Programmable TimerThe HCC4541B HCF4541B Programmable Timer is com-
posed 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 MAS-
TER 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).
The output is available in one of the two modes that
CAN be selected via the MODE input, pin 10 (see
truth table). The output turns out as a continuous
squarewave,with a frequency equal to theoscillator
frequency divided by 2N. By STMicroelectronics
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