PIC18F14Q41-I/SS - 8-bit 64MHz 16KB Flash MCU | Microchip
MPN: PIC18F14Q41-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.65 | $16.50 |
| 100 | $1.45 | $145.00 |
| 500 | $1.28 | $640.00 |
| 1,000 | $1.12 | $1,120.00 |
| 3,000 | $0.98 | $2,940.00 |
PIC18F14Q41-I/SS Overview
A microcontroller (MCU) is an integrated circuit that combines a CPU, program and data memory, and configurable peripherals on one die. The 8-bit MCU class prioritises deterministic interrupt latency, low power consumption, and predictable I/O behaviour over raw computational throughput, and remains dominant in cost-sensitive embedded designs where the application fits within the address space. PIC18 devices extend the classic PIC16 instruction set with linear addressing and a larger register file, retaining the RISC-style single-cycle instruction execution that has defined the PIC architecture for decades. Within the broader power-management and embedded hierarchy, PIC18F14Q41 belongs to the microcontrollers segment, with deep ties to the wider Microchip 8-bit and 16-bit dsPIC ecosystem.
Key features include up to 64 MHz operation from a 1.8 V to 5.5 V supply, on-chip op-amp and zero-cross detector, multiple communication interfaces (UART, SPI, I2C), up to 18 I/O pins, and integrated Core Independent Peripherals (CIPs) that offload timing-critical tasks from the CPU. The device supports in-circuit serial programming (ICSP) via high-voltage or low-voltage interfaces, enabling firmware updates in the field without package removal.
Architecturally, the PIC18F14Q41 uses a Harvard architecture with separate program and data buses, a hardware multiplier, and an 8-level deep hardware stack. The ADC2 peripheral performs automated averaging, threshold comparisons, and burst-mode sampling, reducing firmware overhead for sensor acquisition. The integrated op-amp can be routed to the ADC input or comparator, eliminating an external amplifier stage in many sensor-interface designs.
Typical applications include industrial sensor conditioning, building automation, lighting control, low-cost motor control, and battery-powered IoT edge nodes. The wide 1.8 V to 5.5 V supply range supports direct connection to single-cell Li-Ion or 3.3 V system rails.
When designing with this device, allocate decoupling capacitance close to VDD and AVSS pins, route analog signals away from switching nodes, and follow Microchip's Q41 family layout guidelines to minimise ADC noise pickup.
This page synthesises distributor pricing, drop-in same-package alternatives, and practical design notes not aggregated on the manufacturer product page or individual distributor listings.
Drop-in alternatives for PIC18F14Q41-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 PIC18F14Q41-I/SS (same form factor and footprint) — differing in ADC, Package, Operating Temperature, PWM, DAC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F14Q40-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F16Q41-I/SS
✅ Drop-In✓ In Stock
$1.22 / Unit
View Datasheet →PIC18F04Q41-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC18F05Q41-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F14Q41-I/SS Maximum Ratings & Electrical Characteristics
| Product Family | PIC18-Q41 |
| Core | PIC18 8-bit RISC |
| CPU Architecture | Harvard, 8-bit data bus |
| Maximum CPU Frequency | 64 MHz |
| Program Memory (Flash) | 16 KB (16K x 8) |
| Data SRAM | 1 KB |
| Data EEPROM | 512 bytes |
| Operating Voltage (VDD) | 1.8 V to 5.5 V |
| Operating Temperature (I grade) | -40 C to +85 C |
| ADC | 12-bit ADC2 with Computation |
| DAC | 2 x 8-bit DAC |
| PWM | 16-bit PWM and 10-bit PWM |
| On-chip Operational Amplifier | Yes |
| Comparators | Yes |
