ATMEGA324PA-AU Atmel, ATMEGA324PA-AU Datasheet - Page 260
ATMEGA324PA-AU
Manufacturer Part Number
ATMEGA324PA-AU
Description
MCU AVR 32K FLASH 20MHZ 40-TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets
1.ATMEGA644PA-PU.pdf
(581 pages)
2.ATMEGA644PA-PU.pdf
(32 pages)
3.ATMEGA164PA-AN.pdf
(30 pages)
Specifications of ATMEGA324PA-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
32
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
44-TQFP, 44-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
32
Number Of Timers
3
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATQT600
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)
32
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
44
Package Type
TQFP
Package
44TQFP
Family Name
ATmega
Maximum Speed
20 MHz
Operating Supply Voltage
2.5|3.3|5 V
Controller Family/series
AVR MEGA
No. Of I/o's
32
Eeprom Memory Size
1KB
Ram Memory Size
2KB
Cpu Speed
20MHz
Rohs Compliant
Yes
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA324PA-AU
Manufacturer:
ATM
Quantity:
5 000
Company:
Part Number:
ATMEGA324PA-AU
Manufacturer:
ATMEL
Quantity:
2 089
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- Download datasheet (27Mb)
22.9.5
8272A–AVR–01/10
DIDR0 – Digital Input Disable Register 0
• Bit 7, 5:3 – Res: Reserved Bits
T h e s e
ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P. For ensuring compability with
future devices, these bits must be written zero when ADCSRB is written.
• Bit 2:0 – ADTS2:0: ADC Auto Trigger Source
If ADATE in ADCSRA is written to one, the value of these bits selects which source will trigger
an ADC conversion. If ADATE is cleared, the ADTS[2:0] settings will have no effect. A conver-
sion will be triggered by the rising edge of the selected Interrupt Flag. Note that switching from a
trigger source that is cleared to a trigger source that is set, will generate a positive edge on the
trigger signal. If ADEN in ADCSRA is set, this will start a conversion. Switching to Free Running
mode (ADTS[2:0]=0) will not cause a trigger event, even if the ADC Interrupt Flag is set
Table 22-6.
• Bit 7..0 – ADC7D..ADC0D: ADC7..0 Digital Input Disable
When this bit is written logic one, the digital input buffer on the corresponding ADC pin is dis-
abled. The corresponding PIN Register bit will always read as zero when this bit is set. When an
analog signal is applied to the ADC7..0 pin and the digital input from this pin is not needed, this
bit should be written logic one to reduce power consumption in the digital input buffer.
164A/164PA/324A/324PA/644A/644PA/1284/1284P
Bit
(0x7E)
Read/Write
Initial Value
ADTS2
0
0
0
0
1
1
1
1
b i t s
ADC7D
ADC Auto Trigger Source Selections
R/W
7
0
ADTS1
0
0
1
1
0
0
1
1
ADC6D
a r e
R/W
6
0
ADC5D
ADTS0
R/W
r e s e r v e d
5
0
0
1
0
1
0
1
0
1
ADC4D
R/W
4
0
Trigger Source
Free Running mode
Analog Comparator
External Interrupt Request 0
Timer/Counter0 Compare Match
Timer/Counter0 Overflow
Timer/Counter1 Compare Match B
Timer/Counter1 Overflow
Timer/Counter1 Capture Event
f o r
ADC3D
R/W
3
0
f u t u r e
ADC2D
R/W
2
0
ADC1D
R/W
1
0
u s e
ADC0D
R/W
0
0
i n
.
DIDR0
260
t h e
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