at90ls4433 ATMEL Corporation, at90ls4433 Datasheet - Page 100

• Manufacturer Part Number: at90ls4433
• Description: At90s4433 8-bit Avr Microcontroller With 4k Bytes Of In-system Programmable Flash
• Manufacturer: ATMEL Corporation

External Clock Drive
Waveforms
100
AT90S/LS4433
Figure 69. External Clock
Table 39. External Clock Drive
Symbol
1/t
t
t
t
t
t
CLCL
CHCX
CLCX
CLCH
CHCL
CLCL
VIL1
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
VIH1
V
250.0
100.0
100.0
CC
Min
0.0
= 2.7V to 6.0V
Max
4.0
1.6
1.6
V
125.0
CC
50.0
50.0
Min
0.0
= 4.0V to 6.0V
Max
8.0
0.5
0.5
1042H–AVR–04/03
Units
MHz
ns
ns
ns
µs
µs