74AC273

® 74AC273 OCTAL D-TYPE FLIP FLOP WITH CLEAR PRELIMINARY DATA s s s s s operation similar to equivalent Bipolar Schottky TTL. s Information signals applied to D inputs are transfered to the Q output on the positive going s edge of the clock pulse. When the CLEAR input is held low, the Q outputs s are held low independentely of the other inputs . All inputs and outputs are equipped with DESCRIPTION www.DataSheet4U.com protection circuits against static discharge, giving The AC273 is a high-speed CMOS OCTAL them 2KV ESD immunity and transient excess D-TYPE FLIP FLOP WITH CLEAR fabricated voltage. with sub-micron silicon gate and double-layer 2 metal wiring C MOS technology. It is ideal for low power applications mantaining high speed s HIGH SPEED: fMAX = 190 MHz (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 8 µA (MAX.) at TA = 25 oC HIGH NOISE IMMUNITY: VNIH = VNIL = 28% VCC (MIN.) 50Ω TRANSMISSION LINE DRIVING CAPABILITY SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24 mA (MIN) BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 273 IMPROVED LATCH-UP IMMUNITY B M (Plastic Package) (Micro Package) ORDER CODES : 74AC273B 74AC273M PIN CONNECTION AND IEC LOGIC SYMBOLS November 1998 1/10 74AC273 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 1 2, 5, 6, 9, 12, 15, 16, 19 3, 4, 7, 8, 13, 14, 17, 18 11 SYMBOL CLEAR Q0 to Q7 NAME AND FUNCT ION Asyncronous Master Reset (Active LOW) Flip...