深圳市中立信电子科技有限公司

HCF4518M013TR

计数器移位寄存器 IAFE DUAL BCD UP COUNTER

DESCRIPTION  HCF4518M013TR

HCF4518M013TR HCF4518B is a monolithic integrated circuit  fabricated in Metal Oxide Semiconductor  technology available in DIP and SOP packages.  HCF4518M013TR HCF4518B Dual BCD Up Counter consists of two  identical, internal 4 stage counters. The counter  stages are D-type Flip-Flops having  interchangeable Clock and Enable lines for  incrementing on either the positive-going or  negative going transitions. For single-unit  operations the Enable input is maintained High  and the counter advances on each positive going  transition of the Clock. The counters are cleared  by high levels on their Reset lines. The counter  can be cascaded in the ripple mode by connecting  Q4 to the enable input of the subsequent counter  while the clock input of the latter is held low.

■ MEDIUM SPEED OPERATION :

6MHz (Typ.) at 10V

■ POSITIVE -OR NEGATIVE- EDGE

TRIGGERING

■ SYNCHRONOUS INTERNAL CARRY

PROPAGATION

■ QUIESCENT CURRENT SPECIF. UP TO 20V

■ 5V, 10V AND 15V PARAMETRIC RATINGS

■ INPUT LEAKAGE CURRENT II = 100nA (MAX) AT VDD = 18V TA = 25°C

■ 100% TESTED FOR QUIESCENT CURRENT

■ MEETS ALL REQUIREMENTS OF JEDEC

JESD13B "STANDARD SPECIFICATIONS

FOR DESCRIPTION OF B SERIES CMOS

DEVICES"