參數(shù)資料
型號(hào): P8C15416Y-12
英文描述: IC-8-BIT CMOS CPU
中文描述: 集成電路8位CMOS處理器
文件頁(yè)數(shù): 22/25頁(yè)
文件大?。?/td> 154K
代理商: P8C15416Y-12
80C32/80C52
22
Rev. I
September 18, 1998
Table 11. External Clock Drive Characteristics (XTAL1)
Symbol
Parameter
Min
Max
Unit
FCLCL
Oscillator Frequency
44
MHz
TCLCL
Oscillator period
22.7
ns
TCHCX
High Time
5
ns
TCLCX
Low Time
5
ns
TCLCH
Rise Time
5
ns
TCHCL
Fall Time
5
ns
Figure 17. External Clock Drive Waveforms
Figure 18. AC Testing Input/Output Waveforms
AC inputs during testing are driven at VCC – 0.5 for a logic “1” and 0.45 V for a logic “0”. Timing measurements are
made at VIH min for a logic “1” and VIL max for a logic “0”.
Figure 19. Float Waveforms
For timing purposes as port pin is no longer floating when a 100 mV change from load voltage occurs and begins to
float when a 100 mV change from the loaded VOH/VOL level occurs. Iol/IoH
±
20 mA.
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