ATMEGA103-6AI Atmel, ATMEGA103-6AI Datasheet - Page 108

IC MCU 128K 6MHZ A/D IT 64TQFP

ATMEGA103-6AI

Manufacturer Part Number
ATMEGA103-6AI
Description
IC MCU 128K 6MHZ A/D IT 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets

Specifications of ATMEGA103-6AI

Core Processor
AVR
Core Size
8-Bit
Speed
6MHz
Connectivity
SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
32
Program Memory Size
128KB (64K x 16)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
For Use With
ATSTK501 - ADAPTER KIT FOR 64PIN AVR MCU
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
108
ATmega103(L)
E: Load Data High Byte.
1. Set BS1 to “1”. This selects high data.
2. Set XA1, XA0 to “01”. This enables data loading.
3. Set DATA = Data High Byte ($00 - $FF).
4. Give XTAL1 a positive pulse. This loads the data High Byte.
F: Latch Data High Byte.
1. Give PAGEL a positive pulse. This latches the data High Byte.
G: Repeat B through F 128 times to fill the page buffer.
H: Load Address High Byte.
1. Set XA1, XA0 to “00”. This enables address loading.
2. Set BS1 to “1”. This selects high address.
3. Set DATA = Address High Byte ($00 - $FF).
4. Give XTAL1 a positive pulse. This loads the address High Byte.
I: Program Page.
1. Give WR a negative pulse. This starts programming of the entire page of data.
2. Wait until RDY/BSY goes high.
(See Figure 74 for signal waveforms.)
J: End Page Programming.
1. Set XA1, XA0 to “10”. This enables command loading.
2. Set DATA = “0000 0000”. This is the command for No Operation.
3. Give XTAL1 a positive pulse. This loads the command and the internal write sig-
K: Repeat A through J 512 times or until all data has been programmed.
Figure 73. Programming the Flash Waveforms
RDY/BSY goes low.
nals are reset.
RDY/BSY
RESET
PAGEL
XTAL1
DATA
XA1
XA2
BS1
BS2
WR
OE
+12V
$10
ADDR. LOW
ADDR. HIGH
DAT
A LOW
0945I–AVR–02/07

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