PIC18F26J50T-I/SO - 8-bit USB MCU 64KB Flash 28-SOIC | Microchip
Teilenummer: PIC18F26J50T-I/SO ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $6.5 | $6,50 |
| 10 | $5.85 | $58,50 |
| 100 | $5.2 | $520,00 |
| 500 | $4.6 | $2.300,00 |
| 1.000 | $4.1 | $4.100,00 |
PIC18F26J50T-I/SO Übersicht
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and programmable peripherals. PIC18J-series MCUs use an enhanced Harvard RISC architecture with 16-bit instructions optimized for C code density, which is a common architecture in embedded control products. Within the broader taxonomy, this part is an 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC, with USB and XLP positioning it for connected, battery-powered endpoints.
Key features include the integrated Full-Speed USB 2.0 device transceiver, two USART, two MSSP (SPI/I2C), 10-bit ADC, multiple PWM outputs, and 25 digital I/O. Deep Sleep mode with RTCC draws nanoamp-level current, making the part attractive for always-on, USB-bus-powered applications. Hardware 32-bit CRC and a 31 kHz secondary oscillator improve data integrity and real-time-clock accuracy.
Typical applications include USB Human Interface Devices (HIDs), CDC serial-to-USB bridges, USB sensor and data-acquisition nodes, battery-powered instruments using XLP sleep modes, and industrial control front-ends with on-board USB diagnostics. The 28-SOIC footprint simplifies hand-soldering and rework, and the J-series peripheral set maps cleanly to legacy PIC18 designs.
When designing with this MCU, ensure the 3.3V regulator output is decoupled with 1 µF–10 µF ceramics near VUSB3V3, route D+/D– as a 90 Ω differential pair, and respect the 5.5V absolute maximum on non-USB-tolerant pins.
This page combines the manufacturer datasheet with distributor pricing and a verified cross-reference of pin-compatible drop-in alternatives, giving procurement and design engineers a single reference for sourcing and second-source decisions not found on any individual vendor page.
Drop-in-Alternativen für PIC18F26J50T-I/SO – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC18F26J50T-I/SO (gleiche Bauform und Footprint) – abweichend in Operating Temperature, Package, Program Memory, ADC, Timers.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC18F26J50-I/SO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC18F25J50-I/SO
✅ Drop-In✓ Auf Lager
$2.78 / Stück
Datenblatt ansehen →PIC18F26J11T-I/SO
✅ Drop-In✓ Auf Lager
$3.18 / Stück
Datenblatt ansehen →PIC18F25K80T-I/SO
✅ Drop-In✓ Auf Lager
$2.78 / Stück
Datenblatt ansehen →PIC18F2685-I/SO
✅ Drop-In✓ Auf Lager
$6.9 / Stück
Datenblatt ansehen →PIC18F26J50T-I/SO Grenzwerte & elektrische Eigenschaften
| Core Architecture | PIC18 (8-bit Harvard RISC) |
| Series | PIC® XLP™ 18J |
| Program Memory | 64 KB Flash (32K x 16) |
| RAM | 4 KB |
| Maximum CPU Speed | 48 MHz (12 MIPS) |
| USB Interface | USB 2.0 Full-Speed Device, integrated transceiver |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| On-chip 3.3 V Regulator | Yes (powers USB transceiver) |
| Digital I/O Pins | 25 |
| ADC | 10-bit, up to 13 channels |
| Communication | 2x USART, 2x MSSP (SPI/I2C) |
| Timers/PWM | Multiple 8/16-bit timers, PWM outputs |
| Low-Power Modes | nanoWatt XLP, Deep Sleep with RTCC |
| Betriebstemperatur | -40C to +85C (Industrial, "I") |
| Gehäuse | 28-pin SOIC (0.295 in / 7.50 mm width) |
| Montageart | Surface Mount |
| RoHS-Status | Compliant (per Microchip product page) |
PIC18F26J50T-I/SO Pin-Konfiguration
| Pin 1 | RA0/AN0 — Digital I/O / Analog input 0 / CVREF |
| Pin 2 | RA1/AN1 — Digital I/O / Analog input 1 |
| Pin 3 | RA2/AN2 — Digital I/O / Analog input 2 |
| Pin 4 | RA3/AN3 — Digital I/O / Analog input 3 / VREF+ |
| Pin 5 | RA4 — Digital I/O / Timer0 clock input |
| Pin 6 | RA5/AN4 — Digital I/O / Analog input 4 |
| Pin 7 | RA6/OSC2 — Digital I/O / Crystal oscillator output |