| I/O Pins (max) | 18 |
| Package | 20-pin SSOP (208 mil) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Programming Interface | ICSP (HV/LV) |
PIC18F14Q41-I/SS Pin Configuration
| Pin 1 | RA5 — I/O port A bit 5 / ICSPCLK |
| Pin 2 | RA4 — I/O port A bit 4 |
| Pin 3 | RA3 — I/O port A bit 3 / ICSPDAT |
| Pin 4 | RA2 — I/O port A bit 2 |
| Pin 5 | RA1 — I/O port A bit 1 |
| Pin 6 | RA0 — I/O port A bit 0 |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RA7 — I/O port A bit 7 |
| Pin 9 | RA6 — I/O port A bit 6 |
| Pin 10 | RC0 — I/O port C bit 0 |
| Pin 11 | RC1 — I/O port C bit 1 |
| Pin 12 | RC2 — I/O port C bit 2 |
| Pin 13 | RC3 — I/O port C bit 3 |
| Pin 14 | RC4 — I/O port C bit 4 |
| Pin 15 | RC5 — I/O port C bit 5 |
| Pin 16 | RC6 — I/O port C bit 6 |
| Pin 17 | RC7 — I/O port C bit 7 |
| Pin 18 | VSS — Ground reference (digital) |
| Pin 19 | VDD — Positive supply voltage (1.8 V to 5.5 V) |
| Pin 20 | AVSS — Analog ground reference |
Typical Applications
PIC18F14Q41-I/SS is suitable for 7 applications: Industrial Sensor Signal Conditioning, Building Automation and Lighting Control, Battery-Powered IoT Edge Nodes, Low-Cost BLDC / DC Motor Control, Portable Medical and Wellness Devices, Automotive Body and Comfort Electronics, Smart Home and Appliance Control Boards.
Industrial Sensor Signal Conditioning
The PIC18F14Q41-I/SS is well matched to industrial sensor conditioning because its integrated 12-bit ADC2 with computation automates averaging and threshold detection, while the on-chip op-amp eliminates an external amplifier stage for bridge and thermistor front-ends. The 1.8 V to 5.5 V VDD range tolerates 3.3 V and 5 V industrial backplanes directly. With 64 MHz CPU performance and 16-bit PWM, the MCU can drive closed-loop control loops at sub-millisecond cadence, all within the compact SSOP-20 footprint that fits alongside signal-conditioning front-ends on small sensor PCBs.
Recommended
Building Automation and Lighting Control
For building-automation backplanes and LED lighting controllers, the PIC18F14Q41-I/SS provides the 16-bit PWM resolution needed for flicker-free logarithmic dimming curves. The two integrated 8-bit DACs can drive analog set-point references, while the on-chip op-amp supports 0-10 V analog dimming interfaces. Running at 64 MHz, the MCU can service multiple DALI or 0-10 V channels simultaneously without external logic, and the SSOP-20 package is narrow enough to place next to each driver channel on a multi-channel controller board.
Recommended
Battery-Powered IoT Edge Nodes
Battery-powered wireless sensor nodes benefit from the PIC18F14Q41-I/SS's wide 1.8 V to 5.5 V supply range, which enables direct connection to single-cell Li-Ion batteries without an external boost regulator. The Core Independent Peripherals (CIPs) - including the ADC2 with computation, 16-bit PWM, and hardware comparators - allow the CPU to sleep while peripherals handle timing-critical tasks, dramatically lowering average current draw. The 512-byte EEPROM provides reliable non-volatile storage for calibration and network credentials across battery replacements.
Recommended
Low-Cost BLDC / DC Motor Control
The PIC18F14Q41-I/SS integrates a 16-bit PWM with complementary outputs and programmable dead-time, which is sufficient for driving small BLDC and brushed DC motor stages directly. The integrated op-amp can sense motor current via a shunt resistor, feeding back into the 12-bit ADC2 for closed-loop current control. With 64 MHz operation, the MCU executes field-oriented or trapezoidal commutation routines with minimal latency, and the SSOP-20 package fits easily on small motor-driver daughter boards alongside power-MOSFET drivers.
