PIC18F26K83-I/SS - 8-bit 64MHz 64KB Flash MCU | Microchip | CAN+ADC2
MPN: PIC18F26K83-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.2 | $22.00 |
| 100 | $1.95 | $195.00 |
| 500 | $1.72 | $860.00 |
| 1,000 | $1.55 | $1,550.00 |
PIC18F26K83-I/SS Overview
A microcontroller (MCU) is an integrated circuit that combines a CPU core, volatile memory (RAM), non-volatile program memory (Flash/ROM), and configurable peripherals on a single die. Within the broader taxonomy, the PIC18F26K83 sits in the 8-bit PIC18 family -> PIC microcontrollers -> microcontrollers (MCU) -> microcontrollers and processors -> embedded semiconductors. Its XLP (eXtreme Low Power) pedigree targets battery-powered and always-on designs where nanoWatt sleep currents and fast wake-up times are critical.
Key features include 64KB (32K x 16 words) Flash program memory, 4KB RAM, 1KB EEPROM, a 64MHz internal oscillator, and a 12-bit ADC2 with Capacitive Voltage Divider (CVD) hardware automation for advanced touch sensing, oversampling, averaging and filtering. Communication peripherals include CAN, I2C, SPI, UART/USART and LINbus, supported by DMA, vector interrupts, a 16-bit PWM module, and a windowed watchdog timer. Functional Safety (FuSa) features suit IEC 60730 class B-capable appliance designs.
Architecturally the PIC18F26K83 uses Microchip's enhanced Harvard RISC core with a 16-bit instruction word and an 8-bit data path, augmented by a hardware multiplier and a 32-level stack. The ADC2 peripheral offloads sensor post-processing via dedicated hardware, reducing CPU wake events and enabling lower system power.
Typical applications include CAN-connected industrial sensors, automotive body and comfort modules, capacitive touch user interfaces, appliance control boards, building automation nodes, and LIN/CAN gateways. Its combination of CAN, ADC2 and XLP makes it a strong fit for space-constrained, networked, low-power embedded systems.
When designing with this device, place a 100 nF decoupling capacitor on VDD within 3 mm of the pin and a bulk 10 uF near the IC, route the 28-pin SSOP thermal pad and unused I/O per Microchip's guidelines, and reserve ICSP programming pins (PGC/PGD) with test-point access for production. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC18F26K83-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 PIC18F26K83-I/SS (same form factor and footprint) — differing in ADC, Package, Program Memory (Flash), DAC, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F26K83-I/SP
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC18F26K83T-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F25K83-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18LF26K83-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F26Q83-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F26K83-I/SS Maximum Ratings & Electrical Characteristics
| Product Series | PIC18 XLP 18K, Functional Safety (FuSa) |
| Core Architecture | PIC18 8-bit RISC (Harvard) |
| Program Memory (Flash) | 64 KB (32K x 16 words) |
| Data RAM | 4 KB |
| Data EEPROM | 1 KB |
| Maximum CPU Frequency | 64 MHz |
| ADC | 12-bit ADC with Computation (ADC2), CVD support |
| Communication Interfaces | CAN, I2C, LINbus, SPI, UART/USART |
| Number of I/O | 25 |
| Operating Voltage (VDD) | 2.3 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Package | 28-pin SSOP (5.30 mm body) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC18F26K83-I/SS Pin Configuration
| Pin 1 | RA0/C1IN0+/ANA0/SDO2/VCAP — PORTA bit 0, ADC input, SPI2 SDO, core voltage decoupling |
| Pin 2 | RA1/C1IN1-/ANA1/SDI2 — PORTA bit 1, ADC input, SPI2 SDI |
| Pin 3 | RA2/ANA2/DAC1OUT1/VREF- — PORTA bit 2, ADC input, DAC output, VREF- |
| Pin 4 | RA3/ANA3/VREF+/DAC1OUT2 — PORTA bit 3, ADC input, VREF+, DAC output |
| Pin 5 | RA4/ANA4/T0CKI/SRNQ — PORTA bit 4, ADC input, Timer0 clock, SR-latch inverting input |
| Pin 6 | RA5/ANA5/SRQ — PORTA bit 5, ADC input, SR-latch output |
| Pin 7 | RA6/ANA6/CLKOUT — PORTA bit 6, ADC input, clock output |
| Pin 8 | RA7/ANA7 — PORTA bit 7, ADC input |
| Pin 9 | VSS — Ground reference |
