SN74LS393

SN74LS393 Dual 4−Stage Binary Counter The SN74LS393 contains a pair of high-speed 4-stage ripple counters. Each half of the LS393 operates as a Modulo-16 binary divider, with the last three stages triggered in a ripple fashion. In the LS393, the flip-flops are triggered by a HIGH-to-LOW transition of their CP inputs. Each half of each circuit type has a Master Reset input which responds to a HIGH signal by forcing all four outputs to the LOW state. Dual Versions Individual Asynchronous Clear for Each Counter Typical Max Count Frequency of 50 MHz Input Clamp Diodes Minimize High Speed Termination Effects GUARANTEED OPERATING RANGES Symbol Parameter Min Typ Max Unit VCC Supply Voltage TA Operating Ambient Temperature Range 4.75 5.0 5.25 V 0 25 70 °C IOH Output Current − High IOL Output Current − Low − 0.4 8.0 mA mA http://onsemi.com LOW POWER SCHOTTKY 14 1 PLASTIC N SUFFIX CASE 646 14 1 SOIC D SUFFIX CASE 751A © Semiconductor Components Industries,...