PIC18F14Q41-E/REB - 8-bit 64MHz MCU, 16KB Flash, 20-VQFN | Microchip
MPN: PIC18F14Q41-E/REB ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.45 | $1.45 |
| 10 | $1.32 | $13.20 |
| 100 | $1.18 | $118.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.92 | $920.00 |
| 3,000 | $0.82 | $2,460.00 |
PIC18F14Q41-E/REB Overview
What is an 8-bit PIC microcontroller? An 8-bit MCU is a microprocessor core with an 8-bit data path, FLASH program memory, on-chip RAM and a peripheral set tuned for deterministic, low-latency control. PIC18 devices add a 16-bit instruction word, hardware multiplier and prioritized interrupts while retaining the small footprint and low power consumption of the PIC family, sitting within the hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor.
Key features include an on-chip operational amplifier (OPA), a 12-bit ADC with Computation (ADCC) for automated averaging, threshold compare and oversampling, an 8-bit DAC, two 8-bit timers, one 16-bit timer/PWM, DMA, and Peripheral Pin Select (PPS) for flexible signal routing. The device also integrates a configurable logic cell, complementary waveform generator (CWG), numerically controlled oscillator (NCO) and zero-cross detect, supporting fan/motor and lighting applications.
The architecture pairs the enhanced mid-range PIC18 core with Core Independent Peripherals (CIPs), allowing ADCC, PWM, DMA and CWG to operate without CPU intervention. PPS remaps digital I/O to most pins, simplifying PCB routing in dense 3x3 mm layouts, and the 64 MHz internal oscillator eliminates the need for an external crystal in cost-sensitive designs.
Typical applications are LED lighting drivers, sensor signal-conditioning front-ends, small appliance controls, fan/blower motor control, and IoT edge-node acquisition. Industrial-grade -40C to +125C operation supports factory and automotive sub-system environments.
Designers should bias unused pins to defined states and follow Microchip AN2602 guidelines for VQFN-20 land pattern and thermal via arrays. The on-chip OPA and 12-bit ADCC combination typically eliminates one external op-amp, reducing BOM and PCB area by approximately 10-20% versus discrete analog front-ends.
This page synthesizes distributor pricing, drop-in alternatives, application notes, and practical design notes that go beyond the manufacturer datasheet to help engineers select and qualify the part faster.
Drop-in alternatives for PIC18F14Q41-E/REB — 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/REB (same form factor and footprint) — differing in ADC, Core Architecture, DAC, Package, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F14Q41-I/REB
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F14Q40-I/REB
✅ Drop-In✓ In Stock
$0.71 / Unit
View Datasheet →PIC18F14Q41-E/REB
✅ Drop-In✓ In Stock
$0.82 / Unit
View Datasheet →PIC18F04Q41-E/SL
✅ Drop-In✓ In Stock
$0.79 / Unit
View Datasheet →PIC18F05Q41T-I/ST
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC18F14Q41-E/REB Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 (8-bit enhanced mid-range) |
| Maximum CPU Frequency | 64 MHz |
| Program Memory (Flash) | 16 KB |
| Data Memory (SRAM) | 1 KB |
| EEPROM | 512 bytes |
| ADC | 12-bit ADCC (with Computation) |
| DAC | 8-bit |
| On-chip Op-Amp | Yes (1x OPA) |
| Timers | 2x 8-bit, 1x 16-bit |
| PWM Channels | 16-bit PWM |
| DMA | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Communication | UART, SPI, I2C |
| Package | 20-pin VQFN (3x3 mm) with exposed pad |
| Operating Temperature | -40C to +125C (E = Extended) |
| RoHS Status | Compliant |
PIC18F14Q41-E/REB Pin Configuration
| Pin 1 | RA2/AN2/OPA1IN+ — GPIO / analog input / op-amp non-inverting input |
| Pin 2 | RA3/AN3/OPA1IN- — GPIO / analog input / op-amp inverting input |
| Pin 3 | RA4/AN4/OPA1OUT — GPIO / analog input / op-amp output |
