ATMEGA6450A-AU Atmel, ATMEGA6450A-AU Datasheet - Page 302
ATMEGA6450A-AU
Manufacturer Part Number
ATMEGA6450A-AU
Description
IC MCU AVR 64K FLASH 100TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA6450A-AU
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
69
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
100-TFQFP
Processor Series
ATmega
Core
AVR
Data Bus Width
8 bit
Data Ram Size
4 KB
Interface Type
SPI, USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
69
Number Of Timers
3
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Manufacturer
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Price
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26.8.3
Table 26-16. Serial Programming Instruction Set
Notes:
302
Instruction/Operation
Programming Enable
Chip Erase (Program Memory/EEPROM)
Poll RDY/BSY
Load Instructions
Load Extended Address byte
Load Program Memory Page, High byte
Load Program Memory Page, Low byte
Load EEPROM Memory Page (page access)
Read Instructions
Read Program Memory, High byte
Read Program Memory, Low byte
Read EEPROM Memory
Read Lock bits
Read Signature Byte
Read Fuse bits
Read Fuse High bits
Read Extended Fuse Bits
Read Calibration Byte
Write Instructions
Write Program Memory Page
Write EEPROM Memory
Write EEPROM Memory Page (page access)
Write Lock bits
Write Fuse bits
Write Fuse High bits
Write Extended Fuse Bits
1. Not all instructions are applicable for all parts
2. a = address
3. Bits are programmed ‘0’, unprogrammed ‘1’.
4. To ensure future compatibility, unused Fuses and Lock bits should be unprogrammed (‘1’).
5. Refer to the corresponding section for Fuse and Lock bits, Calibration and Signature bytes and Page size.
6. Instructions accessing program memory use a word address. This address may be random within the page range.
7. See htt://www.atmel.com/avr for Application Notes regarding programming and programmers.
ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/645
Serial Programming Instruction set
(6)
Table 26-16
If the LSB in RDY/BSY data byte out is ‘1’, a programming operation is still pending. Wait until
this bit returns ‘0’ before the next instruction is carried out.
(1)
and
Figure 26-12 on page 303
Byte 1
$AC
$AC
$C1
$C0
$C2
$AC
$AC
$AC
$AC
$F0
$4D
$A0
$4C
$48
$40
$28
$20
$58
$30
$50
$58
$50
$38
0000 00aa
0000 00aa
0000 00aa
adr MSB
adr MSB
adr MSB
Byte 2
describes the Instruction set.
$E0
$A0
$A8
$A4
$53
$80
$00
$00
$00
$00
$00
$00
$00
$00
$08
$08
$00
Instruction Format
Extended adr
0000 00aa
aaaa aaaa
0000 00aa
aaaa aaaa
aaaa aa00
adr LSB
adr LSB
adr LSB
adr LSB
adr LSB
Byte 3
$00
$00
$00
$00
$00
$00
$00
$00
$00
$00
$00
$00
high data byte out
low data byte out
high data byte in
low data byte in
data byte out
data byte out
data byte out
data byte out
data byte out
data byte out
data byte out
data byte out
data byte in
data byte in
data byte in
data byte in
data byte in
data byte in
8285B–AVR–03/11
Byte4
$00
$00
$00
$00
$00
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