The D78F series chips are 8-bit single-chip computers produced by NEC Electronics (now Renesas Electronics) that require the use of specialized programmers for programming. Commonly used programmers are Renesas E1, E2, E2 Lite and other models, which can support the programming of D78F series chips. In addition, there are some programmers produced by third-party manufacturers can also support the programming of D78F series chips, you can choose the right programmer according to your needs. It should be noted that different models of D78F chips may require the use of different programmers, so be sure to check whether it supports the chip model you are using when choosing a programmer.