78F1143
User’s Manual
78K0R/KE3
16-bit Single-Chip Microcontrollers
μPD78F1142, 78F1142A, 78F1142A(A) μPD78F1143, 78F1143A, 78F1143A(A) μPD78F1144, 78F1144A, 78F1144A(A) μPD78F1145, 78F1145A, 78F1145A(A) μPD78F1146, 78F1146A, 78F1146A(A)
Document No. U17854EJ9V0UD00 (9th edition) Date Published September 2009 NS
Printed in Japan
[MEMO] 2 User’s Manual U17854EJ9V0UD
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...
