具有三態(tài)輸出的 1:8 TTL 時鐘驅動器
| 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 |
- 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
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.
