參數資料
型號: MC68HC805P18CDW
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, EEPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封裝: SOIC-28
文件頁數: 61/144頁
文件大?。?/td> 1292K
代理商: MC68HC805P18CDW
General Description
Functional Pin Description
MC68HC(8)05P18 — Rev. 2.0
Advance Information
MOTOROLA
General Description
23
Figure 1-3. Oscillator Connections
1.5.4 Reset (RESET)
Driving this input low will reset the MCU to a known startup state. As an
output, the RESET pin indicates that an internal MCU reset has
occurred. The RESET pin contains an internal Schmitt trigger to improve
its noise immunity. Refer to Section 5. Resets.
1.5.5 Port A (PA0–PA7)
These eight I/O pins comprise port A. The state of any pin is software
programmable and all port A lines are configured as inputs during
power-on or reset. For the MC68HC05P18, eight mask options can be
chosen to enable pullups and interrupts (active low) on the port A pins.
For the MC68HC805P18, the pullups and interrupt options (active low)
on the port A pins can be individually programmed in the mask option
register 2 (MOR2).
For further information, refer to Section 4. Interrupts and Section 7.
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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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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相關PDF資料
PDF描述
MC68HC805P18DW 8-BIT, EEPROM, MICROCONTROLLER, PDSO28
MC68HC805P18CDW 8-BIT, EEPROM, MICROCONTROLLER, PDSO28
MC68HC805P18P 8-BIT, EEPROM, MICROCONTROLLER, PDIP28
MC68HC805P18MDW 8-BIT, EEPROM, MICROCONTROLLER, PDSO28
MC68HC805P18MP 8-BIT, EEPROM, MICROCONTROLLER, PDIP28
相關代理商/技術參數
參數描述
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