| Pin 8 | RA7/OSC1 — Digital I/O / Crystal oscillator input |
| Pin 9 | RB0/AN12 — Digital I/O / Analog input 12 / INT0 |
| Pin 10 | RB1/AN10 — Digital I/O / Analog input 10 |
| Pin 11 | RB2/AN8 — Digital I/O / Analog input 8 |
| Pin 12 | RB3/AN9 — Digital I/O / Analog input 9 |
| Pin 13 | RB4 — Digital I/O / KBI interrupt |
| Pin 14 | RB5/KBI1 — Digital I/O / KBI interrupt |
| Pin 15 | RB6/PGC — Digital I/O / ICSP clock |
| Pin 16 | RB7/PGD — Digital I/O / ICSP data |
| Pin 17 | VUSB3V3 — Internal 3.3 V USB regulator output (bypass cap) |
| Pin 18 | VDD — Core supply voltage 2.0 V - 3.6 V |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VCAP — Internal voltage regulator bypass (1 µF-10 µF cap) |
| Pin 21 | RC0 — Digital I/O |
| Pin 22 | RC1 — Digital I/O |
| Pin 23 | D- — USB Full-Speed D- line |
| Pin 24 | D+ — USB Full-Speed D+ line |
| Pin 25 | RC2 — Digital I/O |
| Pin 26 | RC3 — Digital I/O |
| Pin 27 | RC4 — Digital I/O |
| Pin 28 | RC5 — Digital I/O |
Typische Anwendungen
PIC18F26J50T-I/SO ist geeignet für 6 Anwendungs: USB HID Peripheral (Keyboard / Mouse / Custom HID), USB-to-Serial CDC Bridge, USB Data-Acquisition / Sensor Node, Battery-Powered Field Instrument, Industrial Control Front-End with USB Diagnostics, USB Audio Class (UAC1) Device.
USB HID Peripheral (Keyboard / Mouse / Custom HID)
The PIC18F26J50T-I/SO is purpose-built for USB Human Interface Devices thanks to its integrated Full-Speed USB 2.0 device transceiver with on-chip 3.3 V regulator - no external PHY or LDO required. With 64 KB Flash and 4 KB RAM it comfortably fits Microchip's USB HID stack plus custom report descriptors and debounce logic. The 48 MHz / 12 MIPS core sustains 1 ms polling at full USB bandwidth without CPU strain. Deep Sleep with RTCC makes battery-powered wireless mice viable. Designers should add ESD protection on D+/D- and follow USB-IF impedance guidance (90 Ω differential).
Empfohlen
USB-to-Serial CDC Bridge
Use the PIC18F26J50T-I/SO as a CDC virtual COM port bridge, eliminating legacy UART cables and drivers. The integrated USB transceiver and on-chip 3.3 V regulator minimize external components, while 4 KB of RAM buffers CDC line-codes and interrupt packets at 12 Mbps Full Speed. The two on-chip USARTs can fan out to RS-232/RS-485 transceivers for industrial serial ports. nanoWatt XLP Deep Sleep mode enables bus-powered designs that respect USB suspend current limits of 2.5 mA.
Empfohlen
USB Data-Acquisition / Sensor Node
Pair the PIC18F26J50T-I/SO with sensors and stream data over USB to a host PC. The 10-bit ADC (up to 13 channels) and 25 I/O pins handle multiple analog/digital sensors, while the integrated USB device provides a wired power and data link. The 64 KB Flash fits USB CDC plus firmware with calibration tables, and 4 KB RAM buffers sample bursts. Industrial temperature range (-40C to +85C) suits factory-floor and lab-instrument deployments.
Empfohlen
Battery-Powered Field Instrument
Take advantage of nanoWatt XLP extreme-low-power modes to build battery-powered instruments that wake periodically to log and sync via USB. Deep Sleep with RTCC draws nanoamp-level current between samples, and the integrated 3.3 V regulator is gated by VBUS so the part can run directly off a single Li-ion cell when USB is disconnected. The 28-SOIC package simplifies hand-soldering during prototyping of low-volume field instrumentation.
Empfohlen
Industrial Control Front-End with USB Diagnostics
Embed the PIC18F26J50T-I/SO as a 28-SOIC front-end MCU on an industrial controller, exposing a USB diagnostics port for field service. The integrated USB transceiver provides a robust maintenance interface, while 2x USART and 2x MSSP talk to upstream sensors, motor drivers, and actuators. Industrial -40C to +85C operation tolerates cabinet environments, and 64 KB Flash holds a USB stack plus application firmware. Pair with an isolated USB barrier for ESD/EMC hardening.
