3 digital i/os dc characteristics – Rainbow Electronics AT73C246 User Manual
Page 13
13
11050A–PMAAC–07-Apr-10
AT73C246
9.3
Digital I/Os DC Characteristics
Notes: 1. V
PAD
referred pins ITB, RSTB: open drain outputs. Only V
OL
and I
O
parameters are applicable.
2. V
PAD
referred pins WAKEUP1, WAKEUP2, WAKEUP3, MCLK, DAI, TWCK: CMOS inputs. Only V
IH
and V
IL
parameters are
applicable.
3. V
PAD
referred pins MCLK32K, DAO: CMOS outputs. Only V
OL
, V
OH
and I
O
parameters are applicable.
4. V
PAD
referred pin TWD: CMOS input and open drain output. Only V
IL
, V
IH
, V
OL
, I
O
parameters are applicable.
5. V
PAD
referred pins LRFS, BCLK: CMOS BiDir. All parameters applicable
Note:
V
BACKUP
referred pins PWREN, HRST, WAKEUP0: CMOS inputs. Only V
IL
and V
IH
parameters are applicable.
Table 9-3.
V
PAD
Referred Digital I/Os
Symbol
Parameter
Comments
Min
Typ
Max
Units
V
PAD
Operating Supply Voltage
1.75
3.6
5.5
V
V
IL
Input Low-Level Voltage
-0.3
-
0.3 x
V
PAD
V
V
IH
Input High-Level Voltage
0.7 x
V
PAD
-
V
PAD
+
0.3
V
V
OH
Output High-Level Voltage
I
O
max.
0.75 x
V
PAD
-
-
V
V
OL
Output Low-Level Voltage
I
O
max
-
-
0.25 x
V
PAD
V
I
O
Output Current
-
-
8
mA
R
P
Pull-Up or Pull-Down Resistance
When applicable.
70
100
145
k
Ω
Table 9-4.
V
BACKUP
Referred Digital I/Os
Symbol
Parameter
Comments
Min
Typ
Max
Units
V
BACKUP
Operating Supply Voltage
1.75
2.5
2.65
V
V
IL
Input Low-Level Voltage
-0.3
-
0.3 x
V
BACKUP
V
V
IH
Input High-Level Voltage
0.7 x
V
BACKUP
-
V
BACKUP
+ 0.3
V
V
OH
Output High-Level Voltage
I
O
max.
0.75 x
V
BACKUP
-
-
V
V
OL
Output Low-Level Voltage
I
O
max
-
-
0.25 x
V
BACKUP
V
I
O
Output Current
-
-
8
mA
R
P
Pull-Up or Pull-Down resistance
When applicable.
70
100
145
k
Ω