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| 型號(hào)： | ATMEGA103-6AI |
| 廠商： | Atmel |
| 文件頁(yè)數(shù)： | 17/141頁(yè) |
| 文件大小： | 0K |
| 描述： | IC MCU 128K 6MHZ A/D IT 64TQFP |
| 產(chǎn)品培訓(xùn)模塊： | megaAVR Introduction |
| 標(biāo)準(zhǔn)包裝： | 90 |
| 系列： | AVR® ATmega |
| 核心處理器： | AVR |
| 芯體尺寸： | 8-位 |
| 速度： | 6MHz |
| 連通性： | SPI，UART/USART |
| 外圍設(shè)備： | POR，PWM，WDT |
| 輸入/輸出數(shù)： | 32 |
| 程序存儲(chǔ)器容量： | 128KB（64K x 16） |
| 程序存儲(chǔ)器類型： | 閃存 |
| EEPROM 大小： | 4K x 8 |
| RAM 容量： | 4K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 4 V ~ 5.5 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 8x10b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 64-TQFP |
| 包裝： | 托盤 |
| 配用： | ATSTK501-ND - ADAPTER KIT FOR 64PIN AVR MCU |
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113
ATmega103(L)
0945I–AVR–02/07
Serial Downloading
Both the Flash and EEPROM memory arrays can be programmed using the serial inter-
face while RESET is pulled to GND, or when PEN is low during Power-on Reset. The
serial interface consists of pins SCK, RXD/PDI (input) and TXD/PDO (output). After
RESET is set low, the Programming Enable instruction needs to be executed first before
program/erase instructions can be executed.
For the EEPROM, an auto-erase cycle is provided within the self-timed Write instruction
and there is no need to first execute the Chip Erase instruction. The Chip Erase instruc-
tion turns the content of every memory location in both the Program and EEPROM
arrays into $FF.
The Program and EEPROM memory arrays have separate address spaces: $0000 to
$FFFF for Program memory and $0000 to $0FFF for EEPROM memory.
Either an external clock is supplied at pin XTAL1 or a crystal needs to be connected
across pins XTAL1 and XTAL2. The minimum low and high periods for the serial clock
(SCK) input are defined as follows:
Low: > 2 XTAL1 clock cycles
High: > 2 XTAL1 clock cycles
Figure 77. Serial Programming
Note:
Instruction in and data out is not using the SPI pins as on other AVR devices. SCK uses
the SPI pin as usual.
Serial Programming
Algorithm
When writing serial data to the ATmega103(L), data is sampled by the ATmega
103/103L on the rising edge of SCK. When reading data from the ATmega103(L), data
is clocked on the falling edge of SCK. See Figure 78 for an explanation. To program and
verify the ATmega103(L) in the Serial Programming mode, the following sequence is
recommended (See 4-byte instruction formats in Table 44.):
1.
Power-up sequence: Apply power between V
CC and GND while RESET and SCK
are set to “0”. The RESET signal must be kept low during the complete serial
programming session. If a crystal is not connected across pins XTAL1 and
XTAL2, apply a clock signal to the XTAL1 pin. In some systems, the programmer
cannot guarantee that SCK is held low during Power-up. In this case, RESET
must be given a positive pulse of at least two XTAL1 cycles duration after SCK
has been set to “0”.
ATmega103(L)
VCC
V
CC
PE0 (PD1/RXD)
PE1 (PD0/TXD)
PB1 (SCK)
RESET
GND
XTAL1
INSTR. IN
DATA OUT
CLOCK IN
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| ATMEGA103L | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 128K Bytes In-System Programmable Flash |
| ATMEGA103L-4AC | 功能描述:8位微控制器 -MCU TQFP-64 128K FLASH 3 RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
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| ATMEGA128(L) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ATmega128(L) Preliminary Summary [Updated 9/03. 23 Pages] |
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