UPD70F3302

www.DataSheet4U.com Preliminary User’s Manual V850ES/KE1+ 32-Bit Single-Chip Microcontrollers Hardware DataShee µPD703302 µPD703302Y µPD70F3302 µPD70F3302Y DataSheet4U.com Document No. U16896EJ1V0UD00 (1st edition) Date Published June 2004 N CP(K) 2004 Printed in Japan DataSheet4U.com DataSheet 4 U .com www.DataSheet4U.com [MEMO] et4U.com DataShee DataSheet4U.com DataSheet4U.com 2 DataSheet 4 U .com Preliminary User’s Manual U16896EJ1V0UD www.DataSheet4U.com NOTES FOR CMOS DEVICES 1 VOLTAGE APPLICATION WAVEFORM AT INPUT PIN Waveform distortion due to input noise or a reflected wave may cause malfunction. If the input of the CMOS device stays in the area between VIL (MAX) and VIH (MIN) due to noise, etc., the device may malfunction. Take care to prevent chattering noise from entering the device when the input level is fixed, and also in the transition period when the input level passes through the area between VIL (MAX) and VIH (MIN). 2 HANDLING OF UNUSED INPUT PINS Unconnected CMOS device inputs can be cause of malfunction. If an input pin is unconnected, it is possible that an internal input level may be generated due to noise, etc., causing malfunction. CMOS devices behave differently than Bipolar or NMOS devices. Input levels of CMOS devices must be fixed high or low by using pull-up or pull-down circuitry. Each unused pin should be connected to VDD or GND via a resistor if there is a possibility that it will be an output pin. All handling related to unuse...