PIC18F26Q10-I/SS - 64KB Flash 8-bit MCU 28-SSOP | Microchip
MPN: PIC18F26Q10-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.53 | $1.53 |
| 10 | $1.45 | $14.50 |
| 100 | $1.32 | $132.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $1.05 | $1,050.00 |
| 3,000 | $0.92 | $2,760.00 |
PIC18F26Q10-I/SS Overview
An 8-bit microcontroller (MCU) is a compact single-chip computer that integrates a CPU, program memory (Flash), data memory (RAM), non-volatile EEPROM, and digital/analog peripherals onto one silicon die. Within the broader taxonomy, the PIC18F26Q10 belongs to the 8-bit MCU category, which itself sits inside microcontrollers, which fall under integrated circuits (ICs), and ultimately semiconductors. The 'F' prefix denotes Flash program memory; 'Q10' identifies the family introduced for robust real-time control and sensor-node applications. Compared with 32-bit ARM Cortex-M MCUs, 8-bit PIC18 devices typically trade raw computational throughput for deterministic latency, lower power consumption, and lower BOM cost.
Key features include 64KB self-programmable Flash with high-endurance program memory, 4KB SRAM, 256 bytes EEPROM, 25 general-purpose I/O pins, and a peripheral set encompassing two USART, two SPI, two I²C, 10-bit ADC2, 5-/10-bit DAC, CLC, CWG, HLT, Windowed WWDT, and CRC/SCAN. The 'I' suffix denotes the industrial -40°C to +85°C operating range, and the 5V-tolerant I/O architecture permits direct interfacing with legacy 5V logic.
The device uses a Harvard RISC architecture with a 16-bit instruction word and an 8-bit data path, executing most instructions in a single cycle for a peak throughput of 16 MIPS at 64MHz. Core Independent Peripherals (CIPs) such as CLC and CWG can implement custom combinational/sequential logic and complementary PWM without CPU intervention, offloading deterministic tasks and reducing firmware complexity.
Typical applications include industrial control nodes, sensor signal conditioning, touch and proximity interfaces, automotive LIN slave nodes, IoT edge devices, and consumer appliances. Designers should leverage the 5V-tolerant I/O for robust interfaces and use ADC2 with computation for sensor averaging and oversampling in low-power sensor hubs.
Drop-in alternatives for PIC18F26Q10-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 PIC18F26Q10-I/SS (same form factor and footprint) — differing in ADC, Package, Operating Temperature, Program Memory (Flash), Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F25Q10-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F24Q10-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F26Q10-I/ML
✅ Drop-In✓ In Stock
$1.1 / Unit
View Datasheet →PIC18F26Q10-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F26K83-I/SS
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC18F26K42-I/SS
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC18F26Q10-I/SS Maximum Ratings & Electrical Characteristics
| Architecture | PIC18, 8-bit RISC, Harvard |
| Core | PIC18F |
| Program Memory (Flash) | 64 KB |
| Data SRAM | 4 KB |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 64 MHz (16 MIPS) |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| I/O Pins | 25 |
| ADC | 10-bit ADC2 with Computation |
| DAC | 5-bit and 10-bit selectable |
| Timers | 8-/16-bit with HLT and WWDT |
| Communication | 2x USART, 2x SPI, 2x I2C |
| CIPs | CLC, CWG, CRC/SCAN, HLT, WWDT |
| Package | 28-pin SSOP (5.30 mm body) |
| Operating Temperature | -40C to +85C (Industrial) |
| RoHS Status | Compliant |
| MSL Level | 1 (unlimited floor life at <30C/85% RH) |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
| Functional Safety | FuSa-ready (per PIC18-Q10 family) |
PIC18F26Q10-I/SS Pin Configuration
| Pin 1 | RA5/MCLR#/VPP — Digital I/O / Master Clear (reset) input / programming voltage |
| Pin 2 | RA0/AN0/C1IN0-/C2IN0-/DAC1OUT1 — Analog input 0 / DAC output |
| Pin 3 | RA1/AN1/C1IN1-/C2IN1-/DAC1REF+ — Analog input 1 / DAC reference |
| Pin 4 | RA2/AN2/DAC1REF-/C1IN0+/C2IN0+ — Analog input 2 / DAC reference |
| Pin 5 | RA3/AN3/C1IN1+/VREF+ — Analog input 3 / positive voltage reference |
| Pin 6 | RA4/AN4/C1OUT/T0CKI — Analog input 4 / Timer0 clock input |
| Pin 7 | RA5 — Digital I/O only (when MCLR disabled) |
