Datasheet

116
42023GS–SAM–03/2014
ATSAM4L8/L4/L2
9.6.3 USB I/O Pin : PA25, PA26
9.6.4 TWI Pin : PA21, PA22, PA23, PA24, PB14, PB15
Table 9-15. USB I/O Pin Characteristics in GPIO configuration
(1)
1. V
VDD
corresponds to either V
VDDIN
or V
VDDIO
, depending on the supply for the pin. Refer to Section 3-5 on page 13 for details
Symbol Parameter Conditions Min Typ Max Units
R
PULLUP
Pull-up resistance
(2)
2. These values are based on simulation. These values are not covered by test limits in production or characterization
40 kΩ
R
PULLDOWN
Pull-down resistance
(2)
40 kΩ
V
IL
Input low-level voltage -0.3 0.2 * V
VDD
V
V
IH
Input high-level voltage 0.8 * V
VDD
V
VDD
+ 0.3
V
OL
Output low-level voltage 0.4
V
OH
Output high-level voltage V
VDD
- 0.4
I
OL
Output low-level current
(3)
3. These values are based on characterization. These values are not covered by test limits in production
ODCR0=0
1.68V<V
VDD
<2.7V 20
mA
2.7V<V
VDD
<3.6V 30
I
OH
Output high-level current
(3)
ODCR0=0
1.68V<V
VDD
<2.7V 20
mA
2.7V<V
VDD
<3.6V 30
F
PINMAX
Maximum frequency
(2)
ODCR0=0
OSRR0=0
load = 25pF
20 MHz
I
LEAK
Input leakage current
(3)
Pull-up resistors disabled 0.01 1 µA
C
IN
Input capacitance
(2)
5pF
Table 9-16. TWI Pin Characteristics in TWI configuration
(1)
Symbol Parameter Conditions Min Typ Max Units
R
PULLUP
Pull-up resistance
(2)
40 kΩ
R
PULLDOWN
Pull-down resistance
(2)
40 kΩ
V
IL
Input low-level voltage -0.3 0.3 * V
VDD
V
V
IH
Input high-level voltage 0.7 * V
VDD
V
VDD
+ 0.3 V
V
OL
Output low-level voltage 0.4 V
I
OL
Output low-level current
(3)
DRIVEL=0 0.5
mA
DRIVEL=1 1.0
DRIVEL=2 1.6
DRIVEL=3 3.1
DRIVEL=4 6.2
DRIVEL=5 9.3
DRIVEL=6 15.5
DRIVEL=7 21.8