C509-L 查看數據表（PDF） - Siemens AG

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C509-L

8-Bit CMOS Microcontroller

Siemens AG 

C509-L

AC Inputs during testing are driven at VCC - 0.5 V for a logic ’1’ and 0.45 V for a logic ’0’.

Timing measurements are made at VIHmin for a logic ’1’ and VILmax for a logic ’0’.

Figure 40

AC Testing: Input, Output Waveforms

For timing purposes a 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

Figure 41

AC Testing: Float Waveforms

Figure 42

Recommended Oscillator Circuits for Crystal Oscillators up to 16 MHz

Semiconductor Group

73

09.96

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