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MC908AP32CFAE 参数 Datasheet PDF下载

MC908AP32CFAE图片预览
型号: MC908AP32CFAE
PDF下载: 下载PDF文件 查看货源
内容描述: [MC908AP32CFAE]
分类和应用:
文件页数/大小: 325 页 / 4102 K
品牌: FREESCALE [ Freescale ]
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Pin Functions  
1.5 Pin Functions  
Description of the pin functions are provided in Table 1-2.  
Table 1-2. Pin Functions  
VOLTAGE  
LEVEL  
PIN NAME  
PIN DESCRIPTION  
IN/OUT  
4.5 to 5.5  
or  
2.7 to 3.3  
VDD  
In  
Power supply.  
VSS  
VDDA  
VSSA  
VREFH  
VREFL  
Out  
In  
0V  
VDD  
VSS  
Power supply ground.  
Power supply for analog circuits.  
Power supply ground for analog circuits.  
ADC input reference high.  
Out  
In  
VDDA  
VSSA  
Out  
ADC input reference low.  
Internal (2.5V) regulator output.  
Require external capacitors for decoupling.  
2.5V(1)  
VDD  
VREG  
RST  
Out  
In  
Reset input, active low; with internal pullup and schmitt  
trigger input.  
External IRQ1 pin; with internal pullup and schmitt trigger  
input.  
VDD  
In  
IRQ1  
VDD to VTST  
VREG  
In  
In  
Used for mode entry selection.  
Crystal or RC oscillator input.  
OSC1  
Crystal OSC option: crystal oscillator output; inverted  
OSC1.  
VREG  
Out  
OSC2  
VREG  
VREG  
Out  
Out  
RC OSC option: bus clock output.  
Internal OSC option: bus clock output.  
CGM external filter capacitor connection.  
8-bit general purpose I/O port.  
CGMXFC  
In/Out  
In/Out  
In  
Analog  
VDD  
PTA0/ADC0  
VREFH  
VDD  
:
Pins as ADC inputs, ADC0–ADC7.  
Each pin has high current sink for LED.  
PTA7/ADC7  
Out  
MC68HC908AP Family Data Sheet, Rev. 4  
Freescale Semiconductor  
25