The CD4047BE is a CMOS IC, and is part of a popular group of CMOS Logic IC's called the 4000 series integrated circuits.
They call this a "microvibrator" integrated circuit. We include this IC in the Mini-Me chorus. It serves as a key component of the oscillator in that circuit.
|CD4047BE CMOS IC |
Download Datasheet PDF
(actual brand may vary)