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MOS TECHNOLOGY_parts(E): MCS2521 (CalcChip)
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Product number (P/N): MCS2521,
Keywords/Tags: MCS2521
Date of intro-: ~1973, TimeKeeper IC's (sorted by Year): (Link), Case: Type = Dual In Line (DIL) 28,
Classification: / Part / Calculator-Chip,
Featuring: Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Courtesy of: A PHOTO GALLERY OF ELECTRONIC COMPONENTS & PARTS,
Used in: COLUMBIA SCIENTIFIC: 2 (version-3), COMMODORE: MM3 Metric (version-2), COMMODORE_parts(E): 300148 (PCB), FABER-CASTELL: TR1, MELCOR: 380 (version-2), MELCOR: 380 (version-3), MELCOR: 500 (version-1), MELCOR_parts(E): 2262-26C (PCB), VENTRON: VT800M

Item

IC (Member)
7339 (A002 3973)
(sep-1973)
Host: COMMODORE: MM3 Metric (version-1)
S/N: 020086
(Courtesy of: A PHOTO GALLERY OF ELECTRONIC COMPONENTS & PARTS)

IC (Member)
7344 (A002 4473)
(oct-1973)
Host: NORMAN: 600 (version-2)
S/N: 012180

IC (Member)
7413 (A006 0174)
(mar-1974)
Host: COMMODORE: MM3 Metric (version-1)
S/N: 020086

IC (Member)
A00250733 (A0025073-3)
Host: COMMODORE: MM3M (version-3)
S/N: ?

Perspective
(Courtesy of: A PHOTO GALLERY OF ELECTRONIC COMPONENTS & PARTS)

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