Microchip PIC18F252-E/SO 8-Bit Microcontroller Data Sheet and Technical Specifications

The Microchip PIC18F252-E/SO is a high-performance, enhanced Flash microcontroller from the widely adopted PIC18 family. It integrates a robust set of peripherals into a compact 28-pin Small Outline (SOIC) package, making it a versatile solution for a broad range of embedded control applications in automotive, industrial, consumer, and medical markets. This device combines the efficiency of an 8-bit architecture with advanced connectivity options, offering an excellent balance of performance, power consumption, and cost.

At the core of the PIC18F252 lies an enhanced Harvard architecture CPU capable of operating at speeds up to 40 MHz, delivering a performance of 10 MIPS. A key feature is its 16-bit wide instruction set with a 32-level deep hardware stack, which enhances interrupt handling and subroutine management. The microcontroller is equipped with 32 KB of self-programmable Flash memory for application code, 1.5 KB of SRAM for data handling, and 256 bytes of EEPROM for storing critical non-volatile data, providing ample resources for complex firmware.

The peripheral set is designed for sophisticated connectivity and control. It includes multiple communication interfaces: a Master Synchronous Serial Port (MSSP) that can be configured for either SPI or I²C modes, and an Enhanced Addressable USART (EUSART) for robust RS-232, RS-485, and LIN bus communication. For timing and control, it features three timers/counters, including a 10-bit resolution PWM module for precise motor control and power conversion. A highly capable 10-channel, 10-bit Analog-to-Digital Converter (ADC) allows for extensive analog sensor interfacing.

The PIC18F252-E/SO is engineered for low-power operation, featuring multiple power-managed modes, including Idle, Sleep, and Peripheral Module Disable, which drastically reduce current consumption in battery-sensitive applications. Its operating voltage ranges from 2.0V to 5.5V, and it is characterized for an industrial temperature range of -40°C to +85°C, ensuring reliability in harsh environments. The device also incorporates numerous system reliability features like a Programmable Brown-Out Reset (BOR) and a High-Priority Interrupt Vector for critical event response.

ICGOODFIND Summary: The PIC18F252-E/SO stands out as a powerful and highly integrated 8-bit microcontroller. Its blend of substantial memory, a rich set of peripherals (including advanced communication interfaces and a high-resolution ADC), industrial-grade robustness, and low-power capabilities makes it an exceptionally flexible and reliable choice for designers tackling complex embedded system challenges.

Keywords: 8-Bit Microcontroller, Enhanced Flash Memory, MSSP (SPI/I²C), 10-Bit ADC, Low-Power Operation.