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Description

General part information

CDC339 Series

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. TakingCLRlow asynchronously resets the Q outputs to the low level. WhenOEis high, the outputs are in the high-impedance state.

The CDC339 is characterized for operation from −40°C to 85°C.

Technical Specifications

Parameters and characteristics for this part

SpecificationCDC339DWG4
Differential InputNo
Differential OutputNo
Frequency - Max80 MHz
InputTTL
Input Ratio1
Mounting TypeSurface Mount
Number of Circuits1
Operating Temperature (Max)85 °C
Operating Temperature (Min)-40 °C
OutputTTL
Output Ratio8
Package Length0.295 in
Package Name20-SOIC
Package Width7.5 mm
TypeFanout Buffer (Distribution)
Voltage - Supply (Maximum)5.25 V
Voltage - Supply (Minimum)4.75 V

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