ATMEGA1284P-AU Atmel, ATMEGA1284P-AU Datasheet - Page 289

MCU AVR 128K ISP FLASH 44-TQFP

ATMEGA1284P-AU

Manufacturer Part Number
ATMEGA1284P-AU
Description
MCU AVR 128K ISP FLASH 44-TQFP
Manufacturer
Atmel
Series
AVR® ATmegar

Specifications of ATMEGA1284P-AU

Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, 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
16K 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
44-TQFP, 44-VQFP
Processor Series
ATMEGA128x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
16 KB
Interface Type
2-Wire, SPI, USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
32
Number Of Timers
3
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRRAVEN, ATAVRRZUSBSTICK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Package
44TQFP
Device Core
AVR
Family Name
ATmega
Maximum Speed
20 MHz
Operating Supply Voltage
2.5|3.3|5 V
Data Rom Size
4 KB
Height
1.05 mm
Length
10.1 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.8 V
Width
10.1 mm
Controller Family/series
AVR MEGA
No. Of I/o's
32
Eeprom Memory Size
4KB
Ram Memory Size
16KB
Cpu Speed
20MHz
Rohs Compliant
Yes
For Use With
ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFPATSTK600 - DEV KIT FOR AVR/AVR32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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25.8.14
In
Table 25-7.
Note:
Table 25-8.
Note:
Table 25-9.
Note:
See
Programming.
8272A–AVR–01/10
BOOTSZ1
Section
Read-While-Write section (RWW)
No Read-While-Write section (NRWW)
Variable
PCMSB
PAGEMSB
ZPCMSB
ZPAGEMSB
PCPAGE
PCWORD
Table 25-7
”Addressing the Flash During Self-Programming” on page 282
1
1
0
0
1. The different BOOTSZ Fuse configurations are shown in
1. For details about these two section, see
1. Z0: should be zero for all SPM commands, byte select for the (E)LPM instruction.
ATmega164A/ATmega164PA Boot Loader Parameters
Write Section” on page
through
BOOTSZ0
Boot Size Configuration
Read-While-Write Limit
Explanation of different variables used in
1
0
1
0
PC[12:6]
PC[5:0]
12
Table
5
Boot Size
1024 words
164A/164PA/324A/324PA/644A/644PA/1284/1284P
128 words
256 words
512 words
25-9, the parameters used in the description of the Self-Programming are given.
Corresponding
278.
Z-value
Z14:Z7
Z6:Z1
Z13
Z6
(1)
(1)
Pages
16
2
4
8
”NRWW – No Read-While-Write Section” on page 278
Description
Most significant bit in the Program Counter. (The Program Counter is 13 bits
PC[12:0])
Most significant bit which is used to address the words within one page (128
words in a page requires seven bits PC [5:0]).
Bit in Z-pointer that is mapped to PCMSB. Because Z0 is not used, the
ZPCMSB equals PCMSB + 1.
Bit in Z-pointer that is mapped to PCMSB. Because Z0 is not used, the
ZPAGEMSB equals PAGEMSB + 1.
Program Counter page address: Page select, for Page Erase and Page Write
Program Counter word address: Word select, for filling temporary buffer (must
be zero during Page Write operation)
Application
Flash Section
0x0000 - 0x1F7F
0x0000 - 0x1EFF
0x0000 - 0x1DFF
0x0000 - 0x1BFF
Figure 25-3 on page 282
(1)
Figure 25-2 on page
Pages
112
16
0x1F00 - 0x1FFF
Boot Loader
Flash Section
0x1F80 - 0x1FFF
0x1E00 - 0x1FFF
0x1C00 - 0x1FFF
for details about the use of Z-pointer during Self-
280.
and the mapping to the Z-pointer
End
Application
Section
0x1F7F
0x1EFF
0x1DFF
0x1BFF
Address
0x0000 - 0x1BFF
0x1C00 - 0x1FFF
and
”RWW – Read-While-
Boot Reset
Address
(Start Boot
Loader Section)
0x1F80
0x1F00
0x1E00
0x1C00
289

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