
153
AT89C5131
4136C–USB–04/05
Electrical Characteristics
Absolute Maximum Ratings
DC Parameters for Low Voltage
TA = -40
°C to +85°C; V
SS = 0V; VCC = 3.3V ± 10%; F = 0 to 40 MHz
Ambient Temperature Under Bias:
I = industrial ........................................................-40
°C to 85°C
Storage Temperature .................................... -65
°C to + 150°C
Voltage on V
CC from VSS ...................................-0.5V to + 3.6V
Voltage on Any Pin from V
SS .....................-0.5V to VCC + 0.2V
Note:
Stresses at or above those listed under “Absolute
Maximum Ratings” may cause permanent damage to
the device. This is a stress rating only and functional
operation of the device at these or any other condi-
tions above those indicated in the operational
sections of this specification is not implied. Exposure
to absolute maximum rating conditions may affect
device reliability.
Symbol
Parameter
Min
Typ
(5)
Max
Unit
Test Conditions
VIL
Input Low Voltage
-0.5
0.2Vcc - 0.1
V
VIH
Input High Voltage except XTAL1, RST
0.2 VCC + 0.9
VCC + 0.5
V
VIH1
Input High Voltage, XTAL1, RST
0.7 VCC
VCC + 0.5
V
VOL
Output Low Voltage, ports 1, 2, 3 and 4
(6)
0.3
0.45
1.0
V
IOL = 100 A
(4)
IOL = 0.8 mA
(4)
IOL = 1.6mA
(4)
VOL1
Output Low Voltage, port 0, ALE, PSEN
(6)
0.3
0.45
1.0
V
IOL = 200 A
(4)
IOL = 1.6 mA
(4)
IOL = 3.5 mA
(4)
VOH
Output High Voltage, ports 1, 2, 3, 4 and 5
VCC - 0.3
VCC - 0.7
VCC - 1.5
V
IOH = -10 A
IOH = -30 A
IOH = -60 A
VCC = 3.3V ± 10%
VOH1
Output High Voltage, port 0, ALE, PSEN
VCC - 0.3
VCC - 0.7
VCC - 1.5
V
IOH = -200 A
IOH = -1.6 mA
IOH = -3.5 mA
VCC = 3.3V ± 10%
RRST
RST Pullup Resistor
50
100
200
k
IIL
Logical 0 Input Current ports 1, 2, 3 and 4
-50
A
Vin = 0.45V
ILI
Input Leakage Current
±10
A
0.45V < Vin < VCC
I
TL
Logical 1 to 0 Transition Current, ports 1, 2, 3
and 4
-650
A
Vin = 2.0V
CIO
Capacitance of I/O Buffer
10
pF
Fc = 1 MHz
TA = 25
°C
I
PD
Power-down Current
50
100
A3.0V < V
CC < 3.6V
(3)
I
CC
Power Supply Current
I
CCOP = 0.7 Freq (MHz) + 3 mA
I
CCIDLE = 0.6 Freq (MHz) + 2 mA
V
CC = 3.3V
(1)(2)
V
PFDP
Power Fail High Level Threshold
3.0
V