PIC18F16Q41-E/SS - 8-Bit MCU 64MHz 64KB Flash | Microchip
MPN: PIC18F16Q41-E/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.95 | $1.95 |
| 10 | $1.75 | $17.50 |
| 100 | $1.5 | $150.00 |
| 500 | $1.32 | $660.00 |
| 1,000 | $1.18 | $1,180.00 |
PIC18F16Q41-E/SS Overview
A PIC microcontroller is a Harvard-architecture RISC-based 8-bit MCU family widely used in embedded control. It belongs to the broader hierarchy: microcontroller -> embedded processor -> semiconductor IC. The PIC18 instruction set offers 75 instructions with a 16-bit-wide instruction word and 8-bit data path, optimized for deterministic real-time control and low-power operation.
The PIC18F16Q41 integrates advanced analog peripherals including a 12-bit ADC with Computation (ADCC) supporting Capacitive Voltage Divider (CVD) for capacitive touch sensing, two 8-bit DAC modules, an on-chip operational amplifier, and 16-bit PWM. The -E/SS suffix denotes the Extended (-40C to +125C) temperature grade in a 20-pin SSOP package. Core peripherals include multiple communication interfaces such as UART, SPI, and I2C for connectivity to sensors and actuators.
Built on Microchip's enhanced mid-range PIC18 core, the device achieves 64 MHz operation from an internal oscillator block, eliminating the need for an external crystal in many designs. The ADCC automates averaging, filtering, oversampling, and threshold comparison, offloading signal-conditioning tasks from the CPU. Internal peripherals are mapped via the Peripheral Pin Select (PPS) feature, allowing flexible signal routing in space-constrained 20-pin designs.
Typical applications include capacitive touch user interfaces, sensor signal conditioning with on-chip op-amp gain stages, LED lighting control using 16-bit PWM, low-cost motor control, and IoT edge nodes with UART/SPI connectivity. The integrated 12-bit ADC and CVD front-end make the PIC18F16Q41 well-suited for replacing discrete analog sensor front-ends with a single MCU.
When designing with this part, leverage the internal 64 MHz HFINTOSC to minimize BOM cost; supply decoupling requires a 100 nF capacitor close to each VDD pin plus a bulk capacitor. For capacitive touch applications, follow Microchip's mTouch CVD layout guidelines to minimize parasitic capacitance and humidity drift.
Drop-in alternatives for PIC18F16Q41-E/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 PIC18F16Q41-E/SS (same form factor and footprint) — differing in ADC, Package, Core Architecture, Program Memory (Flash), DAC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F16Q41-I/SS
✅ Drop-In✓ In Stock
$1.22 / Unit
View Datasheet →PIC18F15Q41-I/SS
✅ Drop-In✓ In Stock
$0.95 / Unit
View Datasheet →PIC18F14Q41-I/SO
✅ Drop-In✓ In Stock
$1.52 / Unit
View Datasheet →PIC18F16Q40-I/P
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC18F16Q41-E/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 (8-bit Harvard RISC) |
| Maximum CPU Frequency | 64 MHz |
| Program Memory (Flash) | 64 KB (64K x 8) |
| SRAM | 4 KB |
| EEPROM | 512 bytes |
| ADC | 12-bit ADC with Computation (ADCC) |
| DAC Modules | 2 x 8-bit DAC |
| Operational Amplifier | 1 on-chip op-amp |
| PWM | 16-bit PWM |
| Communication Interfaces | UART, SPI, I2C |
| I/O Pins (max) | 17 |
| Operating Temperature (E grade) | -40C to +125C |
| Package | 20-pin SSOP |
| RoHS Status | Compliant |
PIC18F16Q41-E/SS Pin Configuration
| Pin 1 | RA0/ANA0/DAC1OUT/OPA1IN0+ — Analog input / DAC1 output / op-amp non-inverting input |
| Pin 2 | RA1/ANA1/OPA1IN0- — Analog input / op-amp inverting input |
| Pin 3 | RA2/ANA2/OPA1IN1-/VREF- — Analog input / op-amp alternate input / negative reference |
| Pin 4 | RA3/ANA3/VREF+ — Analog input / positive reference |
| Pin 5 | RA4/OPA1OUT — Op-amp output |
| Pin 6 | RA5/ANA5 — Analog input / I/O |
| Pin 7 | RA6 — I/O |
| Pin 8 | VSS — Ground |
| Pin 9 | RA7 — I/O |
| Pin 10 | RB0 — I/O / ICSP programming clock (PGC) |
| Pin 11 | RB1 — I/O / ICSP programming data (PGD) |
| Pin 12 | RB2 — I/O |
| Pin 13 | RB3 — I/O |
| Pin 14 | RB4 — I/O |
| Pin 15 | RB5 — I/O |
| Pin 16 | RB6 — I/O |
| Pin 17 | RB7 — I/O |
| Pin 18 | VDD — Positive supply |
| Pin 19 | VSS — Ground |
| Pin 20 | RA1/MCLR — Master Clear (reset, active low) |
Typical Applications
PIC18F16Q41-E/SS is suitable for 7 applications: Capacitive Touch User Interface, Sensor Signal Conditioning with On-Chip Op-Amp, LED Lighting and PWM Control, Low-Cost IoT Edge Nodes, Appliance Control Boards, Automotive Aftermarket Accessories, Battery-Powered Measurement Devices.
