Part # CD4047BC datasheet

Part Manufacturer: Fairchild Semiconductor

Fairchild Semiconductor

Part Description: CD4047BC Low Power Monostable Astable Multivibrator


Part Details:

CD404 October 1987 Revised March 2002 7BC Low Power CD4047BCLow Power Monostable/Astable Multivibrator General Description Monostable Multivibrator The CD4047B is capable of operating in either the Features Monost monostable or astable mode. It requires an external capac- s Positive- or negative-edge trigger itor (between pins 1 and 3) and an external resistor(between pins 2 and 3) to determine the output pulse width s Output pulse width independent of trigger pulse duration in the monostable mode, and the output frequency in the s Retriggerable option for pulse width expansion astable mode. s Long pulse widths possible using small RC components a by means of external counter provision ble/ Astable operation is enabled by a high level on the astableinput or low level on the astable input. The output fre- s Fast recovery time essentially independent of pulse quency (at 50% duty cycle) at Q and Q outputs is deter- width Ast mined by the timing components. A frequency twice that of s Pulse-width accuracy maintained at duty cycles Q is available at the Oscillator Output; a 50% duty cycle is a approaching 100% ble not guaranteed. Monostable operation is obtained when the device is trig- Astable Multivibrator Features Mult gered by LOW-to-HIGH transition at + trigger input orHIGH-to-LOW transition at - trigger input. The device can s Free-running or gatable operating modes be retriggered by applying a simultaneous LOW-to-HIGH s 50% duty cycle ivi transition to both the + trigger and retrigger inputs. s Oscillator output available b A high level on Reset input resets the outputs Q to LOW, Q s Good astable frequency stability rat to HIGH. typical= ±2% + 0.03%/°C @ 100 kHz o frequency= ±0.5% + 0.015%/°C @ 10 kHz r Features deviation (circuits trimmed to frequency VDD = 10V


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CD4047BC.pdf Datasheet