PIC18F14Q41T-I/SO - 8-bit 64MHz 16KB Flash MCU | Microchip
MPN: PIC18F14Q41T-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.62 | $1.62 |
| 10 | $1.45 | $14.50 |
| 100 | $1.18 | $118.00 |
| 500 | $0.95 | $475.00 |
| 1,000 | $0.78 | $780.00 |
PIC18F14Q41T-I/SO Overview
What is a PIC18 8-bit microcontroller? A PIC18 microcontroller is an 8-bit Harvard-architecture MCU from Microchip Technology built on a modified RISC core with a rich peripheral set. Within the broader taxonomy, PIC18 sits inside PIC microcontrollers -> microcontrollers -> embedded ICs -> integrated circuits -> semiconductors. The Q41 family in particular targets mixed-signal applications by integrating a 12-bit ADC with computation (ADCC), an 8-bit DAC, an on-chip operational amplifier, DMA, and configurable peripherals via Peripheral Pin Select (PPS).
Key features include a 12-bit ADCC for high-resolution analog measurements, an 8-bit DAC, an on-chip op-amp for signal conditioning, a 16-bit PWM for precision motor and lighting control, Direct Memory Access (DMA) for offloading the CPU, and PPS for flexible pin assignments. The on-chip op-amp and ADCC combination is designed to minimize external analog components in sensor and closed-loop control designs.
The device operates from 2.3V to 5.5V, supports UART, SPI, and I2C communication interfaces, and includes Core Independent Peripherals (CIPs) that allow complex functions to run without CPU involvement. The 64 MHz internal oscillator enables high-speed operation without an external crystal in many designs.
Typical applications include sensor signal conditioning with on-chip op-amp + ADC, BLDC/PMSM motor control using the 16-bit PWM, LED lighting control, IoT edge nodes, and small appliance control boards.
When designing with this part, leverage PPS to route peripherals to available pins and use the on-chip op-amp to eliminate external analog stages. The DMA controller can significantly reduce CPU load in high-throughput ADC or communication tasks.
This page synthesizes distributor pricing, verified drop-in alternatives from Microchip's PIC18 family, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC18F14Q41T-I/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 PIC18F14Q41T-I/SO (same form factor and footprint) — differing in Package, ADC, Program Memory (Flash), DAC, PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F14Q41-I/SO
✅ Drop-In✓ In Stock
$1.52 / Unit
View Datasheet →PIC18F14Q41-E/SO
✅ Drop-In✓ In Stock
$1.25 / Unit
View Datasheet →PIC18F14K50T-I/SO
✅ Drop-In✓ In Stock
$1.7 / Unit
View Datasheet →PIC18F14K22T-I/SO
✅ Drop-In✓ In Stock
$1.48 / Unit
View Datasheet →PIC18F1320T-I/SO
✅ Drop-In✓ In Stock
$4.21 / Unit
View Datasheet →PIC18F14Q41T-I/SO Maximum Ratings & Electrical Characteristics
| Architecture | 8-bit PIC18 (Harvard, modified RISC) |
| Family | PIC18-Q41 |
| Core | PIC18 enhanced |
| Maximum CPU Frequency | 64 MHz |
| Program Memory (Flash) | 16 KB (16K x 8) |
| Data Memory (SRAM) | 1 KB |
| EEPROM | 512 bytes |
| ADC | 12-bit ADC with Computation (ADCC) |
| DAC | 8-bit DAC |
| On-Chip Op-Amp | Yes |
| PWM | 16-bit PWM |
| DMA | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Operating Voltage | 2.3 V to 5.5 V |
| Communication Interfaces | UART, SPI, I2C |
| Package | 20-pin SOIC |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC18F14Q41T-I/SO Pin Configuration
| Pin 1 | RA5 — General purpose I/O / DAC output / op-amp output |
| Pin 2 | RA4 — General purpose I/O |
| Pin 3 | RA3 — General purpose I/O |
| Pin 4 | RA2 — General purpose I/O |
| Pin 5 | RA1 — General purpose I/O / ICSPCLK |
| Pin 6 | RA0 — General purpose I/O / ICSPDAT |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RA7 — General purpose I/O |
| Pin 9 | RA6 — General purpose I/O / CLKIN |
| Pin 10 | RC0 — General purpose I/O |
| Pin 11 | RC1 — General purpose I/O |
| Pin 12 | RC2 — General purpose I/O |
| Pin 13 | RC3 — General purpose I/O |
| Pin 14 | RC4 — General purpose I/O |
| Pin 15 | RC5 — General purpose I/O |
| Pin 16 | RC6 — General purpose I/O |
| Pin 17 | RC7 — General purpose I/O |
| Pin 18 | VSS — Ground reference (second VSS pin) |
| Pin 19 | VDD — Positive supply voltage 2.3V-5.5V |
| Pin 20 | RA5/MCLR — Master Clear (reset) input / RA5 |
Typical Applications
PIC18F14Q41T-I/SO is suitable for 6 applications: Sensor Signal Conditioning with On-Chip Op-Amp, BLDC / PMSM Motor Control, LED Lighting and Dimming Control, Small Appliance and White-Goods Control Boards, Industrial Sensor Transmitters (4-20 mA / 0-10 V), IoT Edge Nodes with UART/SPI/I2C Sensor Hubs.
