AT89C55WD-24PU Atmel, AT89C55WD-24PU Datasheet - Page 29
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AT89C55WD-24PU
Manufacturer Part Number
AT89C55WD-24PU
Description
IC 8051 MCU FLASH 20K 40DIP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C55WD-24AU.pdf
(35 pages)
Specifications of AT89C55WD-24PU
Core Processor
8051
Core Size
8-Bit
Speed
24MHz
Connectivity
UART/USART
Peripherals
WDT
Number Of I /o
32
Program Memory Size
20KB (20K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
UART
Maximum Clock Frequency
24 MHz
Number Of Programmable I/os
32
Number Of Timers
3
Operating Supply Voltage
4 V to 6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Minimum Operating Temperature
- 40 C
Package
40PDIP
Device Core
8051
Family Name
89C
Maximum Speed
24 MHz
Cpu Family
AT89
Device Core Size
8b
Frequency (max)
24MHz
Total Internal Ram Size
256Byte
# I/os (max)
32
Number Of Timers - General Purpose
3
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
4V
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Through Hole
Pin Count
40
Package Type
PDIP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89C55WD-24PU
Manufacturer:
ATM
Quantity:
6 250
Company:
Part Number:
AT89C55WD-24PU
Manufacturer:
ATMEL
Quantity:
48 565
Company:
Part Number:
AT89C55WD-24PU
Manufacturer:
ATM
Quantity:
6 250
Company:
Part Number:
AT89C55WD-24PU
Manufacturer:
ATMEL
Quantity:
13
Part Number:
AT89C55WD-24PU
Manufacturer:
PHI
Quantity:
20 000
31. External Data Memory Write Cycle
32. External Clock Drive Waveforms
33. External Clock Drive
1921D–MICRO–6/08
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
A0 - A7 FROM RI OR DPL
- 0.1V
CC
t
t
LHLL
CHCX
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
t
CLCX
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
AT89C55WD
Units
MHz
ns
ns
ns
ns
ns
t
CHCL
29