BUY XE137B0 https://www.utsource.net/itm/p/1733409.html

The XE137B0 is a 28-pin DIP IC manufactured by Yamaha. It is a single-chip microcontroller with a built-in 8-bit CPU, ROM, RAM, and I/O ports. It is designed for use in embedded systems and is suitable for use in a wide range of applications, including home appliances, automotive, industrial, and medical equipment. The XE137B0 features a 8-bit CPU with a maximum operating frequency of 10MHz. It has 8K bytes of ROM and 128 bytes of RAM. It also has 8 I/O ports, a serial port, and an interrupt controller. The XE137B0 also has a built-in watchdog timer and power-on reset circuit. The XE137B0 is suitable for use in embedded systems that require low power consumption and high performance. It is also suitable for use in applications that require a low cost and low complexity microcontroller. Examples of applications include motor control, home appliances, automotive, industrial, and medical equipment. (For reference only)