ATmega324PA Atmel Corporation, ATmega324PA Datasheet - Page 298
ATmega324PA
Manufacturer Part Number
ATmega324PA
Description
Manufacturer
Atmel Corporation
Specifications of ATmega324PA
Flash (kbytes)
32 Kbytes
Pin Count
44
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
32
Ext Interrupts
32
Usb Speed
No
Usb Interface
No
Spi
3
Twi (i2c)
1
Uart
2
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
No
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 85
I/o Supply Class
1.8 to 5.5
Operating Voltage (vcc)
1.8 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
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27.2
8272C–AVR–06/11
Fuse Bits
Table 27-2.
Notes:
The ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P has four Fuse bytes.
27-3
the Fuse bytes. Note that the fuses are read as logical zero, “0”, if they are programmed.
Table 27-3.
Note:
–
–
–
–
–
BODLEVEL2
BODLEVEL1
BODLEVEL0
BLB1 Mode
Fuse Low Byte
-
Table 27-5
1
2
3
4
1. Program the Fuse bits and Boot Lock bits before programming the LB1 and LB2.
2. “1” means unprogrammed, “0” means programmed
1. See
Memory Lock Bits
(1)
(1)
(1)
ATmega164A/PA/324A/PA/644A/PA/1284/P
Lock Bit Protection Modes
Extended Fuse Byte
”System and Reset Characteristics” on page 337
BLB12
describe briefly the functionality of all the fuses and how they are mapped into
1
1
0
0
7
6
5
4
3
2
1
0
Bit No
BLB11
1
0
0
1
Description
–
–
–
–
–
Brown-out Detector trigger level
Brown-out Detector trigger level
Brown-out Detector trigger level
Protection Type
No restrictions for SPM or (E)LPM accessing the Boot Loader
section.
SPM is not allowed to write to the Boot Loader section.
SPM is not allowed to write to the Boot Loader section, and
(E)LPM executing from the Application section is not allowed to
read from the Boot Loader section. If Interrupt Vectors are
placed in the Application section, interrupts are disabled while
executing from the Boot Loader section.
(E)LPM executing from the Application section is not allowed to
read from the Boot Loader section. If Interrupt Vectors are
placed in the Application section, interrupts are disabled while
executing from the Boot Loader section.
(1)(2)
(Continued)
for BODLEVEL Fuse decoding.
Default Value
1
1
1
1
1
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
Table
298
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