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CR1872 - Western Digital
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The Western Digital CR1872 is a family of single-chip 4-bit microcontrollers developed by Western Digital and introduce in late 1977.

Family Members
Part Description
CR1872 32x4-bit RAM, 512x10-bit ROM
CR2272 (WD40) 32x4-bit RAM, 512x10-bit ROM, LED driver, DIL-40
CR2872 32x4-bit RAM, DIL-64 (ROM-less/development chip)


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