PI6C41204LE

The key differences between the PI6C412 and PI6C4120 clock buffers mentioned in the PDF are as follows: 1. The PI6C41204 is a 4 output version with 2 selectable inputs, pin compatible with ICS8535-01, while the PI6C41202 is similar to the PI6C41204 except it has two outputs. 2. The PI6C41204A is the enhanced version with extra power and ground pins to minimize noise and jitter. 3. The PI6C41204 has up to four LVPECL outputs, whereas the PI6C41202 has two outputs. 4. The PI6C41204 has a 20-pin package type, while the PI6C41202 has a 14-pin package type. 5. The PI6C41204 has a 266 MHz output frequency, 30ps max output skew, 150ps max part-to-part skew, and 1.9ns max propagation delay. Therefore, the key differences between the PI6C412 and PI6C4120 clock buffers are the number of outputs, package type, and additional features such as power and ground pins for noise reduction.

The maximum output frequency of the PI6C412 clock buffer is 266 MHz.

The PI6C41204 clock buffer has four LVPECL outputs.