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Calculator CPU ICs: HD38401 |
| Hitachi HD38401 Calculator IC |
| ID: | HD38401 (poss suffixed A) | Used in: | Sharp EL--2121 |
| Type: | Calculator IC, 12+1 digit, constant multiplication and division, Add mode in addition and subtraction, square, chain, power, %, reciprocal, add-on (discount), square root, mark-up, four function memory, switched floating/fixed modes, rounding modes. | Casio S-1 | |
| Maker: | Hitachi | ||
| Typical date range: | Mid 1980s | ||
| Package: | 36 pin DIL (aka USA DIP) 0.6" width black plastic | ||
| Date coding system: | {year}{month} {lot?} | ||
| Notes: | Designed for desktop financial calculators, Casio S-1 has more functions than the sharp |
 |
Pin-outs
and near example circuitry is shown for your information.
Pins Voltages are given for this example
respective to GND |
|
| Notes: Lacks input overflow suppression | ||