ATmega16U2 Atmel Corporation, ATmega16U2 Datasheet - Page 186
ATmega16U2
Manufacturer Part Number
ATmega16U2
Description
Manufacturer
Atmel Corporation
Specifications of ATmega16U2
Flash (kbytes)
16 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
12
Hardware Qtouch Acquisition
No
Max I/o Pins
22
Ext Interrupts
21
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
2
Uart
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
512
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
2
Output Compare Channels
5
Input Capture Channels
1
Pwm Channels
4
32khz Rtc
No
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA16U2
Manufacturer:
ATMEL
Quantity:
853
Company:
Part Number:
ATmega16U2-MU
Manufacturer:
RALINK
Quantity:
2 400
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20.3
20.3.1
7799D–AVR–11/10
USB Module Powering Options
Bus Powered device
Depending on the selected target application power supply (V
USB controller requires different powering schemes, see
Figure 20-2. Operating modes versus frequency and power-supply
The following figures show typical implementations for different powering schemes.
Figure 20-3. Typical Bus powered application with 5V I/O
VCC min
VBUS
UVSS
UDM
UDP
5.5
4.5
4.0
3.6
3.0
2.7
0
VCC (V)
USB compliant,
with internal regulator
USB not operational
1µF
USB compliant,
without internal regulator
UCAP
UVCC
UVSS
D+
D-
VSS
XTAL1
ATmega8U2/16U2/32U2
VCC
XTAL2
Figure 20-2 on page
Max
Operating Frequency (MHz)
AVCC
CC
16 MHz
2 MHz
8 MHz
), the ATmega8U2/16U2/32U2
186.
186
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