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參數(shù)資料
| 型號(hào)： | MC68HC05RC18FN |
| 廠商： | MOTOROLA INC |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁(yè)數(shù)： | 42/124頁(yè) |
| 文件大?。?/td> | 457K |
| 代理商： | MC68HC05RC18FN |
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NON-DISCLOSURE
AGREEMENT
REQUIRED
General Description
General Release Specification
MC68HC05RC18 — Rev. 2.0
24
General Description
MOTOROLA
NOTE:
The frequency of the internal oscillator is fosc. The MCU divides the
internal oscillator by two to produce the internal clock with a frequency
of fop.
1.5.3.1 Crystal Resonator
The circuit in Figure 1-5 shows a crystal oscillator circuit for an AT-cut,
parallel resonant crystal. Follow the crystal supplier’s recommendations,
because the crystal parameters determine the external component
values required to provide reliable startup and maximum stability. The
load capacitance values used in the oscillator circuit design should
account for all stray layout capacitances. To minimize output distortion,
mount the crystal and capacitors as close as possible to the pins.
Figure 1-5. Crystal Connections
NOTE:
Use an AT-cut crystal and not a strip or tuning fork crystal. The MCU
might overdrive or have the incorrect characteristic impedance for a strip
or tuning fork crystal.
OSC1
OSC2
MCU
10 M
*
30 pF*
4.2 MHz
XTAL
* Starting value only. Follow crystal supplier’s recommenda-
. tions regarding component values that will provide reliable
. startup and maximum stability.
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相關(guān)代理商/技術(shù)參數(shù) |
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| MC68HC05RC8 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:General Release Specification |
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| MC68HC05RC8FN | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:General Release Specification |
| MC68HC05RC8P | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:General Release Specification |
| MC68HC05SC24 | 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:Secure 8-bit microcomputer with EEPROM |
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