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參數(shù)資料
| 型號： | UPD78F9026A |
| 廠商： | NEC Corp. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-Bit Single-Chip Microcontrollers |
| 中文描述： | 8位單芯片微控制器 |
| 文件頁數(shù)： | 4/213頁 |
| 文件大?。?/td> | 840K |
| 代理商： | UPD78F9026A |
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User's Manual U11919EJ3V0UM00
4
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 V
DD
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.
EEPROM is a trademark of NEC Corporation.
MS-DOS, Windows, and Windows NT are either registered trademarks or trademarks of Microsoft
Corporation in the United States and/or other countries.
IBM DOS, PC/AT, and PC DOS are trademarks of International Business Machines Corporation.
HP9000 series 700 and HP-UX are trademarks of Hewlett-Packard Company.
SPARCstation is a trademark of SPARC International, Inc.
Solaris and SunOS are trademarks of Sun Microsystems, Inc.
OSF/Motif is a trademark of Open Software Foundation, Inc.
NEWS and NEWS-OS are trademarks of Sony Corporation.
TRON is an abbreviation of The Realtime Operating system Nucleus.
ITRON is an abbreviation of Industrial TRON.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| uPD78F9026AGB-8ES-A | 制造商:Renesas Electronics 功能描述:78K0S 5MHz Cut Tape 制造商:Renesas Electronics Corporation 功能描述:IC,MPU,8bit,78k/0S Series,Flash |
| UPD78F9046GB-8ES-A | 制造商:Renesas Electronics 功能描述:MCU 8-Bit 78K0S CISC 16KB Flash 2.5V/3.3V/5V 44-Pin LQFP Cut Tape 制造商:Renesas 功能描述:MCU 8-bit 78K CISC 16KB Flash 2.5V/3.3V/5V 44-Pin LQFP |
| UPD78F9076MC-5A4 | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD78F9076MC-5A4-A | 制造商:Renesas Electronics Corporation 功能描述:IC,MPU,8bit,78k/0S Series,Flash |
| UPD78F9116A5A4 | 制造商:NEC Electronics Corporation 功能描述: |
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