ATMEGA644PV-10MQ Atmel, ATMEGA644PV-10MQ Datasheet - Page 20
![MCU AVR 64K FLASH 10MHZ 44-QFN](/photos/12/13/121316/313-44-qfn_sml.jpg)
ATMEGA644PV-10MQ
Manufacturer Part Number
ATMEGA644PV-10MQ
Description
MCU AVR 64K FLASH 10MHZ 44-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA644PV-10MQ
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
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
44-VQFN Exposed Pad
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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5.3.1
8011O–AVR–07/10
Data Memory Access Times
The 32 general purpose working registers, 64 I/O registers, 160 Extended I/O Registers and the
1024/2048/4096 bytes of internal data SRAM in the ATmega164P/324P/644P are all accessible
through all these addressing modes. The Register File is described in
ter File” on page
Figure 5-2.
This section describes the general access timing concepts for internal memory access. The
internal data SRAM access is performed in two clk
Figure 5-3.
Address
clk
Data Memory Map for ATmega164P/324P/644P.
On-chip Data SRAM Access Cycles
Data
Data
WR
12.
CPU
RD
(1024/2048/4096 x 8)
160 Ext I/O Reg.
64 I/O Registers
Data Memory
Compute Address
Internal SRAM
32 Registers
T1
Memory Access Instruction
Address valid
ATmega164P/324P/644P
0x0000 - 0x001F
0x04FF/0x08FF/0x10FF
0x0020 - 0x005F
0x0060 - 0x00FF
0x0100
CPU
T2
cycles as described in
Next Instruction
T3
”General Purpose Regis-
Figure
5-3.
20
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