Описание
The P89V52X2 is an 80C51 microcontroller with 8 kB flash, 256 B of data RAM, and 192 B of data EEPROM. This device is designed to be a drop in and software compatible replacement for the P87C52, P87C52X2, P89C52, and P89C52X2 devices.
- 0 MHz to 40 MHz operating frequency in 12× mode, 20 MHz in 6× mode
- 8 kB of on-chip flash user code memory
- 256 B of RAM
- Enhanced UART
- Three 16-bit timers/counters
- Four 8-bit I/O ports
- Supports 12-clock (default) or 6-clock mode selection via software or In-Circuit Programming (ICP)
- DIP40, PLCC44, and LQFP44 packages
- Six interrupt sources with four priority levels
- Second DPTR register
- Very low power
- Low EMI mode (ALE inhibit)
- Power-down mode with external interrupt wake-up
- Idle mode
- Extended temperature range
- Three security bits
- Programmable clock-out pin
