ATMEGA128A-MU Atmel, ATMEGA128A-MU Datasheet - Page 296
![MCU 8BIT 128K ISP FLASH 64-QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
ATMEGA128A-MU
Manufacturer Part Number
ATMEGA128A-MU
Description
MCU 8BIT 128K ISP FLASH 64-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA128A-MU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
53
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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-MLF®, 64-QFN
Processor Series
ATMEGA128x
Core
AVR8
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Controller Family/series
AVR MEGA
No. Of I/o's
53
Eeprom Memory Size
4KB
Ram Memory Size
4KB
Cpu Speed
16MHz
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA128A-MU
Manufacturer:
Atmel
Quantity:
442
Company:
Part Number:
ATMEGA128A-MU
Manufacturer:
ATMEL
Quantity:
423
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26.6
26.6.1
8151H–AVR–02/11
Parallel Programming
Enter Programming Mode
Table 26-9.
Table 26-10. Command Byte Bit Coding
Table 26-11. No. of Words in a Page and no. of Pages in the Flash
Table 26-12. No. of Words in a Page and no. of Pages in the EEPROM
The following algorithm puts the device in parallel programming mode:
64K words (128 Kbytes)
1. Apply 4.5V - 5.5V between V
2. Set RESET to “0” and toggle XTAL1 at least SIX times.
3. Set the Prog_enable pins listed in
4. Apply 11.5V - 12.5V to RESET. Any activity on Prog_enable pins within 100 ns after
XA1
0
0
1
1
EEPROM Size
100 ns.
+12V has been applied to RESET, will cause the device to fail entering programming
mode.
4 Kbytes
Command Byte
Flash Size
XA0
1000 0000
0100 0000
0010 0000
0001 0000
0001 0001
0000 1000
0000 0100
0000 0010
0000 0011
0
1
0
1
XA1 and XA0 Coding
Action when XTAL1 is Pulsed
Load Flash or EEPROM Address (High or low address byte determined by BS1)
Load Data (High or Low data byte for Flash determined by BS1)
Load Command
No Action, Idle
Page Size
8 bytes
Page Size
128 words
Command Executed
Chip Erase
Write Fuse bits
Write Lock bits
Write Flash
Write EEPROM
Read Signature Bytes and Calibration byte
Read Fuse and Lock bits
Read Flash
Read EEPROM
CC
PCWORD
EEA[2:0]
and GND, and wait at least 100 µs.
Table 26-8 on page 295
PCWORD
PC[6:0]
No. of Pages
512
No. of Pages
512
to “0000” and wait at least
EEA[11:3]
ATmega128A
PCPAGE
PCPAGE
PC[15:7]
EEAMSB
PCMSB
8
15
296
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