參數(shù)資料
型號: AT83C51RD2-3CSUM
廠商: International Rectifier
英文描述: High Performance 8-bit Microcontroller
中文描述: 高性能8位微控制器
文件頁數(shù): 65/85頁
文件大?。?/td> 762K
代理商: AT83C51RD2-3CSUM
65
4188E–8051–08/06
AT/TS8xC51Rx2
Table 11-7.
AC Parameters for a Variable Clock: derating formula
11.5.3
External Program Memory Read Cycle
Figure 11-6.
External Program Memory Read Cycle
Symbol
Type
Standard
Clock
X2 Clock
-M
-V
-L
Units
T
LHLL
Min
2 T - x
T - x
10
8
15
ns
T
AVLL
Min
T - x
0.5 T - x
15
13
20
ns
T
LLAX
Min
T - x
0.5 T - x
15
13
20
ns
T
LLIV
Max
4 T - x
2 T - x
30
22
35
ns
T
LLPL
Min
T - x
0.5 T - x
10
8
15
ns
T
PLPH
Min
3 T - x
1.5 T - x
20
15
25
ns
T
PLIV
Max
3 T - x
1.5 T - x
40
25
45
ns
T
PXIX
Min
x
x
0
0
0
ns
T
PXIZ
Max
T - x
0.5 T - x
7
5
15
ns
T
AVIV
Max
5 T - x
2.5 T - x
40
30
45
ns
T
PLAZ
Max
x
x
10
10
10
ns
T
TPLAZ
ALE
PSEN
PORT 0
PORT 2
A0-A7
A0-A7
INSTR IN
INSTR IN
INSTR IN
ADDRESS
OR SFR-P2
ADDRESS A8-A15
ADDRESS A8-A15
12 T
CLCL
T
AVIV
T
LHLL
T
AVLL
T
LLIV
T
LLPL
T
PLPH
T
PXAV
T
PXIX
T
PXIZ
T
LLAX
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