PIC18F26J11-I/ML - 8-Bit MCU 64KB Flash 48MHz QFN-28 | Microchip
MPN: PIC18F26J11-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.18 | $6.18 |
| 10 | $5.63 | $56.30 |
| 100 | $4.97 | $497.00 |
| 500 | $4.32 | $2,160.00 |
| 1,000 | $3.84 | $3,840.00 |
| 3,000 | $3.45 | $10,350.00 |
PIC18F26J11-I/ML Overview
A PIC18F microcontroller is a member of Microchip's 8-bit reduced-instruction-set computing family, which has shipped in billions of units for cost-sensitive embedded applications. The PIC18 line extends the earlier PIC16 family with a 16-bit instruction word, linear program memory up to 128 KB, and a richer peripheral set while keeping the deterministic interrupt latency and ease of development that define the PIC ecosystem. Within Microchip's taxonomy, the PIC18F26J11 sits between baseline PIC10/12/16 and the high-end PIC24/dsPIC33 family, occupying the sweet spot of small footprint, low power, and substantial code density.
Key differentiating features include Peripheral Pin Select (PPS), which lets the user remap digital peripherals onto a wide choice of general-purpose I/O pins, drastically simplifying board layout. nanoWatt XLP adds a deep-sleep mode that drops current consumption below typical RTC standby levels, so the device fits long-life battery applications such as wireless sensor nodes and remote controls. The 28-QFN (6x6) form factor exposes 25 digital I/O lines plus dedicated analog, timer, and communication resources including I2C, SPI, and a hardware UART.
Architecture-wise, the PIC18F26J11 uses a Harvard organization with separate program and data buses, a 31-level hardware stack, and instruction pipelining, delivering the architecture's typical single-cycle I/O access and deterministic 4-cycle interrupt response. Internal voltage regulation, brown-out reset, and a 10-bit analog-to-digital converter with up to 13 channels support most mixed-signal designs without external support components.
Typical applications include consumer electronics remote controls, USB HID peripherals, low-power wireless sensor nodes, small-format industrial human-machine interface panels, and battery-powered instrumentation. The combination of 64 KB Flash and ample RAM gives enough code headroom for USB stacks, RTOS kernels, or graphical LCD drivers.
When migrating older PIC18F designs onto a smaller board, the QFN-28 footprint typically requires careful thermal-via stitching under the exposed pad, and designers should confirm that the regulator supply rail meets the 2.0 V to 3.6 V core range; the "J" family operates from a single 2.0 V to 3.6 V supply while the legacy "K" family uses 1.8 V to 5.5 V. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that supplement the manufacturer datasheet.
Drop-in alternatives for PIC18F26J11-I/ML — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC18F26J11-I/ML (same form factor and footprint) — differing in Operating Temperature, Package, RoHS Status, I/O Pins, Supply Voltage (VDD).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F26J11T-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F26J50-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F26J13-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC18F26Q10-I/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F26K22-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC18F25J11-I/ML
✅ Drop-In✓ In Stock
$2.55 / Unit
View Datasheet →PIC18F26J11-I/ML Maximum Ratings & Electrical Characteristics
| Architecture | PIC18 (8-bit RISC, Harvard) |
| Series | PIC18 J-series, PIC XLP 18J |
| Maximum CPU Frequency | 48 MHz |
| Performance | 12 MIPS |
| Program Memory (Flash) | 64 KB (32K x 16) |
| RAM | 3.8 KB |
| Number of I/O Pins | 25 |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| Analog-to-Digital Converter | 10-bit, up to 13 channels |
| Communication Interfaces | I2C, SPI, UART (AUSART) with IrDA |
| Package | QFN-28 (6 x 6 mm) with exposed pad |
| Operating Temperature | -40 C to +100 C (Industrial) |
