AT89C2051-24PU Datasheet

Microcontrollers - MCU


The AT89C2051-24PU is a low-voltage, high-performance CMOS 8-bit microcomputer with 2K bytes of Flash programmable and erasable read-only memory (PEROM). The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C2051-24PU is a powerful microcomputer which provides a highly-flexible and cost-effective solution to many embedded control applications. AT89C2051-24PU Features • Compatible with MCS®-51Products• 2K Bytes of Reprogrammable Flash Memory – Endurance: 10,000 Write/Erase Cycles• 2.7V to 6V Operating Range• Fully Static Operation: 0 Hz to 24 MHz• Two-level Program Memory Lock• 128 x 8-bit Internal RAM• 15 Programmable I/O Lines• Two 16-bit Timer/Counters• Six Interrupt Sources• Programmable Serial UART Channel• Direct LED Drive Outputs• On-chip Analog Comparator• Low-power Idle and Power-down Modes• Green (Pb/Halide-free) Packaging Option


[{"Name":"Data Bus Width","Value":"8 bit "},{"Name":"Maximum Clock Frequency","Value":"24 MHz "},{"Name":"Program Memory Size","Value":"2 KB "},{"Name":"Data RAM Size","Value":"128 B "},{"Name":"On-Chip ADC","Value":"No "},{"Name":"Operating Supply Voltage","Value":"2.7 V to 6 V "},{"Name":"Maximum Operating Temperature","Value":"+ 85 C "},{"Name":"Package / Case","Value":"PDIP "},{"Name":"Mounting Style","Value":"Through Hole "},{"Name":"Interface Type","Value":"UART "}]

Manufacturer information


Fairchild has a rich history as a pioneer in the semiconductor industry and that pioneering spirit endures today. In an era where diversity can dilute focus and hamper innovation, we specialize in the development and manufacturing of a complete portfolio of low- to high-power solutions for the mobile, industrial, cloud, automotive, lighting, and computing industries. Fairchild is one of the most reliable partners in the industry, offering the shortest time from concept to silicon, expert FAEs for customer support, and a flexible, multi-source supply chain. Our vision is clear – anticipate the power efficiencies demanded by tomorrow’s electronic products and deliver an amazing design experience

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