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Product Description
The P89V51RD2 is an 80C51 microcontroller with 64 kB Flash and 1024 bytes of data RAM. A key feature of the P89V51RD2 is its X2 mode option.
The design engineer can choose to run the application with the conventional 80C51 clock rate (12 clocks per machine cycle) or select the X2 mode (6 clocks per machine cycle) to achieve twice the throughput at the same clock frequency.
Features:
1. 5 V Operating voltage from 0 to 40 MHz 2. 64 kB of on-chip Flash program memory with ISP (In-System Programming) and 3. IAP (In-Application Programming) 4. Supports 12-clock (default) or 6-clock mode selection via software or ISP 5. SPI (Serial Peripheral Interface) and enhanced UART 6. PCA (Programmable Counter Array) with PWM and Capture/Compare functions 7. Four 8-bit I/O ports with three high-current Port 1 pins (16 mA each) 8. Three 16-bit timers/counters 9. Programmable Watchdog timer (WDT) 10. Eight interrupt sources with four priority levels 11. Second DPTR register 12. Low EMI mode (ALE inhibit) 13. TTL- and CMOS-compatible logic levelsProduct Tags
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