MC68HC705J1A

Manufacturer Part NumberMC68HC705J1A
ManufacturerMotorola
MC68HC705J1A datasheet
 


Specifications of MC68HC705J1A

CaseDIP-20L  
1
2
3
4
5
6
7
8
9
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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
Page 81
82
Page 82
83
Page 83
84
Page 84
85
Page 85
86
Page 86
87
Page 87
88
Page 88
89
Page 89
90
Page 90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
Page 89/162:

Port A

Download datasheet (2Mb)Embed
PrevNext
6.3 Port A
Port A is an 8-bit bidirectional port.
6.3.1 Port A Data Register
The port A data register (PORTA) contains a latch for each port A pin.
Address:
Read:
Write:
Reset:
PA[7:0] — Port A Data Bits
These read/write bits are software programmable. Data direction of
each port A pin is under the control of the corresponding bit in data
direction register A. Reset has no effect on port A data.
MC68HC705J1A — Rev. 4.0
MOTOROLA
$0000
Bit 7
6
5
4
PA7
PA6
PA5
PA4
Unaffected by reset
Figure 6-2. Port A Data Register (PORTA)
Parallel Input/Output (I/O) Ports
Parallel Input/Output (I/O) Ports

Port A

3
2
1
Bit 0
PA3
PA2
PA1
PA0
Technical Data
89