PIC18F16Q41-I/P - 8-bit 64MHz MCU, 64KB Flash | Microchip
MPN: PIC18F16Q41-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 10 | $2.66 | $26.60 |
| 100 | $2.37 | $237.00 |
| 500 | $2.13 | $1,065.00 |
| 1,000 | $1.9 | $1,900.00 |
PIC18F16Q41-I/P Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), data memory (SRAM/EEPROM), and peripherals such as ADCs, timers, and communication interfaces. The PIC18 architecture is a Harvard RISC family, with each instruction executing in one oscillator cycle. The PIC18-Q41 sub-family sits within Microchip's broad 8-bit portfolio, optimized for applications that demand integrated analog signal conditioning without external op-amps or ADCs. Hypernyms: microcontroller -> embedded controller -> semiconductor IC.
Key features include a 12-bit ADCC supporting capacitive voltage divider (CVD) touch sensing, averaging, filtering, oversampling, and threshold comparison; two 8-bit DAC modules for analog output; an integrated op-amp for signal conditioning; up to 16 KB of core-independent peripherals; DMA for offloading data movement; 16-bit PWM with multiple complementary outputs; and Peripheral Pin Select (PPS) for flexible I/O mapping. The device also supports UART, SPI, and I2C communication, along with an 8-bit parallel port on select variants.
Architecturally, the PIC18F16Q41 leverages an enhanced mid-range core with a hardware multiplier, multiply-accumulate (MAC) instructions, and configurable instruction cache, enabling deterministic real-time response at 64MHz. The 12-bit ADCC extends basic ADC functionality with automated post-processing, allowing touch and sensor measurements to run without CPU intervention. This combination reduces firmware complexity while improving measurement repeatability.
Typical applications include capacitive touch user interfaces, sensor signal conditioning nodes, LED lighting control, small motor control loops, battery-powered IoT end nodes, and consumer appliance front panels. Its wide operating voltage range (1.8V to 5.5V) makes it compatible with both lithium-cell and 5V regulated rails.
When designing with this device, allocate one of the available PWM channels for any switching power stage and use PPS to reassign peripheral functions if board layout requires. A 0.1uF decoupling capacitor placed within 5mm of each VDD pin is mandatory for ADC accuracy.
This page synthesizes distributor pricing, drop-in alternatives within the PIC18-Q41 family, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC18F16Q41-I/P — 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 PIC18F16Q41-I/P (same form factor and footprint) — differing in Program Memory (Flash), ADC, Package, DAC, PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F15Q41-I/P
✅ Drop-In✓ In Stock
$1.35 / Unit
View Datasheet →PIC18F16Q40-I/P
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC18F14Q41-I/P
✅ Drop-In✓ In Stock
$1.32 / Unit
View Datasheet →PIC18F13K22-I/P
✅ Drop-In✓ In Stock
$1.21 / Unit
View Datasheet →PIC18F16Q41-I/P Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 (8-bit Harvard RISC) |
| Maximum CPU Frequency | 64 MHz |
| Program Memory (Flash) | 64 KB |
| Data SRAM | 4 KB |
| Data EEPROM | 512 bytes |
| Supply Voltage Range | 1.8 V to 5.5 V |
| ADC | 12-bit ADC with Computation (ADCC) |
| DAC | Two 8-bit DAC modules |
| Operational Amplifier | 1 on-chip op-amp |
| PWM | 16-bit PWM with multiple outputs |
| DMA | Yes (Direct Memory Access) |
| Peripheral Pin Select (PPS) | Yes |
| Communication Interfaces | UART, SPI, I2C |
| I/O Pins | 17 (typical, varies by package) |
