Datasheet

721
32133D–11/2011
UC3D
Notes: 1. V
VDD
corresponds to either V
VDDIN
or V
VDDIO
, depending on the supply for the pin. Refer to Section 3.2 on page 8 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.
3. This applies to all normal drive pads except PB13, PB17 and PB18.
4. This applies to PB13, PB17 and PB18 pads only.
5. This applies to all normal drive pad except PA00, PA01, PA02, PA03, PA04, PA05, PA06, PA07, PA08, PA09, PA10, PA11,
PA12, PA13, PA18, PA19, PA27, PA30, PA31, PB13, PB16 and RESET_N.
6. This applies to PA00, PA01, PA02, PA03, PA04, PA05, PA06, PA07, PA08, PA09, PA10, PA11, PA12, PA13, PA18, PA19,
PA27, PA30, PA31, PB13, PB16 and RESET_N pads only.
7. This applies to all normal drive pads except PA09, PA10, PA11, PA12, PA18, PA19, PB14, PB15.
I
OL
Output low-level current V
VDD
= 3.0V
(5)
4mA
(6)
8mA
I
OH
Output high-level current V
VDD
= 3.0V
(5)
4mA
(6)
8mA
F
MAX
Output frequency
(2)
V
VDD
= 3.0V, load =
10 pF
(5)
195 MHz
(6)
348 MHz
V
VDD
= 3.0V, load =
30 pF
(5)
78 MHz
(6)
149 MHz
t
RISE
Rise time
(2)
V
VDD
= 3.0V, load =
10 pF
(5)
2.21 ns
(6)
1.26 ns
V
VDD
= 3.0V, load =
30 pF
(5)
5.45 ns
(6)
2.88 ns
t
FALL
Fall time
(2)
V
VDD
= 3.0V, load =
10 pF
(5)
2.57 ns
(6)
1.44 ns
V
VDD
= 3.0V, load =
30 pF
(5)
6.41 ns
(6)
3.35 ns
I
LEAK
Input leakage current Pull-up resistors disabled 1 µA
C
IN
Input capacitance,
(7)
2pF
PA09, PA10 16.5 pF
PA11, PA12, PA18, PA19 18.5 pF
PB14, PB15 5 pF
Table 32-6. Normal I/O Pin Characteristics
(1)
Symbol Parameter Condition Min Typ Max Units
Table 32-7. High-drive I/O Pin Characteristics
(1)
Symbol Parameter Condition Min Typ Max Units
R
PULLUP
Pull-up resistance 9 15 25 kOhm
V
IL
Input low-level voltage V
VDD
= 3.0V -0.3 +0.8 V
V
IH
Input high-level voltage V
VDD
= 3.6V +2 V
VDD
+ 0.3 V
V
OL
Output low-level voltage V
VDD
= 3.0V, I
OL
= 6mA 0.4 V