Capacitive Touch User Interface
The PIC18F16Q41-E/SS is well-suited for capacitive touch buttons, sliders, and proximity sensors because the integrated 12-bit ADCC automates Capacitive Voltage Divider (CVD) measurements at 64 MHz with on-chip averaging and threshold comparison. Engineers eliminate external touch-front-end ICs by mapping touch electrodes through the PPS-routed I/O pins, and the -E/SS Extended grade supports industrial and appliance front panels operating from -40C to +125C. Unlike generic 8-bit MCUs that require firmware-driven CVD, the ADCC module offloads filtering and oversampling from the CPU, leaving MIPS for comms and HMI logic.
Recommended
Sensor Signal Conditioning with On-Chip Op-Amp
The PIC18F16Q41-E/SS integrates an on-chip operational amplifier, two 8-bit DACs, and the 12-bit ADCC, allowing direct conditioning of low-level analog signals from thermocouples, RTDs, and strain-gauge bridges. The op-amp stage provides programmable gain in front of the ADC, replacing a discrete op-amp IC and shrinking the BOM for cost-sensitive sensor modules. The -40C to +125C operating range supports industrial process control where the PIC's ADCC averaging improves SNR on noisy analog inputs.
Recommended
LED Lighting and PWM Control
The PIC18F16Q41-E/SS includes 16-bit PWM channels with high resolution, suitable for dimmable LED drivers, RGB color-mixing fixtures, and motor-speed control loops. The 64 MHz core computes lighting state machines at low overhead while the PWM outputs drive FET gate drivers directly. The Extended temperature grade supports luminaires in enclosed fixtures or outdoor enclosures, where ambient temperatures regularly exceed 85C during operation.
Recommended
Low-Cost IoT Edge Nodes
The PIC18F16Q41-E/SS delivers UART, SPI, and I2C connectivity to attach to radio modules, environmental sensors, or actuators in IoT edge nodes. The 64 KB Flash holds application firmware plus Over-The-Air update staging areas, and 4 KB SRAM buffers measurement streams without external memory. The Extended grade ensures reliable operation in outdoor enclosures and industrial cabinets, while the SSOP-20 form factor keeps PCB footprints small.
Recommended
Appliance Control Boards
The PIC18F16Q41-E/SS suits white-goods and appliance control boards where the -40C to +125C Extended grade tolerates high ambient temperatures near motors or heating elements. The 16-bit PWM drives solenoids and pumps, the 12-bit ADCC samples thermostat inputs, and the on-chip op-amp senses current shunt resistors. The integrated ADCC reduces firmware load for safety-critical oversampling, important in appliances requiring IEC 60730 class B compliance.
Recommended
Automotive Aftermarket Accessories
The PIC18F16Q41-E/SS, while not AEC-Q100 qualified, operates reliably at up to +125C and can be used in aftermarket automotive accessories such as interior lighting controllers, fan speed regulators, and CAN-bridge adapters. The 64 KB Flash accommodates LIN protocol stacks and CAN-peripheral emulation over UART, while the 16-bit PWM generates the precise drive waveforms needed for motor and lighting control behind the dashboard.
Recommended
Battery-Powered Measurement Devices
The PIC18F16Q41-E/SS supports low-power modes useful for battery-powered measurement devices such as portable testers and handheld instruments. The 12-bit ADCC handles periodic sensor reads, and the on-chip op-amp provides buffer for high-impedance probes. With 4 KB SRAM and 64 KB Flash, designers can implement calibration tables and data logging without external memory, extending battery life in field-instrument applications.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F16Q41-E/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F16Q41-I/SS | PIC18F15Q41-I/SS | PIC18F14Q41-I/SO | PIC18F16Q40-I/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin SSOP | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same |
| Flash Memory | 64 KB | 64 KB | 32 KB | 16 KB | 64 KB |
| SRAM | 4 KB | 4 KB | 2 KB | 1 KB | 4 KB |
| EEPROM | 512 bytes | 512 bytes | 256 bytes | 256 bytes | 512 bytes |
| Maximum Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| On-chip Op-Amp | Yes (1) | Yes (1) | Yes (1) | Yes (1) | No |
| Temperature Grade | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
Key Differentiators
- Integrated op-amp and dual 8-bit DAC (vs PIC18F16Q40-I/P)
- 12-bit ADCC with CVD for capacitive touch (vs PIC18F16Q40-I/P)
- Extended -40C to +125C temperature grade (vs PIC18F16Q41-I/SS)
Design Notes
Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of the VDD pin (pin 18) plus a 1 uF bulk capacitor on the same rail. According to the Microchip PIC18F06/16Q41 datasheet, the ADC accuracy depends on low-noise VDD; route the analog supply separately if the application uses the on-chip op-amp or DACs. Estimated: leaving the op-amp enabled adds approximately 350 uA of IDD; disable it during sleep for battery-powered designs.
For capacitive touch sensing with the ADCC CVD feature, follow Microchip mTouch layout guidelines: place touch electrodes as direct pin extensions, use guarded traces, and avoid ground planes under touch pads. Parasitic capacitance on touch I/O pins should be below 20 pF; raise the touch sample time or use oversampling in ADCC for higher-capacitance electrodes. Estimated: a typical touch button consumes 4 ADCC samples per measurement at 64 MHz, taking approximately 4 us.
Do not leave the ICSP programming pins (RB0/PGC, RB1/PGD) floating if the device is in-circuit programmed: Microchip recommends 4.7 kohm pull-ups to VDD on these pins in production designs. The MCLR pin (pin 20) requires a 4.7 kohm pull-up to VDD to ensure proper reset behavior. Disabling the Peripheral Pin Select (PPS) lock bit after final firmware programming prevents accidental peripheral remapping in field-deployed units.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - use dsPIC33 family for automotive designs.
