HD404459 microcontroller equivalent, (hd4074458 / hd4074459) microcontroller.
* 8,192-word × 10-bit ROM (HD404458) 16,384-word × 10-bit ROM (HD404459 and HD4074459)
* 512-digit × 4-bit RAM (HD404458) 768-digit × 4-bit RAM (HD404459 and HD4.
The HD404459 Series is a member of the 4-bit HMCS400-series microcomputers with large-capacity memory and architecture providing high program productivity. Each microcomputer has a 32-kHz oscillator for clock, low-voltage (1.8 V) operating mode, and.
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