SAB80C515A Datasheet, PDF (57/57 Pages) Siemens Semiconductor Group – 8-Bit CMOS Single-Chip Microcontroller

SAB 80C515A/83C515A-5
AC Inputs during testing are driven at V_CC − 0.5 V for a logic ’1’ and 0.45 V for a logic ’0’. Timing measure-
ments are made at V_IHmin for a logic ’1’ and V_ILmax for a logic ’0’.
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 V _OH/V _OL level occurs. I_OL/I_OH ≥ ± 20 mA.
AC Testing: Float Waveforms
Recommended Oscillator Circuits
Semiconductor Group
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