MK74CB218R General Description
DUAL 1 TO 8 BUFFALO CLOCK
The MK74CB218 Buffalo? is a monolithic CMOS high speed clock driver. It consists of two identical single input to eight low-skew output, non-inverting clock drivers. This can eliminate concerns of part to part matching in many systems. The MK74CB218 is packaged in the tiny 28-pin SSOP, which uses the same board space as the narrow 16-pin SOIC. The inputs can be connected together for a 1 to 16 fanout buffer.
The MK74CB218 can also act as a voltage translator, since it is possible to run the inputs at 3.3 V and the outputs at 2.5 V.
A quad 1 to 4, and PECL versions, are also available. Consult IDT for more details.
Family of PartsThe MK74CB218 Buffalo? is designed to be used with IDT's clock synthesizer devices. The inputs of the Buffalo? are matched to the outputs of IDT clock synthesizers.
Not recommended for new designs. See the MK74CB218B for new designs.
Tiny 28-pin SSOP (150 mil) package Available in Pb (lead) free package Dual one input to eight output clock drivers Outputs are skew controlled to within 250 ps A outputs and B outputs matched to 250 ps 2.5 V or 3.3 V ±10% supply voltages Output Enable tri-states each bank of eight Clock speeds up to 200 MHzMK74CB218R Maximum Ratings
| No. of Inputs | 2 |
| Temperature | C |
| Input Type | LVCMOS |
| No. of Outputs | 16 |
| Output Type | LVCMOS |
| Voltage | 3.3 V |
| Package | QSOP 28 |
| Speed | NA |
| Max. Input Frequency | 200 MHz |
| Propagation Delay | 3 ns to 6 ns |
| Output to Output Skew | 250 ps |
| Core Supply Voltage (VDD) | 3.3 V |
| Output Supply Voltage (VDDO) | 3.3 V |
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