Manufacturer: Fairchild Semiconductor  •  Series: 74LS  •  Function: Set(Preset) and Reset  •  Type: JK Type  •  Output Type: Differential  •  Number of Elements: 2 - Dual  •  Number of Bits per Element: 1  •  Frequency - Clock: 25MHz  •  Delay Time - Propagation: 25ns  •  Trigger Type: Positive Edge  •  Current - Output High, Low: 400µA, 8mA  •  Voltage - Supply: 4.75 V ~ 5.25 V  •  Operating Temperature: 0°C ~ 70°C  •  Mounting Type: Through Hole  •  Package / Case: 16-DIP (300 mil)  •  Other PartNo: 74LS109, 74LS109AN, 74LS109N, DM74LS109N