W55P241 Datasheet, PDF (4/32 Pages) List of Unclassifed Manufacturers – I/O device usable with many different microprocessors through SPI interface

W55P241
3. PIN DESCRIPTION
PIN NAME
BP00~BP07
BP10~BP17
BP20~BP27
/CS
CLK
DI
DO
DIS
WAKEUP
VDD
VSS
VDDIO1
VSSIO1
VDDIO2
VSSIO2
TYPE
I/O
I/O
I/O
I
I
I
O
I
O
P
P
P
P
P
P
FUNCTION
General input/output pins. When used as output pins, they can be
open-drain or CMOS-type and can sink 25mA for high-current
applications. When used as input pins, they have a pull-high option
and can generate an interrupt request to release the IC from STOP
mode.
The default is input floating in the BP0 port. The BP0 port provides
8 LED outputs with 256-level brightness control.
General input/output pins. When used as output pins, they can be
open–drain or CMOS type and can sink 25mA for high-current
applications. When used as input pins, they have a pull-high option
and can generate an interrupt request to release the IC from STOP
mode.
The default is input floating in the BP1 port.
General input/output pins. When used as output pins, they can be
open–drain or CMOS type and can sink 25mA for high-current
applications. When used as input pins, they have a pull-high option
and can generate an interrupt request to release the IC from STOP
mode.
The default is input floating in the BP2 port.
SPI chip select (low active)
SPI clock
SPI data input (MOSI)
SPI data output (MISO)
Device ID setting(default is floating)
Host wakeup
Positive power supply for logical device
Negative power supply for logical device
Positive power supply for IO
Negative power supply for IO
Positive power supply for IO
Negative power supply for IO
-4-