ATmega328P Automotive Atmel Corporation, ATmega328P Automotive Datasheet - Page 170
![no-image](/images/manufacturer_photos/0/0/79/atmel_corporation_sml.jpg)
ATmega328P Automotive
Manufacturer Part Number
ATmega328P Automotive
Description
Manufacturer
Atmel Corporation
Specifications of ATmega328P Automotive
Flash (kbytes)
32 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
23
Ext Interrupts
24
Usb Speed
No
Usb Interface
No
Spi
2
Twi (i2c)
1
Uart
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
2
Eeprom (bytes)
1024
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 125
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
- Current page: 170 of 345
- Download datasheet (6Mb)
19.3.2
170
ATmega328P [Preliminary]
Double Speed Operation (U2Xn)
Table 19-1
ing the UBRRn value for each mode of operation using an internally generated clock source.
Table 19-1.
Note:
Some examples of UBRRn values for some system clock frequencies are found in
(see
The transfer rate can be doubled by setting the U2Xn bit in UCSRnA. Setting this bit only has
effect for the asynchronous operation. Set this bit to zero when using synchronous operation.
Setting this bit will reduce the divisor of the baud rate divider from 16 to 8, effectively doubling
the transfer rate for asynchronous communication. Note however that the Receiver will in this
case only use half the number of samples (reduced from 16 to 8) for data sampling and clock
recovery, and therefore a more accurate baud rate setting and system clock are required when
this mode is used. For the Transmitter, there are no downsides.
Operating Mode
Asynchronous Normal mode
(U2Xn = 0)
Asynchronous Double Speed
mode (U2Xn = 1)
Synchronous Master mode
page
BAUD
f
UBRRn
OSC
1. The baud rate is defined to be the transfer rate in bit per second (bps)
192).
contains equations for calculating the baud rate (in bits per second) and for calculat-
Equations for Calculating Baud Rate Register Setting
Baud rate (in bits per second, bps)
System Oscillator clock frequency
Contents of the UBRRnH and UBRRnL Registers, (0-4095)
Equation for Calculating Baud
BAUD
BAUD
BAUD
=
=
=
Rate
----------------------------------------- -
16 UBRRn
-------------------------------------- -
8 UBRRn
-------------------------------------- -
2 UBRRn
(1)
f
f
f
OSC
OSC
OSC
+
+
+
1
1
1
UBRRn
UBRRn
UBRRn
Equation for Calculating
UBRRn Value
=
=
=
----------------------- - 1
16BAUD
------------------- - 1
8BAUD
------------------- - 1
2BAUD
f
f
f
OSC
OSC
OSC
7810A–AVR–11/09
Table 19-9
–
–
–
Related parts for ATmega328P Automotive
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ATmega328P](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
![atmega328p-20mu](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Atmega88p 8-bit Microcontroller With 8k Bytes In-system Programmable Flash
Manufacturer:
ATMEL Corporation
Datasheet:
![ATMEGA328P/V](/images/no-image3.png)
Part Number:
Description:
8-bit Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
![ATMEGA328-MU](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC MCU AVR 32K FLASH 32QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA328-AU](/photos/6/91/69154/313-32-tqfp_tmb.jpg)
Part Number:
Description:
IC MCU AVR 32K FLASH 32TQFP
Manufacturer:
Atmel
Datasheet:
![ATmega328](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
![ATMEGA328-PU](/photos/7/21/72189/453-28-dip_tmb.jpg)
Part Number:
Description:
IC MCU AVR 32K FLASH 28PDIP
Manufacturer:
Atmel
Datasheet:
![ATMEGA328-MMHR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM 20 MHZ GRN
Manufacturer:
Atmel
![ATMEGA328-AUR](/photos/6/91/69154/313-32-tqfp_tmb.jpg)
Part Number:
Description:
IC MCU AVR 32K FLASH 32TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA328-MUR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC MCU AVR 32K FLASH 32QFN
Manufacturer:
Atmel
Datasheet:
![A000046](/photos/15/92/159298/arduinounofront_tmb.jpg)
Part Number:
Description:
MCU, MPU & DSP Development Tools Uno
Manufacturer:
Arduino
Datasheet:
![A000048](/photos/18/99/189989/4243185_tmb.jpg)
Part Number:
Description:
ATMEGA328 MCU IC W/ Arduino UNO Bootloader
Manufacturer:
Arduino
Datasheet:
![A000004](/photos/36/49/364973/arduino_mini_tmb.jpg)
Part Number:
Description:
MCU, MPU & DSP Development Tools MINI LITE
Manufacturer:
Arduino
Datasheet:
![A000003](/photos/36/49/364973/arduino_mini_tmb.jpg)
Part Number:
Description:
MCU, MPU & DSP Development Tools MINI
Manufacturer:
Arduino
Datasheet: