PIC18F27Q83T-I/SS - 8-Bit MCU 64MHz 128KB Flash CAN SSOP-28 | Microchip
MPN: PIC18F27Q83T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.1 | $3.10 |
| 10 | $2.78 | $27.80 |
| 100 | $2.45 | $245.00 |
| 500 | $2.18 | $1,090.00 |
| 1,000 | $1.94 | $1,940.00 |
PIC18F27Q83T-I/SS Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O on one die. The PIC18 family belongs to the category of 8-bit RISC microcontrollers -> general-purpose MCUs -> embedded controllers -> semiconductor ICs. Microchip's PIC18-Q83 series combines a CIP (Core Independent Peripheral) ecosystem with CAN FD connectivity, allowing complex control and communication tasks to execute in hardware without CPU intervention, freeing the core for application logic.
Key features include an integrated 12-bit ADC with Computation (ADCC), a 5-bit DAC, a DSM (Data Signal Modulator) for waveform generation, multiple PWM/CCP/CWG/HLT/WWDT peripherals, ZCD (Zero-Cross Detection), SCAN/CRC memory verification, Peripheral Pin Select (PPS) for flexible signal routing, and a 64 MHz internal oscillator. The 28-SSOP package supports industrial-grade operating temperatures from -40 °C to +85 °C.
Architecturally, the PIC18F27Q83 employs an 8-bit RISC pipeline with a modified Harvard bus, 16-bit instructions, and a vectored interrupt controller. The Device Information Area (DIA) stores factory calibration, and the Device Configuration Area (DCA) provides one-time-programmable fuse options for code protection and oscillator selection. The CIPs are interconnected via Microchip's Fabric (a hardware routing fabric) so peripherals can trigger each other without waking the CPU.
Typical applications include CAN-based automotive body and chassis ECUs, industrial sensor nodes with analog front ends, motor control with BLDC or stepper drives, LED lighting controllers, USB-to-CAN bridges, and IoT edge nodes requiring deterministic communication. The wide supply range (1.8 V to 5.5 V) supports both 3.3 V and 5 V system designs.
When designing with this MCU, allocate careful attention to the PPS mapping - peripheral I/O can be reassigned to most digital pins, simplifying PCB layout but requiring a one-time configuration lock. Also, for CAN FD designs, ensure the CAN transceiver (such as MCP2562FD) matches the bus data rate and provides proper bus-side isolation.
This page synthesizes distributor pricing, parametric alternatives, and practical design notes that are not consolidated on the manufacturer datasheet, providing engineers with a single reference for component selection, BOM risk analysis, and design validation.
Drop-in alternatives for PIC18F27Q83T-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 PIC18F27Q83T-I/SS (same form factor and footprint) — differing in Package, DAC, Operating Temperature, ADC, MSL Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F27Q83-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F27Q83T-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F27Q83-I/SP
✅ Drop-In✓ In Stock
$2.42 / Unit
View Datasheet →PIC18F27Q83T-I/SO
✅ Drop-In✓ In Stock
$2.62 / Unit
View Datasheet →PIC18F26Q84-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F27Q10T-I/SS
✅ Drop-In✓ In Stock
$1.65 / Unit
View Datasheet →PIC18F27Q83T-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 8-bit RISC |
| Program Memory (Flash) | 128 KB (128K x 8) |
| Data Memory (SRAM) | 13 KB |
| Data EEPROM | 1 KB |
| Maximum CPU Speed | 64 MHz |
| Supply Voltage (Vdd) | 1.8 V to 5.5 V |
| Operating Temperature | -40 °C to +85 °C (Industrial) |
| Package | 28-pin SSOP (5.30 mm body, 0.65 mm pitch) |
| DAC | 5-bit DAC |
| Communication | CAN FD, I2C, SPI, UART |
| PWM Modules | PWM, CCP, CWG, HLT |
| Timers | UTMR, WWDT, SMT |
| Core Independent Peripherals | DSM, ZCD, SCAN/CRC, PPS, CLC, HLT |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| MSL Level | 1 |
| Tape and Reel Suffix | T (Tape and Reel packaging) |
PIC18F27Q83T-I/SS Pin Configuration
| Pin 1 | RA0/ICDDAT — Bidirectional I/O / ICD Data |
| Pin 2 | RA1/ICSPCLK — Bidirectional I/O / ICD Clock |
| Pin 3 | RA2 — Bidirectional I/O |
| Pin 4 | RA3/MCLR — Bidirectional I/O / Master Clear (Reset) |
| Pin 5 | RA4 — Bidirectional I/O |
| Pin 6 | RA5 — Bidirectional I/O |
| Pin 7 | RA6 — Bidirectional I/O |
| Pin 8 | RA7 — Bidirectional I/O |
| Pin 9 | VSS — Ground reference |
| Pin 10 | RA7 — Bidirectional I/O |
| Pin 11 | RC0 — Bidirectional I/O / SOSCO crystal out |
| Pin 12 | RC1 — Bidirectional I/O / SOSCI crystal in |
| Pin 13 | RC2 — Bidirectional I/O |
| Pin 14 | RC3 — Bidirectional I/O / SCL1 |
| Pin 15 | RC4 — Bidirectional I/O / SDA1 |
| Pin 16 | RC5 — Bidirectional I/O |
| Pin 17 | RC6 — Bidirectional I/O / TX1 |
| Pin 18 | RC7 — Bidirectional I/O / RX1 |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
| Pin 21 | RB0 — Bidirectional I/O / ZCD input |
| Pin 22 | RB1 — Bidirectional I/O / PWM output |
| Pin 23 | RB2 — Bidirectional I/O |
| Pin 24 | RB3 — Bidirectional I/O |
| Pin 25 | RB4 — Bidirectional I/O |
| Pin 26 | RB5 — Bidirectional I/O |
| Pin 27 | RB6 — Bidirectional I/O / ICSP clock |
| Pin 28 | RB7 — Bidirectional I/O / ICSP data |
Typical Applications
PIC18F27Q83T-I/SS is suitable for 7 applications: CAN-FD Automotive Body and Chassis ECU, Industrial Sensor Node with Analog Front End, BLDC Motor and Stepper Driver Control, LED Lighting Controller with Dimming, USB-to-CAN Bridge and Protocol Gateway, IoT Edge Node with Deterministic Communication, Consumer Appliance Control Board.
CAN-FD Automotive Body and Chassis ECU
The PIC18F27Q83T-I/SS is well suited for CAN-FD automotive body and chassis ECUs because its integrated CAN FD controller supports up to 5 Mbps in FD mode and 1 Mbps nominal bit rate, matching modern automotive bus requirements. The 64 MHz CPU with 16 MIPS throughput runs AUTOSAR or CANopen stacks alongside body-control logic. The 13 KB SRAM and 128 KB Flash accommodate the communication stack plus application firmware. Operating from -40 °C to +85 °C industrial-grade, the MCU pairs well with transceivers such as MCP2562FD. Use Peripheral Pin Select (PPS) to route CAN signals to any compatible I/O pin, simplifying PCB layout under tight automotive EMC constraints.
Recommended
Industrial Sensor Node with Analog Front End
The PIC18F27Q83T-I/SS fits industrial 4-20 mA sensor nodes thanks to its 12-bit ADC with Computation (ADCC), 5-bit DAC, and zero-cross detect (ZCD) peripheral for synchronized mains-voltage sampling. The 1.8 V to 5.5 V supply range supports single-rail designs directly from a 24 V buck converter. The DSM (Data Signal Modulator) generates modulated sensor-excitation waveforms while the CIP fabric automatically averages ADC samples, offloading the CPU. With 1 KB EEPROM, calibration constants can be stored without external memory. The 28-SSOP footprint fits compact DIN-rail modules.
Recommended
BLDC Motor and Stepper Driver Control
The PIC18F27Q83T-I/SS drives small BLDC and stepper motors using its PWM, CCP, and CWG (Complementary Waveform Generator) peripherals with hardware dead-band control and high-low transition (HLT) for safe commutation. The 64 MHz CPU and 16 MIPS throughput execute Field-Oriented Control (FOC) or trapezoidal commutation algorithms in real time. The DSM generates the modulation pattern for low-resolution DAC-style waveform synthesis, while the QEI (Quadrature Encoder Interface) reads position feedback. The 28-SSOP package fits space-constrained motion-control boards, and 1.8 V to 5.5 V operation supports battery-powered or USB-powered designs.
Recommended
LED Lighting Controller with Dimming
The PIC18F27Q83T-I/SS handles constant-current LED drivers using its 16-bit PWM, CLC (Configurable Logic Cell), and DSM peripherals. Multiple PWMs drive RGBW channels independently while the CLC creates autonomous dimming waveforms without CPU overhead. The ZCD (Zero-Cross Detection) module synchronizes phase-cut dimming with the AC mains for TRIAC-compatible dimmers. With 1.8 V to 5.5 V operation, the MCU directly interfaces 3.3 V LED driver ICs. The 128 KB Flash stores custom color-space conversion tables for tunable-white and circadian-rhythm lighting, and the 1 KB EEPROM preserves lighting presets across power cycles.
