PIC18F26J11-I/SS - 64KB Flash 8-bit MCU 48MHz SSOP-28
MPN: PIC18F26J11-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.95 | $3.95 |
| 10 | $3.55 | $35.50 |
| 100 | $3.05 | $305.00 |
| 500 | $2.78 | $1,390.00 |
| 1,000 | $2.45 | $2,450.00 |
PIC18F26J11-I/SS Overview
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.
Drop-in alternatives for PIC18F26J11-I/SS — 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/SS (same form factor and footprint) — differing in Operating Temperature, Package, ADC, Program Memory (Flash), Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F26J13-I/SS
✅ Drop-In✓ In Stock
$3.95 / Unit
View Datasheet →PIC18F25J11-I/SS
✅ Drop-In✓ In Stock
$1.74 / Unit
View Datasheet →PIC18F26J50-I/SS
✅ Drop-In✓ In Stock
$1.96 / Unit
View Datasheet →PIC18F26K22-I/SS
✅ Drop-In✓ In Stock
$2.78 / Unit
View Datasheet →PIC18F26J11-I/SP
✅ Drop-In✓ In Stock
$3.32 / Unit
View Datasheet →PIC18F26J11-I/SS Maximum Ratings & Electrical Characteristics
| Product Family | PIC18 J-series (PIC18F2XJ11) |
| Core | 8-bit PIC RISC, 16-bit instructions |
| Program Memory (Flash) | 64 KB (32K × 16) |
| Data RAM | 4 KB |
| Data EEPROM | 0 bytes (none on this family) |
| Maximum CPU Frequency | 48 MHz |
| Operating Voltage (VDD) | 2.0 V to 3.6 V |
| I/O Pins | 25 |
| ADC | 10-bit, up to 10 channels |
| USB | USB 2.0 Full-Speed Device |
| Communication Interfaces | 2x UART, 2x I²C/SPI, 1x USB |
| Timers | 4x 16-bit Timer modules |
| Analog Comparators | 2 |
| CTMU (Capacitive Touch) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Operating Temperature | -40 °C to +85 °C (Industrial, 'I') |
| Package | SSOP-28, 5.30 mm body |
| Mounting Type | Surface Mount |
| MSL Level | 1 |
| RoHS Status | Compliant |
| Lead-Free Finish | Yes (NiPdAu) |
PIC18F26J11-I/SS Pin Configuration
| Pin 1 | RA0/AN0 — Digital I/O / Analog input 0 (PPS) |
| Pin 2 | RA1/AN1 — Digital I/O / Analog input 1 (PPS) |
| Pin 3 | RA2/AN2 — Digital I/O / Analog input 2 (PPS) |
| Pin 4 | RA3/AN3 — Digital I/O / Analog input 3 (PPS) |
| Pin 5 | RA4/AN4 — Digital I/O / Analog input 4 (PPS) |
| Pin 6 | RA5/AN5 — Digital I/O / Analog input 5 (PPS) |
| Pin 7 | RA6/OSC2 — Digital I/O / Crystal oscillator output |
| Pin 8 | RA7/OSC1 — Digital I/O / Crystal oscillator input |
| Pin 9 | VSS — Ground reference |
| Pin 10 | RB0/AN8 — Digital I/O / Analog input 8 (PPS, INT0) |
| Pin 11 | VDD — Positive supply (2.0-3.6 V) |
| Pin 12 | RB1/AN9 — Digital I/O / Analog input 9 (PPS, INT1) |
| Pin 13 | RB2 — Digital I/O (PPS, INT2) |
| Pin 14 | RB3 — Digital I/O (PPS) |
| Pin 15 | RB4 — Digital I/O (PPS, CTED1) |
| Pin 16 | RB5 — Digital I/O (PPS, CTED2) |
| Pin 17 | RB6/PGC — Digital I/O / ICSP clock (PPS) |
| Pin 18 | RB7/PGD — Digital I/O / ICSP data (PPS) |
| Pin 19 | VUSB/VBUS — USB 3.3 V regulator output / VBUS sense input |
| Pin 20 | RC0 — Digital I/O (PPS) |
| Pin 21 | RC1 — Digital I/O (PPS) |
| Pin 22 | RC2 — Digital I/O (PPS) |
| Pin 23 | RC3 — Digital I/O (PPS) |
| Pin 24 | RC4 — Digital I/O (PPS) |
| Pin 25 | RC5 — Digital I/O (PPS) |
| Pin 26 | RC6 — Digital I/O (PPS, TX) |
| Pin 27 | RC7 — Digital I/O (PPS, RX) |
| Pin 28 | VSS — Ground reference (return) |
Typical Applications
PIC18F26J11-I/SS is suitable for 6 applications: USB HID Peripheral (Keyboard / Mouse / Custom HID), Capacitive Touch Keypad / mTouch Front Panel, Battery-Powered Wireless Sensor Node, Industrial Control Front-End, USB CDC Virtual COM Port / DFU Bootloader Bridge, Consumer Appliance Display & User Interface Controller.
