Early
Electronic
Calculator
Miscellaneous Integrated Circuits

Manufacturer Part Number Function Example Date Example Use
 P2112A256*4 RAM Hewlett-Packard 9815A
HP1818-26xx2KB mask ROM Hewlett-Packard 9815A
HitachiHD32336 drivers Ricomac 1216
HitachiHD3253serial data to 7-seg decoder3EFacit 1114J, Sharp ELSI 804
HitachiHD3256serial data to 8-seg decoder Ricomac 1216
HitachiHD32817-segment decoder Olympia CD401A
ITTB6178(LED driver)?Digimatic P8 (Model No. 41031)
ITTB6179(LED driver)?Digimatic P8 (Model No. 41031)
ITTB62495(?) common-cathode LED digit drivers?Digimatic D8 (Model No. 41024)
ITTB63704(?) common-cathode LED segment drivers?Digimatic D8 (Model No. 41024)
ITT279154 common-cathode LED segment drivers7338Texas Instruments SR-11
ITT (?)279146 common-cathode LED digit drivers (same as SN75494)7504Texas Instruments TI-2550
MOSTEKMK60025N 1818-0129 7614Hewlett-Packard 21
MitsubishiM582126 inverters Royal Digital V
Motorola68008-bit microprocessor Hewlett-Packard 9815A
Motorola6821PIA Hewlett-Packard 9815A
National Semi.DS/DM8864 523Novus 6010 "International Computer", Novus 850, Philips P-63 Statistical
Rockwell?50210-495 hi-voltage segment drivers7316Victor 19-1421
Texas InstrumentsSN754914 common-cathode LED segment drivers7214Commodore C110
Texas InstrumentsSN754926 common-cathode LED digit drivers7212Commodore C110
Texas InstrumentsSN754934 common-cathode LED segment drivers7444Texas Instruments TI-2550
Texas InstrumentsSN754946 common-cathode LED digit drivers7410Texas Instruments SR-11
Texas InstrumentsTMS3314MOS shift register7048Canon Canola EP151
Texas InstrumentsTMS4134MOS character generator ROM7103Canon Canola EP151
ToshibaT1191Keyboard numeral encoder Casio 121-B
ToshibaT13478 common-cathode LED digit drivers5Dapf Mark 40, Unitrex Mini Handy 80M
ToshibaT30844 VF drivers Toshiba BC-0802
ToshibaT3086 B2-phase clock generator Olympia CD401A
ToshibaT40974 NIXIE Digit Drivers Casio 121-B
ToshibaTD20072-phase clock generator3FSharp ELSI 804
ToshibaTM43126 drivers Olympia CD401A
ToshibaTM43526 VF drivers?Facit 1114J, Miida MC840, Olympia CD401A, Ricomac 1216
ToshibaTM43569 VF drivers3ESharp ELSI 804
(33 items)



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