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UT80C196 数据表(PDF) 34 Page - Aeroflex Circuit Technology

部件名 UT80C196
功能描述  UT80C196KD Microcontroller
PDF  42 Pages
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制造商  AEROFLEX [Aeroflex Circuit Technology]
网页  http://www.aeroflex.com
标志 AEROFLEX - Aeroflex Circuit Technology

UT80C196 数据表(HTML) 34 Page - Aeroflex Circuit Technology

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UT80C196KD
XTAL1
External Clock
Input
Figure 9. External Clock Connections
V
DD
0.0V
1.4V
1.4V
TEST POINTS
AC Testing inputs are driven at V
DD for a Logic “1” and 0.0V for a Logic “0”. Timing measure-
ments are made at 1.4V.
Figure 10. AC Testing Input, Output Waveforms
VLOAD
For timing purposes a port pin is no longer floating when it changes to a voltage outside the ref-
erence points shown and begins to float when it changes to a voltage inside the reference points
shown. IOL = 4mA, IOH = -4mA.
VOL + 0.5V
VOH - 0.5V
V
OL + 0.5V
VOH - 0.5V
TIMING REFERENCE
POINTS
Figure 11. Float Waveforms



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