參數資料
型號: MC68HC05P18A
廠商: Motorola, Inc.
英文描述: Low Cost HCMOS Microcontroller(低成本、8位HCMOS微控制器)
中文描述: 低成本HCMOS微控制器(低成本,8位HCMOS微控制器)
文件頁數: 21/130頁
文件大?。?/td> 1200K
代理商: MC68HC05P18A
General Description
Functional Pin Description
MC68HC05P18A
Technical Data
MOTOROLA
General Description
21
L
G
R
The frequency, f
OSC
, of the oscillator or external clock source is divided
by two to produce the internal PH2 bus clock operating frequency, f
OP
.
The oscillator cannot be turned off by software if the stop-to-halt
conversion is enabled via mask option.
Figure 1-3. Oscillator Connections
1.5.2.1 Crystal
The circuit in
Figure 1-3
(a)
shows a typical oscillator circuit for an
AT-cut, parallel resonant crystal.
NOTE:
The crystal manufacturer’s recommendations should be followed, 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.
TO V
DD
OR STOP
TO V
DD
OR STOP
(a)
Crystal or Ceramic
Resonator Connections
(b)
External Clock Source
Connections
OSC1
OSC2
MCU
37 pF
37 pF
4.7 M
MCU
OSC1
OSC2
UNCONNECTED
EXTERNAL CLOCK
相關PDF資料
PDF描述
MC68HC05P4A 28-pin MCU (microcontroller unit) based on the MC68HC05P4(28引腳、基于MC68HC05P4升級的8位微控制器單元)
MC68HC05PV8A Low Cost HCMOS Microcontroller(低成本、8位HCMOS微控制器)
MC68HC05SR3 8-Bit Microcontroller Units (MCU).(8位微控制器)
MC68HC05V7 8-Bit Microcontroller Units (MCU).(8位微控制器)
MC68HC05X16 8-Bit Microcontroller Units (MCU).(8位微控制器)
相關代理商/技術參數
參數描述
MC68HC05P18ACDW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P18ACP 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P18ADW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P18AMDW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P18AMP 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit