ATmega329P Atmel Corporation, ATmega329P Datasheet - Page 336
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ATmega329P
Manufacturer Part Number
ATmega329P
Description
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
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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
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