AT89S4051 Atmel Corporation, AT89S4051 Datasheet - Page 37

• Manufacturer Part Number: AT89S4051
• Manufacturer: Atmel Corporation

Specifications of AT89S4051

• Flash (kbytes): 4 Kbytes
• Max. Operating Frequency: 24 MHz
• Cpu: 8051-12C
• Max I/o Pins: 15
• Uart: 1
• Sram (kbytes): 0.25
• Operating Voltage (vcc): 2.7 to 5.5
• Timers: 2
• Isp: SPI

42. External Clock Drive Waveforms
43. External Clock Drive
3390E–MICRO–6/08
Symbol
1/t
t
t
t
t
t
CLCL
CHCX
CLCX
CLCH
CHCL
CLCL
Parameter
Clock Period
High Time
Low Time
Rise Time
Fall Time
Frequency
41.6
Min
12
12
0
V
CC
= 2.7V to 5.5V
AT89S2051/S4051
Max
24
5
5
Units
MHz
ns
ns
ns
ns
ns
37