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-use...
P89C51RD2BN/01: 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 le...
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PARAMETER |
RATING |
UNIT |
Operating temperature under bias |
0 to +70 or 40 to +85 |
°C |
Storage temperature range |
65 to +150 |
°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 limitations, not device power consumption) |
1.5 |
W |
The P89C51RA2/RB2/RC2/RD2xx contains a non-volatile 8KB/16KB/32KB/64KB Flash program memory that is both parallel programmable and serial In-System and In-Application Programmable. In-System Programming (ISP)P89C51RA2/RB2/RC2/RD2xx 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. P89C51RA2/RB2/RC2/RD2xx 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.
The P89C51RA2/RB2/RC2/RD2xx supports 6-clock/12-clock mode selection by programming a Flash bit using parallel programming or In-System Programming. In addition, an SFR bit (X2) in the clock control register (CKCON) also selects between 6-clock/12-clock mode.
Additionally, when in 6-clock mode, peripherals may use either 6 clocks per machine cycle or 12 clocks per machine cycle. P89C51RA2/RB2/RC2/RD2xx is available individually for each peripheral and is selected by bits in the CKCON register.
This P89C51RA2/RB2/RC2/RD2xx is a Single-Chip 8-Bit Microcontroller manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. The instruction set is 100% compatible with the 80C51 instruction set.
The P89C51RA2/RB2/RC2/RD2xx 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 P89C51RA2/RB2/RC2/RD2xx make it a powerful microcontroller for applications that require pulse width modulation, high-speed I/O and up/down counting capabilities such as motor control.