
74
XMEGA A3BU [DATASHEET]
8362F–AVR–02/2013
37.5
I/O Pin Characteristics
The I/O pins complies with the JEDEC LVTTL and LVCMOS specification and the high- and low level input and output
voltage limits reflect or exceed this specification.
Table 37-7. I/O pin characteristics.
Notes:
1.
The sum of all IOH for PORTA and PORTB must not exceed 100mA.
The sum of all IOH for PORTC, PORTD, PORTE must for each port not exceed 200mA.
The sum of all IOH for pins PF[0-4] on PORTF must not exceed 200mA.
The sum of all IOL for pins PF[6-7] on PORTF, PORTR and PDI must not exceed 100mA.
2. The sum of all I
OL for PORTA and PORTB must not exceed 100mA.
The sum of all IOL for PORTC, PORTD, PORTE must for each port not exceed 200mA.
The sum of all IOL for pins PF[0-4] on PORTF must not exceed 200mA.
The sum of all IOL for pins PF[6-7] on PORTF, PORTR and PDI must not exceed 100mA.
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
IOH
IOL
I/O pin source/sink current
-20
20
mA
VIH
High level input voltage
VCC = 2.7 - 3.6V
2
VCC+0.3
V
VCC = 2.0 - 2.7V
0.7*VCC
VCC+0.3
VCC = 1.6 - 2.0V
0.7*VCC
VCC+0.3
VIL
Low level input voltage
VCC = 2.7- 3.6V
-0.3
0.3*VCC
VCC = 2.0 - 2.7V
-0.3
0.3*VCC
VCC = 1.6 - 2.0V
-0.3
0.3*VCC
VOH
High level output voltage
VCC = 3.0 - 3.6V
IOH = -2mA
2.4
0.94*VCC
VCC = 2.3 - 2.7V
IOH = -1mA
2.0
0.96*VCC
IOH = -2mA
1.7
0.92*VCC
VCC = 3.3V
IOH = -8mA
2.6
2.9
VCC = 3.0V
IOH = -6mA
2.1
2.6
VCC = 1.8V
IOH = -2mA
1.4
1.6
VOL
Low level output voltage
VCC = 3.0 - 3.6V
IOL = 2mA
0.05*VCC
0.4
VCC = 2.3 - 2.7V
IOL = 1mA
0.03*VCC
0.4
IOL = 2mA
0.06*VCC
0.7
VCC = 3.3V
IOL = 15mA
0.4
0.76
VCC = 3.0V
IOL = 10mA
0.3
0.64
VCC = 1.8V
IOL = 5mA
0.3
0.46
IIN
Input leakage current
T = 25°C
<0.001
0.1
A
RP
I/O pin Pull/Bus-keeper resistor
25
k
RRST
Reset pin pull-up resistor
25
tr
Rise time
No load
4
ns
slew rate limitation
7