ATmega32U4 Atmel Corporation, ATmega32U4 Datasheet - Page 378

• Manufacturer Part Number: ATmega32U4
• Manufacturer: Atmel Corporation

Specifications of ATmega32U4

• Flash (kbytes): 32 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 14
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 26
• Ext Interrupts: 13
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 12
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 3.3
• Eeprom (bytes): 1024
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 4
• Output Compare Channels: 12
• Input Capture Channels: 2
• Pwm Channels: 8
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

29. Electrical Characteristics
29.1
29.2
T
7766F–AVR–11/10
A
Operating Temperature.................................... -40°C to +85°C
Storage Temperature ..................................... -65°C to +150°C
Voltage on any Pin except RESET and VBUS
with respect to Ground
Voltage on RESET with respect to Ground......-0.5V to +13.0V
Voltage on VBUS with respect to Ground..........-0.5V to +6.0V
Maximum Operating Voltage ............................................ 6.0V
DC Current per I/O Pin ............................................... 40.0 mA
DC Current
Symbol
V
V
V
V
V
V
V
V
I
I
R
R
IL
IH
IL
IL1
IL2
IH
IH1
IH2
OL
OH
RST
PU
= -40°C to 85°C, V
Absolute Maximum Ratings*
DC Characteristics
Parameter
Input Low
Voltage,Except XTAL1
and Reset pin
Input Low Voltage,
XTAL1 pin
Input Low Voltage,
RESET pin
Input High Voltage,
Except XTAL1 and
RESET pins
Input High Voltage,
XTAL1 pin
Input High Voltage,
RESET pin
Output Low Voltage
Output High Voltage
Input Leakage
Current I/O Pin
Input Leakage
Current I/O Pin
Reset Pull-up Resistor
I/O Pin Pull-up Resistor
V
CC
and GND Pins................................ 200.0 mA
CC
(8)
.............................-0.5V to V
= 2.7V to 5.5V (unless otherwise noted)
(3)
(4)
,
,
Condition
V
V
V
V
V
V
I
I
I
I
V
(absolute value)
V
(absolute value)
OL
OL
OH
OH
CC
CC
CC
CC
CC
CC
CC
CC
= 10mA, V
= 5mA, V
= -10mA, V
= -5mA, V
= 2.7V - 5.5V
= 2.7V - 5.5V
= 2.7V - 5.5V
= 2.7V - 5.5V
= 2.7V - 5.5V
= 2.7V - 5.5V
= 5.5V, pin low
= 5.5V, pin high
CC
CC
CC
CC
CC
= 3V
+0.5V
= 3V
= 5V
= 5V
*NOTICE:
0.2V
0.7V
0.9V
(LVTTL)
Min.
-0.5
-0.5
-0.5
CC
4.2
2.3
30
20
2)
+0.9V
CC
CC
(5)
(2)
(2)
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect
device reliability.
(
Typ.
ATmega16/32U4
V
V
V
0.1V
0.1V
(LVTTL)
0.2V
Max.
0.1V
CC
CC
CC
0.7
0.5
50
60
1
1
+ 0.5
+ 0.5
+ 0.5
CC
CC
CC
(1)
(5)
(1)
(1)
-
Units
kΩ
kΩ
µA
µA
V
V
V
V
V
V
V
V
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