ATmega32U2 Atmel Corporation, ATmega32U2 Datasheet - Page 61
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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Table 10-6.
Table 10-7.
7799D–AVR–11/10
WDP3
WDP3
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
WDP2
WDP2
Watchdog Timer Prescale Select, DIV = 3 (CLKwdt = CLK128 / 7) (Continued)
0
0
1
1
1
1
Watchdog Timer Prescale Select, DIV = 4 (CLKwdt = CLK128 / 9)
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
WDP1
WDP1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
WDP0
WDP0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Number of WDT Oscillator
Cycles before 1st time-out
Number of WDT Oscillator
Cycles before 1st time-out
1024K (1048576) cycles
128K (131072) cycles
256K (262144) cycles
512K (524288) cycles
16K (16384) cycles
32K (32768) cycles
64K (65536) cycles
2K (2048) cycles
4K (4096) cycles
8K (8192) cycles
(Early warning)
(Early warning)
Early warning Typical
Early warning Typical
Reserved
Reserved
ATmega8U2/16U2/32U2
Time-out at
Time-out at
V
V
CC
CC
144 ms
288 ms
18.4 s
36.8 s
72ms
576 s
1.1 s
2.3 s
4.6 s
9.2 s
= 5.0V
= 5.0V
Reset/Interrupt Typical
Reset/Interrupt Typical
Time-out at
Time-out at
V
V
Watchdog
Watchdog
CC
CC
144 ms
288 ms
576 ms
1.15 s
36.8 s
18.4s
2.3 s
4.6 s
9.2 s
73 s
= 5.0V
= 5.0V
61
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