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參數資料
型號: MC68HC05P4A
廠商: Motorola, Inc.
英文描述: 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)
中文描述: 28引腳單片機(微控制器)的基礎上MC68HC05P4(28引腳,基于MC68HC05P4升級的8位微控制器單元)
文件頁數: 43/102頁
文件大小: 930K
代理商: MC68HC05P4A
MC68HC05P4A — Rev. 6.0
Advance Information
MOTOROLA
Resets
43
Advance Information — MC68HC05P4A
Section 5. Resets
5.1 Contents
5.2
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
5.3
Power-On Reset (POR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
5.4
RESET Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
5.5
Computer Operating Properly (COP) Reset. . . . . . . . . . . . . . .44
5.2 Introduction
The MCU can be reset three ways:
1.
Initial power-on reset function
2.
Active low input to the RESET pin
3.
Computer operating properly (COP) watchdog timer timeout
5.3 Power-On Reset (POR)
An internal reset is generated on power-up to allow the internal clock
generator to stabilize. The power-on reset is strictly for power turn-on
conditions and should not be used to detect a drop in the power supply
voltage.
There is a 4064 internal processor clock cycle (t
cyc
) oscillator
stabilization delay after the oscillator becomes active. If the RESET pin
is low at the end of this 4064-cycle delay, the MCU will remain in the
reset condition until RESET goes high.
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相關代理商/技術參數
參數描述
MC68HC05P4DW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC05P4P 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC05P6 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC05P6_1 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC05P8 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
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