ATMEGA325P-20MU Atmel, ATMEGA325P-20MU Datasheet - Page 342

• Manufacturer Part Number: ATMEGA325P-20MU
• Description: IC MCU AVR 32K FLASH 64-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA325P-20MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• 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): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-MLF®, 64-QFN
• Processor Series: ATMEGA32x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: SPI, UART, USI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 54
• 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
• For Use With: ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ATMEGA325P-16MU; ATMEGA325P-16MU

28. Register Summary
8023F–AVR–07/09
Address
(0xFE)
(0xFD)
(0xFC)
(0xFB)
(0xFA)
(0xEF)
(0xEE)
(0xED)
(0xEC)
(0xEB)
(0xEA)
(0xDF)
(0xDE)
(0xDD)
(0xDC)
(0xDB)
(0xDA)
(0xD9)
(0xD8)
(0xD7)
(0xD6)
(0xD5)
(0xD4)
(0xD3)
(0xD2)
(0xD1)
(0xD0)
(0xCF)
(0xCE)
(0xCD)
(0xCC)
(0xCB)
(0xCA)
(0xC9)
(0xC8)
(0xC7)
(0xC6)
(0xC5)
(0xFF)
(0xF9)
(0xF8)
(0xF7)
(0xF6)
(0xF5)
(0xF4)
(0xF3)
(0xF2)
(0xF1)
(0xF0)
(0xE9)
(0xE8)
(0xE7)
(0xE6)
(0xE5)
(0xE4)
(0xE3)
(0xE2)
(0xE1)
(0xE0)
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
PORTJ
DDRJ
PINJ
PORTH
DDRH
PINH
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
UDR0
UBRR0H
Name
PORTH7
PINH7
Bit 7
DDH7
Note:
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
-
Registers with bold type only available in ATmega3250P.
PORTH6
PORTJ6
Bit 6
PINH6
PINJ6
DDH6
DDJ6
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
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-
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-
-
-
-
-
PORTH5
PORTJ5
Bit 5
PINH5
PINJ5
DDH5
DDJ5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
-
-
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-
-
-
-
-
-
-
-
-
-
-
PORTH4
PORTJ4
Bit 4
PINH4
PINJ4
DDH4
DDJ4
USART0 Data Register
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
-
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-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
PORTH3
PORTJ3
Bit 3
PINH3
PINJ3
DDH3
DDJ3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
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-
-
-
-
-
-
-
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-
-
-
-
-
-
USART0 Baud Rate Register High
PORTH2
PORTJ2
Bit 2
PINH2
PINJ2
DDH2
DDJ2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
-
-
ATmega325P/3250P
PORTH1
PORTJ1
PINH1
Bit 1
PINJ1
DDH1
DDJ1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
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-
PORTH0
PORTJ0
PINH0
Bit 0
PINJ0
DDH0
DDJ0
-
-
-
-
-
-
-
-
-
-
-
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