ATmega329P Atmel Corporation, ATmega329P Datasheet - Page 337
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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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28.7
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
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