PIC18F06Q41-E/SL - 64KB Flash 8-bit MCU, 14-SOIC | Microchip
MPN: PIC18F06Q41-E/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.42 | $1.42 |
| 10 | $1.3 | $13.00 |
| 100 | $1.14 | $114.00 |
| 500 | $1.02 | $510.00 |
| 1,000 | $0.92 | $920.00 |
PIC18F06Q41-E/SL Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), non-volatile storage (EEPROM), and a rich set of peripherals (ADC, timers, communication ports, PWMs) onto one package. Within the MCU hierarchy, the PIC18F06Q41 belongs to the 8-bit microcontroller class (vs. 16-bit dsPIC or 32-bit ARM Cortex-M0/M4), which prioritizes deterministic real-time response, low cost, and ease of programming over raw throughput. The PIC18-Q41 family specifically layers analog-domain features (12-bit ADCC, on-chip op-amp, dual 8-bit DACs) on top of the classic PIC18 RISC core, making it a superset of the broader PIC microcontroller line.
Key features of the PIC18F06Q41-E/SL include 64KB self-programmable Flash, 4KB SRAM, 512B EEPROM, a 64MHz internal oscillator, a 12-bit ADC with Computation supporting capacitive voltage divider (CVD), two 8-bit DACs, an on-chip op-amp, four 16-bit PWMs, multiple communication peripherals (UART, SPI, I2C), and up to 12 I/O pins in this 14-pin SOIC variant. The integrated op-amp enables small-signal conditioning without external analog components, while the ADCC automates averaging, oversampling, and threshold comparison to offload the CPU.
Technically, the PIC18F06Q41 uses Microchip's enhanced mid-range 8-bit RISC core with a 16-bit instruction word, single-cycle execution for most instructions, and a hardware multiplier. The device supports wide operating voltages from 1.8V to 5.5V, multiple clock sources (internal 64MHz HFINTOSC, external crystal, and low-power LFINTOSC), and CIP (Core Independent Peripherals) that allow tasks such as signal generation, conversion, and timing to run without CPU intervention - critical for low-power sensor nodes.
Typical applications include capacitive touch sensing, sensor signal conditioning, LED lighting control, battery-powered IoT end nodes, small motor and fan control, and medical or industrial sensor front-ends. The high level of analog integration is particularly valuable in space-constrained designs where external op-amps and ADCs would push BOM cost and PCB area beyond budget.
When designing with this device, plan pin allocation carefully because the 14-SOIC variant exposes only 12 I/O pins; for designs requiring more I/O, consider the 20-pin SOIC/SSOP variant (PIC18F16Q41). Also budget for proper decoupling (100nF plus 1uF) close to VDD/VSS, and verify the ADC reference voltage against your sensor output range to avoid gain errors.
This page synthesizes distributor pricing, parametric alternatives, and design considerations for the PIC18F06Q41-E/SL that are not collected in any single manufacturer document, helping procurement teams and design engineers evaluate the part with maximum context.
Drop-in alternatives for PIC18F06Q41-E/SL — 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 PIC18F06Q41-E/SL (same form factor and footprint) — differing in Operating Temperature, PWM, Package, Program Memory (Flash), ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F06Q41-I/SL
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC18F06Q41T-I/SL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.5186 / Unit
View Datasheet →PIC18F05Q41-E/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F06Q40-E/SL
✅ Drop-In✓ In Stock
$0.55 / Unit
View Datasheet →PIC18F04Q41-E/SL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.79 / Unit
View Datasheet →PIC18F06Q41-E/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 8-bit RISC |
| Program Memory (Flash) | 64 KB |
| Data Memory (SRAM) | 4 KB |
| EEPROM | 512 B |
| Maximum CPU Frequency | 64 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| DAC | 2 x 8-bit DAC |
| Operational Amplifier | 1 x on-chip op-amp |
| PWM | 4 x 16-bit PWM |
| I/O Pins | 12 (in 14-SOIC package) |
| Package | 14-SOIC (SL) 3.9 mm |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +125C (E suffix, extended) |
| Communication Peripherals | UART, SPI, I2C |
| RoHS Status | Compliant |
PIC18F06Q41-E/SL Pin Configuration
| Pin 1 | RA5 — Bidirectional I/O / ADC input |
| Pin 2 | RA4 — Bidirectional I/O / ADC input |
| Pin 3 | RA3 — Bidirectional I/O / ADC input |
| Pin 4 | RC0 — Bidirectional I/O / DAC output |
| Pin 5 | RC1 — Bidirectional I/O / DAC output |
| Pin 6 | RC2 — Bidirectional I/O |
| Pin 7 | RC3 — Bidirectional I/O |
| Pin 8 | RC4 — Bidirectional I/O |
| Pin 9 | RC5 — Bidirectional I/O |
| Pin 10 | VSS — Ground reference |
| Pin 11 | VDD — Positive supply voltage (1.8V to 5.5V) |
| Pin 12 | RA2 — Bidirectional I/O / ADC input |
| Pin 13 | RA1 — Bidirectional I/O / ADC input / ICSPDAT |
| Pin 14 | RA0 — Bidirectional I/O / ADC input / ICSPCLK |
Typical Applications
PIC18F06Q41-E/SL is suitable for 6 applications: Capacitive Touch Sensing, Sensor Signal Conditioning, LED Lighting Control, Battery-Powered IoT End Node, Small Motor and Fan Control, Medical and Industrial Sensor Front-End.