USB HID Peripheral (Keyboard / Mouse / Custom HID)
The PIC18F26J11-I/SS is a natural fit for USB HID peripherals thanks to its integrated USB 2.0 full-speed (12 Mbps) device controller with on-chip transceiver and 64 KB Flash for descriptor tables plus user code. With 5 V-tolerant GPIO and on-board 3.3 V regulator, it powers the USB bus directly from VDD without an external PHY, saving 4-6 mm² of PCB area versus discrete USB parts. Engineers routinely deploy it in low-cost keyboards, mice, game controllers, and custom HID interfaces where the Microchip MCHPFSUSB stack supplies ready-made HID class firmware. The 28-SSOP footprint fits inside sub-100 mm² enclosures common in consumer peripherals, while the industrial temperature grade suits OEM designs that must pass reliability stress testing.
Recommended
Capacitive Touch Keypad / mTouch Front Panel
The PIC18F26J11 integrates the Charge Time Measurement Unit (CTMU) and a 10-bit ADC, enabling robust capacitive-touch sensing on the SSOP-28 footprint. Designers can drive up to 12-16 touch electrodes through PPS-routed digital I/O, eliminating the cost of a dedicated touch controller. Active current of about 7 mA at 48 MHz supports continuous scan loops with sub-15 ms response time, while Deep Sleep mode below 10 nA lets battery-powered keypads sleep between touches. Industrial temperature grade supports appliances, white goods, and consumer front panels that need IEC 61000-4 EMC immunity, and the 64 KB Flash accommodates reference firmware and noise-robust scan algorithms supplied by Microchip application note AN1175.
Recommended
Battery-Powered Wireless Sensor Node
With nanoWatt XLP technology delivering typical Deep Sleep current around 7 nA and active current of 7 mA at 48 MHz, the PIC18F26J11-I/SS is well suited to wireless sensor nodes that sleep most of the time and wake briefly to transmit. The 25 GPIO channels let it interface to common sub-GHz radios (SX1276, CC1101) via SPI, while two UART/I²C blocks support wired sensor buses. The 28-SSOP footprint draws only 80 mm² of PCB area, leaving room for the radio and battery in compact enclosures. CR2032 coin cells can power duty-cycled nodes for several years at typical 0.1 % active time, and the -40 to +85 °C industrial rating covers outdoor and industrial IoT deployments.
Recommended
Industrial Control Front-End
The PIC18F26J11's 10-bit ADC with up to 10 analog channels, 2 analog comparators, 4 hardware timers, and dual UART/SPI/I²C ports cover most industrial front-end requirements on a single chip. PPS lets designers route PWM outputs, UART lines, and comparator feedback to any of the 25 GPIOs, simplifying PCB layout for industrial control boards that share pins with multiple subsystems. The 64 KB Flash supports full Modbus RTU or CANopen firmware stacks plus diagnostics, and the industrial -40 to +85 °C grade handles factory-floor temperature swings. The 28-SSOP footprint survives vibration in control cabinets better than leadless QFNs while remaining hand-solderable for low-volume retrofits.
Recommended
USB CDC Virtual COM Port / DFU Bootloader Bridge
The on-chip USB 2.0 device and 64 KB Flash make the PIC18F26J11 ideal for USB-to-UART bridges, virtual COM ports, and field-upgradeable DFU bootloaders. Microchip's USB CDC firmware class enumerates as a standard COM port on Windows, macOS, and Linux without driver installation, allowing the SSOP-28 part to replace discrete FTDI bridges. PPS lets the two UART peripherals share routing with the ICSP/PGD-PGC programming pins, so the same board can host both the application and the production programmer. With 4 KB RAM the bridge handles 921600 baud traffic comfortably, and the industrial temperature grade suits test equipment and lab instrumentation.
Recommended
Consumer Appliance Display & User Interface Controller
The PIC18F26J11-I/SS runs graphical user interface firmware for small appliances such as coffee makers, microwaves, and washing-machine front panels. Two SPI peripherals drive LED segment displays or character LCDs, while the 4 hardware timers handle buzzer PWM and triac-based load control. PPS allows designers to reassign display SPI lines away from analog pins when the touch-sensing and LED driver functions conflict, a common PCB-routing problem in dense front-panel designs. The -40 to +85 °C industrial range ensures reliable operation behind oven doors and near heating elements. The 28-SSOP package is hand-solderable, simplifying rework during appliance prototyping and field service.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F26J11-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F26J13-I/SS | PIC18F25J11-I/SS | PIC18F26J50-I/SS | PIC18F26K22-I/SS | PIC18F26J11-I/SP |
|---|---|---|---|---|---|---|
| Package | SSOP-28 (5.30 mm) | SSOP-28 (same) | SSOP-28 (same) | SSOP-28 (same) | SSOP-28 (same) | SPDIP-28 (through-hole) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash | 64 KB | 128 KB | 32 KB | 64 KB | 64 KB | 64 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 3.8 KB | 4 KB |
| Maximum CPU Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 64 MHz | 48 MHz |
| USB | USB 2.0 FS Device | USB 2.0 FS OTG | None | USB 2.0 FS OTG | None | USB 2.0 FS Device |
| ADC | 10-bit | 10-bit | 10-bit | 16-bit ADC2 | 10-bit (12-bit ADC option) | 10-bit |
| Operating Voltage | 2.0 - 3.6 V | 2.0 - 3.6 V | 2.0 - 3.6 V | 2.0 - 3.6 V | 1.8 - 5.5 V | 2.0 - 3.6 V |
| PPS (Peripheral Pin Select) | Yes | Yes | Yes | Yes | Yes | Yes |
| Industrial Temp Range | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
Key Differentiators
- Integrated USB 2.0 full-speed with on-chip transceiver (vs PIC18F26K22-I/SS)
- Lower active current at 48 MHz (vs PIC18F26K22-I/SS)
- 64 KB Flash capacity vs J-series base (vs PIC18F25J11-I/SS)
- Faster ADC throughput and PPS flexibility (vs PIC18F2680-I/SO)
Design Notes
Decouple VDD with a 100 nF X7R ceramic placed within 5 mm of pin 11 (and pin 27 on the second VDD), plus a bulk 1 µF ceramic or tantalum near the regulator. For USB-enabled designs add a 220 nF decoupling capacitor on the VUSB/VBUS pin (pin 19) to stabilize the internal 3.3 V regulator. Without proper decoupling the USB module fails enumeration and the ADC shows 2-3 LSB noise.
The PIC18F26J11-I/SS SSOP-28 has a thermal resistance theta-JA around 80 °C/W in still air, so at full 48 MHz activity (active current ~7 mA) the junction temperature rise is negligible (<1 °C). Even in Deep Sleep mode the die remains far below rated junction, eliminating any need for heatsinking in battery-powered applications. The industrial -40 to +85 °C rating is achievable without airflow.
Keep crystal traces (RA6/RA7 or dedicated RC0/RC1 in crystal mode) shorter than 8 mm and shield with a guard ground trace to prevent capacitive-touch noise pickup on adjacent GPIO. Place the SSOP-28 pads on 1.27 mm pitch with no thermal relief on the exposed ground if board power dissipation is significant. Reserve the ICSP/PGD-PGC footprint (RB6/RB7) on the PCB even if the production unit does not expose a programming connector.
Do not exceed 3.6 V on VDD - the J-series core is rated for 2.0-3.6 V. USB operation requires VBUS voltage present before configuration bits are checked; an unpowered USB host can leave the regulator in an indeterminate state. PPS register unlock sequence must be executed before remapping peripherals, or code will silently revert to default pins. The CTMU requires the timebase register calibration described in AN1175 to obtain reliable touch measurements.
The 5 V-tolerant GPIO inputs are sensitive to fast edges above 1 V/µs; place series 100 Ω resistors on signals entering the SSOP-28 from off-board connectors. For USB differential pair (D+/D-), route with 90 Ω differential impedance and keep total length below 50 mm to comply with USB 2.0 full-speed signal-integrity limits. Avoid running the 48 MHz crystal traces parallel to analog inputs.
Compliance Information
RoHS compliance from Microchip product page. Industrial temperature grade -40 to +85 °C. Not AEC-Q100 qualified; choose PIC18F46J11 or PIC18F26K22 automotive variants for AEC-Q100 designs.
