ATMEGA645P-MU Atmel, ATMEGA645P-MU Datasheet - Page 86
![IC MCU AVR 64K FLASH 64QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
ATMEGA645P-MU
Manufacturer Part Number
ATMEGA645P-MU
Description
IC MCU AVR 64K FLASH 64QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA645P-MU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
54
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K 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
64-VFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/645
• PCINT21 – Port H, Bit 5
PCINT21, Pin Change Interrupt Source 21: The PH5 pin can serve as an external interrupt
source.
• PCINT20 – Port H, Bit 4
PCINT20, Pin Change Interrupt Source 20: The PH4 pin can serve as an external interrupt
source.
• PCINT19– Port H, Bit 3
PCINT19, Pin Change Interrupt Source 19: The PH3 pin can serve as an external interrupt
source.
• PCINT18 – Port H, Bit 2
PCINT18, Pin Change Interrupt Source 18: The PH2 pin can serve as an external interrupt
source.
• PCINT17/SEG – Port H, Bit 1
PCINT17, Pin Change Interrupt Source 17: The P1 pin can serve as an external interrupt
source.
• PCINT16 – Port H, Bit 0
PCINT16, Pin Change Interrupt Source 16: The PH0 pin can serve as an external interrupt
source.
Table 13-17
shown in
Table 13-17. Overriding Signals for Alternate Functions in PH7:PH4
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Figure 13-5 on page
and
PH7/PCINT23
0
0
0
0
0
0
–
PCINT23 • PCIE0
0
PCINT23 INPUT
–
Table 13-18
relates the alternate functions of Port H to the overriding signals
74.
PH6/PCINT22
0
0
0
0
0
0
–
PCINT22 • PCIE0
0
PCINT22 INPUT
–
PH5/PCINT21
0
0
0
0
0
0
–
PCINT21 • PCIE0
0
PCINT21 INPUT
–
PH4/PCINT20
0
0
0
0
0
0
–
PCINT20 • PCIE0
0
PCINT20 INPUT
–
8285B–AVR–03/11
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