Capacitive Touch Sensing
The PIC18F06Q41-E/SL is purpose-built for capacitive touch user interfaces because its 12-bit ADC with Computation (ADCC) automates Capacitive Voltage Divider (CVD) measurements, removing the CPU from the scan loop and enabling ultra-low standby current. With the on-chip op-amp providing gain for low-C sensors and the configurable logic cell handling pattern sequencing, a typical 12-key touch panel can run from a single MCU without external analog components. The 64KB Flash comfortably stores advanced touch algorithms (such as Microchip's mTouch reference library) while the 4KB RAM supports per-channel averaging buffers. The 14-SOIC package fits inside slim-panel designs for appliances, consumer electronics, and industrial HMI.
Recommended
Sensor Signal Conditioning
The PIC18F06Q41-E/SL integrates a 12-bit ADCC and an on-chip operational amplifier, allowing engineers to condition signals from thermistors, photodiodes, strain gauges, and pH/conductivity probes without external op-amps. The on-chip op-amp can be configured as a transimpedance amplifier for photodiodes or a non-inverting buffer for thermocouples, while the dual 8-bit DACs drive excitation sources or bias networks for bridge sensors. The 64 MHz CPU runs calibration routines in real time and the 512B EEPROM stores per-unit calibration constants. The wide 1.8V to 5.5V supply range allows direct connection to single-cell Li-Ion or 3.3V industrial rails, and the 14-SOIC footprint fits inside tight sensor probe housings.
Recommended
LED Lighting Control
The PIC18F06Q41-E/SL's four 16-bit PWM channels with complementary outputs and configurable dead-band make it a strong fit for multi-channel LED color-mixing or flicker-free dimming applications. The 64 MHz CPU supports Microchip's DFC (Digital Frequency Conversion) and 16-bit PWM dithering for sub-LSB dimming steps, and the ADCC monitors LED current/voltage through shunt resistors to provide closed-loop brightness control. The 64KB Flash holds advanced color-temperature algorithms and the 4KB RAM runs effect sequences. The 14-SOIC package fits inside LED driver PCBs and the extended -40C to +125C temperature grade handles hot fixture environments.
Recommended
Battery-Powered IoT End Node
The PIC18F06Q41-E/SL is well suited for coin-cell or 2xAA battery-powered IoT nodes thanks to its low-power sleep modes, 1.8V minimum supply voltage, and CIP peripherals (ADC, op-amp, timers) that wake the CPU only when meaningful events occur. The integrated op-amp front-end directly digitizes sensor signals while the ADCC runs in scan-and-average mode with DMA-like CIP behavior, keeping average current draw below 5 uA in many duty-cycled applications. The 64KB Flash accommodates OTA-friendly bootloader and application stacks, while the 4KB SRAM supports TLS-lite IoT frameworks. The 14-SOIC package keeps the design compact for wearable and remote-sensor form factors.
