参数资料
型号: MC68HC705C8ACP
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: HCMOS Microcontroller Unit
中文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP40
封装: PLASTIC, DIP-40
文件页数: 17/108页
文件大小: 718K
代理商: MC68HC705C8ACP
Pin Functions
MC68HC705KJ1 MC68HRC705KJ1 MC68HLC705KJ1 Data Sheet, Rev. 4.1
Freescale Semiconductor
17
Figure 1-4. Crystal Connections with
Oscillator Internal Resistor Mask Option
Figure 1-5. Crystal Connections without
Oscillator Internal Resistor Mask Option
1.4.2.2 Ceramic Resonator Oscillator
To reduce cost, use a ceramic resonator instead of the crystal. The circuits shown in
Figure 1-6
and
Figure 1-7
show ceramic resonator circuits. Follow the resonator manufacturer’s recommendations, as
the resonator parameters determine the external component values required for maximum stability and
reliable starting. The load capacitance values used in the oscillator circuit design should include all stray
capacitances.
Mount the resonator and components as close as possible to the pins for startup stabilization and to
minimize output distortion. An internal startup resistor of approximately 2 M
is provided between OSC1
and OSC2 as a programmable mask option.
MCU
C1
C2
XTAL
C4
C3
XTAL
C3
27 pF
C4
27 pF
O
O
OSC1
OSC2
V
SS
V
DD
V
SS
MCU
C1
C2
R
XTAL
C4
C3
R
10 M
XTAL
C3
27 pF
C4
27 pF
OSC1
OSC2
V
DD
V
SS
O
O
V
SS
相关PDF资料
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相关代理商/技术参数
参数描述
MC68HC705C8ACPB 制造商:Freescale Semiconductor 功能描述:
MC68HC705C8ACPE 制造商:Freescale Semiconductor 功能描述:
MC68HC705C8AFNE 功能描述:8位微控制器 -MCU HC05 CORE + 8K RAM + EPR RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
MC68HC705C8AFU 制造商:Rochester Electronics LLC 功能描述:8-BIT MCU W/BLANK EPROM - Bulk
MC68HC705C8AVFB 制造商:Rochester Electronics LLC 功能描述:- Bulk