MB90552APF datasheet(9/64 Pages) FUJITSU

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MB90550A/550B Series

DS07-13706-6E

(Continued)

Pin no.

Pin name

Circuit type

Function

QFP

LQFP

P44

(CMOS/H)

General-purpose I/O port.

Serves as an open-drain output port (OD44 = 1) depending on

the setting of the open-drain control setting register (ODR4).

(D44 = 0: Disabled when the port is set for input.)

SOT1

Extended I/O serial data output pin.

This function is enabled with the extended I/O serial data output

enabled.

P45

(CMOS/H)

General-purpose I/O port.

Serves as an open-drain output port (OD45 = 1) depending on

the setting of the open-drain control setting register (ODR4).

(D45 = 0: Disabled when the port is set for input.)

SIN1

Extended I/O serial data input pin.

Since this input is used as required while the extended I/O serial

interface is operating for input, the output by any other function

must be off unless used intentionally.

P46

(CMOS/H)

General-purpose I/O port.

Serves as an open-drain output port (OD46 = 1) depending on

the setting of the open-drain control setting register (ODR4).

(D46 = 0: Disabled when the port is set for input.)

ADTG

A/D converter external trigger input pin.

Since this input is used as required while the A/D converter is op-

erating for input, the output by any other function must be off un-

less used intentionally.

P47

(CMOS/H)

General-purpose I/O port.

Serves as an open-drain output port (OD47 = 1) depending on

the setting of the open-drain control setting register (ODR4).

D47 = 0: Disabled when the port is set for input.

SCK0

Extended I/O serial clock I/O pin. This function is enabled with

the extended I/O serial clock output enabled.

—

Capacitance pin for regulating the power supply.

Connect an external ceramic capacitor of about 0.1

µF.

P50

(NchOD/H)

N-channel open-drain I/O port.

SDA0

I2C interface data I/O pin.

This function is enabled with the I2C interface enabled for

operation.

While the I2C interface is operating, place the port output in the

Hi-Z state (PDR = 1).

SOT0

Extended I/O serial data output pin.

This function is enabled with the extended I/O serial data output

enabled.

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