PIC18F26Q43-I/SP
PIC18F26Q43-I/SP - 8-bit 64MHz 64KB Flash MCU 28-SPDIP | Microchip
The Microchip Technology PIC18F26Q43-I/SP is an 8-bit PIC microcontroller in the PIC18-Q43 family, built around an enhanced mid-range RISC core and offered in a 28-pin SPDIP (0.300") through-hole package. The device integrates 64 KB of Flash program memory, 4 KB of SRAM, and 1 KB of EEPROM, and operates at up to 64 MHz across a 1.8 V to 5.5 V supply range, making it directly compatible with both 3.3 V and 5 V rails. According to the Microchip PIC18F26/46/56Q43 datasheet (Document 40002171E), the part is rated for the industrial temperature range of -40 °C to +85 °C.
An 8-bit microcontroller (MCU) is a small, low-power processor on a single chip that combines a CPU, non-volatile program memory (Flash), volatile data memory (SRAM), and a set of on-chip peripherals such as timers, communication interfaces, and analog blocks. PIC microcontrollers use a modified Harvard architecture with separate program and data buses, and the PIC18 family extends the baseline 8-bit instruction set with hardware multiply, indexed addressing, and a C-friendly design. Within the Microchip portfolio, the PIC18 sits between the PIC16 baseline family and the 16-bit dsPIC/PIC24 family, targeting real-time control, sensor processing, and general-purpose embedded designs.
Key features of the PIC18F26Q43 include a 12-bit Analog-to-Digital Converter with Computation (ADCC) that automates capacitive voltage-divider (CVD) touch sensing, averaging, filtering, oversampling, and threshold comparison. A new 16-bit Pulse-Width Modulation (PWM) peripheral, multiple Core Independent Peripherals (CIPs), and configurable logic cells let sophisticated hardware behaviour be implemented without CPU intervention. The device also integrates a 5-bit DAC, comparators, configurable communications (UART/SPI/I2C), and a windowed watchdog timer for functional-safety-capable designs.
Typical applications for the PIC18F26Q43-I/SP include capacitive touch user interfaces, LED lighting control, sensor hub nodes, motor and fan control, low-cost IoT edge nodes, and industrial automation controllers. Its 64 KB Flash, 4 KB SRAM, and rich peripheral set allow designers to consolidate what would otherwise require an external ADC plus logic into a single 28-pin through-hole part, simplifying layout and BOM.
When designing with this MCU, reserve a 100 nF decoupling capacitor close to each VDD pin, configure the MCLR pin correctly for in-circuit serial programming (ICSP), and review the ADCC sequencing if capacitive touch performance is critical. The 28-SPDIP footprint also makes it an easy hand-solderable option for prototypes, education, and field-service replacements.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers an at-a-glance comparison against same-package PIC18 K-series and Q-series options.
見積もり
お問い合わせ