A 30-channel multiplexed sample/hold unit from Curtis ElectroMusic Specialities.

"With all hold capacitors on-chip and requiring no external components, the CEM 5530 makes inteface between microprocessor and voltage controlled devices expectionally simple and economical."
(from a preliminary data sheet)

Synthesizers using the chip:
with the amount used

KeyTek CTS-2000                 1
Sequential Circuits Prophet VS  1
Sequential Circuits Studio 440  1

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