AT89C2051X2 ATMEL [ATMEL Corporation], AT89C2051X2 Datasheet - Page 13

• Manufacturer Part Number: AT89C2051X2
• Description: 8-bit Microcontroller with 2K Bytes Flash
• Manufacturer: ATMEL [ATMEL Corporation]

External Clock Drive Waveforms
External Clock Drive
Symbol
1/t
t
t
t
t
t
t
CLCL
CHCX
CLCX
CLCH
CHCL
CHCX
CLCL
/t
CLCX
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Cyclic Ratio (duty cycle)
12.5
Min
45
45
40
0
V
CC
= 2.7V to 6.0V
Max
10
10
60
8
62.5
22.5
22.5
Min
40
0
V
CC
= 4.0V to 6.0V
Max
16
10
10
60
Units
MHz
ns
ns
ns
ns
ns
%
13