参数资料
型号: MC68HC705V8B
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP56
封装: SDIP-56
文件页数: 142/172页
文件大小: 890K
代理商: MC68HC705V8B
MOTOROLA
SECTION 7: POWER SUPPLY AND REGULATION
Page 60
MC68HC705V8 Specification Rev. 2.1
bandwidth and effectiveness of the network.
Figure 7-7: HC705V8 Internal Power Routing
1) VDD to VSSD (pins 30 & 31): On-chip regulator output decoupling. As with any regulator,
the output must be adequately decoupled to maintain stability of the regulator. Decouple with
at least 10 uF tantalum or aluminum electrolytic bulk in parallel with 0.1 uF ceramic or polysty-
rene capacitor for high frequency (HF) stability. Locate both capacitors as close as possible to
REXT2
REXT1
V
IGN
V
DD
V
SSD
PD0/AN0
PE0/AN8
PE1/AN9
PE2/AN10
PE3/AN1
1
PD1/AN1
PD2/AN2
V
REFH
V
CCA
V
SSA1
V
REFL
N.C.
IRQ
RST
OSC1
OSC2
V
DD
V
SSD
PWM
PA
7
PA
6
PA
5
PA
4
PA
3
PA
2
PA
1
PA
0
N.C.
PF3/MISO
PF2/MOSI
PF1/SCLK
PF0/SS
PB0
PB1
PB2
PB3
PB4
PB5
PB6/TCMP
PB7/TCAP
VSSA2
LOAD
BUS
VPP
N.C.
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
PE7/AN15
PE6/AN14
PE5/AN13
PE4/AN12
PD7/AN7
PD6/AN6
PD5/AN5
PD4/AN4
PD3/AN3
Regulator
DLC
A/D
R
R ~ 40 ohms
Digital Logic
Blocks
68-pin PLCC package shown
9
8
7
6
5
4
3
2
1
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
F
re
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sc
a
le
S
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ic
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I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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