AT89LV55 datasheet pdf

4-193 203Features • Compatible with MCS-51™ Products • 20K Bytes of Reprogrammable Flash Memory – Endurance: 1,000 Write/Erase Cycles • Fully Static Operation: 0 Hz to 12 MHz • Three-Level Program Memory Lock • 256 x 8-bit Internal RAM • 32 Programmable I/O Lines • Three 16-bit Timer/Counters • Eight Interrupt Sources • Low Power Idle and Power Down Modes • 2.7V to 6.0V Operating Range Description The AT89LV55 is a low-voltage, low-power CMOS 8-bit microcomputer with 20K bytes of Flash programmable and erasable read only memory. The device is manu- factured using Atmel’s high density nonvolatile memory technology and is compatible with the industry standard 80C51 instruction set and pinout. The on-chip Flash allows the program memory to be reprogrammed. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89LV55 is a powerful microcomputer which provides a highly flexible and cost effective solution to many embedded control appli- cations. 0811B-B–12/97 8-Bit Microcontroller with 20K Bytes Flash AT89LV55 Pin Configurations TQFP PDIP PLCC (continued)

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• 2.7V to 6.0V Operating Range