DC Characteristics
TA = -40°C to 85°C, VCC = 3.0V to 6.0V (unless otherwise noted)
Symbol
VIL
Parameter
Condition
Min
-0.5
Max
0.2 VCC - 0.1
VCC + 0.5
VCC + 0.5
0.5
Units
Input Low Voltage
Input High Voltage
Input High Voltage
V
V
V
V
VIH
(Except XTAL1, RST)
(XTAL1, RST)
0.2 VCC + 0.9
0.7 VCC
VIH1
VOL
Output Low Voltage(1)
(Ports 1, 3)
IOL = 20 mA, VCC = 5V
IOL = 10 mA, VCC = 2.7V
VOH
Output High Voltage
(Ports 1, 3)
IOH = -80 µA, VCC = 5V ± 10%
2.4
V
V
I
I
OH = -30 µA
OH = -12 µA
0.75 VCC
0.9 VCC
V
IIL
ITL
ILI
Logical 0 Input Current
(Ports 1, 3)
VIN = 0.45V
-50
-750
±10
µA
Logical 1 to 0 Transition Current
(Ports 1, 3)
VIN = 2V, VCC = 5V ± 10%
0 < VIN < VCC
µA
µA
Input Leakage Current
(Port P1.0, P1.1)
VOS
VCM
Comparator Input Offset Voltage
VCC = 5V
20
mV
V
Comparator Input Common
Mode Voltage
0
VCC
RRST
CIO
Reset Pulldown Resistor
Pin Capacitance
50
300
10
KΩ
pF
Test Freq. = 1 MHz, TA = 25°C
ICC
Power Supply Current
Active Mode, 12 MHz, VCC = 6V/3V
15/5.5
5/1
mA
mA
Idle Mode, 12 MHz, VCC = 6V/3V
P1.0 & P1.1 = 0V or VCC
Power Down Mode(2)
VCC = 6V P1.0 & P1.1 = 0V or VCC
100
20
µA
µA
V
CC = 3V P1.0 & P1.1 = 0V or VCC
Notes: 1. Under steady state (non-transient) conditions, IOL must be externally limited as follows:
Maximum IOL per port pin: 20 mA
Maximum total IOL for all output pins: 80 mA
If IOL 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 VCC for Power Down is 2V.
AT89C4051
10
ATMEL [ ATMEL ]
