ATmega32M1 Atmel Corporation, ATmega32M1 Datasheet - Page 30
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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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30
Calibrated Internal RC Oscillator
ATmega16M1/32M1/64M1
Table 8-3.
Notes:
The CKSEL0 Fuse together with the SUT1..0 Fuses select the start-up times as shown in
8-4.
Table 8-4.
Notes:
By default, the Internal RC OScillator provides an approximate 8.0MHz clock. Though voltage
and temperature dependent, this clock can be very accurately calibrated by the user. The device
is shipped with the CKDIV8 Fuse programmed. See
more details.
CKSEL0
CKSEL3..1
100
0
0
0
0
1
1
1
1
101
110
111
(2)
1. The frequency ranges are preliminary values. Actual values are TBD.
2. This option should not be used with crystals, only with ceramic resonators.
1. These options should only be used when not operating close to the maximum frequency of the
2. These options are intended for use with ceramic resonators and will ensure frequency stability
device, and only if frequency stability at start-up is not important for the application. These
options are not suitable for crystals
at start-up. They can also be used with crystals when not operating close to the maximum fre-
quency of the device, and if frequency stability at start-up is not important for the application
SUT1..0
Crystal Oscillator Operating Modes
Start-up Times for the Oscillator Clock Selection
00
01
10
11
00
01
10
11
Frequency Range
Start-up Time from
Power-down and
8.0 -16.0
0.4 - 0.9
0.9 - 3.0
3.0 - 8.0
Power-save
258 CK
258 CK
1K CK
1K CK
1K CK
16K CK
16K CK
16K CK
(1)
(2)
(2)
(2)
(1)
(1)
(MHz)
Additional Delay
Recommended Range for Capacitors C1 and
14CK + 4.1ms
14CK + 4.1ms
14CK + 4.1ms
14CK + 65ms
14CK + 65ms
14CK + 65ms
(V
from Reset
“System Clock Prescaler” on page 34
CC
14CK
14CK
= 5.0V)
C2 for Use with Crystals (pF)
12 - 22
12 - 22
12 - 22
Recommended Usage
Ceramic resonator, fast
rising power
Ceramic resonator, slowly
rising power
Ceramic resonator, BOD
enabled
Ceramic resonator, fast
rising power
Ceramic resonator, slowly
rising power
Crystal Oscillator, BOD
enabled
Crystal Oscillator, fast
rising power
Crystal Oscillator, slowly
rising power
–
8209D–AVR–11/10
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