PIC18F04Q41-I/SL - 8-Bit 64MHz MCU, 16KB Flash | Microchip
MPN: PIC18F04Q41-I/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.4446 | $1.44 |
| 10 | $1.3 | $13.00 |
| 100 | $1.1 | $110.00 |
| 500 | $0.95 | $475.00 |
| 1,000 | $0.85 | $850.00 |
PIC18F04Q41-I/SL Overview
A PIC18 microcontroller is an 8-bit Harvard-architecture MCU from Microchip that sits within the broader 8-bit MCU category (8-bit MCU -> microcontroller -> embedded processor -> semiconductor). The PIC18 family extends the mid-range PIC16 architecture with a 16-bit instruction word, hardware multiply, linear program memory up to 128 KB, and a vectored interrupt controller, making it suitable for applications that exceed PIC16 capabilities but do not require a 16-bit dsPIC or 32-bit MCU.
Key features of the PIC18F04Q41-I/SL include 16 KB Flash (16K x 8), 1 KB SRAM, 512 bytes EEPROM, a 12-bit ADCC, dual 8-bit DACs, a 16-bit PWM, an on-chip op-amp, CLC (Configurable Logic Cell) CIPs, and peripherals such as UART, SPI, I2C, and 12-bit ADC2. The wide 1.8 V to 5.5 V operating range supports battery and 5 V regulated designs, while peripheral pin select (PPS) allows flexible signal routing on the limited 14-pin footprint.
Architecturally, the part uses Microchip's enhanced mid-range core with a modified Harvard bus, single-cycle ALU access to working registers, and 31-level hardware stack. The integrated CIPs - CLC, NCO, PWM, and ADCC - allow autonomous operation without CPU intervention, freeing MIPS for application logic and reducing interrupt load in real-time control loops.
Typical applications include IoT sensor nodes, LED lighting controllers, medical wearables, low-end motor control, white goods, and battery-powered instrumentation. The combination of compact package, on-chip op-amp, and 12-bit ADC makes it especially attractive for analog signal conditioning and sensor fusion designs.
When designing with this MCU, evaluate the 14-pin I/O budget against required pin functions and use PPS to remap peripherals. Ensure the supply decoupling network follows Microchip's recommended 100 nF + bulk capacitor placement to keep the 5.5 V tolerant pins within absolute maximum ratings during ESD transients.
This page synthesizes distributor pricing, pin-compatible same-family alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC18F04Q41-I/SL — 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 PIC18F04Q41-I/SL (same form factor and footprint) — differing in ADC, PWM, DAC, Package, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F04Q41-E/SL
✅ Drop-In✓ In Stock
$0.79 / Unit
View Datasheet →PIC18F04Q41-I/ST
✅ Drop-In✓ In Stock
$1.2 / Unit
View Datasheet →PIC18F14Q41-I/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F04Q41-I/SLVAO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F04Q40-I/SL
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC18F04Q41-I/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC18 enhanced mid-range |
| Program Memory (Flash) | 16 KB (16K x 8) |
| SRAM | 1 KB |
| EEPROM | 512 bytes |
| Maximum CPU Speed | 64 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| ADC | 12-bit ADC2 with Computation (ADCC) |
| DAC | 8-bit DAC (dual) |
| PWM | 16-bit PWM |
| On-chip Operational Amplifier | Yes (1x) |
| Package | 14-pin SOIC (SL) |
| Operating Temperature Range | -40C to +85C (Industrial) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| MSL Level | 1 |
PIC18F04Q41-I/SL Pin Configuration
| Pin 1 | RA2 — Bidirectional I/O with PPS, analog-capable |
| Pin 2 | RA3 — Bidirectional I/O with PPS |
| Pin 3 | RA4 — Bidirectional I/O with PPS |
| Pin 4 | RA5/MCLR — Master Clear (reset) or bidirectional I/O |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RA6/OSC2 — Crystal oscillator output or digital I/O |
| Pin 7 | RA7/OSC1 — Crystal oscillator input or digital I/O |
| Pin 8 | VDD — Positive supply voltage (1.8 V to 5.5 V) |
| Pin 9 | RA1 — Bidirectional I/O with PPS, analog-capable |
| Pin 10 | RA0 — Bidirectional I/O with PPS, analog-capable |
| Pin 11 | RC5 — Bidirectional I/O with PPS |
| Pin 12 | RC4 — Bidirectional I/O with PPS |
| Pin 13 | RC3 — Bidirectional I/O with PPS |
| Pin 14 | RC2 — Bidirectional I/O with PPS |
Typical Applications
PIC18F04Q41-I/SL is suitable for 6 applications: IoT Sensor Node, LED Lighting Controller, Battery-Powered Medical Wearable, Low-End BLDC Motor Control, White Goods Control Board, Industrial Sensor Transmitter.
IoT Sensor Node
The PIC18F04Q41-I/SL suits battery-powered IoT sensor nodes thanks to its 1.8 V to 5.5 V operating range and integrated 12-bit ADCC. The on-chip op-amp front-ends a thermistor or photodiode signal directly, allowing the MCU to digitize sensor output without an external amplifier and saving roughly 0.5 to 1 square centimeter of PCB area. Combined with CLC (Configurable Logic Cell) for wake-on-signal and the 16-bit PWM for LED indication, the part handles sensor conditioning, computation, and user feedback in a single 14-pin SOIC. PPS remapping lets the designer place UART, I2C, or SPI on any I/O, simplifying board routing in compact wireless sensor modules.
