參數(shù)資料
型號: uPD750064CUA
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 4位單晶片微控制器
文件頁數(shù): 11/82頁
文件大小: 460K
代理商: UPD750064CUA
11
μ
PD750064, 750066, 750068, 750064(A), 750066(A), 750068(A)
Data Sheet U10165EJ2V0DS00
3.2 Non-port Pins (2/2)
Pin Name
Input/Output
Alternate
Function
Function
After Reset
I/O Circuit
Type
Note
X1
Input
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
Circuit types enclosed in brackets indicate the Schmitt trigger input.
Crystal/ceramic connection pin for the main system
clock oscillation. When inputting the external
clock, input the external clock to pin X1, and the
inverted phase of the external clock to pin X2.
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.
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