MC68HC705V12CFN MOTOROLA [Motorola, Inc], MC68HC705V12CFN Datasheet - Page 28
MC68HC705V12CFN
Manufacturer Part Number
MC68HC705V12CFN
Description
The Motorola microcontroller
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC705V12CFN.pdf
(248 pages)
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General Description
1.7 Functional Pin Descriptions
1.7.1 V
Advance Information
28
DD
and V
SSD
The pinout for the MC68HC705V12 is shown in
followed by a functional description of each pin.
These pins provide power to all the microcontroller’s digital circuits. The
short rise and fall times of the MCU supply current transients place very
high short-duration current demands on the internal power supply. To
prevent noise problems, special care should be taken to provide good
power supply bypassing at the MCU by using bypass capacitors with
good high-frequency characteristics that are positioned as close to the
PB4/PWMA
PB5/PWMB
PB6/TCMP
PB7/TCAP
PB2/MOSI
PB3/MISO
PB1/SCK
MINB2+
MINB2–
PB0/SS
MINB1
V
V
RXP
I
TXP
V
MAX
SSD
SSG
DD
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
General Description
27
9
28
8
Figure 1-2. Pin Assignments
29 30
7
(68-Pin PLCC Package)
6
5
31
4
32
3
33
2
34
35
1 68 67 66 65 64 63 62 61
36
37
38
39
MC68HC705V12
Figure 1-2
40
41
42
43
10
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
and is
MOTOROLA
—
Rev. 3.0
PC3
PC2
PC1
PC0
V
V
PD4/AD4
PD3/AD3
PD2/AD2
PD1/AD1
PD0/AD0
V
V
MIND1
MIND2+
MIND2–
V
REFH
REFL
CCA
SSA
SSG
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