5962-0051801QXC 查看數據表（PDF） - AIMTEC

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5962-0051801QXC

Rad. Tolerant 8-bit ROMless Microcontroller

AIMTEC 

80C32E

Table 7. External Clock Drive Characteristics (XTAL1)

Symbol

Parameter

Min

Max

Unit

TCLCL

TCHCX

TCLCX

TCLCH

TCHCL

Oscillator Period

High Time

Low Time

Rise Time

Fall Time

33.33

ns

5

ns

5

ns

5

ns

5

ns

Figure 11. External Clock Drive Waveforms

VCC-0.5 V

0.45 V

0.7VCC

0.2VCC-0.1V

TCHCL

TCLCX

TCHCX

TCLCH

TCLCL

Figure 12. AC Testing Input/Output Waveforms

INPUT/OUTPUT

VCC-0.5V

0.45V

0.2VCC+0.9

0.2VCC-0.1

Figure 13. Float Waveforms

AC inputs during testing are driven at VCC - 0.5 for a logic “1” and 0.45V for a logic “0”.

Timing measurement are made at VIH min for a logic “1” and VIL max for a logic “0”.

FLOAT

VOH-0.1V VLOAD

VOL+0.1V

VLOAD+0.1V

VLOAD-0.1V

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.

15

4149M–AERO–06/03

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