PIC18F14Q41-E/SO - 8-Bit 64MHz 16KB Flash MCU | Microchip
MPN: PIC18F14Q41-E/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.1 | $2.10 |
| 10 | $1.89 | $18.90 |
| 100 | $1.66 | $166.00 |
| 500 | $1.42 | $710.00 |
| 1,000 | $1.25 | $1,250.00 |
PIC18F14Q41-E/SO Overview
An 8-bit microcontroller (MCU) is a single-chip computer built around a CPU with an 8-bit data path, integrated program memory, RAM, and peripherals. PIC18 microcontrollers belong to Microchip's high-performance 8-bit family, positioned between simpler PIC16 devices and 16-bit dsPIC controllers. They are widely used in cost-sensitive embedded designs where deterministic interrupt response, low power consumption, and rich peripheral integration outweigh the throughput of 32-bit cores. The Q41 family specifically targets analog-intensive and mixed-signal applications with built-in op-amps, high-resolution PWM, and high-channel-count ADCs.
Key features include 18 general-purpose I/O pins with Peripheral Pin Select (PPS) for flexible signal routing, UART, SPI, and I2C communication interfaces, and a wide 1.8V to 5.5V operating voltage range. The device supports up to 64 MHz operation from internal or external clock sources and includes multiple low-power modes for battery-driven applications.
The PIC18F14Q41 leverages an enhanced Harvard architecture with separate code and data buses, instruction pipelining, and a hardware multiplier. The 12-bit ADCC with hardware averaging and threshold detection reduces CPU overhead for sensor acquisition, while the integrated op-amp enables direct signal conditioning without external amplifiers.
Typical applications include industrial sensor nodes, IoT edge devices, LED lighting controllers, motor control subsystems, and battery-powered portable instruments. Designers value the part for compact designs needing strong analog performance in a small footprint.
When designing with this device, ensure the ICSP programming pins are accessible for in-circuit firmware updates and that the exposed pad (if present on the package variant) is soldered to the thermal plane for optimal heat dissipation.
This page synthesizes distributor pricing, drop-in PIC18 family alternatives, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for PIC18F14Q41-E/SO — 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 PIC18F14Q41-E/SO (same form factor and footprint) — differing in Package, ADC, DAC, PWM, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F14Q41-I/SO
✅ Drop-In✓ In Stock
$1.52 / Unit
View Datasheet →PIC18F14Q40-E/SO
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC18F04Q41-E/SL
✅ Drop-In✓ In Stock
$0.79 / Unit
View Datasheet →PIC18F05Q41-E/ST
✅ Drop-In✓ In Stock
$0.72 / Unit
View Datasheet →PIC18F06Q40-E/ST
✅ Drop-In✓ In Stock
$0.81 / Unit
View Datasheet →PIC18F14Q41-E/SO Maximum Ratings & Electrical Characteristics
| Core Processor | PIC18 |
| Core Size | 8-bit |
| Maximum CPU Speed | 64 MHz |
| Program Memory (Flash) | 16 KB (16K x 8) |
| Data RAM | 1 KB |
| Data EEPROM | 512 bytes |
| Number of I/O Pins | 18 |
| ADC Channels | 17 channels of 12-bit ADCC |
| DAC | 2 x 8-bit DAC |
| DMA Channels | 4 |
| On-Chip Op-Amp | Yes |
| PWM | 16-bit PWM modules |
| Communication Interfaces | UART, SPI, I2C |
| Operating Voltage Range | 1.8 V to 5.5 V |
| Package | 20-SOIC (0.295", 7.50 mm width) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40C to +125C (E suffix = Extended) |
| Peripheral Pin Select (PPS) | Yes |
| RoHS Status | Compliant |
PIC18F14Q41-E/SO Pin Configuration
| Pin 1 | RA3/AN3/VREF+ — Port A bit 3 / analog input / voltage reference plus |
| Pin 2 | RA4/AN4 — Port A bit 4 / analog input |
| Pin 3 | RA5/AN5 — Port A bit 5 / analog input |
| Pin 4 | RA6/AN6 — Port A bit 6 / analog input |
| Pin 5 | RA7/AN7 — Port A bit 7 / analog input |
| Pin 6 | VSS — Ground reference |
| Pin 7 | RA0/AN0 — Port A bit 0 / analog input |
| Pin 8 | RA1/AN1 — Port A bit 1 / analog input |
| Pin 9 | RA2/AN2 — Port A bit 2 / analog input |
| Pin 10 | RC0 — Port C bit 0 (PPS-mappable) |
| Pin 11 | RC1 — Port C bit 1 (PPS-mappable) |
| Pin 12 | RC2 — Port C bit 2 (PPS-mappable) |
| Pin 13 | RC3 — Port C bit 3 (PPS-mappable) |
| Pin 14 | RC4 — Port C bit 4 (PPS-mappable) |
| Pin 15 | RC5 — Port C bit 5 (PPS-mappable) |
| Pin 16 | RC6 — Port C bit 6 (PPS-mappable) |
| Pin 17 | RC7 — Port C bit 7 (PPS-mappable) |
| Pin 18 | ICSPCLK/RA4 — In-circuit serial programming clock (shared) |
| Pin 19 | ICSPDAT/RA3 — In-circuit serial programming data (shared) |
| Pin 20 | VDD — Positive supply voltage |
Typical Applications
PIC18F14Q41-E/SO is suitable for 6 applications: Industrial Sensor Node, IoT Edge Device Controller, LED Lighting Controller, Battery-Powered Portable Instrument, Motor Control Subsystem, Automotive Under-Hood Sensor Module.
