74HCT109 Description
74HCT109 is a dual positive edge triggered JK flip-flop featuring individual J and K inputs, clock (CP) inputs, set (SD) and reset (RD) inputs and plementary Q and Q outputs. The set and reset are asynchronous active LOW inputs and operate independently of the clock input. The J and K inputs control the state changes of the flip-flops as described in the mode select function table.
74HCT109 Key Features
- J and K inputs for easy D-type flip-flop
- Toggle flip-flop or "do nothing" mode
- Wide supply voltage range
- For 74HC109: from 2.0 V to 6.0 V
- For 74HCT109: from 4.5 V to 5.5 V
- CMOS low power dissipation
- High noise immunity
- Input levels
- For 74HC109: CMOS level
- For 74HCT109: TTL level