PIC18F26J11-I/SS
PIC18F26J11-I/SS - 64KB Flash 8-bit MCU 48MHz SSOP-28
The Microchip Technology PIC18F26J11-I/SS is a low-power, high-performance 8-bit PIC18 J-series microcontroller with 64 KB Flash program memory, 4 KB RAM, and a maximum CPU clock of 48 MHz, housed in a 28-pin SSOP (5.30 mm) package. According to DigiKey's verified listing, it integrates nanoWatt XLP extreme low-power technology, Peripheral Pin Select (PPS) for flexible remapping, and is rated for industrial temperature (-40 °C to +85 °C). The device belongs to Microchip's PIC18F2XJ11 sub-family and targets cost-sensitive embedded applications requiring USB-ready connectivity, capacitive-touch sensing, or low-power wireless sensor nodes.
A microcontroller (MCU) is a single-chip computer containing a CPU, non-volatile program memory (Flash), volatile data memory (RAM), and configurable peripherals such as timers, ADCs, communication interfaces, and GPIO. The PIC18 family uses an enhanced 8-bit RISC Harvard architecture with 16-bit instructions, positioning it between baseline PIC16 parts (12-bit instructions) and the 16-bit dsPIC33/PIC24 families. J-series parts specifically add Deep Sleep mode, nanoWatt XLP power management, and PPS to earlier PIC18 features, optimizing them for battery-powered and pin-constrained designs.
Key features of the PIC18F26J11-I/SS include 64 KB self-programmable Flash (32K × 16), 4 KB SRAM, 10-bit ADC with up to 10 channels, 2 analog comparators, 2 UART, 2 I²C, 2 SPI, one full-speed USB 2.0 device, 4 16-bit timers, and 25 mA sink/source capable I/O. PPS allows most digital peripherals to be assigned to a wide range of pins, easing PCB layout for densely-populated boards. The 28-SSOP footprint keeps board area below 80 mm², making the part attractive for handheld and IoT enclosures where every millimeter counts.
Architecturally, the PIC18F26J11 runs from an internal 31 kHz-8 MHz RC oscillator (software tunable) or an external crystal up to 48 MHz via its PLL, eliminating a costly external clock source for many designs. Its instruction set is C-friendly via Microchip's MPLAB XC8 compiler; the 8-level hardware stack and 31 interrupt sources simplify real-time firmware design. Compared with newer PIC18 K-series and Q-series parts, the J-series trades faster 16 MIPS ADC pipelines for lower active current (about 7 mA typical at 48 MHz) and deeper sleep modes (Deep Sleep current as low as 7 nA typical).
Typical applications include USB peripherals (HID, CDC, vendor-class), capacitive-touch keypads using the CTMU peripheral, low-power wireless sensor nodes with sleep duty-cycling, industrial control front-ends with on-board ADC and comparators, and consumer appliances where small package and low BOM are priorities. The 28-SSOP variant is also commonly chosen for prototype retrofit boards replacing older 28-pin PIC18F2X devices.
When designing with this part, allocate enough decoupling (100 nF + 1 µF near VDD) and reserve the VUSB pin for a 3.3 V regulator when USB is used. Confirm that the ICSP/PGD-PGC pin pair stays accessible for in-circuit debug, even if the final firmware will not expose them on the connector. For a drop-in replacement in a 28-pin design, look at the PIC18F26J13 (same footprint, more memory) or the PIC18F26K22 (K-series, faster ADC, slightly higher active current).
This page synthesizes distributor pricing, drop-in alternative MPNs, application guidance, and design considerations not present in the standalone Microchip datasheet, supporting faster component selection and BOM validation.
Cotización
Contacto