W567CXXX Datasheet, PDF (4/13 Pages) List of Unclassifed Manufacturers – 16-CHANNEL SPEECH+MELODY PROCESSOR

W567CXXX
3. PIN DESCRIPTION
PIN NAME
/RESET
OSCIN
OSCOUT
X32I
X32O
BP00~BP07
BP10~BP17
BP20~BP27
PWM+/DAC
PWM-
PWM1+/DAC1¹
PWM1-
TEST
VDD
VDD1
VSS
VDDOSC
I/O
I
I
O
I
Out
I/O
I/O
I/O
O
O
O
O
I
Power
Power
Power
Power
FUNCTION
IC reset input, low active.
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.
Main-clock oscillation output only for X’tal.
32 KHz crystal oscillator with divider for time-keeping application
32 KHz crystal oscillator with divider for time-keeping application
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.
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.
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 driver positive output or Current type DAC output
PWM driver negative output
PWM driver positive output or Current type DAC output
PWM driver negative output
Test input, internally pulled low. Do not connect during normal operation.
Positive power supply for uP and peripherals.
All VDD pins must be bonded out and connect to VDD
Only W567C151/171 for Positive power supply for uP and peripherals.
It needs be bonded out and connect to VDD.
Negative power supply for uP and peripherals.
Positive power supply for oscillation.
1 _{Only W567Cxx6 series provides these pins for dual speaker output.}
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