ATMEGA328P-AU Atmel, ATMEGA328P-AU Datasheet - Page 303

• Manufacturer Part Number: ATMEGA328P-AU
• Description: MCU AVR 32K FLASH 32TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA328P-AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Processor Series: ATMEGA32x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: 2-Wire, SPI, USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 23
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Cpu Family: ATmega
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 20MHz
• Total Internal Ram Size: 2KB
• # I/os (max): 23
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 2.5/3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 1.8V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 32
• Package Type: TQFP
• Controller Family/series: AVR MEGA
• No. Of I/o's: 23
• Eeprom Memory Size: 1KB
• Ram Memory Size: 2KB
• Cpu Speed: 20MHz
• Rohs Compliant: Yes
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ATMEGA328P-20AU; ATMEGA328P-20AU; Q3790246

28.6
28.6.1
8271D–AVR–05/11
Parallel Programming Parameters, Pin Mapping, and Commands
Signal Names
Table 28-12. No. of Words in a Page and No. of Pages in the EEPROM
This section describes how to parallel program and verify Flash Program memory, EEPROM
Data memory, Memory Lock bits, and Fuse bits in the ATmega48A/PA/88A/PA/168A/PA/328/P.
Pulses are assumed to be at least 250 ns unless otherwise noted.
In this section, some pins of the ATmega48A/PA/88A/PA/168A/PA/328/P are referenced by sig-
nal names describing their functionality during parallel programming, see
28-13. Pins not described in the following table are referenced by pin names.
The XA1/XA0 pins determine the action executed when the XTAL1 pin is given a positive pulse.
The bit coding is shown in
When pulsing WR or OE, the command loaded determines the action executed. The different
Commands are shown in
Figure 28-1. Parallel Programming
Note:
Device
ATmega168A
ATmega168PA
ATmega328
ATmega328P
V
CC
- 0.3V < AV
ATmega48A/PA/88A/PA/168A/PA/328/P
EEPROM
512bytes
512bytes
1Kbytes
1Kbytes
CC
Size
< V
Table
Table
RDY/BSY
CC
PAGEL
+12 V
BS1
XA0
XA1
BS2
WR
+ 0.3V, however, AV
OE
28-16.
28-15.
4bytes
4bytes
4bytes
4bytes
Page
Size
PD1
PD2
PD3
PD4
PD5
PD6
RESET
XTAL1
GND
PD7
PC2
PC[1:0]:PB[5:0]
PCWORD
EEA[1:0]
EEA[1:0]
EEA[1:0]
EEA[1:0]
CC
should always be within 4.5 - 5.5V
AVCC
VCC
+4.5 - 5.5V
+4.5 - 5.5V
Pages
No. of
128
128
256
256
DATA
PCPAGE
EEA[8:2]
EEA[8:2]
EEA[9:2]
EEA[9:2]
Figure 28-1
EEAMSB
and
8
8
9
9
Table
303