P0.7/EXTINT
P0.6/ECB0
BUSWIDTH
P0.2/ECB1
P0.0/ECB2
P0.1/ECB3
P0.3/ECB4
NMI
ECB5
V
DD
ALE / ADV
62
CLKOUT
XTAL1
INST
63
V
SS
V
SS
2
1
68
67
66
65
64
P0.5
P0.4
V
SS
V
DD
V
SS
EXTINT/P2.2
RESET
RXD/P2.1
TXD/P2.0
P1.0
P1.1
P1.2
PWM1/P1.3
PWM2/P1.4
T2RST/HSI.0
T2CLK/HSI.1
HSI.2/HS0.4
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
61
9
8
7
6
5
4
3
RD
60
59
58
57
56
55
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD8
AD9
AD10
AD11
AD12
AD13
AD14
AD15
P2.3/T2CLK
UT80C196KD
顶视图
54
53
52
51
50
49
48
47
46
45
44
38
39
40
41
42
43
T2CAPTURE/P2.7
PWM0/P2.5
WR / WR L
T2RST/P2.4
BHE / WRH
准备
HS0.0
HS0.1
BR EQ / P1.5
HLDA/P1.6
HOLD/P1.7
T2UP-DN/P2.6
HS0.2
HS0.3
HSI.3/HSO.5
图3. 68引脚四方扁平封装
12
EDACEN
V
SS
