AT89S51-24JU SL383 Atmel, AT89S51-24JU SL383 Datasheet - Page 25
AT89S51-24JU SL383
Manufacturer Part Number
AT89S51-24JU SL383
Description
Manufacturer
Atmel
Datasheet
1.AT89S51-24JU_SL383.pdf
(31 pages)
- Current page: 25 of 31
- Download datasheet (473Kb)
27. External Data Memory Write Cycle
28. External Clock Drive Waveforms
29. External Clock Drive
2487D–MICRO–6/08
Symbol
1/t
t
t
t
t
t
CLCL
CHCX
CLCX
CLCH
CHCL
CLCL
0.45V
PORT 0
PORT 2
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
V
PSEN
CC
ALE
WR
- 0.5V
0.2 V
0.7 V
A0 - A7 FROM RI OR DPL
CC
t
LHLL
t
- 0.1V
AVLL
CC
t
CHCX
P2.0 - P2.7 OR A8 - A15 FROM DPH
t
AVWL
t
LLAX
t
QVWX
t
LLWL
Min
t
DATA OUT
CLCX
30
12
12
t
0
t
QVWH
t
WLWH
CLCH
t
CLCL
t
WHQX
t
A0 - A7 FROM PCL
WHLH
A8 - A15 FROM PCH
t
CHCX
Max
33
5
5
INSTR IN
AT89S51
t
CHCL
Units
MHz
ns
ns
ns
ns
ns
25
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