ATmega32U2 Atmel Corporation, ATmega32U2 Datasheet - Page 34
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ATmega32U2
Manufacturer Part Number
ATmega32U2
Description
Manufacturer
Atmel Corporation
Specifications of ATmega32U2
Flash (kbytes)
32 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
20
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)
1
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
2
Output Compare Channels
5
Input Capture Channels
1
Pwm Channels
4
32khz Rtc
No
Calibrated Rc Oscillator
Yes
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7799D–AVR–11/10
Notes:
When this Oscillator is selected, start-up times are determined by the SUT Fuses as shown in
Table 8-5 on page
Table 8-7.
Note:
Power Conditions
BOD enabled
Fast rising power
Slowly rising power
1. The device is shipped with this option selected.
2. The frequency ranges are preliminary values. Actual values are TBD.
3. If 8 MHz frequency exceeds the specification of the device (depends on V
1. The device is shipped with this option selected.
Fuse can be programmed in order to divide the internal frequency by 8.
Start-up times for the internal calibrated RC Oscillator clock selection
31.
Start-up Time from Power-
down and Power-save
Reserved
6 CK
6 CK
6 CK
ATmega8U2/16U2/32U2
Additional Delay from
Reset (V
14 CK + 65 ms
14 CK + 4.1 ms
14 CK
CC
= 5.0V)
(1)
CC
), the CKDIV8
SUT1..0
00
01
10
11
34
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