Industrial Sensor Node
The PIC18F14Q41-E/SO fits industrial sensor nodes because its integrated op-amp, 17 channels of 12-bit ADCC, and 16 KB Flash handle multi-signal conditioning without external analog components. Placed on a 4-layer PCB between the sensor bridge and an RS-485 transceiver, the on-chip op-amp provides first-stage gain while the ADCC digitizes at 100 ksps with hardware averaging. The 64 MHz core runs deterministic control loops under 10 ms, and PPS remaps UART/SPI to any GPIO for flexible PCB routing.
Recommended
IoT Edge Device Controller
For IoT edge devices, the PIC18F14Q41-E/SO delivers low-power operation from 1.8V to 5.5V with deep-sleep current suitable for battery-powered sensors. Combined with a sub-GHz or BLE module via SPI, the MCU aggregates sensor data using its 4 DMA channels without CPU intervention, freeing MIPS for application logic. The 16-bit PWM modules drive status LEDs or haptic feedback while UART provides debug console access. Its wide voltage range tolerates Li-ion battery discharge curves directly.
Recommended
LED Lighting Controller
The PIC18F14Q41-E/SO drives multi-channel LED lighting systems using its 16-bit PWM modules with fine-grained dimming resolution down to sub-1% steps. The 12-bit ADCC reads ambient light sensors and thermistors for closed-loop brightness and color-temperature control, while the on-chip op-amp conditions current-sense feedback for constant-current drivers. Operating from a 24V industrial bus down-rail, the MCU orchestrates DMX or DALI protocols over UART, with PPS allowing flexible pin assignment to LED driver ICs.
Recommended
Battery-Powered Portable Instrument
For portable instruments powered by 2x AA or coin cells, the PIC18F14Q41-E/SO's 1.8V minimum operation and low-power sleep modes extend battery life into multi-year ranges. The 12-bit ADCC accurately digitizes battery voltage, temperature, and sensor inputs, while EEPROM stores calibration constants across power cycles. The hardware DMA offloads repetitive peripheral transfers during active measurement, and the integrated op-amp eliminates a discrete amplifier for ECG, pulse-oximetry, or environmental sensing front-ends.
Recommended
Motor Control Subsystem
The PIC18F14Q41-E/SO supports small brushed DC and stepper motor control with its 16-bit PWM providing smooth torque and speed profiles. The ADCC samples back-EMF or shunt current signals at high rates, while the op-amp conditions analog feedback. With PPS, designers route PWM outputs and fault inputs to any GPIO, simplifying PCB layout for compact motor boards. Operating from 3.3V or 5V, the MCU suits robotic joints, valve actuators, and small pump controllers.
Recommended
Automotive Under-Hood Sensor Module
The PIC18F14Q41-E/SO's extended -40C to +125C temperature range targets under-hood automotive applications where engine-bay heat stresses electronics. Its on-chip op-amp and 12-bit ADCC digitize temperature, pressure, and position sensors with high noise immunity, while the DMA channels support real-time CAN-style communication via SPI to a CAN transceiver IC. The integrated EEPROM stores vehicle calibration data, and PPS simplifies EMC-conscious PCB routing by remapping digital functions away from noise-sensitive analog traces.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F14Q41-E/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F14Q41-I/SO | PIC18F14Q40-E/SO | PIC18F04Q41-E/SL |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SOIC | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same |
| Flash Memory | 16 KB | 16 KB | 16 KB | 8 KB |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB |
| EEPROM | 512 B | 512 B | 512 B | 512 B |
| Maximum CPU Speed | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Number of I/O | 18 | 18 | 18 | 14 |
| Temperature Range | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +125C |
| On-Chip Op-Amp | Yes | Yes | Yes | Yes |
Key Differentiators
- Higher Flash memory than F04 sibling (vs PIC18F04Q41-E/SL)
- Extended temperature range for harsh environments (vs PIC18F14Q41-I/SO)
- On-chip operational amplifier eliminates external component (vs PIC18F14Q40-E/SO)
Design Notes
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 20) and a bulk capacitor (e.g., 10 uF) on the supply rail. The PIC18F14Q41-E/SO operates from 1.8V to 5.5V; for stable ADC readings, AVdd should be tied to VDD and a separate low-noise LDO is recommended if the supply is shared with switching converters. The on-chip voltage reference can be used for ratiometric measurements, but for absolute accuracy use an external precision reference.
Route analog input traces (AN0-AN7) away from digital switching signals to minimize coupled noise into the 12-bit ADCC. Keep the analog ground (VSS) star-connected to the digital ground at a single point near the MCU. The Peripheral Pin Select (PPS) feature allows remapping of UART/SPI/I2C to any GPIO, so place high-speed digital lines on inner PCB layers adjacent to a continuous ground plane for controlled impedance. The 20-SOIC has standard JEDEC land pattern with 0.05" pin pitch.
Do not leave the MCLR pin floating - tie it to VDD through a 10 kohm resistor for proper reset operation. When using ICSP programming, ensure ICSPCLK and ICSPDAT are not loaded with heavy capacitance (>30 pF) to maintain reliable in-circuit programming. The PPS remapping must be configured in firmware before peripheral use; failing to do so results in non-functional peripherals. ADCC acquisition time must be set per the datasheet electrical characteristics for the chosen source impedance to avoid conversion errors.
Compliance Information
RoHS compliant per Microchip product page. The -E temperature grade suits automotive under-hood and high-temperature industrial environments, but the device is not formally AEC-Q100 qualified - check Microchip's automotive product line for Q100-qualified variants if required.
