Rainbow Electronics T89C5121 User Manual
Page 100
100
A/T8xC5121
4164G–SCR–07/06
Table 73. Serial Interface DC parameters (P3.0, P3.1, P3.3 and P3.4)
Table 74. LED outputs DC Parameters (P3.6 and P3.7)
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
V
IL
Input Low Voltage
-0.5
-0.5
-0.5
0.4
0.5
0.5
V
V
V
EV
CC
= 1.8V
EV
CC
= 2.3V
EV
CC
= 2.8V
External EVcc
Automatic EVcc
V
IH
Input High Voltage
1.4
1.6
2.0
0.7 x EV
CC
EV
CC
2.3
2.8
3.3
EV
CC
+
0.5
V
V
V
V
EV
CC
= 1.8V
EV
CC
= 2.3V
EV
CC
= 2.8V
External EV
CC
Automatic EVcc
V
OL
Output Low
Voltage
0.4
V
I
OL
= 1.2 mA
V
OH
Output High
Voltage
1.6
1.8
2.2
0.8 x EV
CC
1.8
2.3
2.7
EV
CC
V
V
V
V
EV
CC
= 1.8V I
OH
= 1
μ
A
EV
CC
= 2.3V
EV
CC
= 2.8V I
OH
= 10
μ
A
External EV
CC
EI
CC
Extra Supply
Current
+3
mA
C
L
= 100 nF
EV
CC
Extra Supply
Voltage
1.6
2.1
2.6
1.6
1.7
2.2
2.7
1.8
2.3
2.8
V
CC
V
V
V
V
C
L
= 100 nF, 1.8V
C
L
= 100 nF, 2.3V
C
L
= 100 nF, 2.8V
External EV
CC
Automatic EVcc
Ts
Sampling time
Automatic EVcc
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
I
OL
Output Low
Current, P3.6 and
P3.7 LED modes
1
2
5
2
4
10
4
8
20
mA
mA
mA
2 mA configuration
4 mA configuration
10 mA configuration
(T
A
= -20
°
C to +50
°
C, V
CC
-
V
OL
= 2V
±
20%)