Recommended
Small Motor and Fan Control
The PIC18F06Q41-E/SL's four 16-bit PWMs with complementary outputs and programmable dead-time are well matched to small BLDC, brushed-DC, or PWM-controlled fan drives. The CIP PWM can shut down automatically on overcurrent conditions via the on-chip comparator, while the ADCC samples back-EMF or current shunt for closed-loop speed control. The 64 MHz CPU executes field-oriented control (FOC) lite algorithms or basic PID loops with cycle periods well under 100 us, and the 64KB Flash holds motor tuning parameters and the 4KB RAM supports real-time control variables. The 14-SOIC package fits inside fan housings and compact motor control boards.
Recommended
Medical and Industrial Sensor Front-End
The PIC18F06Q41-E/SL's extended -40C to +125C operating range, integrated 12-bit ADCC, on-chip op-amp, and dual 8-bit DACs make it appropriate for medical monitors (pulse oximetry, glucose meters) and industrial sensor front-ends (gas detection, process control). The on-chip op-amp conditions small signals from electrochemical cells or photo detectors without external analog ICs, while the ADCC performs oversampling to improve effective resolution beyond 12 bits. The 64KB Flash stores calibration curves and the 512B EEPROM holds patient or process IDs. The 14-SOIC package keeps the analog front-end compact and the wide supply range (1.8V to 5.5V) allows direct connection to 3.3V or 5V rails common in medical and industrial designs.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F06Q41-E/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F06Q41-I/SL | PIC18F06Q41T-I/SL | PIC18F05Q41-E/SL | PIC18F06Q40-E/SL | PIC18F04Q41-E/SL |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC (SL) | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same |
| Flash Memory | 64 KB | 64 KB | 64 KB | 32 KB | 64 KB | 16 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| On-chip Op-Amp | Yes | Yes | Yes | Yes | No | Yes |
| 12-bit ADCC with CVD | Yes | Yes | Yes | Yes | No | Yes |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
Key Differentiators
- On-chip operational amplifier eliminates external analog IC (vs PIC18F06Q40-E/SL)
- ADCC with CVD support for capacitive touch (vs PIC18F06Q40-E/SL)
- Extended -40C to +125C temperature grade (vs PIC18F06Q41-I/SL)
- Dual 8-bit DACs on-chip (vs PIC18F05Q41-E/SL)
Design Notes
Place a 100 nF ceramic decoupling capacitor as close as possible to the VDD pin (pin 11), with a 1 uF to 10 uF bulk capacitor nearby on the VDD rail. For sleep-mode operation, an additional 0.1 uF cap on the VCORE pin (where present) reduces wake-up transients. Microchip's PIC18-Q41 family reference schematics recommend a ground-return via on VSS directly to the PCB ground plane rather than a trace, to minimize digital switching noise coupling into analog measurements.
When using the on-chip op-amp or 12-bit ADCC, route analog signals away from PWM output traces and clock lines. Use a guarded analog ground island if possible, and keep the analog reference (VDDA or external VREF+) traces short. Estimated: at 64 MHz CPU clock with PWMs toggling, an isolated analog island typically reduces ADC noise pickup by 6-10 dB relative to a single-ground layout. The ADCC oversampling and averaging features can further improve SNR by 3-4 bits at the cost of conversion rate.
The 14-SOIC footprint has 0.05 inch (1.27 mm) pitch, requiring careful solder-pad design for reliable hand-soldering. Pull-ups (typically 4.7 kohm to 10 kohm) on I2C SDA/SCL lines and the MCLR pin are mandatory for reliable operation; do not leave MCLR floating because spurious resets can corrupt Flash writes. For production boards, add an ESD protection array (such as the USB6xx series) on user-accessible I/O pins that may be touched during product use.
A common mistake is failing to read the configuration bits before programming - the PIC18F06Q41-E/SL defaults to using the internal HFINTOSC at a frequency that may differ from the 64 MHz maximum, so explicitly setting the OSCCON register and configuration bits in code avoids confusing timing issues. Another pitfall: the 12-bit ADC reference voltage must be tied to a stable source (VDDA or external VREF+); tying it to a noisy rail reduces effective ADC resolution. Estimated: ADCC readings on a fluctuating 3.3V rail can show 4-8 LSB of jitter without proper decoupling and reference bypassing.
Compliance Information
RoHS and lead-free status confirmed by Microchip product page. The -E suffix is Microchip's extended temperature grade (-40C to +125C), not the AEC-Q100 automotive qualification; automotive applications should consult Microchip for Q41 AEC-Q100 qualified variants. REACH compliance is standard for Microchip products but specific certificate not in the verified data.
