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74FCT38075S Datasheet(PDF) 2 Page - Integrated Device Technology |
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74FCT38075S Datasheet(HTML) 2 Page - Integrated Device Technology |
2 / 11 page LOW SKEW 1 TO 5 CLOCK BUFFER 2 REVISION A 03/18/15 74FCT38075S DATASHEET Pin Assignments Pin Descriptions External Components A minimum number of external components are required for proper operation. A decoupling capacitor of 0.01µF should be connected between VDD on pin 2 and GND on pin 4, as close to the device as possible. A 33 series terminating resistor may be used on each clock output if the trace is longer than 1 inch. To achieve the low output skew that the 74FCT38075S is capable of, careful attention must be paid to board layout. Essentially, all five outputs must have identical terminations, identical loads and identical trace geometries. If they do not, the output skew will be degraded. For example, using a 30 series termination on one output (with 33 on the others) will cause at least 15 ps of skew. Pin Number Pin Name Pin Type Pin Description 1 Q4 Output Clock Output 4. 2 VDD Power Connect to +1.8V, +2.5 V, or +3.3 V. 3 ICLK Input Clock input. 4 GND Power Connect to ground. 5 Q0 Output Clock output 0. 6 Q1 Output Clock output 1. 7 Q2 Output Clock Output 2. 8 Q3 Output Clock Output 3. 1 2 3 ICLK 4 Q0 Q1 Q3 Q4 Q2 VDD 8 7 6 5 GND 8-pin SOIC 1 2 3 ICLK 4 Q0 Q1 Q3 Q4 Q2 VDD 8 7 6 5 GND 8-pin DFN |
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