PIC18F2610-I/SO
PIC18F2610-I/SO - 8-bit MCU 64KB Flash 25 I/O | Microchip
The Microchip Technology PIC18F2610-I/SO is an 8-bit PIC® flash microcontroller (MCU) with 64 KB of program memory, 3,968 bytes of RAM, and 25 digital I/O pins, housed in a 28-pin SOIC wide-body package. It integrates a 10-bit multi-channel analog-to-digital converter (ADC), nanoWatt power management, and a peripheral set that includes enhanced CCP, USART, MSSP (SPI/I2C), and dual comparators. The CPU delivers up to 10 MIPS at 40 MHz and supports an internal oscillator from 31 kHz to 8 MHz.
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/Flash), data memory (RAM), and peripherals on one die. The PIC18 family belongs to the broader class of reduced instruction set computing (RISC) microcontrollers, sits within the 8-bit MCU segment, and falls under the wider umbrella of embedded microcontrollers and semiconductors. nanoWatt Technology adds aggressive power-saving modes (idle, sleep, and clock switching) so the part suits battery-powered designs running at 2.0 V to 5.5 V.
Key features include 64 KB flash program memory organized as 32K x 16 words, 3,968 bytes of RAM, 1,024 bytes of EEPROM, an internal 8 MHz oscillator with software-selectable calibration, and a fail-safe clock monitor that shuts the system down safely if the clock source fails. The 10-bit ADC provides up to 25 analog input channels with auto-acquisition, supporting single-ended and differential conversions for sensor signal chains. Programmable low-voltage detect (LVD) and a watchdog timer with its own RC oscillator reinforce system reliability.
The architecture uses a Harvard RISC core with a hardware 8x8 single-cycle multiplier, C-compiler-optimized instruction set, and dual oscillator pins for high-frequency crystal and 32.768 kHz time-base operation. The combination of internal oscillator, programmable LVD, and self-programming flash lets designers implement field-upgradeable firmware with no external components. The 25 I/O ports are 5 V tolerant and individually configurable for digital I/O or peripheral functions.
Typical applications include industrial sensor signal conditioning, building automation nodes, USB-to-UART bridges, motor-control user interfaces, white-goods control boards, low-power remote controls, and general-purpose embedded logic replacement. The ADC-rich pinout suits temperature, pressure, and humidity sensing, while the PWM/CCP channels drive brushed DC or stepper motor stages in white-goods and small appliances.
When designing with this part, place decoupling capacitors (0.1 µF and 10 µF) within 5 mm of VDD/VSS and reserve an MCLR pull-up. The internal oscillator eliminates one crystal, but designers who need accurate USB or RS-485 timing should still attach a high-frequency crystal to OSC1/OSC2. Be mindful that the 28-SOIC package dissipates roughly 800 mW at full CPU load, so lightly copper-poured ground fills are recommended.
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