| Peripheral Pin Select (PPS) | Yes |
| Low-Power Technology | nanoWatt XLP with deep sleep mode |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC18F26J11-I/ML Pin Configuration
| Pin 1 | RE3/MCLR — Master Clear reset input or general-purpose I/O |
| Pin 2 | VDD — Positive supply voltage (2.0 V to 3.6 V) |
| Pin 3 | RA0/AN0/C1IN0-/CTE/ULPWU — Port A bit 0 / ADC ch 0 / Ultra-Low-Power Wake-up |
| Pin 4 | RA1/AN1/C2IN0- — Port A bit 1 / ADC ch 1 |
| Pin 5 | RA2/AN2/VREF-/CVREF — Port A bit 2 / ADC ch 2 / Voltage reference |
| Pin 6 | RA3/AN3/VREF+ — Port A bit 3 / ADC ch 3 / VREF+ |
| Pin 7 | RA4/AN4/C1INB/T0CKI — Port A bit 4 / ADC ch 4 / Timer0 clock input |
| Pin 8 | RA5/AN5/C2INB — Port A bit 5 / ADC ch 5 |
| Pin 9 | VSS — Ground |
| Pin 10 | RA7/OSC1/CLKI — Port A bit 7 / crystal oscillator input |
| Pin 11 | RA6/OSC2/CLKO — Port A bit 6 / crystal oscillator output |
| Pin 12 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator or clock input |
| Pin 13 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer1 oscillator / Capture Compare PWM |
| Pin 14 | RC2/CCP1 — Port C bit 2 / Capture Compare PWM 1 |
| Pin 15 | RC3/SCL1/SCK1 — Port C bit 3 / I2C SCL or SPI clock via PPS |
| Pin 16 | RC4/SDA1/SDI1 — Port C bit 4 / I2C SDA or SPI data in via PPS |
| Pin 17 | RC5/SDO1 — Port C bit 5 / SPI data out via PPS |
| Pin 18 | RC6/TX1/CK1 — Port C bit 6 / UART transmit via PPS |
| Pin 19 | RC7/RX1/DT1 — Port C bit 7 / UART receive via PPS |
| Pin 20 | VSS — Ground |
| Pin 21 | RB0/AN8/INT0/FLT0 — Port B bit 0 / ADC ch 8 / External interrupt |
| Pin 22 | RB1/AN9/INT1 — Port B bit 1 / ADC ch 9 / External interrupt 1 |
| Pin 23 | RB2/AN10/INT2/CT — Port B bit 2 / ADC ch 10 |
| Pin 24 | RB3/AN11/INT3 — Port B bit 3 / ADC ch 11 |
| Pin 25 | RB4/AN12/KBI0 — Port B bit 4 / ADC ch 12 |
| Pin 26 | RB5/AN13/KBI1 — Port B bit 5 / ADC ch 13 |
| Pin 27 | RB6/KBI2/PGC — Port B bit 6 / In-Circuit Serial Programming clock |
| Pin 28 | RB7/KBI3/PGD — Port B bit 7 / In-Circuit Serial Programming data |
Typical Applications
PIC18F26J11-I/ML is suitable for 6 applications: USB HID Peripherals and Game Controllers, Battery-Powered IoT Sensor Nodes, Industrial Human-Machine Interface Panels, Consumer Remote Controls, Data Logging and Instrumentation, White-Goods and Appliance Control Boards.
USB HID Peripherals and Game Controllers
The PIC18F26J11-I/ML fits USB HID input devices and small wired game controllers when paired with an MCP2210 USB bridge; the 48 MHz core delivers 12 MIPS to scan 8 to 16 switch matrixes while maintaining sub-1 ms latency. The 64 KB Flash budget covers a USB HID stack and a small HID-to-Game-Controller mapping table. nanoWatt XLP lets the device enter deep sleep between scans to keep idle power under 1 mA. PPS remaps the SPI/UART signals onto whichever Port B pins remain free after the USB bridge wires are routed.
Recommended
Battery-Powered IoT Sensor Nodes
LoRa/BLE relay nodes and remote environmental sensors benefit from the PIC18F26J11-I/ML's nanoWatt XLP technology. The 28-QFN (6x6) package operates to 100 C and survives outdoor enclosures; deep-sleep current below 700 nA enables multi-year battery life on a single CR2032 coin cell. The 10-bit ADC and 13 analog channels drive temperature, humidity, and battery-voltage telemetry, while the 64 KB Flash holds the latest calibrated libraries from the Microchip LoRa or ZigBee stack.
Recommended
Industrial Human-Machine Interface Panels
Small-format industrial HMI panels using 4-line LCD or 240x128 graphical displays are a natural target for the PIC18F26J11-I/ML. The PPS function allows the I2C LCD controller and the SPI touch-sense buttons to be remapped around the discrete LEDs and buzzer pads, simplifying trace routing in the small 60 mm x 60 mm panel footprint. Industrial -40 C to +100 C operation covers cabinet environments; 25 mA source/sink per I/O drives LED backlight drivers directly without buffers.
