參數(shù)資料
型號(hào)： MB91F668PMC
廠(chǎng)商： FUJITSU LTD
元件分類(lèi)： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 33 MHz, RISC MICROCONTROLLER, PQFP48
封裝： 7 X 7 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-48
文件頁(yè)數(shù)： 19/104頁(yè)
文件大?。?/td> 3106K
代理商： MB91F668PMC
MB91665 Series
DS07-16916-2E
21
■ HANDLING PRECAUTIONS
Any semiconductor devices have inherently a certain rate of failure. The possibility of failure is greatly affected
by the conditions in which they are used (circuit conditions, environmental conditions, etc.). This page describes
precautions that must be observed to minimize the chance of failure and to obtain higher reliability from your
FUJITSU SEMICONDUCTOR semiconductor devices.
1.
Precautions for Product Design
This section describes precautions when designing electronic equipment using semiconductor devices.
Absolute Maximum Ratings
Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature,
etc.) in excess of certain established limits, called absolute maximum ratings. Do not exceed these ratings.
Recommended Operating Conditions
Recommended operating conditions are normal operating ranges for the semiconductor device. All the device's
electrical characteristics are warranted when operated within these ranges.
Always use semiconductor devices within the recommended operating conditions. Operation outside these
ranges may adversely affect reliability and could result in device failure.
No warranty is made with respect to uses, operating conditions, or combinations not represented on the data
sheet. Users considering application outside the listed conditions are advised to contact their sales representative
beforehand.
Processing and Protection of Pins
These precautions must be followed when handling the pins which connect semiconductor devices to power
supply and input/output functions.
(1) Preventing Over-Voltage and Over-Current Conditions
Exposure to voltage or current levels in excess of maximum ratings at any pin is likely to cause deterioration
within the device, and in extreme cases leads to permanent damage of the device. Try to prevent such
overvoltage or over-current conditions at the design stage.
(2) Protection of Output Pins
Shorting of output pins to supply pins or other output pins, or connection to large capacitance can cause
large current flows. Such conditions if present for extended periods of time can damage the device.
Therefore, avoid this type of connection.
(3) Handling of Unused Input Pins
Unconnected input pins with very high impedance levels can adversely affect stability of operation. Such
pins should be connected through an appropriate resistance to a power supply pin or ground pin.
Code: DS00-00004-1Ea
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