1:2 LVCMOS clock buffer for 200 MHz clock trees
The Renesas 74FCT38072SDCGI is a single-circuit, 1:2 fanout clock buffer designed to distribute LVCMOS clock signals with minimal skew. It accepts one LVCMOS input and delivers two LVCMOS outputs, operating from a wide supply range of 1.71V to 3.465V, which covers 1.8V, 2.5V, and 3.3V logic rails in one BOM line. The buffer handles clock frequencies up to 200 MHz, making it suitable for mid-speed clock distribution in industrial control, motor drives, outdoor telecom, and factory automation equipment where the -40°C to 105°C industrial temperature range is required.
200 MHz and 1.71V–3.465V supply — what they mean for the clock tree
The 200 MHz maximum frequency sets the upper bound for the input clock rate; for a 100 MHz system clock this gives 2× margin, keeping output rise times clean and jitter low. The 1.71V to 3.465V supply range means the same part can be used across a multi-rail design without a separate buffer variant for each voltage — a single 74FCT38072SDCGI on the BOM covers 1.8V FPGA banks, 2.5V memory interfaces, and 3.3V peripheral logic. The 1:2 ratio is a common fanout for splitting a master clock to two loads (e.g., a processor and an FPGA), and the non-differential LVCMOS I/O avoids the termination resistor count of a differential pair.
Industrial temperature grade and 8-SOIC footprint
Rated for -40°C to 105°C ambient, this buffer is qualified for environments where the board sees elevated temperatures — motor drive cabinets, outdoor base stations, and engine-bay-adjacent electronics. The 8-SOIC package (3.90 mm body width) is a standard footprint that routes easily on two-layer boards and is compatible with common reflow profiles. The surface-mount package keeps assembly straightforward for both prototype and production runs.
Lifecycle and sourcing reality
No last-time-buy or obsolescence notice applies, so it remains a safe choice for new designs and ongoing production builds.