Datasheet

904
32142D–06/2013
ATUC64/128/256L3/4U
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.
Notes: 1. V
VDD
corresponds to either V
VDDIN
or V
VDDIO
, depending on the supply for the pin. Refer to Section on page 10 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 35-8. High-drive I/O, 5V Tolerant, Pin Characteristics
(1)
Symbol Parameter Condition Min Typ Max Units
R
PULLUP
Pull-up resistance 30 50 110 kOhm
V
IL
Input low-level voltage
V
VDD
= 3.0V -0.3 0.3 * V
VDD
V
V
VDD
= 1.62V -0.3 0.3 * V
VDD
V
IH
Input high-level voltage
V
VDD
= 3.6V 0.7 * V
VDD
5.5
V
V
VDD
= 1.98V 0.7 * V
VDD
5.5
V
OL
Output low-level voltage
V
VDD
= 3.0V, I
OL
= 6mA 0.4
V
V
VDD
= 1.62V, I
OL
= 4mA 0.4
V
OH
Output high-level voltage
V
VDD
= 3.0V, I
OH
= 6mA V
VDD
- 0.4
V
V
VDD
= 1.62V, I
OH
= 4mA V
VDD
- 0.4
f
MAX
Output frequency
(2)
V
VDD
= 3.0V, load = 10pF 87
MHz
V
VDD
= 3.0V, load = 30pF 58
t
RISE
Rise time
(2)
V
VDD
= 3.0V, load = 10pF 2.3
ns
V
VDD
= 3.0V, load = 30pF 4.3
t
FALL
Fall time
(2)
V
VDD
= 3.0V, load = 10pF 1.9
V
VDD
= 3.0V, load = 30pF 3.7
I
LEAK
Input leakage current 5.5V, pull-up resistors disabled 10 µA
C
IN
Input capacitance
TQFP48 package 4.5
pF
QFN48 package 4.2
TLLGA48 package 4.2
TQFP64 package 4.6
QFN64 package 4.2
Table 35-9. TWI Pin Characteristics
(1)
Symbol Parameter Condition Min Typ Max Units
R
PULLUP
Pull-up resistance 25 35 60 kOhm
V
IL
Input low-level voltage
V
VDD
= 3.0V -0.3 0.3 * V
VDD
V
V
VDD
= 1.62V -0.3 0.3 * V
VDD
V
IH
Input high-level voltage
V
VDD
= 3.6V 0.7 * V
VDD
V
VDD
+ 0.3
V
V
VDD
= 1.98V 0.7 * V
VDD
V
VDD
+ 0.3
Input high-level voltage, 5V tolerant
SMBUS compliant pins
V
VDD
= 3.6V 0.7 * V
VDD
5.5
V
V
VDD
= 1.98V 0.7 * V
VDD
5.5