ATmega329P Atmel Corporation, ATmega329P Datasheet - Page 258

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ATmega329P

Manufacturer Part Number
ATmega329P
Description
Manufacturer
Atmel Corporation
Datasheets

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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8021G–AVR–03/11
Control corresponds to the Data Direction – DD Register, and the Pull-up Enable – PUExn – cor-
responds to logic expression PUD · DDxn · PORTxn.
Digital alternate port functions are connected outside the dotted box in
scan chain read the actual pin value. For Analog function, there is a direct connection from the
external pin to the analog circuit, and a scan chain is inserted on the interface between the digi-
tal logic and the analog circuitry.
Figure 25-2. Boundary-scan Cell for Bi-directional Port Pin with Pull-up Function.
Pullup Enable (PUE)
Output Control (OC)
Output Data (OD)
Input Data (ID)
0
1
From Last Cell
0
1
0
1
0
1
ShiftDR
ClockDR
D
D
D
FF2
FF1
FF0
To Next Cell
Q
Q
Q
UpdateDR
D
G
D
G
D
G
LD2
LD1
LD0
ATmega329P/3290P
Q
Q
Q
0
1
0
1
0
1
EXTEST
Figure 25-3
Vcc
to make the
258

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