P89C51X2 datasheet(3/48 Pages) PHILIPS

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Philips Semiconductors

Preliminary data

P89C51X2/52X2/54X2/58X2

80C51 8-bit Flash microcontroller family

4K/8K/16K/32K Flash

2002 Jun 06

FEATURES

• 80C51 Central Processing Unit

– 4 Kbytes Flash (P89C51X2)

– 8 Kbytes Flash (P89C52X2)

– 16 Kbytes Flash (P89C54X2)

– 32 Kbytes Flash (P89C58X2)

– 128 byte RAM (P89C51X2)

– 256 byte RAM (P89C52/54X2/58X2)

– Boolean processor

– Fully static operation

• 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 or DIP package

• Extended temperature ranges

• 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

• Asynchronous port reset

• Low EMI (inhibit ALE, slew rate controlled outputs, and 6-clock

mode)

• Wake-up from Power Down by an external interrupt

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