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SN8A1704A 参数 Datasheet PDF下载

SN8A1704A图片预览
型号: SN8A1704A
PDF下载: 下载PDF文件 查看货源
内容描述: 8位微控制器 [8-Bit Micro-Controller]
分类和应用: 微控制器
文件页数/大小: 145 页 / 774 K
品牌: SONIX [ SONIX TECHNOLOGY COMPANY ]
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SN8P1700  
8-bit micro-controller build-in 12-bit ADC  
7OSCILLATORS  
OVERVIEW  
The SN8P1700 highly performs the dual clock micro-controller system. The dual clocks are high-speed clock and  
low-speed clock. The high-speed clock frequency is supplied through the external oscillator circuit. The low-speed  
clock frequency is supplied through on-chip RC oscillator circuit.  
The external high-speed clock and the internal low-speed clock can be system clock (Fosc). And the system clock is  
divided by 4 to be the instruction cycle (Fcpu).  
Fcpu = Fosc / 4  
The system clock is required by the following peripheral modules:  
Basic timer (T0)  
Timer counter 0 (TC0)  
Timer counter 1 (TC1)  
Watchdog timer  
Serial I/O interface (SIO)  
AD converter  
PWM output (PWM0, PWM1)  
Buzzer output (TC0OUT, TC1OUT)  
CLOCK BLOCK DIAGRAM  
HXRC(1:0) is code option  
•00= RC  
•01 =32 Khz Oscillator  
•10 = High Speed Oscillator (>10Mhz)  
•11 = Standard Oscillator (4Mhz)  
Divided by 2  
1 : Disable  
0 : Enable  
STPHX HXRC  
CLKMD  
fosc/4  
CPUM0  
XIN  
XOUT  
HXOSC.  
OSG  
Divided by 2  
fcpu  
Divided by 4  
fh  
fl  
OSG : Oscillator Safe Guard  
1 : Disable -- System Default  
0 : Enable  
CPUM0  
LXOSC.  
CPUM0  
Figure 7-1. Clock Block Diagram  
HXOSC: External high-speed clock.  
LXOSC: Internal low-speed clock.  
OSG: Oscillator safe guard.  
SONiX TECHNOLOGY CO., LTD  
Page 58  
Revision 1.94  
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