Rainbow-electronics AT89C4051 Manual do Utilizador descarregar pdf (Página 13)

13

AT89C4051

1001D–06/01

External Clock Drive Waveforms

External Clock Drive

Symbol Parameter

V

CC

= 2.7V to 6.0V V

CC

= 4.0V to 6.0V

UnitsMin Max Min Max

1/t

CLCL

Oscillator Frequency 0 12 0 24 MHz

t

CLCL

Clock Period 83.3 41.6 ns

t

CHCX

High Time 30 15 ns

t

CLCX

Low Time 30 15 ns

t

CLCH

Rise Time 20 20 ns

t

CHCL

Fall Time 20 20 ns

1 2 ... 8 9 10 11 12 13 14 15 16 17 18

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