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C164CM
C164SM
Data Sheet
43
V1.0, 2001-05
ALE inactive current
9)
ALE active current
9)
PORT0 configuration current
10)
I
P0H7)
I
ALEL7)
I
ALEH8)
–
500
–
-100
40
–
-10
–
±
20
10
μ
A
μ
A
μ
A
μ
A
μ
A
pF
V
OUT
=
V
OLmax
V
OUT
= 2.4 V
V
IN
=
V
IHmin
V
IN
=
V
ILmax
0 V <
V
IN
<
V
DD
f
= 1 MHz
T
A
= 25
°
C
I
P0L8)
I
IL
C
IO
XTAL1 input current
Pin capacitance
11)
(digital inputs/outputs)
CC
–
CC
–
1)
Keeping signal levels within the levels specified in this table, ensures operation without overload conditions.
For signal levels outside these specifications also refer to the specification of the overload current
I
OV
.
2)
For pin RSTIN this specification is only valid in bidirectional reset mode.
3)
The maximum deliverable output current of a port driver depends on the selected output driver mode, see
Table 10
,
Current Limits for Port Output Drivers
. The limit for pin groups must be respected.
4)
As a rule, with decreasing output current the output levels approach the respective supply level (
V
OL
→
V
SS
,
V
OH
→
V
DD
). However, only the levels for nominal output currents are guaranteed.
5)
This specification is not valid for outputs which are switched to open drain mode. In this case the respective
output will float and the voltage results from the external circuitry.
6)
These parameters describe the RSTIN pullup, which equals a resistance of ca. 50 to 250 k
.
7)
The maximum current may be drawn while the respective signal line remains inactive.
8)
The minimum current must be drawn in order to drive the respective signal line active.
9)
This specification is valid during Reset and during Adapt-mode.
10)
This specification is valid during Reset if required for configuration, and during Adapt-mode.
11)
Not 100% tested, guaranteed by design and characterization.
Table 10
Port Output Driver
Mode
Strong driver
Medium driver
Weak driver
Current Limits for Port Output Drivers
Maximum Output Current
(
I
OLmax
, -
I
OHmax
)
1)
10 mA
4.0 mA
0.5 mA
1)
An output current above |
I
OXnom
| may be drawn from up to three pins at the same time.
For any group of 16 neighboring port output pins the total output current in each direction (
Σ
I
OL
and
Σ
-
I
OH
)
must remain below 50 mA.
Nominal Output Current
(
I
OLnom
, -
I
OHnom
)
2.5 mA
1.0 mA
0.1 mA
DC Characteristics
(cont
’
d)
(Operating Conditions apply)
1)
Parameter
Symbol
Limit Values
min.
Unit Test Conditions
max.