Recommended
Portable Medical and Wellness Devices
Portable medical peripherals such as pulse oximeters, thermometers, and wearable fitness bands leverage the PIC18F14Q41-I/SS's on-chip op-amp for photodiode/thermistor signal chains and the ADC2 with computation for low-noise acquisition. The 1.8 V minimum VDD extends battery life on coin cells and Li-Po packs. The PIC18-Q41 family's deterministic interrupt response and IEC 60730 class-B ready library support make this MCU a practical choice for safety-critical handheld wellness products.
Recommended
Automotive Body and Comfort Electronics
Within automotive body and comfort modules - such as HVAC blend-door actuators, seat-position controllers, and ambient lighting nodes - the PIC18F14Q41-I/SS delivers the analog integration and PWM resolution needed for compact PCB designs. The integrated op-amp simplifies thermistor and potentiometer feedback, while the 16-bit PWM drives LED strings and small DC motors smoothly. For AEC-Q100 qualified applications, Microchip's automotive-grade Q41 variants (PIC18F14Q41-E/SS family) extend the same SSOP-20 footprint with extended-temperature qualification.
Recommended
Smart Home and Appliance Control Boards
Smart-home appliances - washing machines, dishwashers, and HVAC controllers - benefit from the PIC18F14Q41-I/SS's combination of UART, SPI, and I2C interfaces for connecting to display boards, sensor hubs, and Wi-Fi co-processors. The on-chip op-amp and dual 8-bit DACs drive analog set-points for motor controllers and proportional valves. The SSOP-20 208-mil package is a practical compromise between miniaturisation and hand-reworkability, suiting both high-volume reflow assembly and field service.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F14Q41-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F14Q40-I/SS | PIC18F16Q41-I/SS | PIC18F04Q41-I/SS | PIC18F05Q41-I/SS |
|---|---|---|---|---|---|
| Package | 20-pin SSOP (208 mil) | 20-pin SSOP (208 mil) - same | 20-pin SSOP (208 mil) - same | 20-pin SSOP (208 mil) - same | 20-pin SSOP (208 mil) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Flash Memory | 16 KB | 16 KB | 32 KB (+100%) | 8 KB (-50%) | 16 KB |
| SRAM | 1 KB | 1 KB | 2 KB (+100%) | 512 B (-50%) | 1 KB |
| EEPROM | 512 bytes | 512 bytes | 512 bytes | 512 bytes | 512 bytes |
| Integrated Op-amp | Yes | No | Yes | Yes | Yes |
| ADC Resolution | 12-bit ADC2 | 12-bit (no ADC2 compute) | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
Key Differentiators
- On-chip op-amp eliminates external amplifier stage (vs PIC18F14Q40-I/SS)
- Twice the program memory of entry-level Q41 variants (vs PIC18F04Q41-I/SS)
- 16-bit PWM resolution for precision control (vs PIC18F14Q40-I/SS)
Design Notes
Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of the VDD pin, and add a bulk 4.7 uF to 10 uF tantalum or ceramic capacitor on the same rail. For battery-powered designs, leverage the PIC18F14Q41's IDLE and DOZE modes together with Core Independent Peripherals to drop average current below 10 uA while keeping the ADC2 awake for periodic sensor reads.
Route analog signals (ANx, op-amp inputs/outputs) away from PWM outputs and digital switching traces on separate layers where possible. Keep the AVSS pin tied to a clean ground island that joins VSS at a single point under the MCU. Place the ICSP connector near the ICSPDAT/ICSPCLK pins to keep programming cables stable during in-circuit firmware updates.
The PIC18F14Q41 configuration words control oscillator mode, watchdog timer, brown-out voltage, and code protection - leaving these at defaults can prevent the MCU from booting in your application. Always verify configuration bits in code (or via MPLAB X project properties) before programming. The ADC2 reference voltage must be sourced from a stable rail; using VDD as VREF couples supply noise into conversions.
Compliance Information
RoHS compliant per Microchip product page. Standard PIC18F14Q41-I/SS is not AEC-Q100 qualified; Microchip offers automotive-grade Q41 variants with /E temperature suffix for AEC-Q100 applications.