| Package | 20-pin PDIP (P) |
| Mounting Type | Through-Hole (DIP) |
| Operating Temperature | -40C to +85C (industrial, -I suffix) |
| Touch Sensing | Capacitive Voltage Divider (CVD) |
| RoHS Status | Compliant |
PIC18F16Q41-I/P Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active low |
| Pin 2 | RA0 — PORTA bit 0 / analog input |
| Pin 3 | RA1 — PORTA bit 1 / analog input |
| Pin 4 | RA2 — PORTA bit 2 / analog input |
| Pin 5 | RA3 — PORTA bit 3 / analog input |
| Pin 6 | RA4 — PORTA bit 4 / analog input |
| Pin 7 | RA5 — PORTA bit 5 / analog input |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA7 — PORTA bit 7 / OSC1 |
| Pin 10 | RA6 — PORTA bit 6 / OSC2 |
| Pin 11 | RC0 — PORTC bit 0 |
| Pin 12 | RC1 — PORTC bit 1 |
| Pin 13 | RC2 — PORTC bit 2 |
| Pin 14 | RC3 — PORTC bit 3 |
| Pin 15 | RC4 — PORTC bit 4 |
| Pin 16 | RC5 — PORTC bit 5 |
| Pin 17 | RC6 — PORTC bit 6 |
| Pin 18 | RC7 — PORTC bit 7 |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
Typical Applications
PIC18F16Q41-I/P is suitable for 7 applications: Capacitive Touch User Interface, Industrial Sensor Signal Conditioning, LED Lighting and Color Control, Small Motor Control Loop (BLDC / Stepper), Battery-Powered IoT Sensor Node, Consumer Appliance Front Panel, Portable Medical / Health Device.
Capacitive Touch User Interface
The PIC18F16Q41-I/P's integrated 12-bit ADCC with hardware CVD enables direct capacitive touch sensing without an external touch controller, reducing BOM and PCB area. Its 64KB Flash accommodates complex touch state machines and gesture algorithms, while DMA offloads sensor scans from the CPU for deterministic response. The on-chip op-amp is unused in this role, freeing it for sensor bias. Designers place a 0.1uF decoupling cap within 5mm of each VDD pin and use PPS to route CVD timing to any GPIO, simplifying PCB layout versus fixed-function touch ICs.
Recommended
Industrial Sensor Signal Conditioning
The PIC18F16Q41-I/P integrates a 12-bit ADCC and an on-chip op-amp that together replace an external instrumentation front-end for bridge sensors, RTDs, and thermistors. Engineers configure the op-amp as a gain stage before the ADC and rely on DMA to stream conversion results into memory without CPU stalls. The 1.8V-5.5V supply range accommodates 3.3V regulated industrial rails directly. Compared to discrete analog chains, this reduces PCB area by ~40% and improves noise immunity by keeping the analog signal path entirely on-chip.
Recommended
LED Lighting and Color Control
The PIC18F16Q41-I/P drives multi-channel LED strips with its 16-bit PWM modules supporting high-resolution dimming and color mixing. The two integrated 8-bit DACs provide analog reference outputs for current-controlled drivers, while DMA enables smooth color transitions without CPU intervention. Its 64MHz CPU speed handles DMX-512 or DALI protocol parsing in real time. The 20-pin PDIP form factor suits through-hole prototyping of custom architectural fixtures before committing to SMD designs in production.
Recommended
Small Motor Control Loop (BLDC / Stepper)
The PIC18F16Q41-I/P closes 16-bit PID loops at up to 64MHz, enabling FOC or trapezoidal commutation for small brushless DC or stepper motors. Its 16-bit PWM with complementary outputs and programmable dead-time generates center-aligned switching signals directly. The peripheral pin select (PPS) feature allows engineers to reassign PWM outputs to any GPIO to optimize PCB layout. Two on-chip op-amps sense motor current via shunt resistors, eliminating the need for an external current-sense amplifier.
