參數(shù)資料
型號: MC68HC05C9AMB
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP42
封裝: PLASTIC, SDIP-42
文件頁數(shù): 82/162頁
文件大?。?/td> 1093K
代理商: MC68HC05C9AMB
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General Description
Advance Information
MC68HC05C9A Rev. 5.0
26
General Description
MOTOROLA
Figure 1-6. 44-Pin QFP Pin Assignments
NOTE:
If MC68HC705C9A devices are to be used in the same socket, pin 43
should be tied to VDD.
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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