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UPD703208GK-XXX-9EU PDF预览

UPD703208GK-XXX-9EU

更新时间: 2024-01-15 22:21:05
品牌 Logo 应用领域
日电电子 - NEC 微控制器
页数 文件大小 规格书
757页 4297K
描述
32-Bit Single-Chip Microcontrollers

UPD703208GK-XXX-9EU 数据手册

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NOTES FOR CMOS DEVICES  
1
PRECAUTION AGAINST ESD FOR SEMICONDUCTORS  
Note:  
Strong electric field, when exposed to a MOS device, can cause destruction of the gate oxide and  
ultimately degrade the device operation. Steps must be taken to stop generation of static electricity  
as much as possible, and quickly dissipate it once, when it has occurred. Environmental control  
must be adequate. When it is dry, humidifier should be used. It is recommended to avoid using  
insulators that easily build static electricity. Semiconductor devices must be stored and transported  
in an anti-static container, static shielding bag or conductive material. All test and measurement  
tools including work bench and floor should be grounded. The operator should be grounded using  
wrist strap. Semiconductor devices must not be touched with bare hands. Similar precautions need  
to be taken for PW boards with semiconductor devices on it.  
2
HANDLING OF UNUSED INPUT PINS FOR CMOS  
Note:  
No connection for CMOS device inputs can be cause of malfunction. If no connection is provided  
to the input pins, it is possible that an internal input level may be generated due to noise, etc., hence  
causing malfunction. CMOS devices behave differently than Bipolar or NMOS devices. Input levels  
of CMOS devices must be fixed high or low by using a pull-up or pull-down circuitry. Each unused  
pin should be connected to VDD or GND with a resistor, if it is considered to have a possibility of  
being an output pin. All handling related to the unused pins must be judged device by device and  
related specifications governing the devices.  
3
STATUS BEFORE INITIALIZATION OF MOS DEVICES  
Note:  
Power-on does not necessarily define initial status of MOS device. Production process of MOS  
does not define the initial operation status of the device. Immediately after the power source is  
turned ON, the devices with reset function have not yet been initialized. Hence, power-on does  
not guarantee out-pin levels, I/O settings or contents of registers. Device is not initialized until the  
reset signal is received. Reset operation must be executed immediately after power-on for devices  
having reset function.  
Purchase of NEC Electronics I2C components conveys a license under the Philips I2C Patent Rights to  
use these components in an I2C system, provided that the system conforms to the I2C Standard  
Specification as defined by Philips.  
V850 Series, V850ES/KF1, V850ES/KG1, and V850ES/KJ1 are trademarks of NEC Electronics  
Corporation.  
3
User’s Manual U15862EJ3V0UD  

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