HD74HC175

HD74HC175 Quad. D-typ Flip-Flops (with Clear) Description Information at the D inputs of the HD74HC175 is transferred to the Q and Q outputs on the positive going edge of the clock pulse. Both true and compliment outputs from each flip-flop are externally available. All four flip flops are controlled by a common clock and a common clear. Clearing is accomplished by a negative pulse at the clear input. All four Q outputs are cleared to a logic low level and all four Q outputs to a logic high level. Features High Speed Operation: tpd (Clock to Q) = 14 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Function Table Inputs Clear L H H H L Clock X D X H L H Outputs Q L H L no change Q H L H HD74HC175 Pin Arrangement Clear 1 1Q 2 1Q 3 1D 4 2D 5 2Q 6 2Q 7 GND 8 (Top view) D CK Q CLR Q D Q CK CLR Q Q CLR CK Q D CLR Q CK Q D 16 VCC 15 4Q 14 4Q 13 4D 12 3D 11 3Q 10 3Q 9 Clock Logic Diagram 1D D CK Clock 2D CK CL D CK CK CL 3D D CK CK CL 4D D CK CK CL Clear 4Q Q 3Q 4Q Q 2Q Q 1Q 2Q Q 1Q 3Q 2 HD74HC175 DC Characteristics Ta = 25°C Item Input voltage Symbol VIH Ta = –40 to +85°C Max — — — 0.5 1.35 1.8 — — — — — 0.1 0.1 0.1 0.33 0.33 ±1.0 40 µA µA I OL = 4 mA I OL = 5.2 mA Vin = VCC or GND Vin = VCC or GND, Iout = 0 µA V I OH = –4 mA I OH = –5.2 mA Vin = VIH or VIL I OL = 20 µA V Vin = VIH or VIL I OH = –20 µA V Unit V Test...