P89C61X2

INTEGRATED CIRCUITS P89C60X2/61X2 80C51 8-bit Flash microcontroller family 64KB Flash 512B/1024B RAM Preliminary data 2002 Jul 18 Philips Semiconductors Philips Semiconductors 80C51 8-bit Flash microcontroller family 64KB Flash, 512B/1024B RAM Preliminary data P89C60X2/61X2 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. The P89C60X2 and P89C61X2 contain 512 bytes RAM and 1024 bytes RAM respectively, 32 I/O lines, three 16-bit counter/timers, a six-source, four-priority level nested interrupt structure, a serial I/O port for either multi-processor communications, I/O expansion or full duplex UART, and on-chip oscillator and clock circuits. In addition, the devices are static designs which offer a wide range of operating frequencies down to zero. Two software selectable modes of power reduction — idle mode and power-down mode — are available. The idle mode freezes the CPU while allowing the RAM, timers, serial port, and interrupt system to continue functioning. The power-down mode saves the RAM contents but freezes the oscillator, causing all other chip functions to be inoperative. Since the design is static, the clock can be stopped without loss of us...