AT89C55WD-24PI Atmel, AT89C55WD-24PI Datasheet - Page 26
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AT89C55WD-24PI
Manufacturer Part Number
AT89C55WD-24PI
Description
IC MICRO CTRL 24MHZ 40DIP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C55WD-24AU.pdf
(35 pages)
Specifications of AT89C55WD-24PI
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)
Data Bus Width
8 bit
Data Ram Size
256 B
Maximum Clock Frequency
33 MHz
Number Of Programmable I/os
32
Number Of Timers
3 x 16 bit
Operating Supply Voltage
4 V to 5.5 V
Maximum Operating Temperature
+ 70 C
Mounting Style
Through Hole
Minimum Operating Temperature
0 C
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
No RoHS Version Available
Other names
AT89C55WD24PI
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89C55WD-24PI
Manufacturer:
ATM
Quantity:
2 800
Company:
Part Number:
AT89C55WD-24PI
Manufacturer:
ATM
Quantity:
2 800
26. Absolute Maximum Ratings*
27. DC Characteristics
The values shown in this table are valid for T
Notes:
26
Operating Temperature.................................. -55°C to +125°C
Storage Temperature ..................................... -65°C to +150°C
Voltage on Any Pin
with Respect to Ground .....................................-1.0V to +7.0V
Maximum Operating Voltage ............................................ 6.6V
DC Output Current...................................................... 15.0 mA
Symbol
V
V
V
V
V
V
V
V
I
I
I
RRST
C
I
IL
TL
LI
CC
OL
OL1
OH
OH1
IL
IL1
IH
IH1
IO
1. Under steady state (non-transient) conditions, I
2. Minimum V
AT89C55WD
Maximum I
Maximum I
Port 0: 26 mA
Maximum total I
If I
than the listed test conditions.
Parameter
Input Low Voltage
Input Low Voltage (EA)
Input High Voltage
Input High Voltage
Output Low Voltage
Output Low Voltage
Output High Voltage
(Ports 1,2,3, ALE, PSEN)
Output High Voltage
(Port 0 in External Bus Mode)
Logical 0 Input Current (Ports 1,2,3)
Logical 1 to 0 Transition Current (Ports 1,2,3)
Input Leakage Current (Port 0, EA)
Reset Pulldown Resistor
Pin Capacitance
Power Supply Current
Power-down Mode
OL
exceeds the test condition, V
OL
OL
CC
per port pin: 10 mA
per 8-bit port:
for Power-down is 2V.
OL
for all output pins: 71 mA
(1)
Ports 1, 2, 3: 15 mA
(1)
(1)
(Ports 1,2,3)
(Port 0, ALE, PSEN)
OL
A
may exceed the related specification. Pins are not guaranteed to sink current greater
= -40°C to 85°C and V
OL
Condition
(Except EA)
(Except XTAL1, RST)
(XTAL1, RST)
I
I
I
I
I
I
I
I
V
V
0.45 < V
Test Freq. = 1 MHz, T
Active Mode, 12 MHz
Idle Mode, 12 MHz
V
must be externally limited as follows:
OL
OL
OH
OH
OH
OH
OH
OH
IN
IN
CC
= 1.6 mA
= 3.2 mA
= -60 µA, V
= -25 µA
= -10 µA
= -800 µA, V
= -300 µA
= -80 µA
= 0.45V
= 2V, V
= 5.5V
IN
*NOTICE:
< V
CC
= 5V ± 10%
CC
CC
CC
CC
= 4.0V to 5.5V, unless otherwise noted.
= 5V ± 10%
= 5V ± 10%
A
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect
device reliability.
= 25°C
0.2 V
0.75 V
0.75 V
0.7 V
0.9 V
0.9 V
Min
-0.5
-0.5
2.4
2.4
10
CC
CC
CC
CC
+0.9
CC
CC
0.2 V
0.2 V
V
V
CC
CC
Max
-650
0.45
0.45
100
-50
±10
6.5
30
10
25
CC
CC
+0.5
+0.5
1921D–MICRO–6/08
-0.1
-0.3
Units
mA
mA
µA
µA
µA
kΩ
pF
µA
V
V
V
V
V
V
V
V
V
V
V
V