P89C51RB2; P89C51RC2; P89C51RD2 80C51 8-bit Flash Microcontroller Family 16KB/32KB/64KB ISP/IAP Flash With 512B/512B/1KB RAM

The P89C51RB2 P89C51RC2/P89C51RD2Hxx device contains a non-volatile 16KB/32KB/64KB Flash program memory that is both parallel programmable and serial In-System and In-Application Programmable. In-System Programming (ISP) allows the user to download new code while the Microcontroller sits in the application. In-Application Programming (IAP) means that the Microcontroller fetches new program code and reprograms itself while in the system. This allows for remote programming over a modem link. A default serial loader (boot loader) program in ROM allows serial In-System programming of the Flash memory via the UART without the need for a loader in the Flash code. For In-Application Programming, the user program erases and reprograms the Flash memory by use of standard routines contained in ROM. This device executes one machine cycle in 6 Clock cycles, hence providing twice the speed of a conventional 80C51. An OTP configuration bit lets the user select conventional 12 Clock Timing if desired. This device is a Single-Chip 8-Bit Microcontroller manufactured in advanced CMOS process and is a derivative of the 80C51 Microcontroller family. The instruction set is 100 pct compatible with the 80C51 instruction set. The device also has four 8-bit I/O ports, three 16-bit Timer event Counters a multi-source, four-priority-level, nested interrupt structure, an enhanced UART and on-chip Oscillator and Timing circuits. The added features of the P89C51RB2 RC2/RD2Hxx makes it a powerful Microcontroller for applications that require pulse width modulation, high-speed I/O and up/down counting capabilities such as Motor Control
By NXP Semiconductors
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P89C51RB2 Pinout, Pinouts
P89C51RB2 pinout,Pin out
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