AT89C51RB2-RLTCM ATMEL [ATMEL Corporation], AT89C51RB2-RLTCM Datasheet - Page 110

• Manufacturer Part Number: AT89C51RB2-RLTCM
• Description: 8-bit Microcontroller with 16K/ 32K Bytes Flash
• Manufacturer: ATMEL [ATMEL Corporation]

110
AT89C51RB2/RC2
Table 76. AC Parameters for a Fix Clock
Table 77. AC Parameters for a Variable Clock
Symbol
Symbol
T
T
T
T
T
T
T
T
T
T
T
T
PLPH
PLAZ
T
T
T
T
LHLL
AVLL
LLAX
LLPL
T
T
T
T
T
PLIV
PXIX
PXIZ
AVIV
T
LLIV
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
Min
2 T - x
4 T - x
3 T - x
3 T - x
5 T - x
25
35
50
T - x
T - x
T - x
T - x
5
5
5
0
x
x
-M
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
Max
n 65
X Parameter for -
30
10
80
10
M Range
15
20
20
35
15
25
45
15
45
10
0
Min
25
35
50
5
5
5
0
X Parameter for
-L
-L Range
Max
65
30
10
80
10
15
20
20
35
15
25
45
15
45
10
0
4180B–8051–04/03
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns