參數(shù)資料
型號: UPD75312BGC
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 4位單片機
文件頁數(shù): 7/77頁
文件大?。?/td> 587K
代理商: UPD75312BGC
7
μ
PD75312B, 75316B
I/O Circuit
Type
*1
B
F - A
F - B
M - C
B - C
E - B
E - B
M
M
3.
PIN FUNCTIONS
3.1
PORT PINS (1/2)
*
1.
2.
LED direct drive possible
: Schmitt triggered input
Dual-
Function Pin
INT4
SCK
SO/SB0
SI/SB1
INT0
INT1
INT2
TI0
PTO0
PCL
BUZ
LCDCL
SYNC
With noise elimination function
Pin Name
P00
P01
P02
P03
P10
P11
P12
P13
P20
P21
P22
P23
P30
*2
P31
*2
P32
*2
P33
*2
P40 to P43
*2
P50 to P53
*2
Input/Output
Input
Input/output
Input/output
Input/output
Input
Input/output
Input/output
Input/output
Input/output
Function
4-bit input port (PORT 0)
On-chip pull-up resistor can be specified for
P01 to P03 as a 3-bit unit by software.
4-bit input port (PORT 1)
On-chip pull-up resistor can be specified as a
4-bit unit by software.
4-bit input/output port (PORT 2)
On-chip pull-up resistor can be specified as a
4-bit unit by software.
Programmable 4-bit input/output port (PORT 3)
Input/output can be specified bit-wise.
On-chip pull-up resistor can be specified as a
4-bit unit by software.
N-ch open-drain 4-bit input/output port (PORT
4)
On-chip pull-up resistor can be specified bit-
wise (mask option).
Open-drain: 10-V withstand voltage
N-ch open-drain 4-bit input/output port (PORT
5)
On-chip pull-up resistor can be specified bit-
wise (mask option).
Open-drain: 10-V withstand voltage
Reset
Input
Input
Input
Input
High level (on-
chip pull-up
resistor) or high-
impedance
High level (on-
chip pull-up
resistor) or high-
impedance
8-bit I/O
×
×
×
×
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