ATmega328P Automotive Atmel Corporation, ATmega328P Automotive Datasheet - Page 16

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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
7. AVR Memories
7.1
7.2
16
Overview
In-System Reprogrammable Flash Program Memory
ATmega328P [Preliminary]
This section describes the different memories in the ATmega328P. The AVR architecture has
two main memory spaces, the Data Memory and the Program Memory space. In addition, the
ATmega328P features an EEPROM Memory for data storage. All three memory spaces are lin-
ear and regular.
The ATmega328P contains 32K bytes On-chip In-System Reprogrammable Flash memory for
program storage. Since all AVR instructions are 16 or 32 bits wide, the Flash is organized as
16K x 16. For software security, the Flash Program memory space is divided into two sections,
Boot Loader Section and Application Program Section in ATmega328P. See SELFPRGEN
description in section
269
The Flash memory has an endurance of at least 10,000 write/erase cycles. The ATmega328P
Program Counter (PC) is 14 bits wide, thus addressing the 16K program memory locations. The
operation of Boot Program section and associated Boot Lock bits for software protection are
described in detail in
Loader Support – Read-While-Write Self-Programming, ATmega88P, ATmega168P and
ATmega328P” on page
tion on Flash Programming in SPI- or Parallel Programming mode.
Constant tables can be allocated within the entire program memory address space (see the LPM
– Load Program Memory instruction description).
Timing diagrams for instruction fetch and execution are presented in
ing” on page
and
page
13.
284for more details.
“SPMCSR – Store Program Memory Control and Status Register” on page
“Self-Programming the Flash, ATmega328P” on page 263
271.
“Memory Programming” on page 286
contains a detailed descrip-
“Instruction Execution Tim-
7810A–AVR–11/09
and
“Boot

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