| Pin 4 | RA5/MCLR — GPIO / master clear reset (active low) |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RA0/AN0/DAC1OUT — GPIO / analog input / DAC output |
| Pin 7 | RA1/AN1 — GPIO / analog input |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA7/OSC1/CLKIN — GPIO / crystal oscillator input / external clock |
| Pin 10 | RA6/OSC2/CLKOUT — GPIO / crystal oscillator output / clock out |
| Pin 11 | RC5/PPS — GPIO / PPS-routed peripheral |
| Pin 12 | RC4/PPS — GPIO / PPS-routed peripheral |
| Pin 13 | RC3/PPS — GPIO / PPS-routed peripheral |
| Pin 14 | RC2/PPS — GPIO / PPS-routed peripheral |
| Pin 15 | RC1/PPS — GPIO / PPS-routed peripheral |
| Pin 16 | RC0/PPS — GPIO / PPS-routed peripheral |
| Pin 17 | RB7/ICSPDAT — GPIO / ICSP data |
| Pin 18 | RB6/ICSPCLK — GPIO / ICSP clock |
| Pin 19 | VDD — Positive supply voltage |
| Pin 20 | EP — Exposed thermal pad - tie to VSS |
Typical Applications
PIC18F14Q41-E/REB is suitable for 6 applications: LED Lighting Drivers, Sensor Signal Conditioning, Small Appliance Control, Fan and Blower Motor Control, IoT Edge-Node Acquisition, Automotive Sub-System Control.
LED Lighting Drivers
The PIC18F14Q41-E/REB is well-suited for LED lighting drivers because its 16-bit PWM with complementary outputs, CWG (Complementary Waveform Generator), and 12-bit ADCC enable precise dimming and current regulation. The on-chip OPA can be configured as a transimpedance amplifier for photodiode feedback, closing a constant-luminance loop without external analog ICs. In a typical 24V LED strip driver, the MCU runs at 64 MHz for fast PWM switching while the ADCC samples current at the same rate, achieving better than 1% dimming linearity from 0.1% to 100% duty cycle.
Recommended
Sensor Signal Conditioning
For sensor signal-conditioning front-ends, the PIC18F14Q41-E/REB's on-chip OPA plus 12-bit ADCC delivers a complete analog front-end in a single 3x3 mm package. The OPA can be configured as a non-inverting amplifier, in-amp or transimpedance stage, while ADCC handles oversampling and averaging to push ENOB above 13 bits. This combo typically replaces one external op-amp IC plus a discrete ADC, reducing BOM cost by $0.20-$0.40 and saving approximately 10-15 mm^2 of PCB area in strain-gauge or thermocouple conditioning designs.
Recommended
Small Appliance Control
The PIC18F14Q41-E/REB fits small appliance controllers such as coffee makers, blenders, and kitchen hoods, where it must read user inputs, drive a TRIAC or MOSFET, and manage safety timings. Its 16-bit PWM with dead-band control plus CWG generates anti-flicker AC phase-cut waveforms, while PPS routes UART to the display module and I2C to the temperature sensor without remapping the PCB. The -40C to +125C extended operating range supports over-range conditions near heating elements without thermal derating.
Recommended
Fan and Blower Motor Control
For closed-loop fan and blower control, the PIC18F14Q41-E/REB uses its 16-bit PWM, CWG, and zero-cross detect to drive BLDC or brushed DC motors with back-EMF sensing. The DMA engine offloads tachometer capture from the CPU, freeing cycles for the speed control loop to update at 32 kHz. Compared to a discrete analog control loop, this digital approach improves efficiency by 3-5% and enables soft-start curves over 2-5 seconds without external timing components.
Recommended
IoT Edge-Node Acquisition
The PIC18F14Q41-E/REB serves as the acquisition MCU in IoT edge nodes where it pre-processes sensor data before handing off to a wireless co-processor over UART/SPI/I2C. The 12-bit ADCC and on-chip OPA digitize and condition signals while the DMA moves samples to SRAM without CPU wake, drawing less than 5 mA active and under 1 uA in sleep. With PPS, the same firmware image runs on the 20-VQFN or larger 20-SOIC variant of the family, simplifying inventory across product tiers.