Recommended
LED Lighting Controller
In LED lighting applications, the PIC18F04Q41-I/SL delivers precise dimming via its 16-bit PWM while the dual 8-bit DACs generate reference levels for constant-current drivers. The 64 MHz CPU clock provides comfortable headroom for color-mixing math in RGBW fixtures, and the wide 5.5 V tolerance lets the part run directly from a rectified 5 V rail. The 12-bit ADCC samples light-feedback photodiodes in real time, enabling closed-loop luminous flux control. With Peripheral Pin Select, the same firmware can target different board layouts across product variants without code changes.
Recommended
Battery-Powered Medical Wearable
For medical wearables, the PIC18F04Q41-I/SL combines low-power operation at 1.8 V with on-chip analog integration. The integrated op-amp conditions biopotential signals (EMG or ECG) before digitization by the 12-bit ADCC, eliminating an external instrumentation amplifier and reducing BOM cost in single-use designs. The 1 KB SRAM and 512-byte EEPROM are sufficient for short biosignal buffers plus patient identifiers, while the 16 KB Flash hosts application firmware with margin for future feature expansion. CIPs like CLC and NCO offload waveform generation from the CPU, extending battery life by reducing active-mode duty cycle.
Recommended
Low-End BLDC Motor Control
The PIC18F04Q41-I/SL drives small brushless DC motors in appliances and fans using its 16-bit PWM and the 12-bit ADCC for back-EMF sensing. The on-chip op-amp amplifies the BEMF signal before ADC sampling, supporting sensorless commutation without external analog stages. CLC CIPs handle zero-cross detection autonomously, freeing CPU cycles for speed-loop math at the 64 MHz clock. The 14-SOIC footprint fits within tight motor housings, and the 5.5 V tolerance interfaces directly with low-voltage gate-driver ICs.
Recommended
White Goods Control Board
In white goods like coffee machines and small appliances, the PIC18F04Q41-I/SL provides a cost-optimized control hub integrating user-interface sensing, temperature acquisition, and triac/PWM driver control. The 12-bit ADC reads thermistor inputs directly while the 16-bit PWM modulates heating elements or pumps. The 1.8 V to 5.5 V range supports direct 5 V or 3.3 V regulated supplies commonly found in appliance power trees. Internal EEPROM stores user settings across power cycles, and the 14-SOIC package withstands standard wave-solder and reflow profiles used in white-goods manufacturing.
Recommended
Industrial Sensor Transmitter
The PIC18F04Q41-I/SL is well-suited to compact industrial sensor transmitters requiring loop-powered or 24 V bus operation. The wide 1.8 V to 5.5 V supply range works with most 4-20 mA loop interfaces when paired with a low-dropout regulator, while the 12-bit ADCC and on-chip op-amp form a complete analog front-end for bridge sensors such as strain gauges or load cells. CLCs implement zero-cross timing and PWM-driven HART modulation without CPU load. The -40C to +85C industrial temperature grade covers most factory-floor installations, and the 14-SOIC footprint fits inside standard sensor heads.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F04Q41-I/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F04Q41-E/SL | PIC18F04Q41-I/ST | PIC18F14Q41-I/SL | PIC18F04Q41-I/SLVAO | PIC18F04Q40-I/SL |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC (SL) | 14-SOIC (SL) - same | 14-TSSOP (ST) - different | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Maximum CPU Clock | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| On-chip Op-Amp | Yes | Yes | Yes | Yes | Yes | No |
| CLC CIPs | Yes | Yes | Yes | Yes | Yes | Limited |
| Unit Price (1+) | $1.4446 | $1.50 - $1.65 (estimated, E grade premium) | $1.40 - $1.55 (estimated) | $1.45 - $1.60 (estimated) | $1.55 - $1.75 (estimated, automotive premium) | $1.30 - $1.45 (estimated, prior generation) |
Key Differentiators
- Integrated on-chip op-amp eliminates external analog front-end (vs PIC18F04Q40-I/SL)
- Wide 1.8 V to 5.5 V VDD supports battery and 5 V bus designs (vs PIC18F04Q41-E/SL (extended temp))
- 14-pin SOIC footprint is more rework-friendly than TSSOP (vs PIC18F04Q41-I/ST)
Design Notes
Decouple VDD (pin 8) with a 100 nF X7R ceramic capacitor placed within 3 mm of the package, plus a 4.7 uF bulk capacitor on the same node. The PIC18F04Q41-I/SL operates from 1.8 V to 5.5 V; transient suppression (TVS) is recommended near MCLR (pin 4) to clamp ESD below the 5.5 V absolute maximum rating, since MCLR is a high-impedance input that can couple board-level ESD into the supply rail during handling.
Do not rely on the internal default FOSC configuration in production firmware without explicit configuration-bit validation. The PIC18F04Q41-I/SL ships with a configuration that selects the internal oscillator, but if a crystal footprint is populated and the firmware leaves CONFIG1H[IESO] enabled incorrectly, the device may fail to start on cold boards. Always verify configuration bits via #pragma config in XC8 and validate oscillator startup time using the OST specification in DS40002242C.
The 14-pin SOIC (SL) package provides generous pad sizes for hand-soldering and rework, unlike the TSSOP-14 alternative. Place a continuous ground pour beneath the device to provide thermal dissipation and a low-impedance return path for high-speed digital edges on PPS-mapped peripherals. Keep crystal traces (RA6/OSC2, RA7/OSC1) under 10 mm if used, surrounded by ground guard traces, to avoid coupling noise into the system clock.
Compliance Information
RoHS and lead-free confirmed by Microchip product environmental documentation and LCSC listing C1020221. Not AEC-Q100 qualified in standard -I grade; choose -I/SLVAO for automotive catalog or -E for extended temperature.
