Microchip AT89C5115-SISUM 8-Bit Microcontroller Datasheet and Technical Specifications

The Microchip AT89C5115-SISUM is a high-performance, low-power 8-bit microcontroller engineered for a broad spectrum of embedded control applications. Based on an advanced 80C51 core, it delivers a powerful and efficient processing foundation while maintaining compatibility with the industry-standard MCS-51 instruction set. This device integrates a rich set of peripherals and memory resources into a compact package, making it an ideal solution for applications in consumer electronics, industrial automation, and smart sensors.

A key feature of the AT89C5115 is its enhanced processing speed. The core executes instructions at a rate six times faster than the standard 80C51, achieving up to 10 MIPS with a 60 MHz clock. This performance boost allows for more complex tasks and faster response times without necessitating a move to a 16- or 32-bit architecture, thereby optimizing system cost and power consumption.

The memory configuration is a significant strength of this microcontroller. It is equipped with 16 KB of In-System Programmable (ISP) Flash memory for non-volatile code storage. This Flash memory can be reprogrammed up to 1,000 cycles, facilitating easy firmware updates and rapid prototyping. Additionally, it features 512 bytes of RAM for data handling and a 1 KB EEPROM for storing critical parameters that must be retained after power cycles and updated during operation.

The peripheral set of the AT89C5115 is comprehensive and designed for connectivity and control. It includes:

A versatile 10-bit Analog-to-Digital Converter (ADC) with 8 input channels, enabling precise measurement of analog signals.

Two 16-bit timers/counters and an additional 16-bit timer with up and down counting capabilities.

Enhanced UART for serial communication and an I²C-bus interface for connecting to a wide array of sensors and ICs.

A Programmable Counter Array (PCA) with capture/compare and PWM modules, offering flexible timing and waveform generation.

33 I/O lines that provide ample connectivity for switches, displays, and other digital peripherals.

Operating from a 2.7V to 5.5V supply voltage, the AT89C5115 excels in low-power scenarios. It supports multiple power-saving modes—Idle and Power-down—which drastically reduce power consumption during periods of inactivity, making it exceptionally well-suited for battery-powered and energy-sensitive products.

The device is available in a PLCC-44 package (as denoted by the -SISUM suffix), which is robust and suitable for commercial and industrial temperature ranges.

ICGOOODFIND: The Microchip AT89C5115-SISUM stands out as a highly integrated and efficient 8-bit microcontroller. Its blend of high-speed processing, substantial and flexible memory (ISP Flash + EEPROM), a rich set of integrated peripherals (ADC, PCA, I²C), and excellent low-power characteristics makes it a powerful and versatile choice for developers seeking a reliable and cost-effective solution for a multitude of embedded designs.

Keywords: 8-Bit Microcontroller, In-System Programmable (ISP), 80C51 Core, Low-Power Modes, Analog-to-Digital Converter (ADC)