
55
32117DS–AVR-01/12
AT32UC3C
7.5
I/O Pin Characteristics
Table 7-6.
Normal I/O Pin Characteristics
(1)Symbol
Parameter
Condition
Min
Typ
Max
Units
R
PULLUP
Pull-up resistance
VVDD = 3V
5
26
kOhm
V
VDD = 5V
5
16
kOhm
RPULLDOWN
Pull-down resistance
2
16
kOhm
VIL
Input low-level
voltage
VVDD = 3V
0.3*VVDDIO
V
VDD = 4.5V
0.3*V
VDDIO
V
IH
Input high-level
voltage
VVDD = 3.6V
0.7*VVDDIO
V
VVDD = 5.5V
0.7*VVDDIO
VOL
Output low-level
voltage
I
OL = -3.5 mA, pin drive x1
0.45
V
IOL = -14mA, pin drive x4
VOH
Output high-level
voltage
I
OH = 3.5 mA, pin drive x1
VVDD - 0.8
V
IOH = 14mA, pin drive x4
fMAX
VVDD = 3.0V
load = 10pF, pin drive x1
(2)35
MHz
load = 10pF, pin drive x2
(2)55
load = 10pF, pin drive x4
(2)70
load = 30pF, pin drive x1
(2)15
load = 30pF, pin drive x2
(2)30
load = 30pF, pin drive x4
(2)45
VVDD =4.5V
load = 10pF, pin drive
x1(2)50
load = 10pF, pin drive x2
(2)80
load = 10pF, pin drive x4
(2)95
load = 30pF, pin drive
x1(2)25
load = 30pF, pin drive x2
(2)40
load = 30pF, pin drive x4
(2)65