A master latch circuit (10) with signal level displacement for a flip-flop (1) clocked by a clock pulse signal (Clk), wherein the master latch circuit (10) comprises a signal delay circuit (13) which delays and inverts the clock pulse signal (ClK) resulting in a specific time delay (AT), and a circuit node (14) which, in a charging phase wherein the clock pulse signal (Clk) is logically low, is charged to an operational voltage (VB) an which, in an evaluation phase when the clock pulse signal (Clk) and delayed, inverted clock pulse signal (Clk DELAY ) are logically high, is discharged according to a specific data signal (D), wherein the data signal controls only transistors of a single type (either only N-channel or only P-channel). The master latch circuit (10) has only one supply voltage.