DM74LS377 Datasheet | National Semiconductor

Description The ’LS377 is an 8-bit register built using advanced low power Schottky technology This register consists of eight D-type flip-flops with a buffered mon clock and a buffered mon input enable The device is packaged in the space-saving (0 3 inch row spacing) 20-pin package Features 8-bit high speed parallel registers Positive edge-triggered D-type flip-flops Fully buffered mon clock and enable inputs Connection Diagram Dual-In-Line Package TL F 9831 - 1 Order Number DM54LS377E DM54LS377J DM54LS377W DM74LS377WM or DM74LS377N See NS Package Number E20A J20A M20B N20A or W20A Pin Names E D0- D7 CP Q0- Q7 Description Enable Input (Active LOW) Data Inputs Clock Pulse Input (Active Rising Edge) Flip-Flop Outputs C1995 National Semiconductor Corporation TL F 9831 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 ratings The ‘‘Remended Operating Conditions’’ table will define the conditions for actual device operation Remended Operating Conditions Symbol VCC VIH VIL IOH IOL TA ts (H) ts (L) th (H) th (L) ts (H) ts (L) th (H) th (L) tw (H) tw (L) Parameter Min Supply Voltage High Level Input Voltage Low Level Input Voltage High Level Output Current Low Level Output Current Free Air Operating Temperature Setup Time HIGH or LOW Dn to CP Hold Time HIGH or LOW Dn to CP Setup Time HIGH or LOW E to CP Hold Time HIGH or LOW E to CP CP Pulse Width HIGH or...