ATMEGA324PA-MCHR Atmel, ATMEGA324PA-MCHR Datasheet - Page 459

• Manufacturer Part Number: ATMEGA324PA-MCHR
• Description: MCU AVR 32KB FLASH 20 MHZ 44QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA324PA-MCHR

• 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: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

34. Datasheet Revision History
34.1
34.2
34.3
34.4
8152G–AVR–11/09
Rev. 8152G- 11/09
Rev. 8152F- 10/09
Rev. 8152E- 08/09
Rev. 8152D- 08/09
Please note that the referring page numbers in this section are referred to this document. The
referring revision in this section are referring to the document revision.
1.
2.
1.
2.
1.
2.
3.
4
5.
6.
7.
1.
2.
Added
Updated Assembly code example in
Added
Updated ordering information for 324PA
Removed
Updated
Updated
Updated
Updated
Updated
Updated ATmega164PA/324PA
Updated
Updated
ATmega1284P device and
Table on page 35,
”EEARH and EEARL – The EEPROM Address Register” on page
”Addressing the Flash During Self-Programming” on page 283,
”Serial Programming Pin Mapping” on page
”Register Summary” on page 442,
”Instruction Set Summary” on page 446,
”Ordering Information” for ATmega644PA device on page 424.
”ATmega644PA Typical Characteristics” on page 390
”RAMPZ – Extended Z-pointer Register for ELPM/SPM” on page 15.
ATmega164PA/324PA/644PA/1284P
Capacitance for Low-frequency Crystal Oscillator.
”Ordering Information” on page
Updated the datasheet.
”Watchdog Timer” on page
.
by removing RAMPZ register.
by removing ELPM mnemonics.
311.
449, MCU replaced by MCH.
56.
by removing RAMPZ.
24.
459