AT89C51ID2-SMSIM ATMEL [ATMEL Corporation], AT89C51ID2-SMSIM Datasheet - Page 144

• Manufacturer Part Number: AT89C51ID2-SMSIM
• Description: 8-bit Flash Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

144
AT89C51ID2
Table 99. AC Parameters for a Variable Clock
Symbol
T
T
T
T
T
T
T
T
T
T
T
PLPH
LHLL
AVLL
LLAX
PLAZ
LLPL
PLIV
PXIX
PXIZ
AVIV
LLIV
Type
Max
Max
Max
Max
Max
Min
Min
Min
Min
Min
Min
Standard
Clock
2 T - x
4 T - x
3 T - x
3 T - x
5 T - x
T - x
T - x
T - x
T - x
x
x
X2 Clock
0.5 T - x
0.5 T - x
0.5 T - x
1.5 T - x
1.5 T - x
0.5 T - x
2.5 T - x
2 T - x
T - x
x
x
X parameter for
-M range
15
20
20
35
15
25
45
15
45
10
0
X parameter for
-L range
15
20
20
35
15
25
45
15
45
10
0
4289A–8051–09/03
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns