Rainbow Electronics AT90LS4433 - Manual (Page 100)

100
AT90S/LS4433
1042G–AVR–09/02
External Clock Drive
Waveforms
Figure 69. External Clock
Table 39. 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 0.0 4.0 0.0 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