参数资料
型号: MC68HC05P9AMDW
厂商: FREESCALE SEMICONDUCTOR 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: 57/158页
文件大小: 3885K
代理商: MC68HC05P9AMDW
Pin Descriptions
Pin Functions
Pin Descriptions
Pin Functions
V
DD and VSS
V
DD and VSS are the power supply and ground pins. The MCU operates
from a single 5-V power supply.
Very fast signal transitions occur
on the MCU pins, placing high
short-duration current demands
on the power supply. To prevent
noise problems, take special
care to provide good power
supply bypassing at the MCU as
Figure 3 shows. Place the
bypass capacitors as close as
possible to the MCU. C2 is an
optional bulk current bypass
capacitor for use in applications
that require the port pins to
source high current levels.
OSC1 and OSC2
The OSC1 and OSC2 pins are the connections for the on-chip oscillator.
The oscillator can be driven by any of the following:
Crystal
Ceramic resonator
RC Oscillator
External clock signal
The frequency of the on-chip oscillator is f
OSC. The MCU divides the
internal oscillator output by two to produce the internal clock with a
frequency of f
OP.
MCU
V
DD
V
SS
C1
0.1
F
C2
V
DD
+
Figure 3. Bypassing
Recommendation
7-mc68hc05p9a
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相关PDF资料
PDF描述
MC68HC05P9ACP 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP28
MC68HC05P9DWR2 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC05RC18P 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP28
MC68HC05RC18FN 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC44
MC68HC05SR3FB 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP44
相关代理商/技术参数
参数描述
MC68HC05P9AMP 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P9AP 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P9AVDW 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P9AVP 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P9DW 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT