Arithmetic Logic Functions | MC14490
概览
MC14490 使用互补 MOS 增强模式器件构建而成，用于消除与机械触点接口时导致的过大电平变化。数字触点跳动消除器电路从跳动触点获取输入信号，该输入稳定之后生成一个明确的数字信号四时钟时段。跳动消除器电路将消除触点壳体“合”和“开”上的跳动。MC14490 的运行时钟来自内部 R-C 振荡器，仅需一个外部电容器即可针对所需运行频率（跳动延迟）进行调节。该时钟还可从外部时钟源或另一个 MC14490 的振荡器驱动（参见图 5）。注释： 通电之后，MC14490 的输出将立即进入非确定状态。
- Diode Protection on All Inputs
- Six Debouncers Per Package
- Internal Pullups on All Data Inputs
- Can Be Used as a Digital Integrator, System Synchronizer, or Delay Line
- Internal Oscillator (R-C), or External Clock Source
- TTL Compatible Data Inputs/Outputs
- Single Line Input, Debounces Both "Make" and "Break" Contacts
- Does Not Require "Form C" (Single Pole Double Throw) Input Signal
- Cascadable for Longer Time Delays
- Schmitt Trigger on Clock Input (Pin 7)
- Supply Voltage Range = 3.0 V to 18 V
- Chip Complexity: 546 FETs or 136.5 Equivalent Gates
- Pb-Free Packages are Available
Buy/Parametrics Table
搜寻
Close Search
产品:
4
分享
排序方式
产品系列:
┗
可订购器件:
4
产品
MC14490DWG
More Details
MC14490DWR2G
More Details
More Details
NLV14490DWR2G
More Details
Show More
1-25 of 25
Products per page
Jump to :
1
Support on the go
Find and compare products, get support and connect with onsemi sales team.
Contact Sales
