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ATMEGA16HVB_1 Datasheet, PDF (234/273 Pages) ATMEL Corporation – 8-bit Microcontroller with 16K/32K Bytes In-System Programmable Flash
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ATmega16HVB/32HVB
32.12 General I/O Lines Characteristics
32.12.1 Port A and B Characteristics
Table 32-12. TA = -40 to 85°C, VCC = 3.3V (unless otherwise noted)
Symbol Parameter
Condition
Min.
VIL
Input Low Voltage, Except
RESET pin
-0.5
VIL1
Input Low Voltage,
RESET pin
VIH
Input High Voltage,
Except RESET pin
0.6VCC(2)
VIH1
Input High Voltage,
RESET pin
0.9VCC(2)
VOL
Output Low Voltage
IOL = 5mA
VOH
Output High Voltage
IOH = 2 mA
2.3
IIL
Input Leakage
Current I/O Pin
Pin low
(absolute value)
IIH
Input Leakage
Current I/O Pin
Pin high
(absolute value)
RRST
Reset Pull-up Resistor
30
RPU
I/O Pin Pull-up Resistor
20
Typ.
Max.
0.3VCC(1)
0.3VCC(1)
VCC + 0.5
VCC + 0.5
0.5
1
1
60
50
Units
V
µA
kΩ
Notes:
1. “Max” means the highest value where the pin is guaranteed to be read as low
2. “Min” means the lowest value where the pin is guaranteed to be read as high
3. Although each I/O port can sink more than the test conditions (5 mA at VCC = 3.3V) under steady state conditions (non-tran-
sient), the following must be observed:
- The sum of all IOL should not exceed 20 mA.
If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater
than the listed test condition.
4. Although each I/O port can source more than the test conditions (2 mA at VCC = 3.3V) under steady state conditions (non-
transient), the following must be observed:
- The sum of all IOH should not exceed 2 mA.
32.12.2 Port C Characteristics
Table 32-13. PC0-PC4 Characteristics
Symbol Parameter
VIL
VIH
VOL(1)
Input Low-voltage
Input High-voltage
Output Low-voltage
Condition
350 µA sink current
Note: 1. This values is based on characterization and is not tested in production.
Min
Max
Units
-0.5
0.8
2.1
5.5
V
0
0.4
Table 32-14. PC5 Characteristic
Symbol Parameter
VOL
Output Low-voltage
Condition
500 µA sink current
Min
Max
Units
0
0.2
V
8042A–AVR–07/09
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