參數(shù)資料
型號(hào): UPD17232MC
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): 9/92頁(yè)
文件大小: 378K
代理商: UPD17232MC
Data Sheet U14360EJ1V0DS00
μ
PD17230, 17231, 17232, 17233, 17234, 17235, 17236
9
1.1
Pin Function List (2/2)
Pin No.
Symbol
Function
Output Form
On Reset
23 (24)
24 (25)
25 (26)
26 (27)
P0C
0
P0C
1
P0C
2
P0C
3
These pins constitute a 4-bit I/O port that can be set in the input or
output mode in 4-bit units (group I/O).
In the input mode, these pins are CMOS input pins with a pull-up
resistor, and can be used as the key return input lines of a key
matrix. The standby status is released when at least one of these
pins goes low.
In the output mode, they serve as N-ch open-drain output pins and
can be used as the output lines of a key matrix.
N-ch
Low-level
output
open-drain
(15)
(30)
IC1
IC2
These pins cannot be used.
Leave open.
Remark
The number in parenthesis in the Pin No. column indicates the pin numbers of the 30-pin plastic SSOP.
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