External clock drive waveforms – Rainbow Electronics AT90LS8535 User Manual

Page 106

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106

AT90S/LS8535

1041H–11/01

External Clock Drive
Waveforms

Figure 74. External Clock

Table 46. External Clock Drive

Symbol

Parameter

V

CC

= 2.7V to 6.0V

V

CC

= 4.0V to 6.0V

Units

Min

Max

Min

Max

1/t

CLCL

Oscillator Frequency

0

4

0

8.0

MHz

t

CLCL

Clock Period

250.0

125.0

ns

t

CHCX

High Time

100.0

50.0

ns

t

CLCX

Low Time

100.0

50.0

ns

t

CLCH

Rise Time

1.6

0.5

µs

t

CHCL

Fall Time

1.6

0.5

µs

VIL1

VIH1

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