ML22Q533 datasheet(4/178 Pages) ROHM

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FEDL22Q53X-02

ML22Q53X

■ Pin Description

Symbol

I/O

Attribute

Description

Initial

value

1,25

DGND

Digital ground pin.

—

SCL

2C slave serial clock pin.

When using an I

2C, be sure to insert a pull-up resistor between DV

pin.

Accessing with clock synchronous serial interface at the same time is

prohibited.

SDA

2C slave serial data input/output pin.

When using an I

2C, be sure to insert a pull-up resistor between DV

pin.

Output: Nch MOS OPEN DRAIN output

Input: High-impedance input

Accessing with clock synchronous serial interface at the same time is

prohibited.

LRCLK

SAI word clock input pin.

BCLK

SAI bit clock input pin.

SAI_IN

SAI bit data input pin.

The data are loaded at the rising edges of BCLK.

SAI_OUT

SAI bit data output pin. Output data at the falling edge of BCLK.

CSB

Negative

Clock synchronous serial interface chip select pin.

The SCK and SI inputs are accepted only when this pin is at the "L"

level.

Accessing with I

2C slave interface at the same time is prohibited.

SCK

Clock synchronous serial interface clock input pin.

Accessing with I

2C slave interface at the same time is prohibited.

Clock synchronous serial interface data input pin.

Data is fetched in synchronization with SCK.

Accessing with I

2C slave interface at the same time is prohibited.

Clock synchronous serial interface data output pin.

When the CSB pin is at an "L" level, data is output in synchronization

with SCK.

When the CSB pin is at an "H" level, this pin enters a high-impedance

state.

Accessing with I

2C slave interface at the same time is prohibited.

Hi-Z

IRCSB

Negative

Flash memory interface chip select input pin.

Input the "H" level during non-access and the "L" level during access.

Setting the IRON pin to "H" enables input.

IRSCK

Flash memory interface serial clock input pin.

Setting the IRON pin to "H" enables input.

IRSO

Flash memory interface serial data output pin.

Setting the IRON pin to "H" enables output.

Hi-Z

IRSI

Flash memory interface serial data input pin.

Setting the IRON pin to "H" enables input.

IRON

Positive

Pin to enable the flash memory interface.

When this bit is set to "L", the flash memory interface pin is disabled. A

pull-down resistor is internally connected to the LSI.

Set this bit to "L" during playback operation using flash memory.

Setting this bit to "H" allows rewriting of the flash memory using the

flash memory interface.

Set this bit to "H" for onboard rewriting.

*1 Initial value at reset input and power-down. The pin whose IO is "I" indicates a fixed level from outside.

*2 IRON pin "L" setting status

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