AT89S51-33AC ATMEL [ATMEL Corporation], AT89S51-33AC Datasheet - Page 22

• Manufacturer Part Number: AT89S51-33AC
• Description: 8-bit Microcontroller with 4K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

23. DC Characteristics
The values shown in this table are valid for T
Notes:
22
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
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
(Port 0, ALE, PSEN)
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
AT89S51
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
(2)
Ports 1, 2, 3: 15 mA
(1)
(1)
(Ports 1,2,3)
OL
A
may exceed the related specification. Pins are not guaranteed to sink current greater
= -40°C to 85°C and V
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
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
OL
IN
must be externally limited as follows:
< V
CC
= 5V ± 10%
CC
CC
CC
= 5V ± 10%
= 5V ± 10%
A
= 25°C
CC
= 4.0V to 5.5V, unless otherwise noted.
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
50
CC
CC
CC
CC
+0.9
CC
CC
0.2 V
0.2 V
V
V
CC
CC
-300
Max
0.45
0.45
±10
300
-50
6.5
10
25
50
CC
CC
+0.5
+0.5
-0.1
-0.3
2487C–MICRO–03/05
Units
KΩ
mA
mA
µA
µA
µA
pF
µA
V
V
V
V
V
V
V
V
V
V
V
V