參數(shù)資料
型號： MC68HSC05C9A
廠商： Motorola, Inc.
元件分類： 8位微控制器
英文描述： 8-Bit Microcontroller(8位微控制器)
中文描述： 8位微控制器（8位微控制器）
文件頁數(shù)： 25/160頁
文件大?。?/td> 783K
代理商： MC68HSC05C9A
General Description
Functional Pin Descriptions
MC68HC05C9A
—
Rev. 4.0
General Release Specification
MOTOROLA
General Description
25
L
G
R
1.6.3 OSC1 andOSC2
These pins provide control input for an on-chip clock oscillator circuit. A
crystal or ceramic resonator connected to these pins provides a system
clock. The internal frequency is one-half the crystal frequency.
1.6.4 RESET
As an input pin, this active low RESET pin is used to reset the MCU to a
known startup state by pulling RESET low. As an output pin, the RESET
pin indicates that an internal MCU reset has occurred. The RESET pin
contains an internal Schmitt trigger as part of its input to improve noise
immunity. Refer to
Section 5. Resets
for more detail.
1.6.5 TCAP
This pin controls the input capture feature for the on-chip programmable
timer. The TCAP pin contains an internal Schmitt trigger as part of its
input to improve noise immunity. Refer to
Section 8. Capture/Compare
Timer
for more detail.
1.6.6 TCMP
The TCMP pin provides an output for the output compare feature of the
on-chip programmable timer. Refer to
Section 8. Capture/Compare
Timer
for more detail.
1.6.7 PA0–PA7
These eight I/O lines comprise port A. The state of each pin is software
programmable and all port A pins are configured as inputs during reset.
Refer to
Section 7. Input/Output Ports
for more detail.
1.6.8 PB0–PB7
These eight I/O lines comprise port B. The state of each pin is software
programmable and all port B pins are configured as inputs during reset.
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