PIC18F26K40-E/MV - 64KB Flash 8-bit MCU | Microchip XLP
MPN: PIC18F26K40-E/MV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.39 | $2.39 |
| 10 | $2.15 | $21.50 |
| 100 | $1.89 | $189.00 |
| 500 | $1.71 | $855.00 |
| 1,000 | $1.55 | $1,550.00 |
PIC18F26K40-E/MV Overview
A microcontroller (MCU) is an integrated circuit combining a CPU core, program memory (Flash/ROM), data memory (RAM), and programmable peripherals on a single die. Within the broader taxonomy, the PIC18F26K40 belongs to the 8-bit MCU category -> PIC18 family -> low-power XLP subfamily. The PIC18 architecture uses an enhanced Harvard design with separate program and data buses, allowing simultaneous fetch and read.
Key features include eXtreme Low-Power (XLP) technology, 1.8V-5.5V wide operating voltage supporting both 3.3V and 5V rails, 64 MHz internal oscillator, and 25 mA source/sink per I/O. The integrated Peripheral Pin Select (PPS) allows remapping of digital peripherals to any I/O, simplifying PCB layout.
Typical applications include low-power IoT sensor nodes, battery-powered devices, consumer appliances, automotive body electronics, capacitive touch user interfaces, motor control (BLDC/PMSM using PWM + CWG), and industrial control with CRC/SCAN for functional safety. The extended -40C to +125C temperature range supports rugged industrial environments.
Design tip - the PPS feature reduces external wiring complexity by mapping peripherals after layout; however, PPS registers must be configured before peripheral use. For sleep current minimization, leverage the nanoWatt XLP modes with the IDLE/DOZE/PMD power management module.
This page synthesizes distributor pricing, drop-in alternative listings, and practical design considerations that go beyond the manufacturer datasheet, helping engineers select and source the right MCU faster.
Drop-in alternatives for PIC18F26K40-E/MV — 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 PIC18F26K40-E/MV (same form factor and footprint) — differing in ADC, EEPROM, Package, Operating Temperature, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F26K40-I/MV
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC18F25K40-E/MV
✅ Drop-In✓ In Stock
$1.65 / Unit
View Datasheet →PIC18F26K40-E/MLVAO
✅ Drop-In✓ In Stock
$1.74 / Unit
View Datasheet →PIC18F26K40-E/MLVAO
✅ Drop-In✓ In Stock
$1.74 / Unit
View Datasheet →PIC18F26K40-E/MV Maximum Ratings & Electrical Characteristics
| Manufacturer | Microchip Technology |
| Series | PIC 18K |
| Core | PIC18 (8-bit) |
| Maximum Clock Frequency | 64 MHz |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data RAM | 4 KB |
| EEPROM | 256 B |
| Operating Voltage Range | 1.8 V to 5.5 V |
| Package | 28-UQFN (4x4 mm) |
| Pin Count | 28 |
| Operating Temperature Range | -40C to +125C (Extended, -E suffix) |
| ADC | 10-bit ADC with Computation (ADCC) |
| DAC | 5-bit DAC |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC18F26K40-E/MV Pin Configuration
| Pin 1 | RA0 — Analog/Digital I/O - Port A bit 0 |
| Pin 2 | RA1 — Analog/Digital I/O - Port A bit 1 |
| Pin 3 | RA2 — Analog/Digital I/O - Port A bit 2 |
| Pin 4 | RA3 — Analog/Digital I/O - Port A bit 3 |
| Pin 5 | RA4 — Analog/Digital I/O - Port A bit 4 |
| Pin 6 | RA5 — Analog/Digital I/O - Port A bit 5 |
| Pin 7 | RA6 — Analog/Digital I/O - Port A bit 6 |
| Pin 8 | RA7 — Analog/Digital I/O - Port A bit 7 |
| Pin 9 | VSS — Ground reference |
| Pin 10 | VDD — Positive supply voltage (1.8V-5.5V) |
| Pin 11 | RB0 — Analog/Digital I/O - Port B bit 0 |
| Pin 12 | RB1 — Analog/Digital I/O - Port B bit 1 |
| Pin 13 | RB2 — Analog/Digital I/O - Port B bit 2 |
| Pin 14 | RB3 — Analog/Digital I/O - Port B bit 3 |
| Pin 15 | RB4 — Analog/Digital I/O - Port B bit 4 |
| Pin 16 | RB5 — Analog/Digital I/O - Port B bit 5 |
| Pin 17 | RB6 — Analog/Digital I/O - Port B bit 6 / ICS PGC |
| Pin 18 | RB7 — Analog/Digital I/O - Port B bit 7 / ICS PGD |
| Pin 19 | RC0 — Analog/Digital I/O - Port C bit 0 |
| Pin 20 | RC1 — Analog/Digital I/O - Port C bit 1 |
| Pin 21 | RC2 — Analog/Digital I/O - Port C bit 2 |
| Pin 22 | RC3 — Analog/Digital I/O - Port C bit 3 |
| Pin 23 | RC4 — Analog/Digital I/O - Port C bit 4 |
| Pin 24 | RC5 — Analog/Digital I/O - Port C bit 5 |
| Pin 25 | RC6 — Analog/Digital I/O - Port C bit 6 |
| Pin 26 | RC7 — Analog/Digital I/O - Port C bit 7 |
| Pin 27 | VSS — Ground reference (second pad) |
| Pin 28 | VDD — Positive supply (second pad) |
Typical Applications
PIC18F26K40-E/MV is suitable for 6 applications: Low-Power IoT Sensor Node, Capacitive Touch User Interface, Automotive Body Electronics, Industrial Control / Sensor Hub, Small BLDC / PMSM Motor Control, Battery-Operated Consumer Appliance.
