UPD75048CW 查看數據表（PDF） - NEC => Renesas Technology
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UPD75048CW Datasheet PDF : 68 Pages
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µPD75048
3. PIN FUNCTIONS
3.1 PORT PINS
Pin Name Input/Output Also Served
As
Function
8-Bit I/O When Reset
Input/
P00
Output
INT4
P01
P02
P03
P10
P11
P12
P13
P20
P21
P22
P23
P30*2
P31*2
P32*2
P33*2
Input/
Output
Input/
Output
Input/
Output
Input
Input/
Output
Input/
Output
P40-43*2
Input/
Output
P50-53*2
Input/
Output
SCK
4-bit input/output port(PORT0)
Pull up resistros can be specified in 3-bit X
SO/SB0
units for the P01 to P03 pins by software.
Input
SO/SB1
INT0
INT1
INT2
TI0
PTO0
PPO
PCL
BUZ
—
—
—
—
—
—
With noise elimination function
4-bit input port(PORT1)
Internal pull-up resistors can be
X
specified in 4-bit units by software.
Input
4-bit input/output port(PORT2)
Internal pull-up resistors can be
specified in 4-bit units by software.
X
Input
Programmable 4-bit input/output port
(PORT3)
This port can be specified for input/
output in bit units.
Internal pull-up resistors can be
specified in 4-bit units by software.
N-ch open-drain 4-bit input/output port
(PORT4)
Internal pull-up resistors can be
specified in 4-bit units (by mask option).
Resistive voltage is 10V in the open-
drain mode.
N-ch open-drain 4-bit input/output port
(PORT5)
Internal pull-up resistors can be
specified in bit units (by mask option).
Resistive voltage is 10V in the open-
drain mode.
X
Input
High level
(with internal
pull-up
register) or
high imped-
ance
High level
(with internal
pull-up
register) or
high imped-
ance
*1: Circles indicate Schmitt trigger inputs.
2: Can directly drive LED.
Input/
Output
Circuit
TYPE*1
B
F -A
F -B
M -C
B -C
E -B
E -B
M
M
9
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