74LV109 Datasheet | Philips Semiconductors

FEATURES - Optimized for low voltage applications: 1.0 to 3.6 V - Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V - Typical VOLP (output ground bounce) < 0.8 V at VCC = 3.3 V, - Typical VOHV (output VOH undershoot) > 2 V at VCC = 3.3 V, - Output capability: standard - ICC category: flip-flops Tamb = 25°C Tamb = 25°C DESCRIPTION The 74LV109 is a low-voltage Si-gate CMOS device that is pin and function patible with 74HC/HCT109. The 74LV109 is a dual positive-edge triggered JK-type flip-flop featuring individual J, K inputs, clock (CP) inputs, set (SD) and reset (RD) inputs; also 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. The J and K inputs must be stable one set-up time prior to the LOW-to-HIGH clock transition for predictable operation. The JK design allows operation as a D-type flip-flop by tying the J and K inputs together. Schmitt-trigger action in the clock input makes the circuit highly tolerant to slower clock rise and fall times. QUICK REFERENCE DATA GND = 0 V; Tamb = 25°C; tr =tf ≤ 2.5 ns SYMBOL t PHL/t PLH fmax CI CPD PARAMETER Propagation delay n CP to n Q, n Q n SD to n Q, n Q n RD to n Q, n Q Maximum clock frequency Input capacitance Power dissipation capacitance per flip-flop VI = GND to VCC CONDITIONS TYPICAL 14 12 12 77 3.5 20 UNIT ns MHz p F p F CL = 15 p F; VCC = 3.3 V NOTE: 1. CPD is used to determine the dynamic power dissipation (PD in µW) PD = CPD × VCC2 × fi )Σ (CL × VCC2 × fo) where: fi = input frequency in MHz; CL = output load capacitance in p F; fo = output frequency in MHz; VCC = supply voltage in V; Σ (CL × VCC2 × fo) = sum of the outputs. ORDERING INFORMATION PACKAGES 16-Pin Plastic DIL 16-Pin Plastic SO 16-Pin Plastic SSOP Type II 16-Pin Plastic TSSOP Type I TEMPERATURE RANGE - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to...