AT89S52-33AC ATMEL Corporation, AT89S52-33AC Datasheet - Page 26
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AT89S52-33AC
Manufacturer Part Number
AT89S52-33AC
Description
8-bit Microcontroller with 8K Bytes In-System Programmable Flash
Manufacturer
ATMEL Corporation
Datasheet
1.AT89S52-33AC.pdf
(30 pages)
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External Data Memory Write Cycle
External Clock Drive Waveforms
External Clock Drive
26
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
AT89S52
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
30
12
12
CLCX
t
0
t
QVWH
WLWH
t
CLCH
t
CLCL
t
WHQX
t
A0 - A7 FROM PCL
WHLH
A8 - A15 FROM PCH
t
CHCX
Max
33
5
5
INSTR IN
t
CHCL
Units
MHz
ns
ns
ns
ns
ns