參數(shù)資料
型號(hào): MSM80C40
廠商: OKI SEMICONDUCTOR CO., LTD.
元件分類(lèi): 8位微控制器
英文描述: CMOS 8-Bit Microcontroller
中文描述: 的CMOS 8位微控制器
文件頁(yè)數(shù): 28/39頁(yè)
文件大?。?/td> 355K
代理商: MSM80C40
28/38
Semiconductor
MSM80C31F/80C51F
External Program Memory Access AC Characteristics 2
(V
CC
= 2.5 to 4.0 V, V
SS
= 0 V, Ta = –40
°
C to +85
°
C; Load Capacitance for Port 0, ALE, and
PSEN
= 100 pF ; Load Capacitance for all other outputs = 80 pF)
Parameter
Symbol
Min.
126
43
Max.
Unit
XTAL1, XTAL2 Oscillation Cycle
ALE Signal Width
Adderss Setup Time
(to ALE Falling Edge)
Adderss Hold Time
(from ALE Falling Edge)
Instruction Data Read Time
(from ALE Falling Edge)
From ALE Falling Edge to
PSEN
Falling Edge
PSEN
Signal Width
Instruction Data Read Time
(from
PSEN
Falling Edge)
Instruction Data Hold Time
(from
PSEN
Rising Edge)
Bus Floating Time after Instruction
Data Read (from
PSEN
Rising Edge)
Address Output Time from
PSEN
Rising Edge
Instruction Data Read Time
(from Address Output)
Bus Floating Time (Address
Float from
PSEN
Falling Edge)
t
CLCL
t
LHLL
t
AVLL
ns
ns
ns
Max.
Min.
83.3
2t
CLCL
– 40
1t
CLCL
– 40
t
LLAX
48
ns
1t
CLCL
– 35
t
LLIV
4t
CLCL
– 100
ns
233
t
LLPL
58
ns
1t
CLCL
– 25
t
PLPH
t
PLIV
215
ns
ns
145
3t
CLCL
– 35
3t
CLCL
– 105
t
PXIX
0
ns
0
t
PXIZ
1t
CLCL
– 20
ns
63
t
PXAV
75
ns
1t
CLCL
– 8
t
AVIV
5t
CLCL
– 105
ns
312
t
PLAZ
0
ns
0
12 MHz Clock
Variable Clock
See Guaranteed
Operating Range
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