ATmega32M1 Automotive Atmel Corporation, ATmega32M1 Automotive Datasheet - Page 33
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ATmega32M1 Automotive
Manufacturer Part Number
ATmega32M1 Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.ATMEGA16M1_AUTOMOTIVE.pdf
(12 pages)
3.ATMEGA16M1_AUTOMOTIVE.pdf
(25 pages)
4.ATMEGA16M1_AUTOMOTIVE.pdf
(367 pages)
Specifications of ATmega32M1 Automotive
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 150
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
- AT90CAN128_AUTOMOTIVE PDF datasheet
- ATMEGA16M1_AUTOMOTIVE PDF datasheet #2
- ATMEGA16M1_AUTOMOTIVE PDF datasheet #3
- ATMEGA16M1_AUTOMOTIVE PDF datasheet #4
- Current page: 33 of 367
- Download datasheet (7Mb)
5.5
7647G–AVR–09/11
Calibrated Internal RC Oscillator
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
37
This clock may be selected as the system clock by programming the CKSEL Fuses as shown
in
hardware loads the pre-programmed calibration value into the OSCCAL Register and thereby
automatically calibrates the RC Oscillator. The accuracy of this calibration is shown as Fac-
tory calibration in
By changing the OSCCAL register from SW, see
on page
tion. The accuracy of this calibration is shown as User calibration in
page
When this Oscillator is used as the chip clock, the Watchdog Oscillator will still be used for the
Watchdog Timer and for the Reset Time-out. For more information on the pre-programmed
calibration value, see the section.
Table 5-5.
Notes:
When this Oscillator is selected, start-up times are determined by the SUT Fuses as shown in
Table 5-6 on page
Table 5-6.
Note:
Power Conditions
BOD enabled
Fast rising power
Slowly rising power
Table 5-1 on page
for more details.
319.
1. The device is shipped with this option selected.
2. If 8MHz frequency exceeds the specification of the device (depends on V
2.
1. If the RSTDISBL fuse is programmed, this start-up time will be increased to
34, it is possible to get a higher calibration accuracy than by using the factory calibra-
Fuse can be programmed in order to divide the internal frequency by 8.
14CK + 4.1 ms to ensure programming mode can be entered.
The device is shipped with this option selected.
Frequency Range (MHz)
Internal Calibrated RC Oscillator Operating Modes
Start-up times for the internal calibrated RC Oscillator clock selection
Table 26-1 on page
33.
7.3 - 8.1
30. If selected, it will operate with no external components. During reset,
Power-down and Power-save
Start-up Time from
Atmel ATmega16/32/64/M1/C1
Reserved
319.
6 CK
6 CK
6 CK
“Oscillator Calibration Register – OSCCAL”
“System Clock Prescaler” on page
Additional Delay from
Reset (V
14CK + 65 ms
14CK + 4.1 ms
(1)(2)
CKSEL3..0
14CK
“Clock Characteristics” on
0010
CC
(1)
= 5.0V)
(2)
CC
), the CKDIV8
SUT1..0
00
01
10
11
33
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