HD404342R datasheet(13/102 Pages) RENESAS

13 / 102 page

HD404344R Series/HD404394 Series

HD404394 Series

Pin Number

Item

Symbol

DP-28S/

FP-28DA FP-30D

I/O

Function

Power supply

Applies power voltage

GND

Connects to ground

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 oscillator, or

OSC

1 to an external oscillator circuit

OSC

Port

0–D 5

23–28

25–30

I/O

Input/output pins addressed individually by bits;

pins D

1 and D 2 can sink 15 mA max.

0–R0 3,

0–R1 3,

0–R2 3,

1–R3 3

1–8,

13–15

19–22

1–8,

14–16,

21–24

I/O

Four-bit input/output pins. Pins R1

0–R1 2 are

NMOS intermediate-voltage open drain pins.

Pins R1

3–R2 3 are NMOS standard-voltage open

drain pins which can sink 15 mA max.

Interrupt

INT

Input pin 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

A/D converter

ref

Power supply for the internal ladder resistor in

the A/D converter

1–AN 3

13–15

14–16

Analog input pins for the A/D converter

HD404342R Datasheet(PDF) 13 Page - Renesas Technology Corp

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