Rainbow Electronics T89C51RD2 - Manual (Page 71)

71 Rev. F - 15 February, 2001
T89C51RD2
9.2. DC Parameters for Standard Voltage (1)
T A = 0
°
C to +70
°
C; V
SS
= 0 V; V
CC
= 5 V
±
10%; F = 0 to 40 MHz.
T A = -40
°
C to +85
°
C; V
SS
= 0 V; V
CC
= 5 V
±
10%; F = 0 to 40 MHz.
Table 35. DC Parameters in Standard Voltage (1)
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) 0.3
0.45
1.0
V
V
V
I
OL
= 100
µ
A
(4)
I
OL
= 1.6 mA (4)
I
OL
= 3.5 mA (4)
V
OL1 Output Low Voltage, port 0, ALE, PSEN
(6) 0.3
0.45
1.0
V
V
V
I
OL
= 200
µ
A
(4)
I
OL
= 3.2 mA
(4)
I
OL
= 7.0 mA (4)
V
OH
Output High Voltage, ports 1, 2, 3, 4 and 5 V
CC
- 0.3
V
CC
- 0.7
V
CC
- 1.5
V
V
V
I
OH
= -10
µ
A
I
OH
= -30
µ
A
I
OH
= -60
µ
A
V
CC
= 5 V
±
10%
V
OH1
Output High Voltage, port 0, ALE, PSEN V
CC
- 0.3
V
CC
- 0.7
V
CC
- 1.5
V
V
V
I
OH
= -200
µ
A
I
OH
= -3.2 mA
I
OH
= -7.0 mA
V
CC
= 5 V
±
10%
R
RST
RST Pulldown Resistor 50 90 200 k
Ω
I
IL
Logical 0 Input Current ports 1, 2, 3, 4 and 5 -50
µ
A Vin = 0.45 V
I
LI
Input Leakage Current
±
10
µ
A 0.45 V < Vin < V
CC
I
TL
Logical 1 to 0 Transition Current, ports 1, 2, 3,
4 and 5 -650
µ
A Vin = 2.0 V
C
IO
Capacitance of I/O Buffer 10 pF Fc = 1 MHz
T
A = 25
°
C
I
PD
Power Down Current 120 150
µ
A V
CC
= 3 V to 5.5 V (3)
I
CCOP
Power Supply Current onnormal mode 0.7 Freq
(MHz) + 3
mA
mA V
CC
= 5.5 V (1)
I
CCIDLE
Power Supply Current on idle mode 0.4 Freq
(MHz) + 2
mA
mA
V
CC
= 5.5 V
(2)