ATMEGA645V-8AU Atmel, ATMEGA645V-8AU Datasheet - Page 52
![IC AVR MCU FLASH 64K 64TQFP](/photos/12/13/121332/313-64-tqfp_sml.jpg)
ATMEGA645V-8AU
Manufacturer Part Number
ATMEGA645V-8AU
Description
IC AVR MCU FLASH 64K 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA325-16MU.pdf
(362 pages)
Specifications of ATMEGA645V-8AU
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
53
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-TQFP, 64-VQFP
Processor Series
ATMEGA64x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
4 KB
Interface Type
SPI, UART, USI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
54
Number Of Timers
3
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Controller Family/series
AVR MEGA
No. Of I/o's
54
Eeprom Memory Size
2KB
Ram Memory Size
4KB
Cpu Speed
8MHz
No. Of Timers
3
Rohs Compliant
Yes
Data Rom Size
2 KB
Height
1 mm
Length
14 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Width
14 mm
For Use With
ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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2570M–AVR–04/11
When the BOOTRST Fuse is unprogrammed, the Boot section size set to 4K bytes and the
IVSEL bit in the MCUCR Register is set before any interrupts are enabled, the most typical and
general program setup for the Reset and Interrupt Vector Addresses is:
When the BOOTRST Fuse is programmed and the Boot section size set to 4K bytes, the most
typical and general program setup for the Reset and Interrupt Vector Addresses is:
Address Labels Code
0x0000
0x0001
0x0002
0x0003
0x0004
0x0005
;
.org 0x3802/0x7802
0x3804/0x7804
0x3806/0x7806
...
0x1C2C
Address Labels Code
.org 0x0002
0x0002
0x0004
...
0x002C
;
.org 0x3800/0x7800
0x3800/0x7801RESET:ldir16,high(RAMEND); Main program start
0x3801/0x7801
0x3802/0x7802
0x3803/0x7803
0x3804/0x7804
0x3805/0x7805
RESET: ldi
out
ldi
out
sei
<instr> xxx
jmp
jmp
...
jmp
jmp
jmp
...
jmp
out
ldi
out
sei
<instr>
r16,high(RAMEND); Main program start
SPH,r16
r16,low(RAMEND)
SPL,r16
EXT_INT0
PCINT0
...
SPM_RDY
EXT_INT0
PCINT0
...
SPM_RDY
SPH,r16
r16,low(RAMEND)
SPL,r16
xxx
Comments
ATmega325/3250/645/6450
; Set Stack Pointer to top of RAM
Comments
; Set Stack Pointer to top of RAM
; Enable interrupts
; IRQ0 Handler
; PCINT0 Handler
;
; Store Program Memory Ready Handler
; IRQ0 Handler
; PCINT0 Handler
;
; Store Program Memory Ready Handler
; Enable interrupts
52
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