Chapter 2 Circuit Diagram; Circuit Diagram; Peripheral Hardware - NEC 78K0S/K 1+ Series Application Note

This chapter describes a circuit diagram and the peripheral hardware to be used in this sample program.
2.1

Circuit Diagram

A circuit diagram is shown below.
SW
Notes 1. Use this in a voltage range of 4.5 V ≤ V
2. INTP1/P43: 78K0S/KA1+ and 78K0S/KB1+ microcontrollers
INTP1/P32: 78K0S/KY1+ and 78K0S/KU1+ microcontrollers
Cautions 1. Connect the AV
microcontrollers).
2. Connect the AV
3. Leave all unused pins open (unconnected), except for the pins shown in the circuit diagram
and the AV
2.2

Peripheral Hardware

The peripheral hardware to be used is shown below.
(1) Switch (SW)
A switch is used as an input to control the lighting of an LED.
(2) LED
An LED is used as an output corresponding to the interval timer function of 16-bit timer/event counter 00 and
switch inputs.

CHAPTER 2 CIRCUIT DIAGRAM

V
DD
V Note 1
DD
78K0S/Kx1+
V
SS
microcontroller
INTP1 Note 2
DD
pin directly to V
REF
pin directly to GND (only for the 78K0S/KB1+ microcontroller).
SS
and AV pins.
REF SS
Application Note U18887EJ1V0AN
V
DD
RESET
P20
≤ 5.5 V.
(only for the 78K0S/KA1+ and 78K0S/KB1+
DD
V
DD
LED
5