Sensor Signal Conditioning with On-Chip Op-Amp
The PIC18F14Q41T-I/SO's on-chip operational amplifier pairs directly with its 12-bit ADCC to provide a complete single-chip analog front-end for resistive-bridge, thermistor, or current-sense sensors. According to the Microchip datasheet, the op-amp output can be routed internally to the ADC input, eliminating an external instrumentation stage and reducing both BOM cost and PCB area. The ADCC's computation features (averaging, oversampling, threshold comparisons) further offload the CPU, making this part ideal for factory-automation sensor transmitters and IoT edge nodes where every microamp of quiescent current and every square millimeter of board area matter.
Recommended
BLDC / PMSM Motor Control
The PIC18F14Q41T-I/SO delivers the timing precision required for BLDC, PMSM, and stepper motor commutation through its 16-bit PWM with complementary outputs and programmable dead-band. The 64 MHz CPU clock and 12-bit ADCC provide the sampling resolution for back-EMF sensing and current sense via shunt resistors, while the on-chip op-amp can be configured as a current-sense amplifier. According to the Microchip datasheet, the DMA controller can move ADC samples to memory without CPU intervention, freeing cycles for the control loop. Typical use cases include small drones, e-bike controllers, appliance pumps, and HVAC damper actuators.
Recommended
LED Lighting and Dimming Control
The PIC18F14Q41T-I/SO's 16-bit PWM provides 65536-step resolution, enabling flicker-free LED dimming down to sub-1% levels required by architectural and horticultural lighting. The on-chip op-amp can amplify a photodiode or color-sensor signal for closed-loop lumen or color-temperature feedback. According to the Microchip PIC18-Q41 family overview, the integrated 8-bit DAC allows analog reference voltage generation for tunable-white LED drivers. Combined with 2.3-5.5 V operation, this part is well suited to battery-powered LED fixtures, DMX-controlled stage lighting, and smart-lamp IoT products.
Recommended
Small Appliance and White-Goods Control Boards
The PIC18F14Q41T-I/SO is a strong fit for white-goods control boards in coffee makers, induction cooktops, washing machines, and rice cookers, where it must read temperature, drive TRIACs or MOSFETs, run a UI via PWM backlight, and communicate over UART. The on-chip op-amp can amplify thermocouple or NTC signals directly, the 12-bit ADCC handles set-point sensing, and the 16-bit PWM drives heating elements or motor phases. According to the Microchip datasheet, the wide 2.3-5.5 V supply range tolerates rectified mains-rail drops during TRIAC commutation events.
Recommended
Industrial Sensor Transmitters (4-20 mA / 0-10 V)
The PIC18F14Q41T-I/SO integrates the analog and digital peripherals needed for a 4-20 mA or 0-10 V industrial sensor transmitter in a single 20-pin SOIC. Its on-chip op-amp drives the current-loop or voltage-output stage, the 12-bit ADCC digitizes the sensor input, and DMA handles the periodic sample stream. The 2.3-5.5 V supply range supports both loop-powered (2-wire) and 3-wire topologies. According to the Microchip datasheet, the industrial -40C to +85C temperature grade ('I' suffix) covers factory-floor deployments without requiring a separate ruggedized part.
Recommended
IoT Edge Nodes with UART/SPI/I2C Sensor Hubs
The PIC18F14Q41T-I/SO acts as a low-power sensor hub for battery-powered IoT edge nodes that aggregate temperature, humidity, and motion data over I2C or SPI and forward it via UART to a host MCU or radio. Its DMA controller moves sensor data without waking the CPU, the 12-bit ADCC supports analog sensors in parallel, and PPS lets the designer route peripherals to any pad to ease PCB layout. According to the Microchip datasheet, the PIC18-Q41 family is positioned by Microchip for exactly this kind of low-power, mixed-signal edge node design.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F14Q41T-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F14Q41-I/SO | PIC18F14Q41-E/SO | PIC18F14K50T-I/SO | PIC18F14K22T-I/SO | PIC18F1320T-I/SO |
|---|---|---|---|---|---|---|
| Package | 20-SOIC | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 48 MHz | 64 MHz | 40 MHz |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 8 KB | 8 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 512 B | 256 B |
| ADC | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 10-bit ADC | 10-bit ADC | 10-bit ADC |
| On-Chip Op-Amp | Yes | Yes | Yes | No | No | No |
| DAC | 8-bit DAC | 8-bit DAC | 8-bit DAC | No | No | No |
| DMA / PPS | Yes / Yes | Yes / Yes | Yes / Yes | No / No | No / No | No / No |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.7 V to 5.5 V | 2.3 V to 5.5 V | 2.0 V to 5.5 V |
Key Differentiators
- Integrated 12-bit ADCC with computation, on-chip op-amp, and 8-bit DAC in a 20-SOIC MCU (vs PIC18F14K50T-I/SO)
- Modern Q41 peripheral set vs older K22 architecture (vs PIC18F14K22T-I/SO)
- Same 20-SOIC footprint with extended-temperature option (vs PIC18F14Q41-E/SO)
Design Notes
The PIC18F14Q41T-I/SO operates from 2.3 V to 5.5 V, allowing direct connection to a single Li-ion cell or a 3.3 V/5 V regulated rail. Place a 100 nF decoupling capacitor as close as possible to the VDD pin and a 10 uF bulk capacitor at the board-level supply input. According to the Microchip datasheet, an internal voltage regulator provides the core 1.8 V; no external core-decoupling capacitor is required beyond the VDD bypass.
Use Peripheral Pin Select (PPS) to route UART, SPI, I2C, and PWM outputs to convenient pads and avoid PCB trace crossings. According to the Microchip PIC18-Q41 family overview, the on-chip op-amp output should be routed with a short, guarded trace to the ADC input channel and kept away from switching PWM traces to minimize coupled noise. A ground pour on the top layer under the analog section further reduces pickup.
Do not confuse the PIC18F14Q41 (this part) with the PIC18F14Q40, PIC18F14K50, or PIC18F14K22 families: the Q40 lacks the 8-bit DAC and on-chip op-amp, while the K-series devices lack DMA, PPS, and the 12-bit ADCC. Using the wrong family in firmware will result in undefined-register reads and locked I/O pins. Always verify the device ID word at startup via the DEVICE_ID register before initializing peripherals.
When using the on-chip op-amp to drive the ADC, configure the op-amp in unity-gain buffer mode with the output internally routed to the ADCC input channel to avoid PCB-level noise pickup. According to the Microchip datasheet, the ADCC's computation features (averaging, oversampling, and threshold comparisons) should be enabled to improve effective resolution beyond the native 12 bits; enabling 32x oversampling yields approximately 14-bit effective resolution at the cost of conversion time.
Compliance Information
RoHS and REACH compliant per Microchip product page. The 'I' suffix denotes industrial -40C to +85C temperature grade; AEC-Q100 qualification is not standard on this part.
