ATmega32M1 Atmel Corporation, ATmega32M1 Datasheet - Page 243
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ATmega32M1
Manufacturer Part Number
ATmega32M1
Description
Manufacturer
Atmel Corporation
Specifications of ATmega32M1
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
27
Ext Interrupts
27
Usb Speed
No
Usb Interface
No
Spi
1
Uart
1
Can
1
Lin
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
11
Adc Resolution (bits)
10
Adc Speed (ksps)
125
Analog Comparators
4
Resistive Touch Screen
No
Dac Channels
1
Dac Resolution (bits)
10
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
2
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
14
Input Capture Channels
1
Pwm Channels
10
32khz Rtc
No
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATmega32M1-15AD
Manufacturer:
ATMEL
Quantity:
1 448
Part Number:
ATmega32M1-15AD
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATmega32M1-AU
Manufacturer:
TYCO
Quantity:
210
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21.10.2
21.10.3
8209D–AVR–11/10
Bit 4:0 – MUX[4:0]: ADC Channel Selection Bits
ADCSRA – ADC Control and Status Register A
These 4 bits determine which analog inputs are connected to the ADC input. The different set-
ting are shown in
Table 21-5.
If these bits are changed during a conversion, the change will not take effect until this conversion
is complete (it means while the ADIF bit in ADCSRA register is set).
Bit
Read/Write
Initial Value
• Bit 7 – ADEN: ADC Enable Bit
Set this bit to enable the ADC.
Clear this bit to disable the ADC.
Clearing this bit while a conversion is running will take effect at the end of the conversion.
MUX[4:0]
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
10000
10001
10010
10011
101xx
1xxxx
ADC Input Channel Selection
ADEN
R/W
7
0
Table
21-5.
ADSC
R/W
6
0
ADATE
R/W
5
0
ADIF
R
4
0
ATmega16M1/32M1/64M1
AMP1 (- is ADC8, + is ADC9)
ADIE
R/W
3
0
AMP2 (- is ADC6)
Temp Sensor
Description
Reserved
Reserved
Reserved
Bandgap
ADC10
VCC/4
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
ADC6
ADC7
ADC8
ADC9
AMP0
ISRC
GND
ADPS2
R/W
2
0
ADPS1
R/W
1
0
ADPS0
R/W
0
0
ADCSRA
243
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