- 制造厂商：TI
- 产品类别：时钟和计时
- 技术类目：时钟缓冲器
- 功能描述：具有三态输出的 1:8 TTL 时钟驱动器
- 点击这里打开及下载CDC339的技术文档资料
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The CDC339 is a high-performance, low-skew clock driver. It is specifically designed for applications requiring synchronized output signals at both the primary clock frequency and one-half the primary clock frequency. The four Y outputs switch in phase and at the same frequency as the clock (CLK) input. The four Q outputs switch at one-half the frequency of CLK.
When the output-enable (OE) input is low and the clear (CLR) input is high, the Y outputs follow CLK and the Q outputs toggle on low-to-high transitions of CLK. Taking CLR low asynchronously resets the Q outputs to the low level. When OE is high, the outputs are in the high-impedance state.
The CDC339 is characterized for operation from −40°C to 85°C.
- Low Output Skew, Low Pulse Skew for Clock-Distribution and Clock-Generation Applications
- TTL-Compatible Inputs and Outputs
- Distributes One Clock Input to Eight Outputs
- Four Same-Frequency Outputs
- Four Half-Frequency Outputs
- Distributed VCC and Ground Pins Reduce Switching Noise
- High-Drive Outputs (?48-mA IOH, 48-mA IOL)
- State-of-the-Art EPIC-ΙΙB? BiCMOS Design Significantly Reduces Power Dissipation
- Package Options Include Plastic Small-Outline (DW) and Shrink Small-Outline (DB) Packages
- Function
- Clock divider
- Output frequency (Max) (MHz)
- 80
- Number of outputs
- 8
- Output supply voltage (V)
- 5
- Core supply voltage (V)
- 5
- Output skew (ps)
- 0.75
- Features
- Pin programmable
- Operating temperature range (C)
- -40 to 85
- Rating
- Catalog
- Output type
- TTL
- Input type
- TTL
CDC339的完整型号有：CDC339DB、CDC339DW，以下是这些产品的关键参数及官网采购报价：
CDC339DB，工作温度：-40 to 85，封装：SSOP (DB)-20，包装数量MPQ：70个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网CDC339DB的批量USD价格：5.94（1000+）
CDC339DW，工作温度：-40 to 85，封装：SOIC (DW)-20，包装数量MPQ：25个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网CDC339DW的批量USD价格：5.94（1000+）
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