PIC18F26J53T-I/ML - 48MHz 8-bit USB MCU, 64KB Flash | Microchip
MPN: PIC18F26J53T-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.1 | $4.10 |
| 10 | $3.69 | $36.90 |
| 100 | $3.28 | $328.00 |
| 500 | $2.94 | $1,470.00 |
| 1,000 | $2.61 | $2,610.00 |
PIC18F26J53T-I/ML Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and a rich set of peripherals such as timers, ADC, communication interfaces (UART, SPI, I2C, USB), and general-purpose I/O. PIC18 microcontrollers sit within the broader taxonomy: MCU -> embedded microcontroller -> 8-bit microcontroller -> PIC architecture -> PIC18 family -> PIC18J sub-family. They are commonly used where deterministic real-time response, low power, and easy toolchain support are required.
The PIC18F26J53T-I/ML offers 22 digital I/O pins, an internal oscillator, multiple power-managed operating modes, and peripheral features including a 12-bit ADC, comparators, PWM, and full-speed USB 2.0 device/host/OTG. The device operates across 2.0V to 3.6V and supports the industrial -40C to +85C temperature range. Its nanoWatt XLP technology enables standby currents in the deep-sleep mode measured in nanoamperes, making the part attractive for USB-connected, battery-powered designs.
Architecturally, this part uses a Harvard RISC core with 16-bit instructions and 8-bit data paths, plus a hardware multiplier. The on-chip USB 2.0 full-speed transceiver and SIE eliminate the need for an external PHY, simplifying USB peripheral designs. The QFN-28 (6x6) package provides a compact footprint with an exposed pad for improved thermal dissipation at higher CPU loads.
Typical applications include USB peripherals (HID, CDC, MSD), USB charging controllers, portable instrumentation, data loggers, medical USB dongles, sensor hubs, and consumer electronic accessories. The combination of USB, ADC, and low-power modes makes it a strong fit for USB-powered measurement and data-acquisition products.
When designing with the PIC18F26J53T-I/ML, ensure USB DP/DN lines are routed as a 90-ohm differential pair and that the exposed pad is soldered to a sufficient copper pour for thermal relief. Selecting the correct oscillator configuration (internal vs external crystal) is also important for USB timing accuracy.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that go beyond the manufacturer datasheet, giving you a one-stop engineering reference for the PIC18F26J53T-I/ML.
Drop-in alternatives for PIC18F26J53T-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 PIC18F26J53T-I/ML (same form factor and footprint) — differing in ADC, Maximum CPU Frequency, Package, Program Memory (Flash), RAM Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F26J53-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F26J53T-I/SS
✅ Drop-In✓ In Stock
$3.2 / Unit
View Datasheet →PIC18F26J13T-I/ML
✅ Drop-In✓ In Stock
$2.4 / Unit
View Datasheet →PIC18F26J11T-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F24J10T-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F25K83T-I/MX
✅ Drop-In✓ In Stock
$1.82 / Unit
View Datasheet →PIC18F26J53T-I/ML Maximum Ratings & Electrical Characteristics
| Manufacturer | Microchip Technology |
| Series | PIC XLP 18J |
| Core Processor | PIC |
| Core Size | 8-bit |
| Program Memory Size | 64 KB (32K x 16) Flash |
| RAM Size | 3.8 KB (3.8K x 8) |
| Number of I/O | 22 |
| Operating Frequency | 48 MHz |
| Performance | 12 MIPS |
| Supply Voltage Range | 2.0 V to 3.6 V |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| ADC | 12-bit, 10-channel |
| USB Interface | USB 2.0 Full-Speed (Device/Host/OTG), on-chip transceiver |
| Oscillator Type | Internal |
| Package / Case | 28-VFQFN Exposed Pad (6x6 mm) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC18F26J53T-I/ML Pin Configuration
