ATMEGA8-16AU Atmel, ATMEGA8-16AU Datasheet - Page 224
![IC AVR MCU 8K 16MHZ 5V 32TQFP](/photos/6/91/69154/313-32-tqfp_sml.jpg)
ATMEGA8-16AU
Manufacturer Part Number
ATMEGA8-16AU
Description
IC AVR MCU 8K 16MHZ 5V 32TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA8-16AU
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
23
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-TQFP, 32-VQFP
For Use With
ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIP770-1007 - 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 SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Programming the
EEPROM
224
ATmega8(L)
Figure 106. 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):
1. A: Load Command “0001 0001”
2. G: Load Address High byte (0x00 - 0xFF)
3. B: Load Address Low byte (0x00 - 0xFF)
4. C: Load Data (0x00 - 0xFF)
5. E: Latch data (give PAGEL a positive pulse)
K: Repeat 3 through 5 until the entire buffer is filled
L: Program EEPROM page
1. Set BS1 to “0”
2. Give WR a negative pulse. This starts programming of the EEPROM page. RDY/BSY
3. Wait until to RDY/BSY goes high before programming the next page (see
goes low
page 225
RESET +12V
RDY/BSY
PAGEL
1. “XX” is don’t care. The letters refer to the programming description above
XTAL1
DATA
XA1
XA0
BS1
BS2
WR
OE
for signal waveforms)
“Programming the Flash” on page 222
0x10
A
ADDR. LOW
B
DATA LOW
C
DATA HIGH
D
E
XX
ADDR. LOW
Table 90 on page
B
(1)
DATA LOW
C
F
DATA HIGH
for details on Command, Address and
D
E
XX
218. When programming the
ADDR. HIGH
G
H
XX
Figure 107 on
2486Z–AVR–02/11
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