A4A5A6A7
A8A9A10A11A12A13A14A15
D0
D1D2D3D4D5D6D7A010A19A28A37A46A55A64A73A825A924A1021A1123A122
CE 20OE 22P GM 27VP P 1
D011D112D213D315D416D517D618D7
19
U?2764
VC C
Y?
6.0MH z
C?20P
C?20P
C?
105
R?100K
D?1N4148
VC C
A010A19A28
A37A46A55A64A73A825A924A1021A1123A122CS 120
CS 226WE 27OE 22D011D112D213D315D416D517D618D7
19
U?
6264
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A
B
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54321D C
B
A
Ti tle
Nu m b er Rev ion
S ze B Date:24-J un 2013
S hee t o f F le:
F :\单片机课堂例程新建文件夹 (2)\存储器扩展.d db
Drawn By EA/VP 31
X119X218
RES E T 9
RD 17WR 16
INT012INT113T014T115P 101P 112P 123P 134P 145P 156P 167
P 178P 0039P 0138P 0237P 0336P 0435P 0534P 0633P 0732P 2021P 2122P 2223P 2324P 2425P 2526P 2627P 27
28
P SEN
29
ALE/P 30TXD 11RX D 10U?
8031
D03Q02D14Q15D27Q26D38Q39D413Q412D514Q515D617Q616D718Q7
19
OE 1LE 11
U?74A L S 373A0A1A2A3A4A5A6A7
A8A9A10A11A12A13A14A15
D0
D1D2D3D4D5D6D7A010A19A28A37A46A55A64A73A825A924A1021A1123A122
CE 20OE 22P GM 27VP P 1
D011D112D213D315D416D517D618D7
19
U?2764
VC C
Y?
6.0MH z
C?20P
C?20P
C?105
R?100K
D?1N4148
VC C
A010A19A28
A37A46A55A64A73A825A924A1021A1123A122CS 120
CS 226WE 27OE 22D011D112D213D315D416D517D618D7
19
U?
6264
此图为矢量图，可以放大。