ATmega329P Atmel Corporation, ATmega329P Datasheet - Page 336

• 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

28.5
28.6
8021G–AVR–03/11
System and Reset Characteristics
Standard Power-on Reset
Table 28-6.
Note:
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 B and older
• ATmega3290P revision B and older
Table 28-7.
Note:
Symbol
V
SR
Symbol
POT
V
V
t
t
V
t
I
RST
HYST
BOD
ON
RST
BG
BG
BG
i m p l e m e n t a t i o n
1. The Power-on Reset will not work unless the supply voltage has been below V
1. The Power-on Reset will not work unless the supply voltage has been below V
Parameter
Minimum pulse width on RESET
Pin
Brown-out Detector Hysteresis
Min Pulse Width on Brown-out
Reset
Bandgap reference voltage
Bandgap reference start-up time
Bandgap reference current
consumption
RESET Pin Threshold Voltage
Parameter
Power-on Reset Threshold Voltage (rising)
Power-on Reset Threshold Voltage (falling)
Power-on Slope Rate
Reset, Brown-out, and Internal Voltage Characteristics
Reset, Brown-out, and Internal Voltage Reference Characteristics,
T
A
= -40°C to 85°C
o f
p o w e r - o n
V
V
V
Condition
T
T
T
V
V
CC
CC
CC
r e s e t
A
A
A
CC
CC
= 25°C
= 25°C
= 25°C
= 2.7V,
= 2.7V,
= 2.7V,
= 3V
= 3V
(1)
e x i s t e d
ATmega329P/3290P
0.2 V
Min
1.0
CC
Min.
0.05
0.01
0.7
i n
Typ
1.1
50
40
15
2
e a r l y
Typ
1.0
0.9
0.9 V
Max
2.5
1.2
70
Max
v e r s i o n s
1.4
1.3
4.5
POT
POT
CC
(falling)
(falling)
Units
V/ms
Units
mV
V
V
µA
µs
µs
µs
V
V
336
o f