PIC18LF24J11-I/SS - 8-bit 48MHz 16KB Flash MCU | Microchip
MPN: PIC18LF24J11-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.2 | $3.20 |
| 10 | $2.85 | $28.50 |
| 100 | $2.4 | $240.00 |
| 500 | $2.1 | $1,050.00 |
| 1,000 | $1.85 | $1,850.00 |
PIC18LF24J11-I/SS Overview
What is an 8-bit PIC microcontroller? An 8-bit microcontroller is a single-chip computer that processes data 8 bits at a time and integrates CPU, Flash, RAM, peripherals, and I/O on one die. The PIC18 LF family (the LF prefix denotes the wide-voltage 2.0V-3.6V nanoWatt XLP variant) sits within Microchip's PIC18 architecture taxonomy: 8-bit PIC -> PIC18 -> PIC18 J-series -> PIC18F/LF24J11 sub-family. Compared with 32-bit ARM Cortex-M cores, a PIC18 trades raw MIPS for deterministic latency, ultra-low sleep current, and a mature MPLAB X toolchain backed by thousands of code examples.
Key features of the PIC18LF24J11-I/SS include 16 KB of self-programmable Flash memory (8K x 16 words), 3.8 KB SRAM, deep-sleep current down to a few nanoamps typical, and the Peripheral Pin Select (PPS) module that remaps digital peripherals to any remappable I/O pin, simplifying PCB routing and BOM reuse across family variants.
The architecture is built on an enhanced Harvard RISC core with a hardware multiplier, an 8-bit data path, and 16-bit instructions, achieving approximately 12 MIPS at 48 MHz. The integrated 10-bit ADC supports up to 13 input channels, while USB 2.0 full-speed with integrated transceiver enables HID, CDC, and proprietary USB device classes without external PHYs.
Typical applications include battery-powered medical sensors, USB HID peripherals, industrial sensor nodes, and portable consumer devices that benefit from nanoWatt XLP standby current. The 28-pin SSOP footprint suits compact designs where board area is constrained.
When designing with this part, configure the PPS registers during initialization to map peripherals to desired I/O pins, choose the deep-sleep mode for battery-life optimization, and reserve the I/O budget for the planned USB, UART, and ADC channels during PCB layout. Verify ECCN and licensing rules if used in end products with cryptography co-processors or secure boot modules.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a faster path from selection to prototype.
Drop-in alternatives for PIC18LF24J11-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 PIC18LF24J11-I/SS (same form factor and footprint) — differing in Package, I/O Pins, Operating Temperature, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18LF24J11T-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F24J11-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F24J11T-I/SS
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC18LF24J10-I/SS
✅ Drop-In✓ In Stock
$2.45 / Unit
View Datasheet →PIC18LF24J11-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18LF24J11-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC18 enhanced Harvard RISC |
| Program Memory (Flash) | 16 KB (8K x 16 words) |
| Data Memory (SRAM) | 3.8 KB |
| Maximum CPU Speed | 48 MHz (12 MIPS) |
| Supply Voltage Range | 2.0 V to 3.6 V (LF wide-voltage range) |
| ADC | 10-bit, up to 13 channels |
| USB | USB 2.0 Full-Speed with integrated transceiver |
| Peripheral Pin Select (PPS) | Yes |
| nanoWatt XLP Technology | Yes (deep-sleep, low-power modes) |
| Operating Temperature Range | -40C to +85C (industrial, I suffix) |
| Package | 28-pin SSOP |
| Mounting Type | Surface Mount |
| Lead-Free / RoHS Status | Lead-Free / RoHS Compliant |
PIC18LF24J11-I/SS Pin Configuration
| Pin 1 | RA0/AN0 — Digital I/O RA0 / analog input AN0 |
| Pin 2 | RA1/AN1 — Digital I/O RA1 / analog input AN1 |
| Pin 3 | RA2/AN2/VREF+ — Digital I/O RA2 / analog input AN2 / ADC VREF+ |
| Pin 4 | RA3/AN3/VREF- — Digital I/O RA3 / analog input AN3 / ADC VREF- |
| Pin 5 | RA4 — Digital I/O RA4 |
| Pin 6 | RA5/AN4 — Digital I/O RA5 / analog input AN4 |
| Pin 7 | VDD — Positive supply voltage input |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI/RA7 — Crystal input / external clock / digital I/O RA7 |
| Pin 10 | OSC2/CLKO/RA6 — Crystal output / clock output / digital I/O RA6 |
| Pin 11 | RC0 — Digital I/O RC0 |
| Pin 12 | RC1 — Digital I/O RC1 |
| Pin 13 | RC2 — Digital I/O RC2 |
| Pin 14 | RC3 — Digital I/O RC3 |
| Pin 15 | RC4/D-/VM — Digital I/O RC4 / USB D- / USB VBUS monitor |
| Pin 16 | RC5/D+/VP — Digital I/O RC5 / USB D+ / USB VBUS sense |
| Pin 17 | RC6 — Digital I/O RC6 |
| Pin 18 | RC7 — Digital I/O RC7 |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage input |
| Pin 21 | RB0/AN12 — Digital I/O RB0 / analog input AN12 |
| Pin 22 | RB1/AN10 — Digital I/O RB1 / analog input AN10 |
| Pin 23 | RB2/AN8 — Digital I/O RB2 / analog input AN8 |
| Pin 24 | RB3/AN9 — Digital I/O RB3 / analog input AN9 |
| Pin 25 | RB4/AN11 — Digital I/O RB4 / analog input AN11 |
| Pin 26 | RB5/AN13 — Digital I/O RB5 / analog input AN13 |
| Pin 27 | RB6 — Digital I/O RB6 |
| Pin 28 | RB7 — Digital I/O RB7 |
Typical Applications
PIC18LF24J11-I/SS is suitable for 7 applications: Battery-Powered Medical Sensor Nodes, USB HID Peripherals (Keyboards, Mice, Game Pads), Industrial Sensor and Transducer Modules, Portable Consumer Devices (Remote Controls, Toys, Wearables), IoT Sensor Edge Nodes, USB CDC Virtual COM Port Devices, Automotive Adjacent Sensor Modules.
