参数资料
型号: MC68HC05C9EFB
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封装: QFP-44
文件页数: 62/144页
文件大小: 1628K
代理商: MC68HC05C9EFB
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General Description
Advance Information
MC68HC05C9E
24
General Description
MOTOROLA
Figure 1-4. 44-Pin QFP Pin Assignments
1.6.1 VDD and VSS
Power is supplied to the MCU using these two pins. VDD is the positive
supply and VSS is ground.
1.6.2 IRQ
This interrupt pin has an option that provides two different choices of
interrupt triggering sensitivity. The IRQ pin contains an internal Schmitt
trigger as part of its input to improve noise immunity. Refer to Section 4.
Interrupts for more detail.
33
32
31
30
29
28
27
26
25
24
23
PC3
PC2
PC1
PC0
PD0/RDI
PD1/TDO
PD2/MISO
PD3/MOSI
PD4/SCK
PD5/SS
TCMP
1
2
3
4
5
6
7
8
9
10
11
22
21
20
19
18
17
16
15
14
13
12
44
43
42
41
40
38
37
36
35
34
PD
7
PC
4
PC
5
PC
6
PC
7
V
SS
N/
C
PB7
PB6
PB5
PB4
TC
A
P
OSC
2
OSC
1
V
DD
N/
C
N/
C
R
E
SET
IR
Q
N/
C
PA
7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
PB0
PB1
PB2
PB3
39
N/
C
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