HS4318ESS01H datasheet(6/68 Pages) RENESAS

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HD404318 Series

PinDescription

Pin Number

Item

Symbol

DP-42S FP-44A I/O

Function

Power supply V

Applies power voltage

GND

Connected to ground

disp (shared

with RA

Used as a high-voltage output power supply pin when

selected by the mask option

Test

TEST

Cannot be used in user applications. Connect this pin

to GND.

Reset

RESET

Resets the MCU

Oscillator

OSC

Input/output pin for the internal oscillator. Connect these

pins to the ceramic or crystal oscillator, or OSC

1 to an

external oscillator circuit.

OSC

Port

0–D 8

22–30

17–21,

23–26

I/O

Input/output pins addressed individually by bits; D

0–D 8

are all high-voltage I/O pins. Each pin can be

individually configured as selected by the mask option.

One-bit high-voltage input port pin

0–R0 3,

0–R4 3

2–5,

12–19

40–43,

7–14

I/O

Four-bit input/output pins consisting of standard voltage

pins

0–R2 3,

0–R8 3

31–42

27–38

I/O

Four-bit input/output pins consisting of high voltage pins

Interrupt

INT

0, INT1

22, 23

17, 18

Input pins for external interrupts

Stop clear

STOPC

Input pin for transition from stop mode to active mode

Serial

interface

SCK

I/O

Serial interface clock input/output pin

Serial interface receive data input pin

Serial interface transmit data output pin

Timer

TOC

Timer output pin

EVNB

Event count input pin

Alarm

BUZZ

Square waveform output pin

A/D

converter

Power supply for the A/D converter. Connect this pin as

close as possible to the V

CC pin and at the same voltage

as V

CC.

If the power supply voltage to be used for the

A/D converter is not equal to V

CC, connect a 0.1-µF

bypass capacitor between the AV

CC and AV SS pins.

(However, this is not necessary when the AV

CC pin is

directly connected to the V

CC pin.)

Ground for the A/D converter. Connect this pin as close

as possible to GND at the same voltage as GND.

0–AN 7

12–19

7–14

Analog input pins for the A/D converter

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