Rainbow Electronics T89C51RD2 - Manual (Page 72)

Rev. F - 15 February, 2001 72
T89C51RD2
9.3. DC Parameters for Standard Voltage (2)
T A = 0
°
C to +70
°
C; V
SS
= 0 V; V
CC
= 3 V to 5.5 V; F = 0 to 33 MHz.
T A = -40
°
C to +85
°
C; V
SS
= 0 V; V
CC
= 3 V to 5.5 V; F = 0 to 33 MHz.
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
µ
A
V
OH1
Output High Voltage, port 0, ALE, PSEN 0.9 V
CC
V I
OH
= -40
µ
A
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
R
RST
RST Pulldown Resistor 50 90 200 k
Ω
CIO 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 on normal mode 0.7 Freq
(MHz) + 3 mA mA V
CC
= 5.5 V (1)
I
CCIDLE
Power Supply Current on idle mode 0.5 Freq
(MHz) + 2 mA mA V
CC
= 5.5 V
(2)