Features: • 80C51 Central Processing Unit• On-chip Flash Program Memory with In-System Programming (ISP) and In-Application Programming (IAP) capability• Boot ROM contains low level Flash programming routines for downloading via the UART• Can be programmed by the end-user a...
P89C51RB2HBA: Features: • 80C51 Central Processing Unit• On-chip Flash Program Memory with In-System Programming (ISP) and In-Application Programming (IAP) capability• Boot ROM contains low leve...
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PARAMETER | RATING | UNIT |
Operating temperature under bias | 0 to +70 or 40 to +85 | °C |
Storage temperature range | -65 to +15 | °C |
Voltage on EA/VPP pin to VSS | 0 to + 13.0 | V |
Voltage on any other pin to VSS | 0.5 to +6.5 | V |
Maximum IOL per I/O pin | 15 | mA |
Power dissipation (based on package heat transfer, not device power consumption) | 1.5 | A |
The 89C51RB2/RC2/RD2 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. 89C51RB2/RC2/RD2 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. 89C51RB2/RC2/RD2 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.
89C51RB2/RC2/RD2 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% compatible with the 80C51 instruction set.
The 89C51RB2/RC2/RD2 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/RD2 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.