Nuvoton's standard 8051 product series, whose pins are compatible with the traditional 12T 8051 microcontroller, and provide industrial temperature specifications, 22.1184 MHz built-in RC crystal (1% accuracy), built-in Data Flash, high anti-interference ability (8KV ESD/ 4KV EFT), support online system programming (ISP), provide LQFP48, PLCC44, PQFP44, TQFP44 and DIP40 multiple packaging options.

Application areas:

Access control system/alarm, bar code reading device, multiple computer switcher (KVM), digital phone, power management, communication equipment, industrial control computer and LCD TV, etc.

Key features:

• Core

-4T/6T/12T 8051 microprocessor

-Working frequency up to 40MHz

-Working voltage: 2.4V to 5.5V

-Working temperature: -40℃ ~ 85℃

• Memory

-App can be up to 128KB

-Embedded SRAM up to 2KB

-Configurable Data Flash

-Support online system programming ISP (In-System Programming)

• Analog-to-digital converter (ADC)

-Up to 8 channels

-10-bit resolution

-Up to 96 kSPS (sample rate per second)

• Communication interface (Connectivity)

-One set of SPI (up to 1.25 MHz)

-Two sets of I²C (up to 400 kHz)

-Two sets of UART

• Clock control

-External crystal 4 to 40 MHz

-Normal temperature, ±1% at 5V 22.1184 MHz internal RC crystal

-Internal RC crystal can be configured 22.1184 or 11.0592 MHz