The CU20045SCPB-T31A is a VFD Module with 5x7 dot matrix character format, parallel and serial interface type and 20 x 4 resolution. The high speed 8 bit parallel interface is 5V CMOS compatible suitable for connection to a host CPU bus. The asynchronous serial interface accepts baud rates up to 19200 with or without parity. Two character font tables can be hardware or software selected.