參數(shù)資料
型號: T89C51RD2-DDVCM
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 0 to 40 MHz Flash Programmable 8-bit Microcontroller
中文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, UUC
封裝: DIE
文件頁數(shù): 87/104頁
文件大小: 798K
代理商: T89C51RD2-DDVCM
87
T89C51RD2
4243G
8051
05/03
External Program Memory
Read Cycle
Table 47.
AC Parameters for a Variable Clock
Symbol
Type
Standard Clock
X2 Clock
X parameter for -
M range
X parameter for -
L range
Units
T
LHLL
Min
2 T - x
T - x
10
10
ns
T
AVLL
Min
T - x
0.5 T - x
15
15
ns
T
LLAX
Min
T - x
0.5 T - x
15
15
ns
T
LLIV
Max
4 T - x
2 T - x
30
30
ns
T
LLPL
Min
T - x
0.5 T - x
10
10
ns
T
PLPH
Min
3 T - x
1.5 T - x
20
20
ns
T
PLIV
Max
3 T - x
1.5 T - x
40
40
ns
T
PXIX
Min
x
x
0
0
ns
T
PXIZ
Max
T - x
0.5 T - x
7
7
ns
T
AVIV
Max
5 T - x
2.5 T - x
40
40
ns
T
PLAZ
Max
x
x
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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