DESCRIPTION

The Philips microcontrollers described in this data sheet are high-performance static 80C51 designs. They are manufactured in an advanced CMOS process and contain a non-volatile Flash program memory that is programmable in parallel (via a parallel programmer) or In-System Programmable (ISP) via boot loader. They support both 12-clock and 6-clock operation.

FEATURES

•80C51 Central Processing Unit

–64 kbytes Flash

–512 bytes RAM (P89C60X2)

–1024 bytes RAM (P89C61X2)

–Boolean processor

–Fully static operation

•In-System Programmable (ISP) Flash memory

•12-clock operation with selectable 6-clock operation (via software or via parallel programmer)

•Memory addressing capability

–Up to 64 kbytes ROM and 64 kbytes RAM

•Power control modes:

–Clock can be stopped and resumed

–Idle mode

–Power-down mode

•Two speed ranges

–0 to 20 MHz with 6-clock operation

–0 to 33 MHz with 12-clock operation

•LQFP, PLCC, and DIP packages

•Dual Data Pointers

•Three security bits

•Four interrupt priority levels

•Six interrupt sources

•Four 8-bit I/O ports

•Full-duplex enhanced UART

–Framing error detection

–Automatic address recognition

•Three 16-bit timers/counters T0, T1 (standard 80C51) and additional T2 (capture and compare)

•Programmable clock-out pin

•Watchdog timer

•Asynchronous port reset

•Low EMI (inhibit ALE, 6-clock mode)

•Wake-up from Power Down by an external interrupt