參數資料
型號: MC68HLC705KJ1CDW
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDSO16
封裝: SOIC-16
文件頁數: 27/117頁
文件大?。?/td> 1644K
代理商: MC68HLC705KJ1CDW
Introduction
Pin Functions
MC68HC705KJ1MC68HRC705KJ1MC68HLC705KJ1 — Rev. 4.0
Data Sheet
MOTOROLA
Introduction
17
To minimize output distortion, mount the crystal and capacitors as close as
possible to the pins. An internal startup resistor of approximately 2 M
is provided
between OSC1 and OSC2 for the crystal oscillator as a programmable mask
option.
NOTE:
Use an AT-cut crystal and not an AT-strip crystal because the MCU can overdrive
an AT-strip crystal.
Figure 1-4. Crystal Connections with
Oscillator Internal Resistor Mask Option
Figure 1-5. Crystal Connections without
Oscillator Internal Resistor Mask Option
MCU
C1
C2
XTAL
C4
C3
XTAL
C3
27 pF
C4
27 pF
OSC
1
OSC2
OSC1
OSC2
VSS
VDD
VSS
MCU
C1
C2
R
XTAL
C4
C3
R
10 M
XTAL
C3
27 pF
C4
27 pF
OSC1
OSC2
VDD
VSS
OSC1
OSC2
VSS
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