SAKC505CA-4EM 查看數據表（PDF） - Siemens AG

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SAKC505CA-4EM

8-Bit CMOS Microcontroller

Siemens AG 

C505 / C505C

C505A / C505CA

VCC -0.5 V

0.2 VCC+0.9

Test Points

0.45 V

0.2 VCC -0.1

MCT00039

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 41

AC Testing: Input, Output Waveforms

VLoad

VLoad +0.1 V

Timing Reference

Points

VOH -0.1 V

VLoad -0.1 V

VOL +0.1 V

MCT00038

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 42

AC Testing : Float Waveforms

Crystal Oscillator Mode

C

XTAL2

2 - 20

MHz

C

XTAL1

Driving from External Source

N.C.

XTAL2

External Oscillator

Signal

XTAL1

Crystal Mode: C = 20 pF 10 pF (incl. stray capacitance)

MCS03311

Figure 43

Recommended Oscillator Circuits for Crystal Oscillator

Semiconductor Group

84

1997-12-01

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