- 您现在的位置：买卖IC网 > PDF目录69027 > MC68HC08AS20VFNR2 (MOTOROLA INC) 8-BIT, MROM, MICROCONTROLLER, PQCC52 PDF资料下载
参数资料
| 型号： | MC68HC08AS20VFNR2 |
| 厂商： | MOTOROLA INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, MICROCONTROLLER, PQCC52 |
| 封装： | PLASTIC, LCC-52 |
| 文件页数： | 9/96页 |
| 文件大小： | 3243K |
| 代理商： | MC68HC08AS20VFNR2 |
第1页第2页第3页第4页第5页第6页第7页第8页当前第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页
2
MC68HC05E0
MOTOROLA
2-1
FUNCTIONAL PIN DESCRIPTION
2
FUNCTIONAL PIN DESCRIPTION
All signal inputs on the MC68HC05E0 except RESET and OSC1 are TTL compatible.
2.1
VDD and VSS
Power is supplied to the microcontroller via two VDD and two VSS pins. VDD is the positive supply
and VSS is ground.
2.2
OSC1/OSC2
These pins provide control input for an on-chip clock oscillator circuit. A crystal, ceramic resonator
or external clock signal connected to these pins provides the oscillator clock. The oscillator
frequency is divided by 2 to provide the internal bus frequency.
2.2.1
Crystal
The circuit shown in Figure 2-1(b) is recommended when using a crystal. The internal oscillator is
designed to interface with an AT-cut parallel-resonant quartz crystal resonator in the frequency
range specied for fosc (refer to Section 9.5). Use of an external CMOS oscillator is recommended
when crystals outside the specied ranges are to be used. The crystal and components should be
mounted as close as possible to the input pins to minimise output distortion and startup
stabilization time.
2.2.2
Ceramic Resonator
A ceramic resonator may be used in place of the crystal in cost-sensitive applications. The circuit
in Figure 2-1(b) is recommended when using a ceramic resonator. Figure 2-1(a) lists the
17
相关PDF资料 |
PDF描述 |
|---|---|
| MC68HC08AS20CFN | 8-BIT, MROM, MICROCONTROLLER, PQCC52 |
| MC68HC08AZ48AVFU | 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64 |
| MC68HC08AZ60FU | 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64 |
| MC68HC08AZ60FU | 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64 |
| MC68HC08AZ60MFU | 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC68HC08AZ0 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Advance Information |
| MC68HC08AZ0CFU | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Advance Information |
| MC68HC08AZ16 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:HCMOS Microcontroller Unit |
| MC68HC08AZ24 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:HCMOS Microcontroller Unit |
| MC68HC08AZ32 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Advance Information |
发布紧急采购，3分钟左右您将得到回复。