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HCF4510B Folha de dados(PDF) 1 Page - STMicroelectronics |
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HCF4510B Folha de dados(HTML) 1 Page - STMicroelectronics |
1 / 11 page 1/11 September 2002 s MEDIUM SPEED OPERATION : 8 MHz (Typ.) at 10V s SYNCHRONOUS INTERNAL CARRY PROPAGATION s RESET AND PRESET CAPABILITY s STANDARDIZED SYMMETRICAL OUTPUT CHARACTERISTICS s QUIESCENT CURRENT SPECIF. UP TO 20V s 5V, 10V AND 15V PARAMETRIC RATINGS s INPUT LEAKAGE CURRENT II = 100nA (MAX) AT VDD = 18V TA = 25°C s 100% TESTED FOR QUIESCENT CURRENT s MEETS ALL REQUIREMENTS OF JEDEC JESD13B "STANDARD SPECIFICATIONS FOR DESCRIPTION OF B SERIES CMOS DEVICES" DESCRIPTION HCF4510B is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor technology available in DIP package. It is a PRESETTABLE BCD UP/DOWN COUNTER consists of four synchronously clocked D-type flip-flops (with a gating structure to provide T-type flip-flop capability) connected as a counter. This counter 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. This device will count out of non-BCD counter states in a maximum of two clock pulses in the up mode 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 accomplished 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. HCF4510B can be cascaded in the ripple mode by connecting all clock inputs in parallel and 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. HCF4510B PRESETTABLE BCD UP/DOWN COUNTER PIN CONNECTION ORDER CODES PACKAGE TUBE T & R DIP HCF4510BEY DIP |
Nº de peça semelhante - HCF4510B_02 |
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Descrição semelhante - HCF4510B_02 |
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