參數(shù)資料
型號: MC68HLC705KJ1CP
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, PDIP16
封裝: PLASTIC, DIP-16
文件頁數(shù): 8/117頁
文件大?。?/td> 1644K
代理商: MC68HLC705KJ1CP
MC68HRC705KJ1
RC Oscillator Connections (No External Resistor)
MC68HC705KJ1MC68HRC705KJ1MC68HLC705KJ1 — Rev. 4.0
Data Sheet
MOTOROLA
MC68HRC705KJ1
105
A.4 RC Oscillator Connections (No External Resistor)
For maximum cost reduction, the RC oscillator mask connections shown in
Figure A-3 allow the on-chip oscillator to be driven with no external components.
This can be accomplished by programming the oscillator internal resistor
(OSCRES) bit in the mask option register to a logic 1. When programming the
OSCRES bit for the MC68HRC705KJ1, an internal resistor is selected which yields
typical internal oscillator frequencies as shown in Figure A-4. The internal
resistance for this device is different than the resistance of the selectable internal
resistor on the MC68HC705KJ1 and the MC68HRC705KJ1 devices.
Figure A-3. RC Oscillator Connections (No External Resistor)
MCU
VDD
VSS
C1
C2
OSC1
OSC2
OSC1
OS
C2
R
(EXTERNAL CONNECTIONS LEFT OPEN)
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