ATmega329PA Atmel Corporation, ATmega329PA Datasheet - Page 315
ATmega329PA
Manufacturer Part Number
ATmega329PA
Description
Manufacturer
Atmel Corporation
Specifications of ATmega329PA
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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101
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8284D–AVR–6/11
ATmega169A/PA/329A/PA/3290A/PA/649A/P/6490A/P
Table 28-9.
Table 28-10. Pin Values Used to Enter Programming Mode
Table 28-11. XA1 and XA0 Coding
Table 28-12. Command Byte Bit Coding
Programming Mode
XA1
Signal Name in
0
0
1
1
Command Byte
RDY/BSY
PAGEL
1000 0000
0100 0000
0010 0000
0001 0000
0001 0001
DATA
BS1
XA0
XA1
BS2
WR
OE
PAGEL
XA1
XA0
BS1
Pin
Pin Name Mapping
XA0
0
1
0
1
Action when XTAL1 is Pulsed
Load Flash or EEPROM Address (High or low address byte determined by
BS1).
Load Data (High or Low data byte for Flash determined by BS1).
Load Command
No Action, Idle
Pin Name
PB7-0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PA0
Command Executed
Chip Erase
Write Fuse bits
Write Lock bits
Write Flash
Write EEPROM
I/O
I/O
O
I
I
I
I
I
I
I
Prog_enable[3]
Prog_enable[2]
Prog_enable[1]
Prog_enable[0]
Symbol
Function
0: Device is busy programming, 1: Device is ready for
new command.
Output Enable (Active low).
Write Pulse (Active low).
Byte Select 1 (“0” selects low byte, “1” selects high
byte).
XTAL Action Bit 0
XTAL Action Bit 1
Program Memory and EEPROM data Page Load.
Byte Select 2 (“0” selects low byte, “1” selects 2’nd high
byte).
Bi-directional Data bus (Output when OE is low).
Value
0
0
0
0
315
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