DESCRIPTION

The HCC/HCF4541B Programmable Timer is composed of a 16-stage binary counter, an oscillator controlled by2 external resistorsand a capacitor, an output control logic and an automatic power-on reset circuit. The counter varies on positive-edge clock transation and it can be cleared by the MASTER RESET input. The output from this timer is the Q or Q output from the 8th, 13th, or 16th counter stage. The choice of the stage depends on the time select inputs A or B (see frequency selection table).

■ 16 STAGE BINARI COUNTER

■ LOW SYMMETRICAL OUTPUT RESISTANCE, TYPICALLY 100 OHM AT VDD = 15V

■ OSCILLATOR FREQUENCY RANGE : DC TO 100kHz

■ AUTO OR MASTER RESET DISABLES OSCILLATOR DURING RESET TO REDUCE POWER DISSIPATION

■ OPERATES WITH VERY SLOW CLOCK RISE AND FALL TIMES

■ BUILT-IN LOW-POWER RC OSCILLATOR

■ EXTERNAL CLOCK (applied to pin 3) CAN BE USED INSTEAD OF OSCILLATOR

■ OPERATES AS 2N FREQUENCY DIVIDER OR AS A SINGLE-TRANSITION TIMER

■ Q/Q SELECT PROVIDES OUTPUT LOGIC LEVEL FLEXIBILITY CAPABLE OF DRIVING SIX LOW POWER TTL LOADS, THREE LOW-POWER SCHOTTKY LOADS, PR SIX HTL LOADS OVER THE RATED TEMPERATURE RANGE

■ SYMMETRICAL OUTPUT CHARACTERISTICS

■ 100 TESTED FOR QUIESCENT CURRENT AT 20V

■ 5-10-15V PARAMETRIC RATINGS

■ MEETS ALL REQUIREMENTS OF JEDECTEN TATIVE STANDARD N 13A, ”STANDARD SPE CIFICATIONS FOR DESCRIPTION OF ’ B ’ SERIES CMOS DEVICES”

HCF4541M013TR属于集成电路（IC） > 可编程定时器和振荡器。意法半导体（ST）集团制造生产的HCF4541M013TR可编程定时器和振荡器可以设置用来以指定频率提供定时脉冲的器件。