ATmega329P Atmel Corporation, ATmega329P Datasheet - Page 337

• Manufacturer Part Number: ATmega329P
• Manufacturer: Atmel Corporation

Specifications of ATmega329P

• Flash (kbytes): 32 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 54
• Ext Interrupts: 17
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Segment Lcd: 100
• 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: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

28.7
28.8
8021G–AVR–03/11
Enhanced Power-on Reset
Brown-out Detection
T h i s
ATmega329P/ATmega3290P. The table below describes the characteristics of this power-on
reset and it is valid for the following devices only:
• ATmega329P revision C and newer
• ATmega3290P revision C and newer
Table 28-8.
Notes:
Table 28-9.
Note:
Symbol
SR
V
POT
ON
BODLEVEL 1:0 Fuses
i m p l e m e n t a t i o n
1. Values are guidelines only.
2. The Power-on Reset will not work unless the supply voltage has been below V
1. V
this is the case, the device is tested down to V
antees that a Brown-Out Reset will occur before V
operation of the microcontroller is no longer guaranteed. The test is performed using
BODLEVEL = 10 for ATmega329P/3290PV and BODLEVEL = 01 for ATmega329P/3290P.
BOT
Parameter
Power-on Reset Threshold Voltage (rising)
Power-on Reset Threshold Voltage (falling)
Power-on Slope Rate
Reset, Brown-out and Internal Voltage Reference Characteristics
T
BODLEVEL Fuse Coding
A
may be below nominal minimum operating voltage for some devices. For devices where
11
10
01
00
= -40°C to 85°C
o f
p o w e r - o n
Min. V
(1)
1.7
2.5
4.1
BOT
r e s e t
(2)
CC
Typ V
= V
CC
e x i s t s
ATmega329P/3290P
1.8
2.7
4.3
BOT
BOD Disabled
drops to a voltage where correct
BOT
during the production test. This guar-
Min.
0.01
1.1
0.6
i n
n e w e r
Max V
Typ
1.4
1.3
2.9
4.5
2
BOT
(1)
Max
v e r s i o n s
1.6
1.6
,
10
POT
(falling)
Units
Units
V/ms
V
V
V
337
o f