HD4046212RFS datasheet(9/157 Pages) RENESAS

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HD404629R Series

Pin Description

Pin Number

Item

Symbol

FP-100B

TFP-100B

FP-100A

I/O

Function

Power

Applies power voltage

supply

GND

Connected to ground

Test

TEST

Used for factory testing only: Connect this pin

to V

Reset

RESET

Resets the MCU

Oscillato

OSC

Input/output pins for the internal oscillator

circuit:

OSC

Connect them to a ceramic oscillator ,crystal

oscillator or connect OSC

1 to an external

oscillator

curcuit

Used for a 32.768-kHz crystal for clock

purposes.

If not to be used, fix the X1 pin to V

CC and

leave

the X2 pin open.

Port

0–D 9

14–23

16–25

I/O

Input/output pins addressed by individual bits;

pins D

0–D 9 are high-current pins that can each

supply up to 15 mA

10, D11

24, 25

26, 27

Input pins addressable by individual bits

0–R7 3

26–57

28–59

I/O

Input/output pins addressable in 4-bit units

Interrupt

INT

0, INT1,

INT

2–INT4

25–29

27–31

Input pins for external interrupts

Stop clear

STOPC

Input pin for transition from stop mode to active

mode

Serial

SCK

I/O

Serial interface clock input/output pin

interface

Serial interface receive data input pin

Serial interface transmit data output pin

Timer

TOB, TOC,

TOD

30–32

32–34

Timer output pins

EVNB, EVND

33, 34

35, 36

Event count input pins

LCD

1, V2, V3

94–96

96–98

Power pins for LCD controller/driver; may be left

open during operation since they are connected by

internal voltage division resistors.

Voltage conditions are: V

CC ≥ V1 ≥ V2 ≥ V3 ≥ GND

COM1–COM4

90–93

92–95

Common signal pins for LCD

SEG1–SEG52

38–89

40–91

Segment signal pins for LCD

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