Empfohlen
USB Audio Class (UAC1) Device
Implement a USB Audio Class 1 device such as a USB headset adapter or USB microphone dongle using the PIC18F26J50T-I/SO. The Full-Speed USB bandwidth supports mono/stereo PCM at 48 kHz, and 4 KB RAM buffers small audio frames without dropouts. The on-chip 3.3 V regulator simplifies bus-powered designs where the audio CODEC sits on the regulated rail. Designers should budget CPU cycles carefully - USB isochronous endpoints consume ~20% of the 12 MIPS budget at 48 kHz.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC18F26J50T-I/SO – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC18F26J50-I/SO | PIC18F25J50-I/SO | PIC18F26J11T-I/SO | PIC18F25K80T-I/SO | PIC18F2685-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (7.50 mm) | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Flash Memory | 64 KB | 64 KB | 32 KB | 64 KB | 64 KB | 96 KB |
| RAM | 4 KB | 4 KB | 3 KB | 4 KB | 3.6 KB | 3.3 KB |
| USB 2.0 Peripheral | Yes (FS, integrated transceiver) | Yes (FS, integrated) | Yes (FS, integrated) | No | No | No |
| Maximum Clock Speed | 48 MHz / 12 MIPS | 48 MHz / 12 MIPS | 48 MHz / 12 MIPS | 48 MHz / 12 MIPS | 64 MHz / 16 MIPS | 40 MHz / 10 MIPS |
| Supply Voltage | 2.0 V - 3.6 V | 2.0 V - 3.6 V | 2.0 V - 3.6 V | 2.0 V - 3.6 V | 1.8 V - 5.5 V | 4.2 V - 5.5 V |
| Series / Family | PIC18J (XLP, USB) | PIC18J (XLP, USB) | PIC18J (XLP, USB) | PIC18J (XLP) | PIC18K (XLP) | PIC18F (legacy) |
| Unit Price (1 pc, ref) | $6.50 (as of 2026-09-27) | $6.20 (ref) | $5.80 (ref) | $5.40 (ref) | $4.30 (ref) | $5.10 (ref) |
Wichtigste Unterscheidungsmerkmale
- Integrated Full-Speed USB 2.0 transceiver with on-chip 3.3 V regulator (vs. PIC18F25K80T-I/SO)
- nanoWatt XLP Deep Sleep with RTCC (vs. PIC18F2685-I/SO)
- 32K × 16 Flash architecture optimised for C code density (vs. PIC18F25K80T-I/SO)
Designhinweise
The internal 3.3 V regulator output (VUSB3V3, pin 17) must be decoupled with at least 1 µF of low-ESR ceramic (X7R recommended, 4.7 µF for USB compliance). The VCAP pin (pin 20) requires a separate 1 µF-10 µF ceramic to GND. Both capacitors should be placed within 3 mm of their respective pins to ensure USB signalling meets USB-IF impedance and ripple tolerances.
Route USB D+ (pin 24) and D- (pin 23) as a 90 Ω differential pair with continuous ground reference and length matching within 2 mm. Avoid routing other signals between them or beneath them. Place ESD protection (e.g. USBLC6-2SC6) within 10 mm of the connector. Keep the VBUS line ferrite-bead filtered and bypassed before reaching the MCU VUSB pin to suppress upstream switching noise.
Do not exceed 5.5 V on any non-USB-tolerant pin - the absolute maximum is 5.5 V even though VDD core is only 2.0-3.6 V. When migrating from the legacy PIC18F series, note that the J-series loses 5 V tolerance on most I/O. Enable pull-ups on D+ (RC4, pin 27) only after USB attach detection via the UCON register; leaving pull-ups active at power-up will enumerate as a low-power device and fail compliance.
Use a 4-layer PCB with continuous ground plane under the 28-SOIC footprint for noise-sensitive USB signals. If a 2-layer board is unavoidable, place a copper pour under the SOIC body, stitched with at least 8 vias to ground. Keep high-current traces away from D+/D- and the 31 kHz secondary oscillator pins to preserve USB signal integrity.
Compliance-Informationen
RoHS and REACH compliance per Microchip product page. AEC-Q100 qualification is not applicable for this commercial/industrial grade part; AEC-Q100-qualified PIC18 variants exist in the PIC18F K-series automotive line.
