データシートサーチシステム
Selected language   Japanese  ▼
品番検索
         詳細検索


ATMEGA64_0610 データシート(Datasheet) 5 Page - ATMEL Corporation

部品番号. ATMEGA64_0610
部品情報  8-bit Microcontroller with 64K Bytes In-System Programmable Flash
ダウンロード  393 Pages
Scroll/Zoom Zoom In 100% Zoom Out
メーカー  ATMEL [ATMEL Corporation]
ホームページ  http://www.atmel.com
Logo 

 
 5 page
background image
5
ATmega64(L)
2490L–AVR–10/06
ATmega103 Compatibility
Mode
By programming the M103C Fuse, the ATmega64 will be compatible with the
ATmega103 regards to RAM, I/O pins and Interrupt Vectors as described above. How-
ever, some new features in ATmega64 are not available in this compatibility mode,
these features are listed below:
One USART instead of two, asynchronous mode only. Only the eight least
significant bits of the Baud Rate Register is available.
One 16 bits Timer/Counter with two compare registers instead of two 16 bits
Timer/Counters with three compare registers.
Two-wire serial interface is not supported.
Port G serves alternate functions only (not a general I/O port).
Port F serves as digital input only in addition to analog input to the ADC.
Boot Loader capabilities is not supported.
It is not possible to adjust the frequency of the internal calibrated RC Oscillator.
The External Memory Interface can not release any Address pins for general I/O,
neither configure different wait states to different External Memory Address
sections.
Only EXTRF and PORF exist in the MCUCSR Register.
No timed sequence is required for Watchdog Timeout change.
Only low-level external interrupts can be used on four of the eight External Interrupt
sources.
Port C is output only.
USART has no FIFO buffer, so Data OverRun comes earlier.
The user must have set unused I/O bits to 0 in ATmega103 programs.
Pin Descriptions
VCC
Digital supply voltage.
GND
Ground.
Port A (PA7..PA0)
Port A is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each
bit). The Port A output buffers have symmetrical drive characteristics with both high sink
and source capability. As inputs, Port A pins that are externally pulled low will source
current if the pull-up resistors are activated. The Port A pins are tri-stated when a reset
condition becomes active, even if the clock is not running.
Port A also serves the functions of various special features of the ATmega64 as listed
on page 73.
Port B (PB7..PB0)
Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each
bit). The Port B output buffers have symmetrical drive characteristics with both high sink
and source capability. As inputs, Port B pins that are externally pulled low will source
current if the pull-up resistors are activated. The Port B pins are tri-stated when a reset
condition becomes active, even if the clock is not running.
Port B also serves the functions of various special features of the ATmega64 as listed
on page 74.




Html ページ

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79  80  81  82  83  84  85  86  87  88  89  90  91  92  93  94  95  96  97  98  99  100   ...More


Datasheet Download



関連電子部品番号

部品番号コンポーネントの説明Html Viewメーカー
ATMEGA648-bit Microcontroller with 64K Bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
ATMEGA64_068-bit Microcontroller with 64K Bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
ATMEGA644_078-bit Microcontroller with 64K Bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
ATMEGA128_068-bit Microcontroller with 128K Bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
ATMEGA164P_078-bit Microcontroller with 16/32/64K Bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
ATMEGA103_078-bit Microcontroller with 128K Bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
ATMEGA169P_068-bit Microcontroller with 16K Bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
ATMEGA8515_068-bit Microcontroller with 8K Bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
ATMEGA165P_068-bit Microcontroller with 16K Bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation
ATMEGA32_068-bit AVR Microcontroller with 32K Bytes In-System Programmable Flash 1 2 3 4 5 MoreATMEL Corporation

リンク URL

ALLDATASHEETはお客様のビジネスに役立ちますか?  [ DONATE ]  

Alldatasheetは   |   広告   |   お問い合わせ   |   プライバシーポリシー   |   ブックマーク   |   リンク交換   |   メーカーリスト
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl