參數(shù)資料
型號: MC68HC05K3CDWR2
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDSO16
封裝: SOIC-16
文件頁數(shù): 51/132頁
文件大?。?/td> 1188K
代理商: MC68HC05K3CDWR2
General Description
Functional Pin Description
MC68HC05K3 — Revision 4.0
Technical Data
MOTOROLA
General Description
25
inverted. The edge or level sensitivity selected by the mask option for the
IRQ pin also applies to the I/O pins ORed to create an IRQ signal.
The IRQ pin contains an internal Schmitt trigger to improve noise
immunity. For more details, see Section 4. Interrupts.
1.7.5 PA0–PA7
These eight I/O lines 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, except in serial program mode. The four upper-order
I/O pins (PA4–PA7) are capable of sinking higher currents. The four
lower-order I/O pins (PA0–PA3) can be connected via an internal OR
gate to the IRQ interrupt function by a mask option. All the port A pins
can have software programmable pulldown devices provided by another
details on the I/O ports.
1.7.6 PB0
The state of the PB0 pin is software programmable and is configured as
an input during power-on or reset, except in serial program mode. This
pin can have a software programmable pulldown device provided by a
details on the I/O ports.
1.7.7 PB1/OSC3
The state of the PB1/OSC3 pin is software programmable and is
configured as an input during power-on or reset, except in serial program
mode or when the 3-pin RC oscillator configuration is selected by mask
option. This pin can have a software programmable pulldown device
provided by a mask option. See Section 7. Parallel Input/Output (I/O)
for more details on the I/O ports.
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