| Pin 8 | RB0/INT0/CCP1 — External interrupt 0 / CCP1 PWM |
| Pin 9 | RB1/INT1/CCP2/C2OUT — External interrupt 1 / CCP2 |
| Pin 10 | RB2/INT2/CLC1OUT — External interrupt 2 / CLC1 output |
| Pin 11 | RB3/INT3/CLC2OUT — External interrupt 3 / CLC2 output |
| Pin 12 | RB4/IOC — Interrupt-on-change |
| Pin 13 | RB5/IOC — Interrupt-on-change |
| Pin 14 | RA6 — Digital I/O |
| Pin 15 | RA7 — Digital I/O |
| Pin 16 | RC0/SOSCO — Digital I/O / secondary oscillator output |
| Pin 17 | RC1/SOSCI — Digital I/O / secondary oscillator input |
| Pin 18 | RC2/CCP3 — Digital I/O / CCP3 |
| Pin 19 | VSS — Ground |
| Pin 20 | RC3/SCL1/SCK1 — I2C1 clock / SPI1 clock |
| Pin 21 | RB6/ICSPCLK/ICDCLK — Digital I/O / ICSP clock |
| Pin 22 | RB7/ICSPDAT/ICDDAT — Digital I/O / ICSP data |
| Pin 23 | RC4/SDA1/SDI1 — I2C1 data / SPI1 input |
| Pin 24 | RC5/SDO1 — SPI1 output |
| Pin 25 | RC6/TX1/CK1 — USART1 transmit / clock |
| Pin 26 | RC7/RX1/DT1 — USART1 receive / data |
| Pin 27 | OSC1/CLKI — Crystal oscillator input / external clock |
| Pin 28 | OSC2/CLKO — Crystal oscillator output / clock output |
| Pin PAD | VDD — Positive supply 1.8V-5.5V (note: SSOP-28 has no exposed pad; VDD is internal pin, see datasheet) |
Typical Applications
PIC18F26Q10-I/SS is suitable for 7 applications: Industrial Sensor Node, Automotive LIN Slave Node, Touch and Proximity Interface, IoT Edge Device Controller, Consumer Appliance Control, Motor Control and PWM Generation, Functional-Safety (FuSa) Sensor Hub.
Industrial Sensor Node
The PIC18F26Q10-I/SS fits industrial sensor nodes because its 5 V-tolerant I/O and 1.8-5.5 V supply range let it interface directly with legacy 4-20 mA loops and 5 V sensors without level shifters, reducing BOM. Its 10-bit ADC2 with computation supports hardware oversampling and averaging for thermocouple and pressure-sensor reading, while 64 KB Flash and 4 KB SRAM hold small Modbus RTU and PID-control stacks. At 64 MHz/16 MIPS it can sample multiple analog channels at sub-millisecond intervals with deterministic latency that 32-bit Cortex-M0 designs often struggle to match.
Recommended
Automotive LIN Slave Node
The PIC18F26Q10-I/SS is a strong fit for LIN 2.x slave nodes because its integrated USART can run LIN protocol in software, and the 5 V I/O survives automotive transients when paired with a simple TVS clamp. The CWG peripheral generates complementary PWM for small brushed-motor or LED-driver stages, while 256 B EEPROM stores node configuration and baud-rate settings that survive battery disconnect. With the I-grade -40 to +85 C range it covers cabin and underhood-adjacent locations in most passenger-car platforms.
Recommended
Touch and Proximity Interface
The PIC18F26Q10-I/SS supports mTouch capacitive-touch sensing through its ADC2 and CLC peripherals that can debounce and shape touch events in hardware, freeing the CPU for back-end comms. With 25 GPIO and configurable logic cells, the device can drive up to 12 button or slider electrodes while still exposing UART for diagnostic reporting. The integrated CRC/SCAN block adds memory integrity checks for functional-safety-conscious appliance and white-goods designs.
Recommended
IoT Edge Device Controller
The PIC18F26Q10-I/SS serves as an edge-device MCU in IoT designs because its 16 MIPS core, 4 KB SRAM, and two USART peripherals can host an AT-command parser for an external Wi-Fi or BLE module while running local sensor-fusion code. The 256-byte EEPROM stores network credentials, and the Windowed WWDT and CRC/SCAN peripherals deliver the diagnostics that Wi-Fi/BLE SoC designs typically lack. The XLP nanoWatt technology with multiple sleep modes lets battery-powered nodes run for years on a single CR2032.
Recommended
Consumer Appliance Control
The PIC18F26Q10-I/SS controls small consumer appliances because its CWG, ADC2, and 25 GPIO pins can directly drive triac gates, read thermistor dividers, and scan keypads without external glue logic. Industrial-grade I-temp range covers kitchen-environment temperatures, while 5 V-tolerant I/O simplifies interfacing with mains-isolated low-voltage power supplies. The 64 KB Flash accommodates user-interface state machines and capacitive-touch firmware that mid-range 8-bit MCUs often cannot.
