參數(shù)資料
型號(hào): MC68HC05P4ADWR3
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封裝: PLASTIC, SOIC-28
文件頁(yè)數(shù): 14/102頁(yè)
文件大?。?/td> 930K
代理商: MC68HC05P4ADWR3
General Description
Pin Assignments
MC68HC05P4A — Rev. 6.0
Advance Information
MOTOROLA
General Description
19
1.6 Pin Assignments
The MC68HC05P4A pin assignments are shown in Figure 1-2.
Figure 1-2. Pin Assignments
1.7 Signal Description
The following paragraphs provide a description of the signals.
1.7.1 VDD and VSS
Power is supplied to the microcontroller through VDD and VSS.VDD is the
power supply and VSS is ground.
1.7.2 IRQ
This pin has a mask option that provides two different choices of
interrupt triggering sensitivity. The IRQ pin contains an internal Schmitt
1
2
3
4
5
6
7
8
9
10
11
12
13
14
27
28
VDD
OSC1
OSC2
TCAP/PD7
TCMP
PD5
PC0
PC1
RESET
IRQ
PA7
PA5
PA4
PA3
PA2
PA1
PA0
PA6
15
16
17
18
19
20
SDO/PB5
SDI/PB6
SCK/PB7
VSS
21
22
23
24
25
26
PC2
PC3
PC4
PC5
PC6
PC7
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