AT89C55WD-24PU Atmel, AT89C55WD-24PU Datasheet - Page 25
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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
23. Flash Programming and Verification Waveforms
24. Lock Bit Programming
25. Parallel Chip Erase Mode
1921D–MICRO–6/08
Test Conditions
ALE/PROG
V
Lockbit_1, 2 or 3
CC
Test Conditions
P3<0>
Setup
= 6.5V
V
ALE/PROG
Data Setup
CC
P1.0 - P1.7
P2.0 - P2.5
ALE/PROG
(RDY/BSY)
(ENABLE)
= 6.5V
Setup
PORT 0
P3.0
P2.7
EA/V
200 ns
P3.4
PP
Erase
t
t
SHGL
AVGL
Erase
DC
t
EHSH
V
PROGRAMMING
PP
t
DVGL
ADDRESS
100 µs
DATA IN
t
GLGH
t
GHBL
t
GHDX
10 ms
t
ELQV
t
200 ns
GHAX
t
GHSL
LOGIC 1
LOGIC 0
BUSY
Test Conditions Setup
t
WC
Erase
VERIFICATION
DATA OUT
ADDRESS
t
AVQV
READY
V
CC
Wait 10 ms to reload
new lock bit status
Erase
DC
= 4.5V to 5.5V
t
V
EHQZ
CC
AT89C55WD
= 4.5V to 5.5V
Wait 10 ms before
reprogramming
25