AT89C52-20QC Atmel, AT89C52-20QC Datasheet - Page 19
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AT89C52-20QC
Manufacturer Part Number
AT89C52-20QC
Description
Microcontrollers (MCU) Microcontroller
Manufacturer
Atmel
Datasheet
1.AT89C52-24AC.pdf
(24 pages)
Specifications of AT89C52-20QC
Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
8 KB
Data Ram Size
256 B
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
32
Number Of Timers
3
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Package / Case
PQFP-44
Minimum Operating Temperature
0 C
Lead Free Status / Rohs Status
No
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
External Program Memory Read Cycle
External Data Memory Read Cycle
PORT 0
PORT 2
PORT 0
PORT 2
PSEN
PSEN
ALE
ALE
RD
A0 - A7 FROM RI OR DPL
t
LHLL
t
AVLL
t
AVLL
P2.0 - P2.7 OR A8 - A15 FROM DPH
t
LHLL
t
AVWL
t
LLAX
t
A0 - A7
AVDV
t
LLAX
t
LLWL
t
t
RLAZ
LLPL
t
t
LLDV
AVIV
A8 - A15
t
PLAZ
t
RLRH
t
RLDV
DATA IN
t
t
LLIV
PLIV
INSTR IN
t
PXIX
t
PXIZ
t
A0 - A7 FROM PCL
t
t
RHDZ
t
t
PLPH
PXAV
RHDX
WHLH
A8 - A15 FROM PCH
A8 - A15
A0 - A7
INSTR IN
19