GMS90X5XC Series

HYUNDAI MicroElectronics

VCC0.5V 0.2VCC + 0.9

Test Points

0.2VCC 0.1

0.45V

AC Inputs during testing are driven at VCC0.5V for a logic ‘1’ and 0.45V for a logic ‘0’. Timing measurements are made a VIHmin for a logic ‘1’ and VILmax for a logic ‘0’.

Figure 9. AC Testing: Input, Output Waveforms

 

VLOAD + 0.1

 

 

 

 

 

VOH 0.1

VLOAD

 

 

Timing Reference Points

 

 

 

 

 

 

 

 

 

 

 

VLOAD 0.1

 

 

0.2VCC 0.1

 

 

VOL + 0.1

 

 

 

 

For timing purposes a port pin is no longer floating when a 100mV change from load voltage occurs and begins to float when a 100mV change from the loaded VOH / VOL level occurs.

IOL / IOH 20mA.

Figure 10. Float Waveforms

VCC0.5V

0.7 VCC

0.2 VCC 0.1

0.45V

tCLCL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tCHCX

 

 

 

 

 

 

 

 

 

 

 

tCLCX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tCHCLtCLCH

Figure 11. External Clock Cycle

Jan. 2001 Ver 1.0

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Hyundai GMS90X51C, GMS90X52C, GMS90X54C user manual AC Testing Input, Output Waveforms