參數(shù)資料
型號: MC68HSC05K0DW
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, MICROCONTROLLER, PDSO16
封裝: SOIC-16
文件頁數(shù): 72/154頁
文件大小: 1544K
代理商: MC68HSC05K0DW
Technical Data
MC68HC05K0 MC68HC05K1 — Rev. 2.0
24
General Description
MOTOROLA
Technical Data
1.6.2.2 Ceramic Resonator
To reduce cost, use a ceramic resonator in place of the crystal. Use the
circuit in Figure 1-5 for a 2-pin ceramic resonator or Figure 1-6 for a
3-pin ceramic resonator and follow the resonator manufacturer’s
recommendations.
Figure 1-5. 2-Pin Ceramic Resonator Connections
Figure 1-6. 3-Pin Ceramic Resonator Connections
The external component values required for maximum stability and
reliable starting depend upon the resonator parameters. The load
capacitance values used in the oscillator circuit design should account
for all stray layout capacitances. To minimize output distortion, mount
the resonator and capacitors as close as possible to the pins.
MCU
VDD
VSS
OSC1
OSC2
CER.
VSS
OSC1
OSC2
CERAMIC
27 pF
C1 C2
C4
C3
RES.
RESONATOR
VDD
2 M
(MASK OPTION)
C3
C4
MCU
VDD
VSS
OSC1
OSC2
CER.
VSS
OSC1
OSC2
CERAMIC
C1 C2
RES.
RESONATOR
VDD
2 M
(MASK OPTION)
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