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參數(shù)資料
| 型號： | TMP91FY22F |
| 廠商： | Toshiba Corporation |
| 元件分類： | 微控制器 |
| 英文描述： | Quality And Reliability Assurance / Handling Precautions |
| 中文描述： | 質(zhì)量與可靠性保證/操作注意事項 |
| 文件頁數(shù)： | 39/48頁 |
| 文件大?。?/td> | 390K |
| 代理商： | TMP91FY22F |
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Quality and Reliability Assurance / Handling Precautions
030901
QUA-39
2002-02-20
4.3.12 Electromagnetic Interference
Widespread use of electrical and electronic equipment in recent years has
brought with it radio and TV reception problems due to electromagnetic
interference. To use the radio spectrum effectively and to maintain radio
communications quality, each country has formulated regulations limiting the
amount of electromagnetic interference which can be generated by individual
products.
Electromagnetic interference includes conduction noise propagated through
power supply and telephone lines, and noise from direct electromagnetic
waves radiated by equipment. Different measurement methods and corrective
measures are used to assess and counteract each specific type of noise.
Difficulties in controlling electromagnetic interference derive from the fact
that there is no method available which allows designers to calculate, at the
design stage, the strength of the electromagnetic waves which will emanate
from each component in a piece of equipment. For this reason, it is only after
the prototype equipment has been completed that the designer can take
measurements using a dedicated instrument to determine the strength of
electromagnetic interference waves.
Yet it is possible during system design to incorporate some measures for the
prevention of electromagnetic interference, which can facilitate taking
corrective measures once the design has been completed. These include
installing shields and noise filters, and increasing the thickness of the power
supply wiring patterns on the printed circuit board. One effective method, for
example, is to devise several shielding options during design, and then select
the most suitable shielding method based on the results of measurements
taken after the prototype has been completed.
4.3.13 Peripheral Circuits
In most cases semiconductor devices are used with peripheral circuits and
components. The input and output signal voltages and currents of these
circuits must be chosen to match the semiconductor device’s specifications.
The following factors must be taken into account.
(1)
Inappropriate voltages or currents applied to a device’s input pins may
cause it to operate erratically. Some devices contain pull-up or pull-down
resistors. When designing your system, remember to take the effect of this
on the voltage and current levels into account.
The output pins on a device have a predetermined external circuit drive
capability. If this drive capability is greater than that required, either
incorporate a compensating circuit into your design or carefully select
suitable components for use in external circuits.
(2)
4.3.14 Safety Standards
Each country has safety standards which must be observed. These safety
standards include requirements for quality assurance systems and design of
device insulation. Such requirements must be fully taken into account to
ensure that your design conforms to the applicable safety standards.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TMP91FY22FG | 功能描述:IC MCU FLASH 16BIT 256K 100QFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:TLCS-900/L1 標(biāo)準(zhǔn)包裝:330 系列:- 核心處理器:- 芯體尺寸:8/16-位 速度:40MHz 連通性:UART/USART 外圍設(shè)備:DMA，PWM，WDT 輸入/輸出數(shù):32 程序存儲器容量:- 程序存儲器類型:外部程序存儲器 EEPROM 大小:- RAM 容量:- 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:100-BQFP 包裝:管件 |
| TMP91FY28 | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Original CMOS 16-Bit Microcontroller |
| TMP91FY42FG | 制造商:Toshiba America Electronic Components 功能描述:IC 16BIT MCU 256K FLASH 120K RAM |
| TMP91FY42FG(C,JZ) | 制造商:Toshiba America Electronic Components 功能描述:MCU 16BIT 256KB FLASH 100-LQFP |
| TMP91FY42FG(JZ) | 功能描述:16位微控制器 - MCU TLCS900/L1 256K Flash RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
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