PIC18F46K20-I/P

PIC18F46K20-I/P is Microchip’s 8‑bit PIC18 microcontroller in a 40‑pin DIP, designed for industrial temperature operation (-40°C to +85°C). The -I/P suffix denotes industrial-grade in a Plastic DIP package.
Key points:
- Core and memory: 8‑bit PIC core with relatively large program memory and RAM for mid‑range, cost‑effective applications.
- Peripherals: multiple timers, ADC (10‑bit, with multiple channels), CCP/PWM, USART/UART, SPI, I2C (MSSP), and a parallel slave port.
- I/O and options: many I/O pins, configurable analog/digital, voltage references, and various oscillator options (HS, XT, LP, or internal).
- Power: typically 2.0–5.5V operation, with low‑power modes and watchdog timer.
- Development: supported in MPLAB X IDE with XC8 compiler; programmed via ICSP.
Typical uses: embedded control, sensing and data logging, motor control, and other mid‑range microcontroller tasks.

There isn’t an exact pin‑compatible substitute for the PIC18F46K20-I/P. The closest cross‑references are other USB‑enabled PIC18F K‑series parts with similar memory, e.g., PIC18F46K22 (and related 46K2x variants). For precise pin/package substitutions, use Microchip’s Device Replacement Guide to find exact equivalents.

- Pin count: 40 pins (PDIP-40; -I/P indicates Industrial temperature, Plastic package).
- Function: 8‑bit Microcontroller from Microchip PIC18F46K20 family with on‑chip flash RAM, I/O ports, timers, ADCs, PWM, and multiple serial peripherals (USART/SPI/I2C) for embedded control applications.

- Manufacturer: Microchip Technology Inc.
- About the company: An American semiconductor company and global integrated device manufacturer (IDM) that designs and produces microcontrollers (including PICs), analog, memory, and related semiconductor products; publicly traded on Nasdaq (MCHP).

Application areas of PIC18F46K20-I/P include:
- USB-enabled devices and USB peripherals (HID, CDC, mass storage)
- Data logging and measurement instruments with multiple ADCs
- Embedded control for home appliances and consumer electronics
- Industrial automation and sensor/actuator interfaces
- Motor control and PWM-based drive applications
- USB-to-serial bridges and other USB interfaces
- Portable handheld and battery-powered devices
- Educational/hobbyist projects due to rich I/O and peripherals

Industrial temperature range, Plastic DIP package (40-pin PDIP).