ATmega32U4 Atmel Corporation, ATmega32U4 Datasheet - Page 309
ATmega32U4
Manufacturer Part Number
ATmega32U4
Description
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
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Company
Part Number
Manufacturer
Quantity
Price
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1 000
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Company:
Part Number:
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Manufacturer:
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Manufacturer:
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20 000
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7766F–AVR–11/10
Table 24-4.
MUX5..0
010001
010010
010011
010100
010101
010110
010111
011000
011001
011010
011011
011100
011101
011110
011111
100000
100001
100010
100011
100100
100101
100110
100111
101000
101001
101010
101011
101100
101101
101110
101111
110000
110001
110010
110011
(1)
Single Ended Input
N/A
1.1V (V
0V (GND)
ADC8
ADC9
ADC10
ADC11
ADC12
ADC13
N/A
Temperature Sensor
N/A
Input Channel and Gain Selections (Continued)
Band Gap
)
Positive Differential Input
N/A
ADC4
ADC5
ADC6
ADC7
N/A
ADC1
ADC4
ADC5
ADC6
ADC7
ADC4
ADC5
ADC6
ADC7
ADC4
ADC5
ADC6
ADC7
Negative Differential Input
ADC1
ADC1
ADC1
ADC1
ADC0
ADC0
ADC0
ADC0
ADC0
ADC1
ADC1
ADC1
ADC1
ADC0
ADC0
ADC0
ADC0
ATmega16/32U4
Gain
1x
1x
1x
1x
40x
10x
10x
10x
10x
10x
10x
10x
10x
40x
40x
40x
40x
309
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