AT89S8252
Z
Absolute Maximum Ratings*
*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.
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
DC Characteristics
The values shown in this table are valid for TA = -40°C to 85°C and VCC = 5.0V 20%, unless otherwise noted.
Symbol
VIL
Parameter
Condition
Min
-0.5
Max
0.2 VCC - 0.1
0.2 VCC - 0.3
VCC + 0.5
VCC + 0.5
0.5
Units
Input Low-voltage
Input Low-voltage (EA)
Input High-voltage
Input High-voltage
(Except EA)
V
V
V
V
V
VIL1
-0.5
VIH
(Except XTAL1, RST)
(XTAL1, RST)
0.2 VCC + 0.9
0.7 VCC
VIH1
VOL
Output Low-voltage (1)
(Ports 1,2,3)
I
OL = 1.6 mA
VOL1
Output Low-voltage (1)
(Port 0, ALE, PSEN)
I
OL = 3.2 mA
0.5
V
VOH
Output High-voltage
(Ports 1,2,3, ALE, PSEN)
I
I
I
OH = -60 µA, VCC = 5V ± 10%
OH = -25 µA
2.4
V
V
0.75 VCC
0.9 VCC
2.4
OH = -10 µA
V
VOH1
Output High-voltage
IOH = -800 µA, VCC = 5V ± 10%
V
(Port 0 in External Bus Mode)
I
I
OH = -300 µA
OH = -80 µA
0.75 VCC
0.9 VCC
V
V
IIL
ITL
ILI
Logical 0 Input Current (Ports 1,2,3)
VIN = 0.45V
-50
-650
±10
µA
µA
µA
Logical 1 to 0 Transition Current (Ports 1,2,3)
VIN = 2V, VCC = 5V ± 10%
0.45 < VIN < VCC
Input Leakage Current
(Port 0, EA)
RRST
CIO
Reset Pull-down Resistor
Pin Capacitance
50
300
10
KΩ
pF
Test Freq. = 1 MHz, TA = 25°C
Active Mode, 12 MHz
Idle Mode, 12 MHz
VCC = 6V
ICC
Power Supply Current
25
mA
mA
µA
µA
6.5
100
40
Power-down Mode (2)
VCC = 3V
Notes: 1. Under steady state (non-transient) conditions, IOL must be externally limited as follows:
Maximum IOL per port pin: 10 mA
Maximum IOL per 8-bit port: Port 0: 26 mA; Ports 1, 2, 3: 15 mA
Maximum total IOL for all output pins: 71 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
31
0401G–MICRO–3/06
ATMEL [ ATMEL ]
