參數(shù)資料
型號(hào)： UPD754304GSA
廠商： NEC Corp.
元件分類： 4位微控制器
英文描述： 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述： 4位單片機(jī)的小型通用紅外遙控器
文件頁(yè)數(shù)： 20/74頁(yè)
文件大?。?/td> 316K
代理商： UPD754304GSA
μ
PD754302, 754304, 754302(A), 754304(A)
20
6. PERIPHERAL HARDWARE FUNCTIONS
6.1 Digital Input Ports
The following three types of I/O ports are provided.
CMOS input (Ports 0, 1)
CMOS I/O (Ports 2, 3, 6 to 8)
N-ch open-drain I/O (Port 5)
:
: 18
:
8
4
Total
30
Table 6-1. Types and Features of Digital Ports
Port Name
Function
Operation, Features
Remark
PORT0
4-bit input
When serial interface function is used, multiplexed pin
has output function depending on operation mode.
Multiplexed with INT4, SCK,
SO/SB0, and SI pins
PORT1
Input port.
Multiplexed with INT0
through INT2 and TI0/TI1 pins.
PORT2
4-bit I/O
Can be set in input or output mode in 4-bit units.
Multiplexed with PTO0, PTO1,
and PCL pins.
PORT3
Can be set in input or output mode in 1-bit units.
—
PORT5
4-bit I/O
(N-ch open-
drain, 13 V)
Can be set in input or output mode in 4-bit units. Pull-up
resistor can be connected in 1-bit units by mask option.
PORT6
4-bit I/O
Can be set in input or
output mode in 1-bit units.
Ports 6 and 7 are used in
pairs and can input or
Multiplexed with KR0 through
KR3 pins.
PORT7
Can be set in input or
output mode in 4-bit units.
output data in 8-bit units.
Multiplexed with KR4 through
KR7 pins.
PORT8
2-bit I/O
Can be set in input or output mode in 2-bit units.
—
相關(guān)PDF資料
PDF描述
UPD754302GS 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
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UPD754302GS-XXX 4-Bit Microcontroller
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