| Pin 10 | VDD — Positive supply voltage (2.3V-5.5V) |
| Pin 11 | RB0/ZCD/C2IN1+/C1IN3+/ANB0/CCP4 — PORTB bit 0, ZCD output, comparator input, ADC input, CCP4 |
| Pin 12 | RB1/ZCD/C1IN3-/ANB1/SDA2/CCP5 — PORTB bit 1, ZCD, comparator, ADC, I2C2 SDA, CCP5 |
| Pin 13 | RB2/CANRX/C2IN3+/ANB2/SCL2 — PORTB bit 2, CAN RX, comparator, ADC, I2C2 SCL |
| Pin 14 | RB3/CANTX/C1IN2-/ANB3 — PORTB bit 3, CAN TX, comparator, ADC |
| Pin 15 | RB4/ANB4/SDA1 — PORTB bit 4, ADC input, I2C1 SDA |
| Pin 16 | RB5/ANB5/SCL1 — PORTB bit 5, ADC input, I2C1 SCL |
| Pin 17 | RB6/ANB6/PGC/ICDCLK — PORTB bit 6, ADC input, ICSP clock, ICD clock |
| Pin 18 | RB7/ANB7/PGD/ICDDAT — PORTB bit 7, ADC input, ICSP data, ICD data |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage (2.3V-5.5V) |
| Pin 21 | RC0/SOSCO — PORTC bit 0, secondary oscillator output |
| Pin 22 | RC1/SOSCI — PORTC bit 1, secondary oscillator input |
| Pin 23 | RC2/ANC2/CCP1 — PORTC bit 2, ADC input, CCP1 PWM |
| Pin 24 | RC3/ANC3/SCK1 — PORTC bit 3, ADC input, SPI1 clock |
| Pin 25 | RC4/ANC4/SDI1 — PORTC bit 4, ADC input, SPI1 data in |
| Pin 26 | RC5/ANC5/SDO1 — PORTC bit 5, ADC input, SPI1 data out |
| Pin 27 | RC6/ANC6/TX/CK — PORTC bit 6, ADC input, UART TX/CK |
| Pin 28 | RC7/ANC7/RX/DT — PORTC bit 7, ADC input, UART RX/DT |
Typical Applications
PIC18F26K83-I/SS is suitable for 6 applications: CAN-Connected Industrial Sensors, Automotive Body and Comfort Modules, Capacitive Touch User Interfaces, Appliance Control Boards, Building Automation and HVAC Nodes, LIN/CAN Gateway and Bridge Modules.
CAN-Connected Industrial Sensors
The PIC18F26K83-I/SS is purpose-built for CAN-connected industrial sensors because its on-chip CAN 2.0B controller, 64 MHz core and 12-bit ADC2 share one die, allowing a single MCU to digitize, filter and transmit a measurement over a single twisted pair. The integrated DMA engine moves ADC results directly into CAN mailboxes without waking the CPU, and the XLP sleep current keeps battery-powered field sensors alive for years. Compared with a discrete MCU plus external CAN controller solution, this part reduces PCB area by ~40% and BOM cost by ~25%, while the 28-pin SSOP is small enough to fit inside a sensor housing.
Recommended
Automotive Body and Comfort Modules
Automotive body control modules (lighting, HVAC, seat, mirror) use the PIC18F26K83-I/SS to combine LIN/CAN communication, PWM motor control and analog input handling in one AEC-Q100-capable MCU. The 16-bit PWM with independent time bases drives LED lighting and small DC motors, while the ADC2 with hardware oversampling reads NTC thermistors and current shunts with high noise immunity. The FuSa (Functional Safety) library supports IEC 60730 class B compliance, and the -40 C to +125 C extended-temperature variant (PIC18F26K83-E/SS) targets under-hood deployments.
Recommended
Capacitive Touch User Interfaces
The PIC18F26K83-I/SS ADC2 with hardware CVD (Capacitive Voltage Divider) drives up to 16 capacitive touch buttons or a slider directly, with no external touch IC required. Hardware-based charge redistribution, averaging and threshold detection let the CPU remain in sleep while scanning, which is critical for battery-powered appliances where the touch panel is the primary power drain. Designers can route copper pads directly to any I/O pin, eliminating the expensive flex overlay of resistive touch and reducing BOM cost by 30-50% compared with dedicated touch controllers.
Recommended
Appliance Control Boards
White-goods appliances (washing machines, dishwashers, ovens, refrigerators) integrate the PIC18F26K83-I/SS as the main controller because it pairs a 64 MHz core, 64 KB Flash and ADC2 with a FuSa library qualified for IEC 60730 class B. The vector-interrupt controller handles simultaneous pressure-sensor, motor-PWM and user-interface events in real time, while DMA offloads repetitive peripheral-to-memory transfers. The 28-pin SSOP package is small enough for the dense control boards typical of modern appliances, and XLP low-power modes help meet ENERGY STAR standby targets of <0.5 W.
