AT89C51RC2-3CSCM 查看數據表（PDF） - Atmel Corporation
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AT89C51RC2-3CSCM Datasheet PDF : 127 Pages
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AT89C51RB2/RC2
Symbol
TRLRH
TWLWH
TRLDV
TRHDX
TRHDZ
TLLDV
TAVDV
TLLWL
TLLWL
TAVWL
TQVWX
TQVWH
TWHQX
TRLAZ
TWHLH
TWHLH
Type
Min
Min
Max
Min
Max
Max
Max
Min
Max
Min
Min
Min
Min
Max
Min
Max
Standard
Clock
6T-x
6T-x
5T-x
x
2T-x
8T-x
9T-x
3T-x
3T+x
4T-x
T-x
7T-x
T-x
x
T-x
T+x
X2 Clock
3T-x
3T-x
2.5 T - x
x
T-x
4T -x
4.5 T - x
1.5 T - x
1.5 T + x
2T-x
0.5 T - x
3.5 T - x
0.5 T - x
x
0.5 T - x
0.5 T + x
X Parameter for - X Parameter for -
M Range
L Range
25
25
25
25
30
30
0
0
25
25
45
45
65
65
30
30
30
30
30
30
20
20
20
20
15
15
0
0
20
20
20
20
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
External Data Memory Write
Cycle
ALE
PSEN
WR
PORT 0
PORT 2
ADDRESS
OR SFR-P2
TWHLH
TLLWL
TWLWH
TLLAX
A0-A7
TAVWL
TQVWX
TQVWH
DATA OUT
ADDRESS A8-A15 OR SFR P2
TWHQX
4180E–8051–10/06
115
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