ATmega32U2 Atmel Corporation, ATmega32U2 Datasheet - Page 248
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- Current page: 248 of 309
- Download datasheet (6Mb)
7799D–AVR–11/10
Table 25-4.
Note:
Table 25-5.
Note:
The status of the Fuse bits is not affected by Chip Erase. Note that the Fuse bits are locked if
Lock bit1 (LB1) is programmed. Program the Fuse bits before programming the Lock bits.
Fuse High Byte
DWEN
RSTDSBL
SPIEN
WDTON
EESAVE
BOOTSZ1
BOOTSZ0
BOOTRST
Fuse Low Byte
CKDIV8
CKOUT
SUT1
SUT0
CKSEL3
CKSEL2
CKSEL1
CKSEL0
(1)
(4)
1. The SPIEN Fuse is not accessible in serial programming mode.
2. The default value of BOOTSZ1..0 results in maximum Boot Size. See
3. See
4. Never ship a product with the DWEN Fuse programmed regardless of the setting of Lock bits
1. The default value of SUT1..0 results in maximum start-up time for the default clock source.
2. The default setting of CKSEL3..0 results in External crystal Oscillator 8MHz. See
3. The CKOUT Fuse allow the system clock to be output on PORTC7. See
4. See
(3)
(4)
(3)
for details.
and RSTDSBL Fuse. A programmed DWEN Fuse enables some parts of the clock system to
be running in all sleep modes. This may increase the power consumption.
See
page 29
on page 35
Fuse High Byte
Fuse Low Byte
“WDTCSR – Watchdog Timer Control Register” on page 56
“System and Reset Characteristics” on page 267
“System Clock Prescaler” on page 35
for details.
Bit No
for details.
7
6
5
4
3
2
1
0
Bit No
7
6
5
4
3
2
1
0
Description
Enable debugWIRE (and disable
Reset capability
Disable Reset (pin can be used as
general purpose I/O)
Enable Serial Program and Data
Downloading
Watchdog Timer always ON
EEPROM memory is preserved
through the Chip Erase
Select Boot Size (see
details)
Select Boot Size (see
details)
Select Bootloader Address as Reset
Vector
Description
Divide clock by 8
Clock output
Select start-up time
Select start-up time
Select Clock source
Select Clock source
Select Clock source
Select Clock source
for details.
Table 25-9
Table 25-9
ATmega8U2/16U2/32U2
for details.
for
for
Default Value : 0xD9
1 (unprogrammed, debugWIRE
disabled)
1 (unprogrammed, Reset
enabled)
0 (programmed, SPI prog.
enabled)
1 (unprogrammed)
1 (unprogrammed, EEPROM
not preserved)
0 (programmed)
0 (programmed)
1 (unprogrammed, Reset
vector @0x0000)
Default Value : 0x5E
0 (programmed)
1 (unprogrammed)
0 (programmed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
0 (programmed)
for details.
Table 23-8 on page 239
“Clock Output Buffer”
(2)
(2)
(1)
(2)
(3)
(1)
(2)
(2)
(2)
Table 8-1 on
248
Related parts for ATmega32U2
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
U6046BREAR WINDOW HEATING TIMER / LONG-TERM TIMER
Manufacturer:
ATMEL Corporation
Datasheet: