PIC18F27Q83-E/SO - 8-bit 64MHz 128KB Flash MCU with CAN | Microchip
MPN: PIC18F27Q83-E/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.07 | $30.70 |
| 100 | $2.64 | $264.00 |
| 500 | $2.31 | $1,155.00 |
| 1,000 | $2.07 | $2,070.00 |
PIC18F27Q83-E/SO Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, RAM, peripherals, and I/O into one package. PIC18 microcontrollers use Microchip's enhanced 8-bit RISC architecture and sit at the bottom of the embedded hierarchy: 8-bit core -> PIC18 family -> 8-bit MCU -> microcontroller -> embedded system -> semiconductor. The PIC18-Q83 family emphasizes low-power operation with active CIPs that run independently of the core, reducing CPU load and power consumption.
Key features include a 64 MHz maximum clock frequency providing up to 16 MIPS throughput, a wide 1.8 V to 5.5 V operating supply voltage for direct battery and 5V-rail operation, and 25 I/O pins to support mixed-signal interfaces. The 12-bit ADC with Computation (ADC2) offloads averaging, threshold comparison, and filtering from the CPU. Hardware peripherals such as the 16-bit PWMs, configurable op-amps, and comparators enable motor, lighting, and power-conversion control loops.
Internally, the PIC18F27Q83 employs a Harvard architecture with separate program and data buses, a hardware multiplier, and an 8-level hardware stack. The CIPs — including CWG, NCO, DSM, math accelerator, and signal measurement timers — collectively allow a wide range of functional safety, motor-control, and IoT tasks to be handled without CPU intervention, freeing the core for application logic.
Typical applications include automotive body and sensor networks using the integrated CAN bus, industrial control with mixed-signal sensor acquisition, motor control and LED drivers using the PWMs and op-amps, and low-power IoT sensor nodes leveraging the CIP-based autonomous peripherals. The wide operating voltage range makes it equally suited to 3.3V battery-powered and 5V industrial-rail designs.
When designing with this part, place 100 nF decoupling capacitors on every VDD pin, route analog and digital grounds to a single-point star ground, and reserve a few GPIOs as test points for in-circuit programming and debug. Use Microchip's MPLAB X IDE with MPLAB Code Configurator (MCC) to auto-generate CIP initialization code.
This page consolidates distributor pricing, drop-in SOIC-28 alternatives, and practical design notes for the PIC18F27Q83-E/SO that go beyond the manufacturer's datasheet summary.
Drop-in alternatives for PIC18F27Q83-E/SO — 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 PIC18F27Q83-E/SO (same form factor and footprint) — differing in Package, Core Architecture, Program Memory (Flash), ADC, Comparators.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F27Q83-I/SO
✅ Drop-In✓ In Stock
$1.65 / Unit
View Datasheet →PIC18F27Q84-E/SO
✅ Drop-In✓ In Stock
$1.92 / Unit
View Datasheet →PIC18F27Q43-I/SO
✅ Drop-In✓ In Stock
$1.85 / Unit
View Datasheet →PIC18F26Q84-I/SO
✅ Drop-In✓ In Stock
$2.65 / Unit
View Datasheet →PIC18F27Q10-I/SO
✅ Drop-In✓ In Stock
$1.85 / Unit
View Datasheet →PIC18F27K42-I/SO
✅ Drop-In✓ In Stock
$1.95 / Unit
View Datasheet →PIC18F27Q83-E/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 8-bit RISC |
| Maximum Clock Frequency | 64 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| RAM Size | 13 KB (12800 bytes) |
| EEPROM Size | 1 KB |
| Data Bus Width | 8 bit |
| ADC Resolution | 12 bit |
| Number of ADC Channels | 24 |
| DAC Resolution | 12 bit |
| Number of I/O Pins | 25 |
| Operating Supply Voltage | 1.8 V to 5.5 V |
| Operating Temperature Range | -40 C to +125 C |
| Mounting Style | SMD/SMT |
| Package | 28-SOIC (SO-300mil) |
| Communication Interfaces | CAN, I2C, SPI, UART |
| Peripheral Highlights | CIPs: ADC2, DAC, op-amps, comparators, DSM, CWG, NCO, ZCD, MVIO, 16-bit PWM, UTMR |
| Temperature Grade | Automotive / Extended (-40 to +125 C) |
| RoHS Status | Compliant |
PIC18F27Q83-E/SO Pin Configuration
| Pin 1 | MCLR/RE3 — Master Clear (reset) input or digital I/O RE3; weak pull-up enabled in code |
| Pin 2 | RA0 — Digital I/O / analog input AN0 |
| Pin 3 | RA1 — Digital I/O / analog input AN1 |
| Pin 4 | RA2 — Digital I/O / analog input AN2 |
| Pin 5 | RA3 — Digital I/O / analog input AN3 |
| Pin 6 | RA4 — Digital I/O / analog input AN4 |
| Pin 7 | RA5 — Digital I/O / analog input AN5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA7 — Digital I/O |
| Pin 10 | RA6 — Digital I/O / oscillator pin |
| Pin 11 | RC0 — Digital I/O / analog input AN12 |
| Pin 12 | RC1 — Digital I/O / analog input AN13 |
| Pin 13 | RC2 — Digital I/O / analog input AN14 |
| Pin 14 | RC3 — Digital I/O / analog input AN15 |
| Pin 15 | RC4 — Digital I/O |
| Pin 16 | RC5 — Digital I/O |
| Pin 17 | RC6 — Digital I/O |
| Pin 18 | RC7 — Digital I/O |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage (1.8 V to 5.5 V) |
| Pin 21 | RB0 — Digital I/O / analog input AN8 |
| Pin 22 | RB1 — Digital I/O / analog input AN9 |
| Pin 23 | RB2 — Digital I/O / analog input AN10 |
| Pin 24 | RB3 — Digital I/O / analog input AN11 |
| Pin 25 | RB4 — Digital I/O / analog input AN19 |
| Pin 26 | RB5 — Digital I/O / analog input AN20 |
| Pin 27 | RB6 — Digital I/O / PGC (ICSP clock) |
| Pin 28 | RB7 — Digital I/O / PGD (ICSP data) |
Typical Applications
PIC18F27Q83-E/SO is suitable for 6 applications: Automotive CAN Sensor Nodes, Industrial Control and PLC Modules, Motor Control and LED Drivers, Low-Power IoT Sensor Hubs, Appliance User Interface and HMI, Automotive Lighting and BCM Modules.
Automotive CAN Sensor Nodes
The PIC18F27Q83-E/SO's integrated CAN 2.0B controller, 24-channel 12-bit ADC2 with computation, and 64 MHz throughput make it ideal for body and powertrain-area sensor nodes. It can sample pressure, temperature, or position sensors, run autonomous CIP-based averaging, and broadcast results over a 500 kbit/s CAN bus without CPU intervention. Operating from -40 to +125 C and 1.8-5.5 V lets it ride directly off a 12 V regulated rail or battery stack, while its 25 I/O pins support multiple sensor and actuator channels per node. Per the PIC18-Q83 family datasheet, the CIP mix specifically targets distributed automotive sensor networks.
Recommended
Industrial Control and PLC Modules
In industrial PLC and process-control modules, the PIC18F27Q83-E/SO delivers deterministic 64 MHz performance with CIPs that offload PWM, ADC averaging, and zero-cross detection. The 12-bit DAC allows analog reference outputs, while the op-amps and comparators perform current/voltage monitoring for closed-loop feedback. The wide 1.8-5.5 V supply permits use across 24 V industrial rails after external regulation, and 25 I/O pins are sufficient for multi-channel analog and digital I/O cards. Per Microchip application notes, the PIC18-Q83 family suits distributed remote I/O nodes and small-form-factor signal conditioners.
Recommended
Motor Control and LED Drivers
The PIC18F27Q83-E/SO drives BLDC, stepper, and LED loads using its 16-bit PWMs, configurable op-amps, comparators, and CWG peripheral - all integrated as Core Independent Peripherals. At 64 MHz, the device closes single-shunt current loops faster than the PWM period, while the DSM and CWG blocks synthesize dead-band and complementary outputs without CPU load. The op-amps condition shunt-resistor signals internally, saving PCB area in space-constrained drivers. Per Microchip application notes, this MCU targets cost-optimized BLDC fans, pumps, and 4-wire LED lighting applications.
Recommended
Low-Power IoT Sensor Hubs
Battery-powered IoT sensor hubs benefit from the PIC18F27Q83-E/SO's CIP-based autonomous operation: ADC2 with computation, signal measurement UTMR, and deep-sleep modes let the MCU service sensors without waking the CPU. With 128 KB Flash and 13 KB RAM, it can run lightweight LoRaWAN, MQTT-SN, or BLE-proxied protocol stacks locally, while 1.8-5.5 V operation supports direct connection to 3.6 V Li-SOCl2 or 3.0 V coin-cell stacks. According to the Microchip low-power datasheet section, sleep currents below 1 uA extend multi-year battery life in metering and environmental telemetry nodes.
Recommended
Appliance User Interface and HMI
The PIC18F27Q83-E/SO's 25 I/O pins and capacitive-touch-ready mTouch peripherals support HMI panels with up to 24 buttons or sliders without a separate touch controller. The 64 MHz throughput drives small OLED/TFT displays via SPI, while the 12-bit DAC and PWMs support backlight dimming and buzzer tones. EEPROM-backed settings retain user preferences across power cycles. Per Microchip application notes, this part targets cost-optimized white-goods HMIs such as washing-machine fronts, induction-cooktop controls, and air-conditioner panels.
Recommended
Automotive Lighting and BCM Modules
Body Control Modules (BCMs) and exterior lighting modules use the PIC18F27Q83-E/SO to drive LED chains, smart fuses, and CAN nodes within a single 28-SOIC. The CWG peripheral generates accurate PWM dimming curves, while the integrated 12-bit ADC measures headlight current for fault feedback. Operating from -40 to +125 C and 1.8-5.5 V lets the device ride the 12 V automotive rail with only a basic LDO. According to Microchip's BCM reference design, this MCU is a strong fit for daylight-running-light and tail-light controllers.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F27Q83-E/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F27Q83-I/SO | PIC18F27Q84-E/SO | PIC18F27Q43-I/SO | PIC18F26Q84-I/SO | PIC18F27Q10-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC (same) | 28-SOIC (same) | 28-SOIC (same) | 28-SOIC (same) | 28-SOIC (same) |
| Max Clock Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 64 KB | 64 KB |
| CAN Module | Yes (CAN 2.0B) | Yes | Yes | Yes | Yes | No |
| Temperature Grade | -40 to +125 C (E) | -40 to +85 C (I) | -40 to +125 C (E) | -40 to +85 C (I) | -40 to +85 C (I) | -40 to +85 C (I) |
| ADC Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit | 10 bit |
Key Differentiators
- Integrated CAN 2.0B controller plus 128 KB Flash in 28-SOIC (vs PIC18F27Q10-I/SO)
- Extended -40 to +125 C automotive grade standard (vs PIC18F27Q83-I/SO)
- Richest CIP set among 28-SOIC PIC18 options (vs PIC18F27K42-I/SO)
Design Notes
Place a 100 nF X7R decoupling capacitor on each VDD pin (pin 20) as close as physically possible - within 3 mm of the package body. Add a 10 uF bulk tantalum or ceramic capacitor near the regulator output to handle current transients during wake-from-sleep events. The PIC18F27Q83-E/SO datasheet specifies that VDDCORE must be bypassed with an external inductor and capacitor if the on-chip regulator is disabled, otherwise leave it internally regulated for 64 MHz operation.
Route analog inputs (RA0-RA5, RB1-RB5, RC1-RC3) and AVSS separately from noisy digital traces. The PIC18-Q83 family datasheet recommends using a star-ground topology at the VSS pin with AVSS isolated by a ferrite bead. Keep ADC traces short (<25 mm) to minimize capacitive loading; this protects the 12-bit accuracy at full 64 MHz throughput.
Do not leave the MCLR pin floating - configure it with a 10 kohm pull-up to VDD, or unused, set it as a digital input with internal pull-up in firmware. On the PIC18F27Q83-E/SO, the ADC input selection is multiplexed - changing channels during a conversion corrupts the reading; wait for the conversion to complete or use the ADC2 computation to chain conversions safely.
Compliance Information
RoHS/REACH compliance noted by distributors; the -E suffix denotes extended (-40 to +125 C) automotive-temp grade but is not AEC-Q100 qualified. Lead-free finish confirmed by Microchip product page.
