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68HC912DG128PV8 参数 Datasheet PDF下载

68HC912DG128PV8图片预览
型号: 68HC912DG128PV8
PDF下载: 下载PDF文件 查看货源
内容描述: M68HC12微控制器 [M68HC12 Microcontrollers]
分类和应用: 微控制器外围集成电路时钟
文件页数/大小: 452 页 / 3509 K
品牌: FREESCALE [ Freescale ]
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Freescale Semiconductor, Inc.  
Electrical Specifications  
Tables of Data  
Table 19-7. ATD AC Characteristics (Operating)  
V
DD = 5.0 Vdc ±10%, VSS = 0 Vdc, TA = TL to TH, ATD Clock = 2 MHz, unless otherwise noted  
Characteristic  
Symbol  
Min  
2.0  
0.5  
Max  
8.0  
2.0  
Unit  
MHz  
MHz  
fPCLK  
MCU clock frequency (p-clock)  
ATD operating clock frequency  
fATDCLK  
ATD 8-Bit conversion period  
clock cycles(1)  
nCONV8  
tCONV8  
18  
9
32  
16  
cycles  
µs  
conversion time(2)  
ATD 10-Bit conversion period  
clock cycles(1)  
nCONV10  
tCONV10  
20  
10  
34  
17  
cycles  
µs  
conversion time(2)  
Stop and ATD power up recovery time(3)  
VDDA = 5.0V  
tSR  
10  
µs  
1. The minimum time assumes a final sample period of 2 ATD clock cycles while the maximum time assumes a final sample  
period of 16ATD clocks.  
2. This assumes an ATD clock frequency of 2.0MHz.  
3. From the time ADPU is asserted until the time an ATD conversion can begin.  
Table 19-8. ATD Maximum Ratings  
Characteristic  
Symbol  
Value  
Units  
ATD reference voltage  
V
RH VDDA  
VRH  
VRL  
0.3 to +6.5  
0.3 to +6.5  
V
V
VRL VSSA  
V
SS differential voltage  
DD differential voltage  
|VSSVSSA|  
0.1  
V
VDDVDDA  
DDAVDD  
6.5  
0.3  
V
V
V
V
VREF differential voltage  
Reference to supply differential voltage  
|VRHVRL  
|
6.5  
6.5  
V
V
|VRHVDDA  
|
MC68HC912DG128 — Rev 3.0  
Technical Data  
Electrical Specifications  
For More Information On This Product,  
Go to: www.freescale.com  
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