IC AVR MCU 4K 10MHZ 1.8V 32-QFN

ATMEGA48V-10MU

Manufacturer Part NumberATMEGA48V-10MU
DescriptionIC AVR MCU 4K 10MHZ 1.8V 32-QFN
ManufacturerAtmel
SeriesAVR® ATmega
ATMEGA48V-10MU datasheets
 

Specifications of ATMEGA48V-10MU

Core ProcessorAVRCore Size8-Bit
Speed10MHzConnectivityI²C, SPI, UART/USART
PeripheralsBrown-out Detect/Reset, POR, PWM, WDTNumber Of I /o23
Program Memory Size4KB (2K x 16)Program Memory TypeFLASH
Eeprom Size256 x 8Ram Size512 x 8
Voltage - Supply (vcc/vdd)1.8 V ~ 5.5 VData ConvertersA/D 8x10b
Oscillator TypeInternalOperating Temperature-40°C ~ 85°C
Package / Case32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFNPackage32MLF EP
Device CoreAVRFamily NameATmega
Maximum Speed10 MHzOperating Supply Voltage2.5|3.3|5 V
Data Bus Width8 BitNumber Of Programmable I/os23
Interface TypeSPI/TWI/USARTOn-chip Adc8-chx10-bit
Number Of Timers3Processor SeriesATMEGA48x
CoreAVR8Data Ram Size512 B
Maximum Clock Frequency10 MHzMaximum Operating Temperature+ 85 C
Mounting StyleSMD/SMT3rd Party Development ToolsEWAVR, EWAVR-BL
Minimum Operating Temperature- 40 CController Family/seriesAVR MEGA
No. Of I/o's23Eeprom Memory Size256Byte
Ram Memory Size512ByteCpu Speed10MHz
No. Of Timers3Rohs CompliantYes
For Use WithATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEMLead Free Status / RoHS StatusLead free / RoHS Compliant
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ATAVRTS2080B PDF datasheetATMEGA48-20AU PDF datasheet #2
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Page 274/378

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Figure 26-3. Addressing the Flash During SPM
Z - REGISTER
Note:
26.8
Self-Programming the Flash
The program memory is updated in a page by page fashion. Before programming a page with
the data stored in the temporary page buffer, the page must be erased. The temporary page buf-
fer is filled one word at a time using SPM and the buffer can be filled either before the Page
Erase command or between a Page Erase and a Page Write operation:
Alternative 1, fill the buffer before a Page Erase
• Fill temporary page buffer
• Perform a Page Erase
• Perform a Page Write
Alternative 2, fill the buffer after Page Erase
• Perform a Page Erase
• Fill temporary page buffer
• Perform a Page Write
If only a part of the page needs to be changed, the rest of the page must be stored (for example
in the temporary page buffer) before the erase, and then be rewritten. When using alternative 1,
the Boot Loader provides an effective Read-Modify-Write feature which allows the user software
to first read the page, do the necessary changes, and then write back the modified data. If alter-
native 2 is used, it is not possible to read the old data while loading since the page is already
erased. The temporary page buffer can be accessed in a random sequence. It is essential that
the page address used in both the Page Erase and Page Write operation is addressing the same
page. See
code example.
ATmega48/88/168
274
BIT
15
ZPCMSB
ZPAGEMSB
PCMSB
PAGEMSB
PROGRAM
PCPAGE
COUNTER
PAGE ADDRESS
WITHIN THE FLASH
PROGRAM MEMORY
PAGE
1. The different variables used in
Figure 26-3
“Simple Assembly Code Example for a Boot Loader” on page 278
(1)
1
0
0
PCWORD
WORD ADDRESS
WITHIN A PAGE
PAGE
PCWORD[PAGEMSB:0]:
00
INSTRUCTION WORD
01
02
PAGEEND
are listed in
Table 26-8 on page
280.
for an assembly
2545S–AVR–07/10

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