DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
| Close-up view
of the MK6010L single-chip calculator circuit used with the Busicom LE-120S
manufactured in March 1972. PMOS Technology, 40-pin Ceramic DIP 1-bit serial Register Processor, Hard-wired Instructions, 2*48 Bits + 12 Bit Data SAM. Chip manufactured February 1972.   |
Package of the
MK6010L with its lid removed, exposing the wire bonding.
Package Pin 1 in upper-left quadrant. Image resolution: 4,800 DPI (190 pixel/mm). |
Die of the
MK6010L. Bond pad 1 in upper-left quadrant. Image resolution: 19,200 DPI (760 pixel/mm. Photo courtesy of Sean Riddle |
| Close-up view
of the MK5012 single-chip calculator circuit used with the Caltronic 912
manufactured in December 1972. PMOS Technology, 40-pin Ceramic DIP 1-bit serial Register Processor, Hard-wired Instructions, 2*48 Bits + 12 Bit Data SAM. Chip manufactured November 1972.   |
Package of the
MK5012 with its lid removed, exposing the wire bonding.
Package Pin 1 in upper-left quadrant. Image resolution: 4,800 DPI (190 pixel/mm). |
Die of the
MK5012. Bond pad 1 in upper-left quadrant. Image resolution: 19,200 DPI (760 pixel/mm. Photo courtesy of Sean Riddle |
| Close-up view
of the MK5012 single-chip calculator circuit sold in 1974 by Radio Shack
under their Archer house brand as Type 5012, PN #276-1752. PMOS Technology, 40-pin Ceramic DIP 1-bit serial Register Processor, Hard-wired Instructions, 2*48 Bits + 12 Bit Data SAM. Chip (7321KJX) manufactured May 1973.   |
If you have additions to the above article please email: joerg@datamath.org.
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