AT89C55WD-24JI Atmel, AT89C55WD-24JI Datasheet - Page 2
AT89C55WD-24JI
Manufacturer Part Number
AT89C55WD-24JI
Description
IC MICRO CTRL 24MHZ 44PLCC
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C55WD-24AU.pdf
(35 pages)
Specifications of AT89C55WD-24JI
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
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
AT89C55WD24JI
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89C55WD-24JI
Manufacturer:
AGILENT
Quantity:
650
Company:
Part Number:
AT89C55WD-24JI
Manufacturer:
ATM
Quantity:
2 430
Company:
Part Number:
AT89C55WD-24JI
Manufacturer:
ATM
Quantity:
2 430
Company:
Part Number:
AT89C55WD-24JI
Manufacturer:
ATMEL
Quantity:
3
Part Number:
AT89C55WD-24JI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
2. Pin Configurations
2.1
2.2
2.3
2
44A – 44-lead TQFP
44J – 44-lead PLCC
40P6 – 40-lead PDIP
AT89C55WD
(INT0) P3.2
(INT1) P3.3
(RXD) P3.0
(TXD) P3.1
(T0) P3.4
(T1) P3.5
(RXD) P3.0
(INT0) P3.2
(INT1) P3.3
(TXD) P3.1
(T0) P3.4
(T1) P3.5
P1.5
P1.6
P1.7
RST
NC
P1.5
P1.6
P1.7
RST
NC
(T2EX) P1.1
(RXD) P3.0
(INT0) P3.2
(INT1) P3.3
(TXD) P3.1
(WR) P3.6
(RD) P3.7
(T2) P1.0
(T0) P3.4
(T1) P3.5
7
8
9
10
11
12
13
14
15
16
17
1
2
3
4
5
6
7
8
9
10
11
XTAL2
XTAL1
GND
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
RST
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
VCC
P0.0 (AD0)
P0.1 (AD1)
P0.2 (AD2)
P0.3 (AD3)
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
EA/VPP
ALE/PROG
PSEN
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
P2.4 (A12)
P2.3 (A11)
P2.2 (A10)
P2.1 (A9)
P2.0 (A8)
33
32
31
30
29
28
27
26
25
24
23
39
38
37
36
35
34
33
32
31
30
29
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
EA/VPP
NC
ALE/PROG
PSEN
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
EA/VPP
NC
ALE/PROG
PSEN
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
1921D–MICRO–6/08