TC7WH74x D-Type Flip Flops Toshiba TC7WH74x D-Type Flip Flops are available with preset and clear options. TC7WH74x provides high-speed fMAX of 170MHz at VCC of 5V. These flip flops have low power dissipation and high noise immunity. TC7WH74x operates at wide voltage range (VCC) of 2V to 5.5V.