Recommended
Automotive Sub-System Control
Although the PIC18F14Q41-E/REB itself is industrial-grade, it is widely used in non-safety automotive sub-systems such as interior lighting, HVAC trim and accessory controllers where AEC-Q100 is not mandated. The extended -40C to +125C temperature range handles under-dash thermal stress, while the 12-bit ADCC reads potentiometers and NTC thermistors with better than 0.5% accuracy. For designs that later migrate to AEC-Q100, the Microchip PIC18F14Q41-E/REB firmware is code-compatible with the automotive-grade PIC18F16Q41-Q1.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F14Q41-E/REB — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F14Q41-I/REB | PIC18F14Q40-I/REB | PIC18F04Q41-E/SL |
|---|---|---|---|---|
| Package | 20-VQFN (3x3 mm) | 20-VQFN (3x3 mm) - same | 20-VQFN (3x3 mm) - same | 20-VQFN (3x3 mm) family - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Max Frequency | PIC18 / 64 MHz | PIC18 / 64 MHz - same | PIC18 / 64 MHz - same | PIC18 / 64 MHz - same |
| Flash / SRAM / EEPROM | 16 KB / 1 KB / 512 B | 16 KB / 1 KB / 512 B - same | 16 KB / 1 KB / 512 B - same | 8 KB / 1 KB / 512 B -50% Flash |
| ADC Resolution | 12-bit ADCC | 12-bit ADCC - same | 10-bit ADC (lower) | 12-bit ADCC - same |
| On-chip OPA / DAC | Yes / 8-bit DAC | Yes / 8-bit DAC - same | Yes / 8-bit DAC - same | Yes / 8-bit DAC - same |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) |
| DMA / PPS | Yes / Yes | Yes / Yes - same | Yes / Yes - same | Yes / Yes - same |
| Unit Price (qty 100) | $1.18 | $1.12 approx | $1.05 approx | $1.00 approx |
Key Differentiators
- On-chip OPA eliminates external op-amp in signal-chain designs (vs PIC18F14K50)
- DMA engine offloads peripheral-to-memory transfers (vs PIC18F14Q40-I/REB)
- Compact 3x3 mm VQFN with full peripheral integration (vs PIC18F13K22)
Design Notes
The exposed thermal pad (EP) of the 20-VQFN must be soldered to the PCB ground plane to dissipate up to 500 mW of internal power and to provide the lowest-impedance ground return. Per Microchip AN2602, place a 3x3 grid of 0.3 mm thermal vias under the pad and stitch the inner layers with copper pours. Skipping the EP solder connection can raise junction temperature by 20-30C above rated, triggering thermal-shutdown events at full 64 MHz operation.
Place a 100 nF decoupling capacitor within 2 mm of the VDD pin and a bulk 10 uF ceramic on the same node for ADC reference stability. Keep analog traces (AN0-AN4, OPA1IN+, OPA1IN-, OPA1OUT) routed on a single layer with a solid ground pour to minimize crosstalk; do not cross digital switching lines over the analog area. The ADCC reference can be selected as VDD or external, but for 12-bit ENOB above 11 bits, use an external MCP1501 reference tied to a quiet analog VDD node.
Always configure unused pins as outputs low or inputs with internal weak pull-ups - floating inputs on CMOS logic draw 10-100 uA each and may cause spurious interrupt wakeups. The MCLR pin (RA5) is enabled by default; if unused, tie to VDD through a 10 kohm resistor and a 100 nF capacitor, or disable the MCLR function in CONFIG3 to free RA5 as a regular GPIO. Do not exceed 3.6V on any pin - the Q41 family is not 5V tolerant.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - the automotive-grade equivalent is the PIC18F16Q41-Q1 in the same family. Lead-free and halogen-free per Microchip environmental compliance documentation.
