HCF4510B Datasheet | STMicroelectronics

® HCF4510B HCF4516B PRESETTABLE UP/DOWN COUNTERS MEDIUM SPEED OPERATION f CL = 8MHz TYP. AT 10V s SYNCHRONOUS INTERNAL CARRY PROPAGATION s RESET AND PRESET CAPABILITY s QUIESCENT CURRENT SPECIFIED TO 15V s 5V, 10V, AND 15V PARAMETRIC RATINGS s INPUT CURRENT OF 100n AAT 15V AND 25 °C s 100% TESTED FOR QUIESCENT CURRENT MEETS ALL REQUIREMENTS OF JEDEC TENTATIVE STANDARD No. 13A, ”STANDARD SPECIFICATIONS FOR DESCRIPTION OF ”B” SERIES CMOS DEVICES” s ORDER CODES PACKAGE DIP SOP TUBE HCF45XXBEY HCF45XXBM1 T& R HCF45XXM013TR DESCRIPTION The HCF4510B and HCF4516B are monolithic integrated circuits available in 16-lead dual in-line plastic and plastic micro package. The HCF4510B Presettable BCD Up/Down Counter and the HCF4516B Presettable Binary Up/Down Counter consist of four synchronously clocked D-type flip-flops (with a gating structure to provide T-type flip-flop capability) connected as counters. These counters can be cleared by a high level on the RESET line, and can be preset to any binary number present on the jam inputs by a high level on the PRESET ENABLE line. The HCF4510B will count out of non-BCD counter states in a maximum of two clock pulses in the up mode, PIN CONNECTION and a maximum of four clock pulses in the down mode. If the CARRY-IN input is held low, the counter advances up or down on each positive-going clock transition. Synchronous cascading is acplished by connecting all clock inputs in parallel and connecting the CARRY-OUT of a less significant stage to the CARRY-IN of a more significant stage. The HCF4510B and HCF4516B can be loaded in the ripple mode by connecting the CARRY-OUT to the clock of the next stage. If the UP/DOWN input changes during a terminal count, the CARRY-OUT must be gated with the clock, and the UP/DOWN input must change while the clock is high. This method provides a clean clock signal to the subsequent counting stage. March 2000 1/12 HCF4510B/4515B FUNCTIONAL DIAGRAM TRUTH TABLE CL X CI 1 0 0 X X X=...