ATMEGA64A-MNR Atmel, ATMEGA64A-MNR Datasheet - Page 303

• Manufacturer Part Number: ATMEGA64A-MNR
• Description: IC MCU AVR 64K FLASH 8QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA64A-MNR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• 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): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: SPI, UART, I2C
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 53
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 40 C to + 85 C
• Processor To Be Evaluated: ATMEGA64A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

27.6.5
8160C–AVR–07/09
Programming the EEPROM
Figure 27-2. Addressing the Flash which is Organized in Pages
Note:
Figure 27-3. Programming the Flash Waveforms
Note:
The EEPROM is organized in pages, see
EEPROM, the program data is latched into a page buffer. This allows one page of data to be
programmed simultaneously. The programming algorithm for the EEPROM data memory is as
follows (refer to
Data loading):
RESET +12V
RDY/BSY
1. PCPAGE and PCWORD are listed in
1. “XX” is don’t care. The letters refer to the programming description above.
PAGEL
XTAL1
DATA
PROGRAM MEMORY
XA1
XA0
BS1
BS2
WR
OE
PROGRAM
COUNTER
PAGE
“Programming the Flash” on page 301
$10
A
PAGE ADDRESS
WITHIN THE FLASH
ADDR. LOW
PCMSB
B
DATA LOW
PCPAGE
C
DATA HIGH
D
XX
E
PAGEMSB
Table 27-10 on page
PCWORD
ADDR. LOW
Table 27-9 on page 300
B
WORD ADDRESS
WITHIN A PAGE
DATA LOW
(1)
C
F
INSTRUCTION WORD
DATA HIGH
for details on Command, Address and
D
PAGE
E
XX
(1)
ADDR. HIGH
300. When programming the
G
.
ATmega64A
XX
H
PCWORD[PAGEMSB:0]:
00
01
02
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