| Pin 1 | RA0 — Digital I/O / analog input AN0 |
| Pin 2 | RA1 — Digital I/O / analog input AN1 |
| Pin 3 | RA2 — Digital I/O / analog input AN2 / CVREF+ |
| Pin 4 | RA3 — Digital I/O / analog input AN3 / VREF+ |
| Pin 5 | RA4 — Digital I/O (open-drain) / analog input AN4 |
| Pin 6 | RA5 — Digital I/O / analog input AN5 |
| Pin 7 | RA6 — Digital I/O / oscillator output |
| Pin 8 | RA7 — Digital I/O / oscillator input |
| Pin 9 | VSS — Ground reference |
| Pin 10 | VDD — Positive supply (2.0V-3.6V) |
| Pin 11 | RB0 — Digital I/O / interrupt-on-change |
| Pin 12 | RB1 — Digital I/O / interrupt-on-change |
| Pin 13 | RB2 — Digital I/O / interrupt-on-change |
| Pin 14 | RB3 — Digital I/O / interrupt-on-change |
| Pin 15 | RB4 — Digital I/O / interrupt-on-change |
| Pin 16 | RB5 — Digital I/O / interrupt-on-change / programming clock |
| Pin 17 | RB6 — Digital I/O / interrupt-on-change / programming data |
| Pin 18 | RB7 — Digital I/O / interrupt-on-change |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply (2.0V-3.6V) |
| Pin 21 | RC0 — Digital I/O / analog input AN6 |
| Pin 22 | RC1 — Digital I/O / analog input AN7 / CCP2 |
| Pin 23 | RC2 — Digital I/O / analog input AN8 / CCP1 / PWM |
| Pin 24 | RC3 — Digital I/O / analog input AN9 / SCL1 |
| Pin 25 | RC4 — Digital I/O / SDA1 / D- |
| Pin 26 | RC5 — Digital I/O / D+ |
| Pin 27 | RC6 — Digital I/O / TX1 / CK1 |
| Pin 28 | RC7 — Digital I/O / RX1 / DT1 |
Typical Applications
PIC18F26J53T-I/ML is suitable for 6 applications: USB Human Interface Device (HID) Peripheral, USB Virtual COM Port (CDC) Bridge, Portable USB Data Logger, USB Sensor Hub, USB Charging Controller Dongle, Industrial USB Configuration Tool.
USB Human Interface Device (HID) Peripheral
The PIC18F26J53T-I/ML is purpose-built for USB HID-class peripherals thanks to its on-chip full-speed USB 2.0 transceiver and SIE, which eliminates the need for an external PHY. With 64 KB of Flash and 12 MIPS performance, it can run Microchip's USB HID stack while leaving ample room for application code such as keyboard scan matrices, mouse sensors, or custom HID interfaces. The 22 digital I/O pins are sufficient for typical HID scan matrices, and the 12-bit ADC supports analog joystick axes or potentiometer inputs. Place a 22-ohm source termination on the DP/DN differential pair and route them as a 90-ohm differential trace per USB 2.0 specifications for reliable signal integrity.
Recommended
USB Virtual COM Port (CDC) Bridge
The PIC18F26J53T-I/ML is well suited for USB-to-UART CDC bridges, replacing legacy RS-232 interfaces in test equipment, industrial modules, and developer boards. The full-speed USB transceiver handles 12 Mbps signaling without external components, and 3.8 KB of RAM is sufficient for USB endpoint buffers plus a CDC line-coding state machine. The 48 MHz oscillator provides the precision clocking required for USB SOF framing. Designers typically pair this MCU with a 3.3 V LDO fed from VBUS so the device remains powered during USB suspend, leveraging the nanoWatt XLP deep-sleep mode to meet USB suspend current requirements of less than 2.5 mA.
Recommended
Portable USB Data Logger
The PIC18F26J53T-I/ML's combination of nanoWatt XLP low-power modes, 64 KB Flash, 12-bit ADC, and USB connectivity makes it a natural choice for portable USB data loggers. The MCU can sample environmental sensors (temperature, humidity, voltage) at low duty cycle, store records in Flash with wear-leveling, and dump the log over USB when tethered. Deep-sleep currents in the nanoampere range extend battery life during standby, while the 12 MIPS performance allows rapid sampling bursts when active. The exposed thermal pad on the 28-QFN package helps dissipate heat during continuous sampling at the 12-bit ADC's full 100 ksps rate.
