PIC18F55K42-I/PT
PIC18F55K42-I/PT - 8-Bit 64MHz 32KB Flash MCU 48-TQFP-EP | Microchip
The Microchip Technology PIC18F55K42-I/PT is a 48-pin PIC18 XLP 8-bit microcontroller built on a RISC architecture with a 64 MHz CPU speed (16 MIPS), integrating 32 KB Flash, 2 KB SRAM, 256 B EEPROM, and a 12-bit ADC with computation (ADC2) in a 48-pin TQFP-EP (7x7 mm) package. As part of the PIC18FxxK42 family, the device combines core independent peripherals (CIPs), intelligent analog, and XLP extreme low-power technology in a single chip, targeting both battery-powered and line-powered embedded designs.
A PIC microcontroller (Programmable Interface Controller, or MCU) is a compact, low-cost, low-power embedded computer built around a Harvard-architecture RISC core with on-chip Flash, RAM, EEPROM, and a peripheral set (timers, ADC, communications). It belongs to the microcontroller > embedded MCU > semiconductor hierarchy and serves as the central processing unit of countless consumer, industrial, automotive, and IoT systems. PIC18F devices are Microchip's mid-range 8-bit family with 16-bit instructions and rich interrupt handling, bridging the gap between PIC16 baseline parts and PIC24/dsPIC 16-bit devices.
Key features of the PIC18F55K42 include 49 digital I/O pins, multiple serial interfaces (UART, SPI, I2C), 12-bit ADC2 with up to 43 analog channels, multiple 8/16-bit timers, DMA controller, vectored interrupt controller, and an on-chip 64 MHz internal oscillator. The XLP technology delivers nanoWatt sleep currents suitable for battery applications, while core independent peripherals (CLC, NCO, PWM, SMT, CCP) can operate without CPU intervention.
Typical applications include industrial sensor nodes, low-power IoT edge devices, home appliance control boards, automotive body and lighting modules, USB/HID peripherals, and consumer electronics requiring 5 CAN communication over multiple serial protocols. The wide 2.5 V to 5.5 V supply range and small TQFP-EP footprint simplify layout in space-constrained multi-layer PCBs.
When designing with the PIC18F55K42-I/PT, allocate adequate ground copper under the exposed pad (EP) to dissipate package thermal power and to provide a low-impedance ground return. Use Microchip's MPLAB X IDE and XC8 compiler for code development; the device is supported by all major PIC programmers/debuggers including ICD 4, PICkit 4, and MPLAB SNAP.
This page synthesizes verified distributor pricing, drop-in same-package alternatives (PIC18F46K42, PIC18F56K42, PIC18F57K42 from the same family), and practical design notes not found in the manufacturer datasheet alone.
見積もり
お問い合わせ