UPD78F9418A
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User’s Manual
µPD789407A, 789417A Subseries
8-Bit Single-Chip Microcontrollers
µPD789405A µPD7894...
Description
www.DataSheet4U.com
User’s Manual
µPD789407A, 789417A Subseries
8-Bit Single-Chip Microcontrollers
µPD789405A µPD789406A µPD789407A
µPD789415A µPD789416A µPD789417A µPD78F9418A
Document No. U13952EJ3V0UD00 (3rd edition) Date Published April 2003 N CP(K)
1999, 2003 Printed in Japan
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2
User’s Manual U13952EJ3V0UD
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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 ge...
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