74LS273

DM54LS273 DM74LS273 8-Bit Register with Clear April 1992 DM54LS273 DM74LS273 8-Bit Register with Clear General Description The ’LS273 is a high speed 8-bit register consisting of eight D-type flip-flops with a common Clock and an asynchronous active LOW Master Reset This device is supplied in a 20pin package featuring 0 3 inch row spacing Features Y Y Y Y Edge-triggered 8-bit high speed register Parallel in and out Common clock and master reset Connection Diagram Dual-In-Line Package TL F 9825 – 1 Order Number DM54LS273E DM54LS273J DM54LS273W DM74LS273M or DM74LS273N See NS Package Number E20A J20A M20B N20A or W20A Pin Names CP D0–D7 MR Q0–Q7 Description Clock Pulse Input (Active Rising Edge) Data Inputs Asynchronous Master Reset Input (Active LOW) Flip-Flop Outputs C1995 National Semiconductor Corporation TL F 9825 RRD-B30M115 Printed in U S A Absolute Maximum Ratings (Note) If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage 7V Input Voltage 7V Operating Free Air Temperature Range b 55 C to a 125 C DM54LS DM74LS 0 C to a 70 C b 65 C to a 150 C Storage Temperature Range Note The ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed The device should not be operated at these limits The parametric values defined in the ‘‘Electrical Characteristics’’ table are not guaranteed at the absolute maximum...