HMS38112 datasheet(21/73 Pages) ETC

21 / 73 page

2-6

Pin Description and Circuit

Pin Description

Function

I/O

Connected to 2.0~ 3.6V power supply

Connected to 0V power supply.

4-bit input port with built in pull-up resistor.

STOP mode is released by "L" input of each pin.(masked option)

K0 ~ K3

Input

GND

VDD

Each can be set and reset independently.

The output is the structure of N-channel-open-drain.

2-bit I/O port. (Input mode is set only when each of them output "H".)

In outputting, each can be set and reset independently(or at once.)

The output is in the form of C-MOS.

STOP mode is released by "L" input of each pin.

Pull-up resistor and STOP release mode can be respectively selected

as masked option for each pin.(It is released by “L” input at STOP)

High current output port for driving I.R.LED.

The output is in the form N-channel open drain.

D0 ~ D6

Output

R2 ~ R3

I/O

REMOUT

Output

Oscillator input. Input to the oscillator circuit and connection

point for ceramic resonator.

A feedback resistor is connected between this pin and OSC2.

Connect a resonator between this pin and OSC1.

OSC1

Input

OSC2

Output

2-bit input port with built in pull-up resistor.

STOP mode is released by "L" input of each pin.(masked option)

R0 ~ R1

Input

Chapter 2.HMS39112

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