参数资料
型号: MC68HC705P6AS
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28
封装: PLASTIC, SDIP-28
文件页数: 47/130页
文件大小: 1541K
代理商: MC68HC705P6AS
General Description
Functional Pin Description
MC68HC705P6A — Rev. 2.0
Advance Information
MOTOROLA
General Description
23
Figure 1-2. Oscillator Connections
1.4.2.1 Crystal
The circuit in Figure 1-2(a) shows a typical oscillator circuit for an
AT-cut, parallel resonant crystal. Follow the crystal manufacturer’s
recommendations, as the crystal parameters determine the external
component values required to provide maximum stability and reliable
startup. The load capacitance values used in the oscillator circuit design
should include all stray capacitances. Mount the crystal and components
as close as possible to the pins for startup stabilization and to minimize
output distortion.
1.4.2.2 Ceramic Resonator
In cost-sensitive applications, use a ceramic resonator in place of a
crystal. Use the circuit in Figure 1-2(a) for a ceramic resonator and
follow the resonator manufacturer’s recommendations, as the resonator
parameters determine the external component values required for
maximum stability and reliable starting. The load capacitance values
used in the oscillator circuit design should include all stray capacitances.
Mount the resonator and components as close as possible to the pins for
startup stabilization and to minimize output distortion.
To VDD (or STOP)
(a)
Crystal or Ceramic
Resonator Connections
(b)
External Clock Source
Connections
OSC1
OSC2
MCU
37 pF
4.7 M
MCU
OSC1
OSC2
UNCONNECTED
EXTERNAL CLOCK
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相关代理商/技术参数
参数描述
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MC68HC705P6CP 制造商:Freescale Semiconductor 功能描述: 制造商:Motorola Inc 功能描述:
MC68HC705P6ECDW 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述:
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