Battery-Powered Medical Sensor Nodes
The PIC18LF24J11-I/SS is well matched to wearable medical sensors thanks to its 2.0V-3.6V wide voltage range, nanoWatt XLP deep-sleep current typically under 100 nA, and 3.8 KB SRAM that comfortably buffers a few minutes of pulse-oximeter or temperature data. Placed as the central MCU, the part wakes periodically, samples the 10-bit ADC up to 13 channels, transmits over UART or low-energy radio, and re-enters deep sleep to maximize coin-cell battery life. Its 48 MHz core provides 12 MIPS to handle signal-conditioning math between sleeps, and 16 KB Flash fits a full BLE command stack plus factory calibration tables.
Recommended
USB HID Peripherals (Keyboards, Mice, Game Pads)
The integrated USB 2.0 Full-Speed controller with on-chip transceiver makes the PIC18LF24J11-I/SS a strong choice for USB HID peripherals. Designers route the D+/D- pins directly to the USB connector with no external PHY, and the Microchip MLA USB stack provides ready HID class drivers in MPLAB X for keyboards, mice, custom HID, and combo devices. With 16 KB Flash the MCU fits a full HID descriptor table plus macro support, while 3.8 KB SRAM handles HID report buffers. Operating from 3.3V VBUS-derived rail avoids needing a separate 5V supply on the dongle side.
Recommended
Industrial Sensor and Transducer Modules
Industrial sensor modules benefit from the PIC18LF24J11-I/SS industrial temperature grade (-40C to +85C), 10-bit ADC, and Peripheral Pin Select that lets designers move analog channels around the 28-pin SSOP land pattern to optimize PCB routing. The part drives 4-20 mA loop transducers, RTD signal chains, and Modbus-RTU over UART while consuming under 1 mA active. With 48 MHz headroom and a hardware multiplier, the MCU runs PID control loops on heater or motor stages, and 16 KB Flash reserves room for calibration constants plus a small Modbus stack.
Recommended
Portable Consumer Devices (Remote Controls, Toys, Wearables)
The nanoWalt XLP deep-sleep current of the PIC18LF24J11-I/SS (sub-100 nA typical) makes it ideal for coin-cell-powered remote controls and wearables, where battery life dominates the BOM. The wide 2.0V-3.6V supply rides out the natural voltage sag of a CR2032 from new to nearly depleted, while the 10-bit ADC with up to 13 channels reads capacitive touch, IR receivers, and battery voltage. The integrated USB on-chip transceiver simplifies the design of toys and wearables that occasionally tether to a host for firmware update or data sync.
Recommended
IoT Sensor Edge Nodes
The PIC18LF24J11-I/SS serves as the edge MCU for IoT sensor nodes interfacing with Wi-Fi/BLE modules via UART, I2C, or SPI. Its nanoWatt XLP features let the part sleep deeply between sensor reads, drawing microamp currents while a wireless module stays powered down. With 16 KB Flash the firmware comfortably fits BLE provisioning state machines plus OTA update stubs, while 3.8 KB SRAM holds sensor-fusion windows. The 28-pin SSOP also keeps the PCB small enough to fit alongside a coin cell and antenna.
