參數(shù)資料
型號: UPD753036
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位單片機的小型通用紅外遙控器
文件頁數(shù): 11/88頁
文件大?。?/td> 373K
代理商: UPD753036
11
μ
PD753036, 753036(A)
Data Sheet U11353EJ4V0DS00
3.2 Non-Port Pins (2/2)
Pin Name
Input/Output
Alternate
Function
Function
State after
Reset
I/O Circuit
Type
Note 1
LCDCL
Note 2
Output
P30
Clock output for externally expanded driver
Input
E-B
SYNC
Note 2
Output
P31
Clock output for externally expanded driver sync
Input
E-B
X1
X2
Input
Crystal/ceramic connection pin for the main
system clock oscillator. When inputting the
external clock, input the external clock to pin
X1, and the reverse 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
GND
Notes 1.
Circled characters indicate the Schmitt-trigger input.
These pins are provided for future system expansion. At present, these pins are used only as pins
P30 and P31.
2.
Crystal connection pin for the subsystem clock oscillator.
When the external clock is used, input the external
clock to pin XT1 and the reverse phase of the
external clock to pin XT2. Pin XT1 can be used as
a 1-bit input (test) pin.
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