ATMEGA644P-A15MZ Atmel, ATMEGA644P-A15MZ Datasheet - Page 358

• Manufacturer Part Number: ATMEGA644P-A15MZ
• Description: MCU AVR 64KB FLASH 16MHZ 44QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA644P-A15MZ

• Package / Case: 44-VQFN Exposed Pad
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Speed: 16MHz
• Number Of I /o: 32
• Eeprom Size: 2K x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Program Memory Size: 64KB (64K x 8)
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Connectivity: I²C, SPI, UART/USART
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

358
0x3D (0x5D)
0x3C (0x5C)
0x2D (0x4D)
0x2C (0x4C)
0x1D (0x3D)
0x3F (0x5F)
0x3E (0x5E)
0x3B (0x5B)
0x3A (0x5A)
0x2F (0x4F)
0x2E (0x4E)
0x2B (0x4B)
0x2A (0x4A)
0x1F (0x3F)
0x1E (0x3E)
0x39 (0x59)
0x38 (0x58)
0x37 (0x57)
0x36 (0x56)
0x35 (0x55)
0x34 (0x54)
0x33 (0x53)
0x32 (0x52)
0x31 (0x51)
0x30 (0x50)
0x29 (0x49)
0x28 (0x48)
0x27 (0x47)
0x26 (0x46)
0x25 (0x45)
0x24 (0x44)
0x23 (0x43)
0x22 (0x42)
0x21 (0x41)
0x20 (0x40)
Address
(0x7D)
(0x7C)
(0x6D)
(0x6C)
(0x7E)
(0x7B)
(0x7A)
(0x79)
(0x78)
(0x77)
(0x76)
(0x75)
(0x74)
(0x73)
(0x72)
(0x71)
(0x70)
(0x6F)
(0x6E)
(0x6B)
(0x6A)
(0x69)
(0x68)
(0x67)
(0x66)
(0x65)
(0x64)
(0x63)
(0x62)
(0x61)
(0x60)
ATmega164P/324P/644P
DIDR0
Reserved
ADMUX
ADCSRB
ADCSRA
ADCH
ADCL
Reserved
Reserved
Reserved
Reserved
PCMSK3
Reserved
Reserved
TIMSK2
TIMSK1
TIMSK0
PCMSK2
PCMSK1
PCMSK0
Reserved
EICRA
PCICR
Reserved
OSCCAL
Reserved
PRR
Reserved
Reserved
CLKPR
WDTCSR
SREG
SPH
SPL
Reserved
Reserved
Reserved
Reserved
Reserved
SPMCSR
Reserved
MCUCR
MCUSR
SMCR
Reserved
OCDR
ACSR
Reserved
SPDR
SPSR
SPCR
GPIOR2
GPIOR1
Reserved
OCR0B
OCR0A
TCNT0
TCCR0B
TCCR0A
GTCCR
EEARH
EEARL
EEDR
EECR
GPIOR0
EIMSK
Name
PCINT31
PCINT23
PCINT15
COM0A1
CLKPCE
PCINT7
ADC7D
FOC0A
REFS1
PRTWI
SPMIE
ADEN
SPIF0
SPIE0
Bit 7
WDIF
SP15
ACD
TSM
SP7
JTD
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
I
-
-
-
-
-
-
-
-
-
-
-
-
-
-
PCINT30
PCINT22
PCINT14
COM0A0
RWWSB
PRTIM2
ADC6D
PCINT6
WCOL0
REFS0
FOC0B
ACME
BODS
ACBG
ADSC
WDIE
Bit 6
SP14
SPE0
SP6
T
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
PCINT29
PCINT21
PCINT13
COM0B1
PRTIM0
PCINT5
BODSE
DORD0
ADC5D
ADLAR
ADATE
EEPM1
SIGRD
WDP3
ISC21
Bit 5
ICIE1
SP13
ACO
SP5
H
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Timer/Counter0 Output Compare Register B
Timer/Counter0 Output Compare Register A
EEPROM Address Register Low Byte
General Purpose I/O Register 2
General Purpose I/O Register 1
General Purpose I/O Register 0
PRUSART1
Oscillator Calibration Register
ADC Data Register High byte
RWWSRE
ADC Data Register Low byte
PCINT12
COM0B0
PCINT28
PCINT20
PCINT4
ADC4D
MSTR0
EEPM0
WDCE
MUX4
ISC20
Bit 4
SP12
JTRF
ADIF
On-Chip Debug Register
EEPROM Data Register
PUD
SP4
ACI
Timer/Counter0 (8 Bit)
S
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
SPI 0 Data Register
PCINT27
PCINT19
PCINT11
CLKPS3
BLBSET
PRTIM1
WGM02
PCINT3
ADC3D
CPOL0
PCIE3
WDRF
EERIE
MUX3
ISC11
Bit 3
SP11
ADIE
WDE
ACIE
SM2
SP3
V
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
EEPROM Address Register High Byte
PCINT26
PCINT18
PCINT10
CLKPS2
PGWRT
EEMWE
OCIE2B
OCIE1B
OCIE0B
PCINT2
ADC2D
CPHA0
ADTS2
ADPS2
PRSPI
MUX2
ISC10
PCIE2
WDP2
BORF
Bit 2
SP10
ACIC
CS02
INT2
SM1
SP2
N
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
PRUSART0
PCINT25
PCINT17
CLKPS1
OCIE2A
OCIE1A
OCIE0A
WGM01
PCINT9
PCINT1
PGERS
ADC1D
ADPS1
EXTRF
ADTS1
SPR01
PCIE1
WDP1
IVSEL
ACIS1
EEWE
MUX1
ISC01
Bit 1
CS01
PSR2
SM0
INT1
SP9
SP1
Z
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
PSR54310
PCINT24
PCINT16
CLKPS0
WGM00
PCINT8
PCINT0
PRADC
SPMEN
ADC0D
ADTS0
ADPS0
SPI2X0
SPR00
TOIE2
TOIE1
TOIE0
PCIE0
WDP0
ACIS0
MUX0
ISC00
PORF
EERE
Bit 0
CS00
IVCE
INT0
SP8
SP0
SE
C
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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