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AT89C2051-24SU Datasheet(PDF) 12 Page - ATMEL Corporation

Part # AT89C2051-24SU
Description  8-bit Microcontroller with 2K Bytes Flash
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89C2051-24SU Datasheet(HTML) 12 Page - ATMEL Corporation

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12
0368G–MICRO–6/05
AT89C2051
Notes:
1. Under steady state (non-transient) conditions, I
OL must be externally limited as follows:
Maximum I
OL per port pin: 20 mA
Maximum total I
OL for all output pins: 80 mA
If I
OL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater
than the listed test conditions.
2. Minimum V
CC for Power-down is 2V.
16. Absolute Maximum Ratings*
Operating Temperature ................................. -55°C to +125°C
*NOTICE:
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.
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...................................................... 25.0 mA
17. DC Characteristics
T
A = -40°C to 85°C, VCC = 2.7V to 6.0V (unless otherwise noted)
Symbol
Parameter
Condition
Min
Max
Units
V
IL
Input Low-voltage
-0.5
0.2 V
CC - 0.1
V
V
IH
Input High-voltage
(Except XTAL1, RST)
0.2 V
CC + 0.9
V
CC + 0.5
V
VIH1
Input High-voltage
(XTAL1, RST)
0.7 VCC
VCC + 0.5
V
V
OL
Output Low-voltage
(1)
(Ports 1, 3)
IOL = 20 mA, VCC = 5V
I
OL = 10 mA, VCC = 2.7V
0.5
V
V
OH
Output High-voltage
(Ports 1, 3)
I
OH = -80 µA, VCC = 5V ± 10%
2.4
V
I
OH = -30 µA
0.75 V
CC
V
IOH = -12 µA
0.9 VCC
V
I
IL
Logical 0 Input Current
(Ports 1, 3)
V
IN = 0.45V
-50
µA
ITL
Logical 1 to 0 Transition Current
(Ports 1, 3)
VIN = 2V, VCC = 5V ± 10%
-750
µA
I
LI
Input Leakage Current
(Port P1.0, P1.1)
0 < V
IN < VCC
±10
µA
V
OS
Comparator Input Offset Voltage
V
CC = 5V
20
mV
V
CM
Comparator Input Common
Mode Voltage
0V
CC
V
RRST
Reset Pull-down Resistor
50
300
k
C
IO
Pin Capacitance
Test Freq. = 1 MHz, T
A = 25°C
10
pF
I
CC
Power Supply Current
Active Mode, 12 MHz, VCC = 6V/3V
15/5.5
mA
Idle Mode, 12 MHz, V
CC = 6V/3V
P1.0 & P1.1 = 0V or VCC
5/1
mA
Power-down Mode
(2)
V
CC = 6V, P1.0 & P1.1 = 0V or VCC
100
µA
V
CC = 3V, P1.0 & P1.1 = 0V or VCC
20
µA


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