
776
32099I–01/2012
AT32UC3L016/32/64
32.5
I/O Pin Characteristics
Notes:
1. V
VDD corresponds to either VVDDIN or VVDDIO, depending on the supply for the pin. Refer to Section 3.2 on page 9 for details. 2. These values are based on simulation and characterization of other AVR microcontrollers manufactured in the same pro-
cess technology. These values are not covered by test limits in production.
Table 32-7.
Normal I/O Pin Characteristics
Symbol
Parameter
Condition
Min
Typ
Max
Units
RPULLUP
Pull-up resistance
75
100
145
kOhm
VIL
Input low-level voltage
V
VDD = 3.0 V
-0.3
0.3*V
VDD
V
VVDD = 1.62V
-0.3
0.3*VVDD
VIH
Input high-level voltage
VVDD = 3.6V
0.7*VVDD
VVDD + 0.3
V
VDD = 1.98 V
0.7*V
VDD
V
VDD + 0.3
V
OL
Output low-level voltage
VVDD = 3.0V, IOL = 3mA
0.4
V
VVDD = 1.62V, IOL = 2mA
0.4
VOH
Output high-level voltage
V
VDD = 3.0 V, IOH = 3 mA
V
VDD - 0.4
V
VVDD = 1.62V, IOH = 2mA
VVDD - 0.4
fMAX
VVDD = 3.0V, load = 10pF
45
MHz
V
VDD = 3.0 V, load = 30 pF
23
t
RISE
VVDD = 3.0V, load = 10pF
4.7
ns
VVDD = 3.0V, load = 30pF
11.5
tFALL
V
VDD = 3.0 V, load = 10 pF
4.8
VVDD = 3.0V, load = 30pF
12
ILEAK
Input leakage current
Pull-up resistors disabled
1
A
CIN
Input capacitance, all
normal I/O pins except
PA05, PA07, PA17, PA20,
PA21, PB04, PB05
TQFP48 package
1.4
pF
QFN48 package
1.1
TLLGA 48 package
1.1
CIN
Input capacitance, PA20
TQFP48 package
2.7
QFN48 package
2.4
TLLGA 48 package
2.4
CIN
Input capacitance, PA05,
PA07, PA17, PA21, PB04,
PB05
TQFP48 package
3.8
QFN48 package
3.5
TLLGA 48 package
3.5
Table 32-8.
High-drive I/O Pin Characteristics
Symbol
Parameter
Condition
Min
Typ
Max
Units
R
PULLUP
Pull-up resistance
PA06
30
50
110
kOhm
PA02, PB01, RESET
75
100
145
PA08, PA09
10
20
45