Recommended
Building Automation and HVAC Nodes
Building automation nodes (room thermostats, CO2/VOC sensor stations, VAV controllers) rely on the PIC18F26K83-I/SS for CAN/LIN networking, ADC2 sensor reading and XLP deep-sleep operation. The 12-bit ADC2 with CVD performs touch-button or slider inputs directly on the front panel, while the 1 KB EEPROM stores calibration constants and user setpoints across power cycles. The combination of low sleep current (<100 nA typical) and fast wake-up time makes the part ideal for battery-plus-harvest powered wireless sensor nodes communicating over CAN or LIN to a central HVAC controller.
Recommended
LIN/CAN Gateway and Bridge Modules
The PIC18F26K83-I/SS is a cost-effective LIN-to-CAN gateway MCU because it integrates both LIN and CAN peripherals alongside UART/SPI/I2C on the same die. A single device can simultaneously service a LIN master on one bus and a CAN node on another, translating frames in firmware at the 16 MIPS available from the 64 MHz core. The 64 KB Flash holds a CANopen, J1939 or LIN 2.2 protocol stack, and the 4 KB RAM buffers inbound/outbound frames without bus contention. The 28-pin SSOP keeps the gateway PCB smaller than 25 mm x 25 mm, suitable for inline connector housings.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F26K83-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F26K83-I/SP | PIC18F26K83T-I/SS | PIC18F25K83-I/SS | PIC18LF26K83-I/SS | PIC18F26Q83-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin SSOP | 28-pin SPDIP (through-hole) | 28-pin SSOP (same) | 28-pin SSOP (same) | 28-pin SSOP (same) | 28-pin SSOP (same) |
| Program Memory (Flash) | 64 KB | 64 KB | 64 KB | 32 KB | 64 KB | 64 KB |
| Data RAM | 4 KB | 4 KB | 4 KB | 2 KB | 4 KB | 4 KB |
| EEPROM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V |
| CAN Peripheral | CAN 2.0B | CAN 2.0B | CAN 2.0B | CAN 2.0B | CAN 2.0B | CAN 2.0B / CAN FD-ready |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Key Differentiators
- ADC2 with hardware CVD enables zero-CPU capacitive touch (vs PIC18F26K80-I/SS)
- FuSa (Functional Safety) library supports IEC 60730 class B (vs PIC18F25K83-I/SS)
- Vector-interrupt controller and DMA reduce latency vs older PIC18 parts (vs PIC18F26K20-I/SS)
Design Notes
Place a 100 nF ceramic decoupling capacitor on each VDD/VSS pair (pins 9/10 and 19/20) within 3 mm of the package, plus a single 10 uF bulk tantalum or ceramic near the IC. The PIC18F26K83-I/SS draws roughly 15 mA at 64 MHz with all peripherals active, so the LDO (such as MCP1700) must handle the inrush of an ADC2 burst read; reserve 30% margin in the regulator's current rating. For XLP deep-sleep (DSBOR + DSWDT off), the data sheet shows quiescent current below 100 nA typical, which is critical for battery-driven sensor nodes.
Estimated: at 5 V VDD, 64 MHz, and full peripheral activity, the part dissipates approximately 75 mW. The 28-pin SSOP has a theta_JA around 95 C/W on a 1 oz 2-layer JEDEC test board, resulting in a 7 C junction-temperature rise above ambient - well within the -40 C to +85 C industrial rating. For continuous operation near 85 C ambient in a sealed enclosure, route a copper thermal relief pad under the SSOP body and consider venting or a small heat spreader to keep junction rise under 15 C for long-term reliability.
Keep the 28-pin SSOP trace length on PGC/PGD (pins 17/18) under 50 mm and avoid vias on those nets to preserve ICSP signal integrity at 5 MHz programming clock. Isolate the analog AVdd rail from digital Vdd by a ferrite bead, and route the 12-bit ADC inputs away from PWM and CAN switching traces to avoid coupling noise. Expose a 1.5 mm x 1.5 mm test-point land pattern for PGC and PGD so production can program the device without rework.
Do not leave the MCLR pin floating - the PIC18F26K83-I/SS datasheet requires a 10 kohm pull-up to VDD for normal operation; if the pin is left floating the device may intermittently reset or fail to start. Always configure the unused I/O pins as outputs driven low (never as inputs) to minimize sleep current by 1-3 uA. The CVD-touch capacitance measurement requires the ADACT register to be loaded correctly per datasheet section 32.0; misuse of this register is the most common cause of noisy touch readings.
Compliance Information
RoHS and lead-free compliance per Microchip product page. The PIC18F26K83-I/SS family is not AEC-Q100 qualified; AEC-Q100 qualified variants are typically ordered with -E (extended) or -VAO suffixes. FuSa (Functional Safety) library supports IEC 60730 class B compliance for appliance designs.
