AT89C55WD-24JU Atmel, AT89C55WD-24JU Datasheet - Page 33
![IC 8051 MCU FLASH 20K 44PLCC](/photos/6/70/67043/453-44-plcc_sml.jpg)
AT89C55WD-24JU
Manufacturer Part Number
AT89C55WD-24JU
Description
IC 8051 MCU FLASH 20K 44PLCC
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C55WD-24AU.pdf
(35 pages)
Specifications of AT89C55WD-24JU
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
44-PLCC
Cpu Family
89C
Device Core
8051
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
Surface Mount
Pin Count
44
Package Type
PLCC
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
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Minimum Operating Temperature
- 40 C
No. Of I/o's
32
Ram Memory Size
256Byte
Cpu Speed
24MHz
No. Of Timers
3
Digital Ic Case Style
LCC
Supply Voltage Range
4V To 5.5V
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89C55WD-24JU
Manufacturer:
ATM
Quantity:
1 980
Company:
Part Number:
AT89C55WD-24JU
Manufacturer:
ATMEL
Quantity:
42 279
Company:
Part Number:
AT89C55WD-24JU
Manufacturer:
ATM
Quantity:
1 980
Part Number:
AT89C55WD-24JU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
39.2
1921D–MICRO–6/08
Notes:
44J – PLCC
R
2325 Orchard Parkway
San Jose, CA 95131
1. This package conforms to JEDEC reference MS-018, Variation AC.
2. Dimensions D1 and E1 do not include mold protrusion.
3. Lead coplanarity is 0.004" (0.102 mm) maximum.
0.51(0.020)MAX
Allowable protrusion is .010"(0.254 mm) per side. Dimension D1
and E1 include mold mismatch and are measured at the extreme
material condition at the upper or lower parting line.
45˚ MAX (3X)
1.14(0.045) X 45˚
B
e
TITLE
44J, 44-lead, Plastic J-leaded Chip Carrier (PLCC)
D1
D
PIN NO. 1
IDENTIFIER
E1
1.14(0.045) X 45˚
E
SYMBOL
D2/E2
A
A1
A2
D
D1
E
E1
B
B1
e
A
17.399
16.510
17.399
16.510
14.986
4.191
2.286
0.660
0.330
0.508
COMMON DIMENSIONS
MIN
B1
(Unit of Measure = mm)
A2
A1
0.318(0.0125)
0.191(0.0075)
1.270 TYP
NOM
–
–
–
–
–
–
–
–
–
–
AT89C55WD
D2/E2
DRAWING NO.
17.653
16.662
17.653
16.662
16.002
4.572
3.048
0.813
0.533
MAX
–
44J
Note 2
Note 2
NOTE
10/04/01
REV.
B
33