AT89C4051-24PI Atmel, AT89C4051-24PI Datasheet - Page 13

• Manufacturer Part Number: AT89C4051-24PI
• Description: IC MICRO CTRL 24MHZ 20DIP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C4051-24PI

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, LED, POR
• Number Of I /o: 15
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

18. External Clock Drive Waveforms
19. External Clock Drive
1001F–MICRO–6/08
Symbol
1/t
t
t
t
t
t
CLCL
CHCX
CLCX
CLCH
CHCL
CLCL
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
83.3
Min
30
30
0
V
CC
= 2.7V to 6.0V
Max
12
20
20
41.6
Min
15
15
0
V
CC
= 4.0V to 6.0V
AT89C4051
Max
24
20
20
Units
MHz
ns
ns
ns
ns
ns
13