Data Sheet

950
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
36.8 I/O Pin Characteristics
36.8.1 Normal I/O Pins
Note: 1. These values are based on simulation. These values are not covered by test limits in production or
characterization.
Table 36-14. Normal I/O Pins Characteristics
Symbol Parameter Conditions Min. Typ. Max. Units
R
PULL
Pull-up - Pull-down resistance
I
20 40 60 kΩ
V
IL
Input low-level voltage
V
DD
=1.62V-2.7V - - 0.25*V
DD
V
V
DD
=2.7V-3.63V - - 0.3*V
DD
V
IH
Input high-level voltage
V
DD
=1.62V-2.7V 0.7*V
DD
- -
V
DD
=2.7V-3.63V 0.55*V
DD
- -
V
OL
Output low-level voltage V
DD
>1.6V, I
OL
max I - 0.1*V
DD
0.2*V
DD
V
OH
Output high-level voltage V
DD
>1.6V, I
OH
max II 0.8*V
DD
0.9*V
DD
-
I
OL
Output low-level current
V
DD
=1.62V-3V,
PORT.PINCFG.DRVSTR=0
- - 1
mA
V
DD
=3V-3.63V,
PORT.PINCFG.DRVSTR=0
- - 2.5
V
DD
=1.62V-3V,
PORT.PINCFG.DRVSTR=1
- - 3
V
DD
=3V-3.63V,
PORT.PINCFG.DRVSTR=1
- - 10
I
OH
Output high-level current
V
DD
=1.62V-3V,
PORT.PINCFG.DRVSTR=0
- - 0.70
V
DD
=3V-3.63V,
PORT.PINCFG.DRVSTR=0
- - 2
V
DD
=1.62V-3V,
PORT.PINCFG.DRVSTR=1
- - 2
V
DD
=3V-3.63V,
PORT.PINCFG.DRVSTR=1
- - 7
t
RISE
Rise time
(1)
PORT.PINCFG.DRVSTR=0
load = 5pF, V
DD
= 3.3V
- - 15
nS
PORT.PINCFG.DRVSTR=1
load = 20pF, V
DD
= 3.3V
- - 15
t
FALL
Fall time
(1)
PORT.PINCFG.DRVSTR=0
load = 5pF, V
DD
= 3.3V
- - 15
nS
PORT.PINCFG.DRVSTR=1
load = 20pF, V
DD
= 3.3V
- - 15
I
LEAK
Input leakage current Pull-up resistors disabled -1 +/-0.015 1 µA