View tc74hc109p datasheet:

TC74HC109P IL00 C-MOS J-K FLIP-FLOP WITH DIRECT SET/RESET —TOP VIEW— 1RD 1 VDD 16 5 11 SD SD 2 6 14 10 J Q J Q 1J 2 15 2RD 4 12 3 7 13 9 K Q K Q 1K 3 14 2J RD RD 1 15 1CK 4 13 2K 1SD 5 12 2CK INPUTS OUTPUTS SD RD CK J K Qn+1 Qn+1 1Q 6 11 2SD 0 1 x x x 1 0 1Q 10 2Q 7 1 0 x x x 0 1 0 0 x x x 1 * 1 * 8 GND 9 2Q 0 1 Qn Qn 0 0 0 1 1 1 NOTE: 1 1 1 0 TYPE VDD 1 0 Qn Qn TC74AC/TC74VHC +2 to +5.5 V 1 1 0 x x Qn Qn HCT/ACT +5 V OTHER TYPES +2 to +6 V 0 : LOW LEVEL 1 : HIGH LEVEL x : DON’T CARE * : NONSTABLE