ATMEGA325P-20MU Atmel, ATMEGA325P-20MU Datasheet - Page 80
![IC MCU AVR 32K FLASH 64-QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
ATMEGA325P-20MU
Manufacturer Part Number
ATMEGA325P-20MU
Description
IC MCU AVR 32K FLASH 64-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA3250P-20AU.pdf
(364 pages)
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
ATMEGA325P-16MU
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13.3.6
80
ATmega325P/3250P
Alternate Functions of Port H
Table 13-15. Overriding Signals for Alternate Functions in PG4 and PG3
Port H is only present in ATmega3250P. The alternate pin configuration is as follows:
Table 13-16. Port H Pins Alternate Functions
The alternate pin configuration is as follows:
• PCINT23 – Port H, Bit 7
PCINT23, Pin Change Interrupt Source 23: The PH7 pin can serve as an external interrupt
source.
• PCINT22 – Port H, Bit 6
PCINT22, Pin Change Interrupt Source 22: The PH6 pin can serve as an external interrupt
source.
• PCINT21 – Port H, Bit 5
PCINT21, Pin Change Interrupt Source 21: The PH5 pin can serve as an external interrupt
source.
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Port Pin
PH7
PH6
PH5
PH4
PH3
PH2
PH1
PH0
Alternate Function
PCINT23(Pin Change Interrupt23)
PCINT22 (Pin Change Interrupt22)
PCINT21(Pin Change Interrupt21)
PCINT20(Pin Change Interrupt20)
PCINT19 (Pin Change Interrupt19)
PCINT18(Pin Change Interrupt18)
PCINT17(Pin Change Interrupt17)
PCINT16(Pin Change Interrupt16)
PG4/T0
0
0
0
0
0
0
–
0
0
T0 INPUT
–
PG3/T1
0
0
0
0
0
0
–
0
0
T1 INPUT
–
8023F–AVR–07/09
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