AT89C51RC-33AC ATMEL Corporation, AT89C51RC-33AC Datasheet - Page 31
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AT89C51RC-33AC
Manufacturer Part Number
AT89C51RC-33AC
Description
8-bit Microcontroller with 32K Bytes Flash
Manufacturer
ATMEL Corporation
Datasheet
1.AT89C51RC-33AC.pdf
(37 pages)
- Current page: 31 of 37
- Download datasheet (247Kb)
External Data Memory Write Cycle
External Clock Drive Waveforms
External Clock Drive
1920B–MICRO–11/02
Symbol
1/t
t
t
t
t
t
CLCL
CHCX
CLCX
CLCH
CHCL
CLCL
0.45V
V
CC
PORT 0
PORT 2
- 0.5V
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
PSEN
ALE
WR
0.2 V
0.7 V
CC
- 0.1V
A0 - A7 FROM RI OR DPL
CC
t
t
CHCX
LHLL
t
AVLL
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
WHQX
t
t
A0 - A7 FROM PCL
CLCL
WHLH
A8 - A15 FROM PCH
Max
33
5
5
t
CHCX
INSTR IN
AT89C51RC
Units
MHz
ns
ns
ns
ns
ns
t
CHCL
31
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