SN74LS109 datasheets – compare manufacturers

Manufacturer Part Number Description
ON Semiconductor Logo onsemi SN74LS109 LOW POWER SCHOTTKY
ON Semiconductor Logo onsemi SN74LS109A Dual JK Positive Edge-Triggered Flip-Flop
Texas Instruments Logo Texas Instruments SN74LS109A Dual J-K Positive-Edge-Triggered Flip-Flops
Motorola Logo Motorola Semiconductor SN74LS109A DUAL JK POSITIVE EDGE-TRIGGERED FLIP-FLOP