參數(shù)資料
型號(hào): UPD753108GC
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
文件頁數(shù): 12/90頁
文件大?。?/td> 547K
代理商: UPD753108GC
12
μ
PD753104, 753106, 753108
3.2 Non-port Pins (2/2)
Pin Name
Input/Output
Alternate
Function
Function
After Reset
I/O Circuit
TYPE
Note
X1
Input
Crystal/ceramic connection pin for the main
system clock oscillation. When the external
clock is used, input the external clock to pin
X1, and the inverted phase of the external clock
to pin X2.
XT1
Input
XT2
RESET
Input
System reset input (low-level active)
(B)
IC
Internally connected. Connect directly to V
DD
.
V
DD
Positive power supply
V
SS
Ground potential
Note
Characters in parentheses indicate the Schmitt trigger input.
Crystal connection pin for the subsystem clock
oscillation. When the external clock is used, input
the external clock to pin XT1, and the inverted
phase of the external clock to pin XT2. Pin XT1 can
be used as a 1-bit input (test) pin.
X2
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