Recommended
USB CDC Virtual COM Port Devices
The PIC18LF24J11-I/SS is ideal for USB CDC virtual COM port devices such as diagnostic bridges, sensor-to-PC data loggers, and field-programming tools. The integrated USB 2.0 Full-Speed controller and on-chip transceiver eliminate external PHYs, and the Microchip MLA USB stack provides a ready CDC class driver so the firmware only needs a tiny UART-to-USB shim. With 16 KB Flash the code easily fits the CDC stack plus application protocol, and 3.8 KB SRAM handles standard 64-byte CDC transfer buffers without overruns.
Recommended
Automotive Adjacent Sensor Modules
While not AEC-Q100 qualified, the PIC18LF24J11-I/SS serves automotive-adjacent and aftermarket sensor modules such as OBD-II readers, garage-door sensors, and dashcam accessories that operate from a regulated 3.3V rail. The 28-pin SSOP footprint accepts Microchip's proven automotive-grade PIC18 cousins (for example, PIC18F24K50) on the same land pattern, easing upgrades to AEC-Q100 line parts for production. The 48 MHz core, 10-bit ADC, and USB support suit CAN-bus bridges and OBD diagnostic dongles.
Recommended
Recommended Products Summary
Engineering reference data for PIC18LF24J11-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18LF24J11T-I/SS | PIC18F24J11-I/SS | PIC18F24J11T-I/SS | PIC18LF24J10-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology (same brand) | Microchip Technology (same brand) | Microchip Technology (same brand) | Microchip Technology (same brand) |
| Package | SSOP-28 | SSOP-28 - same | SSOP-28 - same | SSOP-28 - same | SSOP-28 - same |
| Core Architecture | 8-bit PIC18 enhanced Harvard RISC | 8-bit PIC18 enhanced Harvard RISC | 8-bit PIC18 enhanced Harvard RISC | 8-bit PIC18 enhanced Harvard RISC | 8-bit PIC18 enhanced Harvard RISC |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB (PIC18LF24J10 part) |
| Maximum Clock Speed | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) |
| Supply Voltage Range | 2.0V to 3.6V (LF wide voltage) | 2.0V to 3.6V (LF) | 2.0V to 3.6V (F variant corner) | 2.0V to 3.6V (F variant corner) | 2.0V to 3.6V (LF) |
| USB 2.0 Full-Speed | Yes (integrated transceiver) | Yes (integrated) | Yes (integrated) | Yes (integrated) | Yes (integrated) |
| nanoWatt XLP Deep Sleep Optimization | Yes (LF variant) | Yes (LF variant) | F variant (standard sleep, not XLP-LF-tuned) | F variant (standard sleep) | Yes (LF variant) |
| Operating Temperature Range | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| Packaging Variant | Tube (-I/SS) | Tape and reel (T suffix) | Tube (F variant) | Tape and reel (F + T) | Tube (-I/SS) |
Key Differentiators
- Wide-voltage LF variant with nanoWatt XLP deep-sleep optimization (vs PIC18F24J11-I/SS)
- Same-die tape-and-reel packaging variant (vs PIC18LF24J11T-I/SS)
- Integrated USB 2.0 Full-Speed with on-chip transceiver (vs PIC18LF24J10-I/SS)
Design Notes
Estimated: at 48 MHz CPU speed and 3.3V supply the PIC18LF24J11-I/SS active current rises into the low single-digit milliamps. Battery-life calculations must use the worst-case I_DD value from the datasheet electrical characteristics rather than typical values, and enable nanoWatt XLP deep-sleep mode between sensor reads to draw nanoamps. Add a 10 uF bulk and 100 nF decoupling cap near VDD pins 7 and 20. For USB-powered designs, account for the 1.5 kohm pull-up resistor on the D+ line and the 200 mA inrush budget at enumeration.
Route the 28-pin SSOP at 0.65 mm pitch with 0.1uF and 1uF bypass caps placed within 5 mm of each VDD pin. Keep crystal traces short and ground the OSC shield, or use an external clock source if EMI is a concern. Place a 0 ohm ferrite bead on the VBUS-to-VDD rail when the design is USB-powered to isolate MCU noise from the host. The 28-pin SSOP also needs a thermal copper pour under the exposed lead frame for high-temperature or high-IO-density designs.
Do not leave unconfigured PPS registers in their reset state or peripherals may end up on undesired pins. Always validate the configuration bits (CONFIG1L through CONFIG5L) match the desired clock source, watchdog, and low-voltage programming settings before locking them. When moving firmware from PIC18F24J11 to PIC18LF24J11, recompile with the LF configuration bits or the deep-sleep mode may behave differently. Verify the I/O budget against your application because the 28-pin part has fewer I/O than the 44-pin PIC18F/LF44J11 cousins.
Compliance Information
Lead-free and RoHS compliant per Microchip product page. Industrial temperature grade (-40C to +85C) but not AEC-Q100 qualified - not recommended for in-cabin or under-hood automotive applications.