Recommended
USB-to-CAN Bridge and Protocol Gateway
The PIC18F27Q83T-I/SS builds compact USB-to-CAN bridges by leveraging its full-speed USB 2.0 device support alongside the integrated CAN FD controller. An external USB Type-C port connects via the on-chip USB transceiver, and the CAN-FD module communicates through an MCP2562FD or TJA1057 transceiver. The 13 KB SRAM buffers USB-CAN packets during protocol conversion, while the 128 KB Flash accommodates full CDC-ACM and CANopen or J1939 stack implementations. The 28-SSOP fits the small form factor typical of bench-top diagnostic tools, and 1.8 V to 5.5 V operation simplifies power management from USB VBUS.
Recommended
IoT Edge Node with Deterministic Communication
The PIC18F27Q83T-I/SS works as a deterministic IoT edge node thanks to its on-chip CAN FD interface, UART/SPI/I2C peripherals, and Core Independent Peripherals that handle timing-critical tasks without waking the CPU. The device runs MODBUS RTU over UART or CANopen over CAN-FD with predictable latency. Low-power modes (IDLE/DOZE/PMD) reduce current draw for battery-powered sensor installations, and the 1 KB EEPROM stores configuration that survives power cycles. The 64 MHz speed and 16 MIPS throughput handle lightweight TLS-like session handling or data aggregation before forwarding to gateways.
Recommended
Consumer Appliance Control Board
The PIC18F27Q83T-I/SS provides appliance-control logic in washing machines, dishwashers, and coffee makers by combining the 12-bit ADC for sensor inputs, PWM for motor and heater control, and CAN-FD or UART for HMI panels. The CWG and HLT peripherals generate safety-critical gate-drive signals with hardware dead-time. The DSM modulates auxiliary signals for pumps and valves without CPU overhead. With 1.8 V to 5.5 V operation and the industrial -40 °C to +85 °C temperature range, the MCU operates reliably in hot enclosures near motors and heaters. The 28-SSOP footprint fits small control boards typical of compact appliances.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F27Q83T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F27Q83-I/SS | PIC18F27Q83T-E/SS | PIC18F27Q83-I/SP | PIC18F26Q84-I/SS | PIC18F27Q10T-I/SS |
|---|---|---|---|---|---|---|
| Package | 28-SSOP (0.65 mm pitch) | 28-SSOP (same) | 28-SSOP (same) | 28-SPDIP (different) | 28-SSOP (same) | 28-SSOP (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| SRAM | 13 KB | 13 KB | 13 KB | 13 KB | 13 KB | 13 KB |
| Maximum Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| CAN FD | Yes | Yes | Yes | Yes | Yes | No |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +125 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
| Supply 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 | 1.8 V to 5.5 V |
Key Differentiators
- Integrated CAN FD controller alongside full CIP suite (vs PIC18F27Q10T-I/SS)
- Pin-compatible industrial and extended temperature variants in same package (vs PIC18F27K42T-I/SO)
- Core Independent Peripherals reduce CPU load and power (vs PIC18F25K80T-I/SS)
Design Notes
Place a 100 nF ceramic decoupling capacitor as close as possible to the VDD pin (pin 20) and a 1 µF bulk capacitor near the VDD/VSS pair. The PIC18F27Q83T-I/SS can operate from 1.8 V to 5.5 V; for noisy environments add a ferrite bead in series with VDD. The MCU's internal voltage regulator (LDO) for the core does not require external capacitors, but the VDD/VSS supply must be stable at the moment of POR (Power-On Reset) rise.
Route the ICSP (In-Circuit Serial Programming) signals ICSPCLK and ICSPDAT to a 6-pin header on the board with a 4.7 kΩ pull-up on MCLR if you want in-system programming. Use the Peripheral Pin Select (PPS) feature to remap CAN, UART, SPI, and PWM to convenient pins - this avoids routing buses through the MCU and keeps the PCB simple. Keep crystal traces (SOSCO/SOSCI) short and symmetric, with the load capacitors within 5 mm of the pins.
The PIC18F27Q83T-I/SS differs from PIC18F27Q43-I/SS only in the CIP and peripheral set; the pinout is identical but firmware is NOT drop-in compatible due to different register maps for CAN-FD and DSM peripherals. When migrating from PIC18F27K42 to PIC18F27Q83, note the Q83 has CAN FD hardware - unused CAN pins should be configured as digital outputs or inputs with the on-chip pull-ups enabled to avoid floating inputs that can cause spurious interrupts. The MCLR pin must be tied to VDD through a 10 kΩ resistor for normal operation; leaving MCLR floating prevents startup.
Compliance Information
RoHS compliance confirmed via DigiKey product page. Lead-free per Microchip packaging markings. Halogen-free status not confirmed in the verified data; check Microchip environmental compliance documentation for definitive status. AEC-Q100 automotive qualification is not applicable to the industrial-grade PIC18F27Q83T-I/SS; the extended-temperature PIC18F27Q83T-E/SS variant may carry AEC-Q100 qualification depending on ordering code - confirm with Microchip datasheet.
