80C196EA Datasheet, PDF (40/46 Pages) Intel Corporation – CHMOS 16-BIT MICROCONTROLLER

8xC196EA — AUTOMOTIVE
6.8 External Clock Drive
Table 16. External Clock Drive
Symbol
Parameter
Min
Max
Units
1/T_XLXL
Oscillator Frequency (F_XTAL1)
10
40 (1)
MHz (2)
T_XLXL
Oscillator Period (T_XTAL1)
25
100
ns
T_XHXX
High Time
0.35T_XTAL1
0.65T_XTAL1
ns
T_XLXX
Low Time
0.35T_XTAL1
0.65T_XTAL1
ns
T_XLXH
Rise Time
10
ns
T_XHXL
Fall Time
10
ns
NOTES:
1. 20 MHz is the maximum input frequency when using an external crystal oscillator; however, 40 MHz
can be applied with an external clock source.
2. These values represent PLL-bypass mode.
XTAL1
T_XHXX
0.7 V_CC + 0.5 V
T_XLXH
T_XLXX
0.3 V_CC – 0.5 V
0.7 V_CC + 0.5 V
0.3 V_CC – 0.5 V
T_XLXL
Figure 11. External Clock Drive Waveforms
T_XHXL
A2119-03
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