ATmega644P Atmel Corporation, ATmega644P Datasheet - Page 2
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ATmega644P
Manufacturer Part Number
ATmega644P
Description
Manufacturer
Atmel Corporation
Specifications of ATmega644P
Flash (kbytes)
64 Kbytes
Pin Count
44
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
32
Ext Interrupts
32
Usb Speed
No
Usb Interface
No
Spi
3
Twi (i2c)
1
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
4
Eeprom (bytes)
2048
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8 to 5.5
Operating Voltage (vcc)
1.8 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA644P
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
ATmega644P-20AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
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Part Number:
ATmega644P-20MU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATmega644P-20PU
Manufacturer:
Atmel
Quantity:
1 984
Company:
Part Number:
ATmega644P-A15MZ
Manufacturer:
ATMEL
Quantity:
3 500
Part Number:
ATmega644P-A15MZ
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATmega644PA-AU
Manufacturer:
PHILIPS
Quantity:
450
Part Number:
ATmega644PA-AU
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
ATmega644PA-AUR
Manufacturer:
ATMEL
Quantity:
1 400
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1. Pin Configurations
1.1
8011O–AVR–07/10
Pinout - PDIP/TQFP/VQFN/QFN/MLF
Figure 1-1.
Note:
The large center pad underneath the VQFN/QFN/MLF package should be soldered to ground on
the board to ensure good mechanical stability.
(PCINT26/RXD1/INT0) PD2
Pinout ATmega164P/324P/644P
(PCINT24/RXD0) PD0
(PCINT25/TXD0) PD1
(PCINT13/MOSI) PB5
(PCINT14/MISO) PB6
(PCINT15/SCK) PB7
(PCINT28/XCK1/OC1B) PD4
(PCINT11/OC0A/AIN1) PB3
(PCINT26/RXD1/INT0) PD2
(PCINT27/TXD1/INT1) PD3
(PCINT10/INT2/AIN0) PB2
(PCINT30/OC2B/ICP) PD6
(PCINT12/OC0B/SS) PB4
(PCINT9/CLKO/T1) PB1
(PCINT8/XCK0/T0) PB0
(PCINT29/OC1A) PD5
(PCINT24/RXD0) PD0
(PCINT25/TXD0) PD1
(PCINT13/MOSI) PB5
(PCINT14/MISO) PB6
(PCINT15/SCK) PB7
RESET
XTAL2
XTAL1
GND
VCC
RESET
XTAL2
XTAL1
GND
VCC
TQFP/VQFN/QFN/MLF
PDIP
ATmega164P/324P/644P
PA0 (ADC0/PCINT0)
PA1 (ADC1/PCINT1)
PA2 (ADC2/PCINT2)
PA3 (ADC3/PCINT3)
PA4 (ADC4/PCINT4)
PA5 (ADC5/PCINT5)
PA6 (ADC6/PCINT6)
PA7 (ADC7/PCINT7)
AREF
GND
AVCC
PC7 (TOSC2/PCINT23)
PC6 (TOSC1/PCINT22)
PC5 (TDI/PCINT21)
PC4 (TDO/PCINT20)
PC3 (TMS/PCINT19)
PC2 (TCK/PCINT18)
PC1 (SDA/PCINT17)
PC0 (SCL/PCINT16)
PD7 (OC2A/PCINT31)
PA4 (ADC4/PCINT4)
PA5 (ADC5/PCINT5)
PA6 (ADC6/PCINT6)
PA7 (ADC7/PCINT7)
AREF
GND
AVCC
PC7 (TOSC2/PCINT23)
PC6 (TOSC1/PCINT22)
PC5 (TDI/PCINT21)
PC4 (TDO/PCINT20)
2
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