The MC10H209 is a Dual 4–5–input OR/NOR gate. This MECL part is a functional/pinout duplication of the MECL III part MC1688.

• Propagation Delay Average, 0.75 ns Typical
• Power Dissipation 125 mW Typical
• Improved Noise Margin 150 mV (Over Operating Voltage and Temperature Range)
• Voltage Compensated
• MECL 10K–Compatible