Owner manual

Rev. F - 15 February, 2001 72
T89C51RD2
9.3. DC Parameters for Standard Voltage (2)
TA =0°Cto+70°C; V
SS
=0V;V
CC
=3Vto5.5V;F=0to33MHz.
TA = -40°Cto+85°C; V
SS
=0V;V
CC
=3Vto5.5V;F=0to33MHz.
Table 36. DC Parameters for Standard Voltage (2)
Symbol Parameter Min
Typ
(5)
Max Unit Test Conditions
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
V
IH1
Input High Voltage, XTAL1, RST 0.7 V
CC
V
CC
+ 0.5 V
V
OL
Output Low Voltage, ports 1, 2, 3, 4 and 5
(6)
0.45 V
I
OL
= 0.8 mA
(4)
V
OL1
Output Low Voltage, port 0, ALE, PSEN
(6)
0.45 V
I
OL
= 1.6 mA
(4)
V
OH
Output High Voltage, ports 1, 2, 3, 4 and 5 0.9 V
CC
V I
OH
= -10 µA
V
OH1
Output High Voltage, port 0, ALE, PSEN 0.9 V
CC
V I
OH
= -40 µA
I
IL
Logical 0 Input Current ports 1, 2, 3, 4 and 5 -50 µA Vin = 0.45 V
I
LI
Input Leakage Current ±10 µA 0.45 V < Vin < V
CC
I
TL
Logical 1 to 0 Transition Current, ports 1, 2, 3,
4 and 5
-650 µA Vin = 2.0 V
R
RST
RST Pulldown Resistor 50 90 200 kΩ
CIO Capacitance of I/O Buffer 10 pF Fc = 1 MHz
T
A = 25°C
I
PD
Power Down Current 120 150 µA
V
CC
= 3 V to 5.5 V
(3)
I
CCOP
Power Supply Current on normal mode 0.7 Freq
(MHz)+3mA
mA
V
CC
= 5.5 V
(1)
I
CCIDLE
Power Supply Current on idle mode 0.5 Freq
(MHz)+2mA
mA
V
CC
= 5.5 V
(2)