参数资料
型号: MC68HC05E1DWR2
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封装: SOIC-28
文件页数: 10/86页
文件大小: 491K
代理商: MC68HC05E1DWR2
General Release Specication
MC68HC05E1 — Revision 2.0
18
General Description
MOTOROLA
General Description
Figure 1-2. Oscillator Connections
1.5.4 RESET
This active low pin is used to reset the MCU to a known start-up state by
pulling RESET low. The RESET pin contains an internal Schmitt trigger
as part of its input to improve noise immunity. See 3.6 Resets.
1.5.5 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 input during
power-on or reset. See 4.6 Input/Output Programmingf.
1.5.6 PB0-PB7
These eight I/O lines comprise port B. The state of any pin is software
programmable and all port B lines are configured as input during
power-on or reset. See 4.6 Input/Output Programmingf.
<
OSC1
OSC2
OSC1
OSC2
MCU
External Clock
Unconnected
(a) Crystal/Ceramic Resonator
(b) External Clock Source
330 k
20 M
32.768 kHz
Oscillator Connections
Connections
33 pF
10 PF
相关PDF资料
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