HD404638RF microcomputer equivalent, 4-bit single-chip microcomputer.
* 8,192-word × 10-bit ROM (HD404638R, HD40A4638R) * 16,384-word × 10-bit ROM (HD404639R, HD40A4639R, HD407A4639R) * 1,152-digit × 4-bit RAM * 61 I/O pins .
Image gallery
TAGS
Download