Recommended
Battery-Powered IoT Sensor Node
The PIC18F16Q41-I/P supports battery-powered IoT endpoints via its wide 1.8V-5.5V supply range, low-power sleep modes, and integrated peripherals that eliminate external components. Its 64KB Flash supports LoRaWAN or BLE stack libraries while the 4KB SRAM buffers sensor packets. The op-amp conditions a battery-monitoring voltage divider before the 12-bit ADCC, giving accurate state-of-charge readings without a fuel-gauge IC. DMA and PPS further reduce average current draw by enabling autonomous peripheral operation during sleep.
Recommended
Consumer Appliance Front Panel
The PIC18F16Q41-I/P drives capacitive touch buttons, rotary encoder inputs, and segment or dot-matrix LCD displays from a single chip, replacing multiple dedicated controllers. The integrated 12-bit ADCC with CVD handles touch while 16-bit PWM dims status LEDs and buzzer tones. Its 64KB Flash runs UI state machines and fault diagnostics, while DMA keeps the display refresh running autonomously. The 20-pin PDIP package simplifies through-hole front-panel PCB layouts and breadboard prototyping.
Recommended
Portable Medical / Health Device
The PIC18F16Q41-I/P is well-suited for low-power portable medical devices such as pulse oximeters, infrared thermometers, and personal health monitors. Its integrated 12-bit ADCC and on-chip op-amp condition photodiode or thermopile signals without external analog ICs, while DMA streams conversion data into memory for DSP-style filtering. The 1.8V-5.5V supply accommodates a single lithium coin cell, and the low-power sleep modes extend battery life. Microchip's validated IEC 60730 Class B safety library supports designs requiring functional safety compliance.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F16Q41-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F15Q41-I/P | PIC18F16Q40-I/P | PIC18F14Q41-I/P | PIC18F13K22-I/P | DSPIC33FJ128MC202-I/SP |
|---|---|---|---|---|---|---|
| Package | 20-pin PDIP | 20-pin PDIP - same | 20-pin PDIP - same | 20-pin PDIP - same | 20-pin PDIP - same | 28-pin SPDIP - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB | 32 KB | 64 KB | 16 KB | 8 KB | 128 KB |
| SRAM | 4 KB | 2 KB | 4 KB | 1 KB | 512 B | 8 KB |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 40 MIPS (50 MHz) |
| Integrated Op-Amp | Yes | Yes | No | Yes | No | No |
| ADC | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 10-bit ADC | 10-bit ADC |
| Supply Voltage Range | 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 | 3.0 V to 3.6 V |
| Touch Sensing (CVD) | Yes | Yes | Yes | Yes | No | No |
Key Differentiators
- On-chip operational amplifier (vs PIC18F16Q40-I/P)
- 12-bit ADC with Computation (ADCC) (vs PIC18F13K22-I/P)
- Higher Flash density in same package (vs PIC18F15Q41-I/P)
Design Notes
Place a 0.1uF ceramic decoupling capacitor within 5mm of each VDD pin (pin 20) and a single 10uF bulk capacitor near the IC. For ADC accuracy, add a small ferrite bead or 10-ohm resistor between VDD and AVdd if separate analog supply is used. Use the internal voltage regulator mode for most designs unless low-voltage operation below 2.0V is required.
Route the MCLR line directly to a 10kohm pull-up to VDD with a 100nF cap to ground for in-circuit serial programming (ICSP). Place the ICSP connector at the board edge to simplify programming access. Keep analog signal traces short and away from PWM outputs to minimize digital coupling into the 12-bit ADCC.
Do not leave unused I/O pins floating - configure them as outputs low or inputs with pull-ups to avoid excess current draw. The PPS feature can only assign one peripheral to each pin; verify the routing map before committing PCB layout. When using the op-amp, confirm the input common-mode range is within VSS to VDD or add external biasing.
Compliance Information
RoHS and REACH compliant per Microchip product environmental compliance documentation. The PIC18F16Q41-I/P is the industrial temperature grade (-40C to +85C); automotive grade AEC-Q100 qualified variants are not part of this part number. Lead-free and halogen-free per Microchip Material Declaration.
