您的位置：维库电子市场网 > Datasheet > CR16MCS5VJI8

CR16MCS5VJI8 Datasheet

  • CR16MCS5VJI8

  • Family of 16-bit CAN-enabled CompactRISC Microcontrollers

  • 713.21KB

  • 156页

  • NSC

阅览下载 纠错 0

扫码查看芯片数据手册

上传产品规格书

PDF预览

12.0 Dual Clock and Reset
The Dual Clock and Reset module (CLK2RES) generates a
high-speed main system clock from an external crystal net-
work and a slow clock (32.768 kHz or other rate) for operat-
ing the device in Power Save mode. It also provides the main
system reset signal, a power-on reset function, a main clock
prescaler to generate two additional low speed clocks, and
an 32kHz oscillator start-up delay.
Figure7 is block diagram of the Dual Clock and Reset mod-
ule.
Reset
Power-On-Reset
System
Reset
Stop Main Osc.
Preset
X1CKI
Start-Up-Delay
14-Bit Timer
X1CKO
Main Osc.
4-Bit
Prescaler
4-Bit
Prescaler
Div.
by-2
X2CKI
32kHz Osc.
8-Bit
Prescaler
Stop
Main Osc In
Time-out
Good Main
Clk
Main Clk
2 Low
Speed Clk
Outputs
Low Speed
Clk
Mux
Start-Up-Delay
6-Bit Timer
X2CKO
Preset
Time-out
Good Low
Speed Clk
Stop 32kHz Osc.
Figure 7.
Dual Clock and Reset Module Block Diagram
Stop Low
Speed Clk
12.1
EXTERNAL CRYSTAL NETWORK
An external crystal network is required at pins X1CKI and
X1CKO for the main clock. A similar external crystal network
may be used at pins X2CKI and X2CKO for the slow clock in
packages that have these pins. If an external crystal network
is not used for the slow clock, the clock is generated by divid-
ing the fast main clock.
The crystal oscillator you choose may require external com-
ponents different from the ones specified above. In that case,
consult with National鈥檚 engineer for the component specifica-
tions
The crystals and other oscillator components should be
placed close to the X1CKI/X1CLO and X2CKI/X2CLO device
input pins to keep the printed trace lengths to an absolute
minimum.
Figure8 shows the required crystal network at X1CKI/
X1CKO and optional crystal network at X2CKI/X2CKO.
Table13 shows the component specifications for the main
crystal network and Table14 shows the component specifi-
cations for the 32.768 kHz crystal network.
39
www.national.com

CR16MCS5VJI8相关型号PDF文件下载

您可能感兴趣的PDF文件资料

热门IC型号推荐

©2024 维库电子市场网（www.dzsc.com）　备案号：浙B2-20050339-1 经营许可证：浙B2-20210386版权声明
买家服务热线：0571-85317607 | 买家服务部QQ： QQ:1609526468
卖家服务热线：0571-85317607 | 卖家服务部QQ： QQ:331652727

扫码下载APP，
一键连接广大的电子世界。

在线人工客服

买家服务：
卖家服务：

0571-85317607

客服在线时间周一至周五
9:00-17:30

关注官方微信号，
第一时间获取资讯。

建议反馈
返回顶部

建议反馈

联系人：

联系方式：

按住滑块，拖拽到最右边
>>
感谢您向阿库提出的宝贵意见，您的参与是维库提升服务的动力！意见一经采纳，将有感恩红包奉上哦！

PDF纠错X

投诉电话：0571-85317607 投诉QQ：

如选匿名将无法为您反馈投诉结果，建议实名投诉！