BUY D4516821AG5-A10-9NF https://www.utsource.net/itm/p/8977367.html

Description: The D4516821AG5-A10-9NF is a 4-bit CMOS microcontroller with an on-chip ROM and RAM. Features: 4-bit CMOS microcontroller On-chip ROM and RAM 16-bit timer 8-bit A/D converter Serial I/O port Interrupt controller Low power consumption Application: The D4516821AG5-A10-9NF is suitable for use in a variety of applications such as industrial control, home appliances, automotive, and consumer electronics. (For reference only)