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參數(shù)資料
| 型號： | M308B8SGP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 32 MHz, MICROCONTROLLER, PQFP144 |
| 封裝： | 20 X 20 MM, 0.50 MM PITCH, PLASTIC, LQFP-144 |
| 文件頁數(shù)： | 7/70頁 |
| 文件大?。?/td> | 1150K |
| 代理商： | M308B8SGP |
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15
XMEGA D4 [DATASHEET]
8135P–AVR–01/2014
7.8
Data Memory and Bus Arbitration
Since the data memory is organized as four separate sets of memories, the bus masters (CPU, etc.) can access different
memory sections at the same time.
7.9
Memory Timing
Read and write access to the I/O memory takes one CPU clock cycle. A write to SRAM takes one cycle, and a read from
SRAM takes two cycles. EEPROM page load (write) takes one cycle, and three cycles are required for read. For burst
read, new data are available every second cycle. Refer to the instruction summary for more details on instructions and
instruction timing.
7.10 Device ID and Revision
Each device has a three-byte device ID. This ID identifies Atmel as the manufacturer of the device and the device type. A
separate register contains the revision number of the device.
7.11 I/O Memory Protection
Some features in the device are regarded as critical for safety in some applications. Due to this, it is possible to lock the
I/O register related to the clock system, the event system, and the advanced waveform extensions. As long as the lock is
enabled, all related I/O registers are locked and they can not be written from the application software. The lock registers
themselves are protected by the configuration change protection mechanism.
7.12 Flash and EEPROM Page Size
The flash program memory and EEPROM data memory are organized in pages. The pages are word accessible for the
flash and byte accessible for the EEPROM.
Table 7-2 on page 15 shows the Flash Program Memory organization and Program Counter (PC) size. Flash write and
erase operations are performed on one page at a time, while reading the Flash is done one byte at a time. For Flash
access the Z-pointer (Z[m:n]) is used for addressing. The most significant bits in the address (FPAGE) give the page
number and the least significant address bits (FWORD) give the word in the page.
Table 7-2.
Number of words and Pages in the Flash.
Table 7-3 on page 16 shows EEPROM memory organization for the Atmel AVR XMEGA D4 devices. EEEPROM write
and erase operations can be performed one page or one byte at a time, while reading the EEPROM is done one byte at
a time. For EEPROM access the NVM address register (ADDR[m:n]) is used for addressing. The most significant bits in
the address (E2PAGE) give the page number and the least significant address bits (E2BYTE) give the byte in the page.
Devices
PC size
Flash size
Page Size
FWORD
FPAGE
Application
Boot
bits
bytes
words
Size
No of pages
Size
No of pages
ATxmega16D4
14
16K + 4K
128
Z[7:1]
Z[13:8]
16K
64
4K
16
ATxmega32D4
15
32K + 4K
128
Z[7:1]
Z[14:8]
32K
128
4K
16
ATxmega64D4
16
64K + 4K
128
Z[7:1]
Z[15:8]
64K
256
4K
16
ATxmega128D4
17
128K + 8K
128
Z[9:1]
Z[16:8]
128K
512
8K
32
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M308B8SGP#U5 | 功能描述:MCU ROMLESS 32K RAM 144-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:M16C™ M32C/80/8B 產(chǎn)品培訓(xùn)模塊:CAN Basics Part-1 CAN Basics Part-2 Electromagnetic Noise Reduction Techniques Part 1 M16C Product Overview Part 1 M16C Product Overview Part 2 標準包裝:1 系列:M16C™ M32C/80/87 核心處理器:M32C/80 芯體尺寸:16/32-位 速度:32MHz 連通性:EBI/EMI，I²C，IEBus，IrDA，SIO，UART/USART 外圍設(shè)備:DMA，POR，PWM，WDT 輸入/輸出數(shù):121 程序存儲器容量:384KB（384K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:24K x 8 電壓 - 電源 (Vcc/Vdd):3 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 34x10b，D/A 2x8b 振蕩器型:內(nèi)部 工作溫度:-20°C ~ 85°C 封裝/外殼:144-LQFP 包裝:托盤 產(chǎn)品目錄頁面:749 (CN2011-ZH PDF) 配用:R0K330879S001BE-ND - KIT DEV RSK M32C/87 |
| M309 | 功能描述:折皺器 CRIMP TOOL HIGH POWER RoHS:否 制造商:Hirose Connector 類型: 描述/功能:Cable and Shield Crimper |
| M-309 | 制造商:Daniels Manufacturing Corporation (DMC) 功能描述:CRIMPER |
| M30-9000099 | 功能描述:集管和線殼 PRE-CRIMPED CONTACT 26 AWG 150MM SNG END RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點類型:Pin (Male) 節(jié)距:1 mm 位置/觸點數(shù)量:16 排數(shù):1 安裝風格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點材料:Brass 觸點電鍍:Gold 制造商:Hirose Connector |
| M30-9010099 | 功能描述:集管和線殼 PRE-CRIMPED CONTACT 30 AWG 150MM SNG END RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點類型:Pin (Male) 節(jié)距:1 mm 位置/觸點數(shù)量:16 排數(shù):1 安裝風格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點材料:Brass 觸點電鍍:Gold 制造商:Hirose Connector |
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