Recommended
USB Sensor Hub
The PIC18F26J53T-I/ML can act as a USB sensor hub that aggregates data from multiple analog or digital sensors and presents them as HID or vendor-format USB reports. The 12-bit ADC with 10 input channels handles analog sensor arrays directly, while SPI or I2C peripherals communicate with digital sensors. USB full-speed bandwidth (12 Mbps) is more than sufficient for multi-sensor telemetry streams. The 28-QFN (6x6) package is compact enough for wearable and handheld sensor devices, and the industrial temperature range supports factory floor and outdoor installations.
Recommended
USB Charging Controller Dongle
The PIC18F26J53T-I/ML can serve as a smart USB charging dongle that negotiates proprietary charging protocols and reports battery state over USB. Its 12-bit ADC measures VBUS voltage and current via a sense resistor, while the 64 KB Flash accommodates state machines for QC, AFC, and BC1.2 protocols. The exposed pad on the QFN-28 package provides thermal relief for the linear regulator typically paired with this MCU. Industrial -40 C to +85 C temperature rating covers automotive cabin and outdoor deployments.
Recommended
Industrial USB Configuration Tool
Field engineers use the PIC18F26J53T-I/ML in USB configuration tools that program and diagnose industrial controllers, sensors, and actuators. The 48 MHz clock, 64 KB Flash, and 22 I/O allow hosting a USB device stack alongside application logic for parameter setting and firmware update. Industrial -40 C to +85 C operation supports use in factory automation and outdoor installations. The QFN-28 (6x6) footprint allows compact handheld enclosures, and the exposed pad ensures reliable operation at sustained 12 MIPS throughput.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F26J53T-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F26J53-I/ML | PIC18F26J13T-I/ML | PIC18F26J11T-I/ML | PIC18F25K83T-I/MX |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN (6x6 mm) | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same |
| Flash Memory | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB |
| RAM | 3.8 KB | 3.8 KB | 3.8 KB | 3.8 KB | 2 KB |
| USB 2.0 Full-Speed | Yes (Device/Host/OTG) | Yes (Device/Host/OTG) | No | No | No (full-speed via external PHY only) |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 10-bit | 12-bit |
| Operating Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 64 MHz |
| Operating Voltage | 2.0 V to 3.6 V | 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 |
| Unit Price @ qty 100 | USD 3.28 | USD 3.28 | USD 3.05 | USD 2.85 | USD 3.05 |
Key Differentiators
- On-chip full-speed USB 2.0 transceiver (vs PIC18F26J13T-I/ML)
- 12-bit ADC vs 10-bit on lower-tier J-series (vs PIC18F26J11T-I/ML)
- Newer K-series peripherals (CWG, DAC) and broader voltage range (vs PIC18F25K83T-I/MX)
Design Notes
Route the USB DP (RC5) and DN (RC4) signals as a 90-ohm differential pair per the USB 2.0 specification, keeping traces as short as possible and avoiding right-angle bends. Place the VUSB pin decoupling capacitor (typically 220 nF to 1 uF) as close to pin 25 as practical to meet USB suspend current specifications. The exposed pad of the QFN-28 package must be soldered to a ground plane with thermal vias to dissipate heat and provide low-impedance ground return for USB signaling.
Use a low-dropout regulator fed from VBUS (5V) to produce a clean 3.3 V rail for VDD. The PIC18F26J53T-I/ML draws approximately 25 mA when USB is active at full CPU load, so the regulator must source at least 50 mA to handle inrush and transient peaks. Add a 1 uF bulk capacitor plus a 100 nF high-frequency bypass close to each VDD pin (pins 10 and 20) to suppress switching noise. Verify that the regulator output stays above 3.0 V during USB activity, otherwise USB signaling may fail.
When migrating code between PIC18F26J53 and PIC18F24J10, ensure the USB peripheral is properly disabled in the J24 configuration bits since it lacks the on-chip USB SIE. Misconfigured configuration bits will prevent the device from starting. Also note that pin RC4 and RC5 are dual-function: in non-USB designs these are normal digital I/O with I2C capability, but the USB hardware has priority when the USB module is enabled.
Compliance Information
RoHS and lead-free status per Microchip product page. Not AEC-Q100 qualified; for automotive applications consider PIC18F46J53 or PIC18F25K83 automotive grades. Halogen-free status not specified in verified data.
