W567CP260

16-CHANNEL SPEECH+MELODY PROCESSOR

(BandDirector

- 4 -

Publication Release Date: Sep. 2012

Revision A0

3. PIN DESCRIPTION

PIN NAME

I/O

FUNCTION

/RESET

I

IC reset input, low active.

OSCIN

I

Main-clock oscillation input. When Ring type is used, connects Rosc

between OSCIN and VSS to generate the system clock frequency.

Reserved one 100pF~200pF capacity to Vdd from OSCin pin to make

Ring frequency stability

When use X

’tal, it is X’tal IN.

OSCOUT

O

Main-clock oscillation output only for X

’tal.

X32I

I

32 KHz crystal oscillator with divider for time-keeping application

X32O

Out

32 KHz crystal oscillator with divider for time-keeping application

BP00~BP07

I/O

General input/output pins. When used as output pin, it can be open

–drain

or CMOS type and it can sink 25mA for high-current applications. When

used as input pin, there may have a pull-high option and generate

interrupt request to release IC from STOP mode.

When BP07 is used as output pin, it can be the IR transmission carrier for

IR applications. BP04~BP06 are used as 3 LED outputs with 256-level

control.

BP00~BP03 share pins to program OTP

BP10~BP17

I/O

General input/output pins. When used as output pin, it can be open

–drain

or CMOS type. When used as input pin, there may have a pull-high option

and generate interrupt request to release IC from STOP mode.

When serial interface is enabled, and set memory type as W55F/W551C,

BP14~BP16 are used to be an interface with the external memory,

W55Fxx or W551Cxxx. If set memory to SPI flash, BP13~BP16 are used

to be an interface.

BP20~BP27

I/O

General input/output pins. When used as output pin, it can be open

–drain

or CMOS type. When used as input pin, there may have a pull-high option

and generate interrupt request to release IC from STOP mode.

PWM+/DAC

O

PWM driver positive output or Current type DAC output

PWM-

O

PWM driver negative output

TEST

I

Test input, internally pulled low. Do not connect during normal operation.

VDD

Power

Positive power supply for uP and peripherals.

All VDD pins must be bonded out and connect to VDD

VSS

Power

Negative power supply for uP and peripherals.

VDDOSC

Power

Positive power supply for oscillation.

VDDSPK

Power

Positive power supply for speaker driver.

VSSSPK

Power

Negative power supply for speaker driver.

VDD_BP1

Power

Positive power supply for BP1 including serial interface Management

(SIM).