Recommended
Consumer Remote Controls
Universal and appliance remote controls use the PIC18F26J11-I/ML to drive IR LEDs across multiple protocols (RC5, NEC, SIRC, Panasonic) while scanning a 7 x 8 key matrix. The 48 MHz core achieves sub-microsecond pulse timing accuracy for IR carrier generation (typically 38 kHz), and deep-sleep wake on external interrupt preserves the coin-cell battery for years. The 3.8 KB RAM fits both learned and pre-programmed command libraries.
Recommended
Data Logging and Instrumentation
Portable data loggers measuring pressure, flow, or strain use the PIC18F26J11-I/ML to sample and timestamp measurements to a microSD card via SPI. The 48 MHz core keeps up with 1 kHz sampling rates and supports a small FAT16/FAT32 write-only firmware (about 8 KB); PPS routes the SPI signals and the SD-card detect logic onto available I/Os. The 10-bit ADC is sufficient for thermal-couple and load-cell sensing with calibrated lookup tables in Flash.
Recommended
White-Goods and Appliance Control Boards
Front-panel controller boards inside coffee makers, microwave ovens, and induction cooktops use the PIC18F26J11-I/ML to drive small TFT or character LCDs, read capacitive touch buttons, and switch mains-rated triacs through optocouplers. The -40 C to +100 C industrial grade handles the heat of an enclosed appliance, and PPS lets the designer relocate I2C and SPI signals after routing the high-voltage isolation channels. The 64 KB Flash supports multi-language menu trees.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F26J11-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F26J11T-I/ML | PIC18F26J50-I/ML | PIC18F26Q10-I/MV | PIC18F26K22-I/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | QFN-28 (6x6) | QFN-28 (6x6) - same | QFN-28 (6x6) - same | QFN-28 (4x4) - smaller, same pin function | QFN-28 (6x6) - same |
| Program Memory (Flash) | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| RAM | 3.8 KB | 3.8 KB | 3.8 KB | 4.5 KB (+18%) | 3.8 KB |
| Maximum CPU Frequency | 48 MHz | 48 MHz | 48 MHz | 64 MHz (+33%) | 64 MHz (+33%) |
| Supply Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Hardware USB | No | No | Yes (USB 2.0 FS) | No | No |
| Low-Power Technology | nanoWatt XLP | nanoWatt XLP | nanoWalt XLP | eXtreme Low Power | nanoWatt XLP |
Key Differentiators
- Lowerest cost entry point into PIC18 J-series with 64 KB Flash (vs PIC18F25J11-I/ML)
- Industrial (-40 C to +100 C) temperature grade at minimum cost (vs PIC18F26J11-E/ML)
- Native 28-QFN 6x6 mm - smaller PCB footprint than 28-SOIC alternatives (vs PIC18F26J11-I/SO)
Design Notes
The QFN-28 (6x6) package draws heat primarily through the exposed thermal pad on the bottom. Tie this pad to a copper area of at least 100 mm^2 with thermal vias to an internal plane. At 48 MHz with all peripherals active, total power dissipation is roughly 60 mW; without the thermal vias the junction-to-ambient thermal resistance rises and the part may derate in enclosed 60 C environments.
Decoupling the PIC18F26J11-I/ML requires a 100 nF X7R ceramic within 2 mm of each VDD pin and at least 1 uF bulk on the VDD rail. Place both capacitors as close as possible to keep the loop area below 25 mm^2. The PIC18 J-series is sensitive to brown-out conditions - configure the internal BOR module in configuration words so the part resets cleanly during 2.7 V to 3.0 V droops.
Use a four-layer PCB stack-up with the internal ground plane unbroken beneath the QFN-28 footprint. Keep high-speed analog traces (ADC inputs, VREF+, VREF-) routed away from digital switching signals like PWM outputs and the ICSP PGC pin. Microchip's ADC accuracy figure is achievable only with proper analog ground isolation; a split-plane approach with a single bridge under the VREF pin is recommended.
Estimated: Peripheral Pin Select mapping of I2C and SPI signals must be configured before PPSUnlock sequence - otherwise the device hard-faults on first clock. A common pitfall is to assign SCL1 and SDA1 to pins that already have open-drain pull-ups, which causes heavy loading during start-up. Initialize the PPS registers in your init() routine, then enable the peripheral module last. Failure to follow this order can read as a hung MCU and complicate debugging.
Compliance Information
RoHS compliance and lead-free status confirmed on Microchip's product page. Not AEC-Q100 qualified - the Automotive grade is the PIC18F26J11-E/ML variant, which adds extended qualification and +125 C operating range.