Recommended
Motor Control and PWM Generation
The PIC18F26Q10-I/SS drives small DC and stepper motors because its CWG peripheral generates complementary PWM with programmable dead-time, and the 10-bit DAC provides analog references for closed-loop current control. With 16 MIPS throughput and 4 KB SRAM it can host a basic Field-Oriented Control (FOC) loop for sub-100 W motors while leaving room for CAN or UART telemetry. The 5 V I/O simplifies gate-driver interfacing for low-voltage FET bridges.
Recommended
Functional-Safety (FuSa) Sensor Hub
The PIC18F26Q10-I/SS is designed for functional-safety sensor hubs because it integrates the CIP-based CRC/SCAN, WWDT, and HLT peripherals that detect memory faults and timing anomalies without external supervision ICs. Per the Microchip PIC18-Q10 family brief, the device supports IEC 60730 Class B safety routines in firmware and the I-grade -40 to +85 C range covers most residential and light-industrial safety applications. 64 KB Flash and 4 KB RAM hold self-test routines, sensor diagnostics, and Class B libraries.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F26Q10-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F25Q10-I/SS | PIC18F24Q10-I/SS | PIC18F26Q10-E/SS | PIC18F26K83-I/SS | PIC18F26K42-I/SS |
|---|---|---|---|---|---|---|
| Package | SSOP-28 (5.30 mm) | SSOP-28 (same) | SSOP-28 (same) | SSOP-28 (same) | SSOP-28 (same) | SSOP-28 (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB | 32 KB (-50%) | 16 KB (-75%) | 64 KB (same) | 64 KB (same) | 64 KB (same) |
| SRAM | 4 KB | 2 KB (-50%) | 1 KB (-75%) | 4 KB (same) | 4 KB (same) | 4 KB (same) |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Maximum CPU Speed | 64 MHz (16 MIPS) | 64 MHz (same) | 64 MHz (same) | 64 MHz (same) | 64 MHz (same) | 64 MHz (same) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +125C (Extended) | -40C to +85C | -40C to +85C |
| ADC | 10-bit ADC2 with Computation | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC2 | 12-bit ADC | 12-bit ADC |
| CIP Generation | Q10 (CLC, CWG, CRC/SCAN, HLT) | Q10 CIPs | Q10 CIPs | Q10 CIPs | K83 CIPs | K42 CIPs |
Key Differentiators
- Newest CIP generation (Q10) with ADC2 computation, CRC/SCAN, and HLT for functional-safety firmware (vs PIC18F26K83-I/SS)
- Industrial temperature grade plus extended CIP set for safety-conscious 5 V designs (vs PIC18F26K42-I/SS)
- Full 64 KB Flash with same SSOP-28 pinout, no PCB rework required (vs PIC18F25Q10-I/SS)
Design Notes
Power the PIC18F26Q10-I/SS from a regulated 3.3 V or 5 V rail with a 100 nF decoupling capacitor placed within 5 mm of the VDD pin and a bulk 10 uF tantalum or ceramic capacitor on the same rail. The 1.8-5.5 V supply range lets you run the device directly from a single-cell Li-ion battery (with an LDO) or a 5 V USB rail; use MCP1700 for a low-quiescent LDO if total system Iq must stay below 1.6 uA in sleep.
Place the 28-SSOP footprint on a 0.65 mm pitch with 0.4 mm wide traces and 0.2 mm solder mask sliver. Reserve a ground pour under the device and stitch it with multiple vias around the SSOP body. Keep the ICSP programming header (RB6/RB7/MCLR/VDD/VSS) accessible on the board edge so that firmware can be updated in production without disassembling the enclosure.
Do not assume RA5 is a normal GPIO by default - on the PIC18F26Q10-I/SS it is multiplexed with MCLR# and is input-only when MCLR is enabled. Use the CONFIG5L register to disable MCLR on RA5 if you need a normal digital I/O on that pin. Estimated: enabling MCLR adds ~50 uA of quiescent draw, which matters in battery-powered sensor nodes.
When using the 64 MHz internal HFINTOSC, place a 10 nF capacitor on the VDD pin and keep the analog traces (RA0-RA4) short and guarded to avoid ADC noise pickup. The 10-bit ADC2 with computation provides built-in oversampling; enable hardware averaging in the ADCON2 register to push effective resolution to ~12 bits at the cost of conversion rate.
Compliance Information
RoHS compliant per Microchip product page. Industrial -40C to +85C temperature grade (I-suffix); AEC-Q100 is not applicable to I-grade; choose E-grade or V-grade for automotive qualification. Functional-safety (FuSa) ready per PIC18-Q10 family documentation.
