SH66P20A microcontroller equivalent, otp 4-bit microcontroller.
SH6610C-based single-chip 4-bit microcontroller ROM: 1K X 16 bits RAM: 64 X 4 bits (Data memory) Operation voltage: 2.4V - 6.0V (Typical 3.0V or 5.0V) 12 CMOS bi-directio.
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