Low-Power IoT Sensor Node
The PIC18F26K40-E/MV is purpose-built for battery-powered IoT sensor nodes, leveraging eXtreme Low-Power (XLP) technology that drops supply current below 50 nA in sleep mode. With 64 KB Flash it runs Microchip's TCP/IP, LoRaWAN, or proprietary mesh stacks, while the integrated 10-bit ADCC samples temperature, humidity, or gas sensors without waking the CPU for digital averaging. The 1.8V-5.5V range accepts Li-ion, alkaline, or energy-harvested rails directly. The PIC18F26K40-E/MV's nanoWatt XLP modes and Peripheral Pin Select give designers flexibility to route SPI/I2C sensors to any GPIO, minimizing PCB area and enabling coin-cell operation for years.
Recommended
Capacitive Touch User Interface
The PIC18F26K40-E/MV excels at capacitive touch interfaces thanks to its integrated 10-bit ADC with Computation (ADCC) module, which automates Capacitive Voltage Divider (CVD) techniques for robust proximity and touch detection. The hardware CVD engine offloads touch scanning from the CPU, enabling low-latency response on up to 24 touch channels while consuming minimal current. With 64 KB Flash the part stores complex gesture libraries and Microchip's mTouch firmware. The 4x4 mm UQFN-28 footprint fits behind decorative overlays in appliance and consumer front panels, and the -40C to +125C extended temperature range supports outdoor and industrial HMI use.
Recommended
Automotive Body Electronics
The PIC18F26K40-E/MV operates across -40C to +125C, making it suitable for automotive body electronics modules such as seat controllers, mirror adjusters, interior lighting, and door modules. Its 64 KB Flash supports CAN-capable firmware via external MCP2515/MCP2551, and the CWG peripheral generates complementary PWM for driving half-bridges or LED backlights. The CRC/SCAN module provides memory integrity checking for functional safety, while the Windowed Watchdog Timer enforces strict service-window timing. Although the PIC18F26K40-E/MV is not AEC-Q100 qualified, its extended temperature and rich CIP peripherals make it a strong candidate for non-safety body controllers.
Recommended
Industrial Control / Sensor Hub
In industrial sensor hubs and programmable logic controllers, the PIC18F26K40-E/MV aggregates analog and digital signals with its 10-bit ADCC, 5-bit DAC, comparators, and EUSART/SPI/I2C peripherals. The Windowed WDT (WWDT) and CRC/SCAN module enable IEC 61508-aligned functional safety designs for non-safety-critical loops. The 64 KB Flash supports Modbus RTU or IO-Link device stacks, and the PPS peripheral remapping simplifies routing to opto-isolated I/O channels. With 1.8V-5.5V supply tolerance, the same hardware accepts 3.3V logic or 5V industrial rails.
Recommended
Small BLDC / PMSM Motor Control
The PIC18F26K40-E/MV drives small BLDC or PMSM motors through its Complementary Waveform Generator (CWG) and CCP/PWM modules, producing dead-band-managed complementary outputs with hardware fault shutoff. With 64 MHz clock and dedicated 10-bit ADC, the device samples back-EMF or FOC current-shunt feedback at adequate rates for low-RPM fans and pumps. The CWG peripheral handles the complementary switching without CPU intervention, freeing cycles for the control loop. The extended temperature range and 4 KB RAM accommodate closed-loop field-oriented control firmware for 12V/24V battery-powered appliances.
Recommended
Battery-Operated Consumer Appliance
Consumer appliances such as electric toothbrushes, shavers, kitchen scales, and remote controls benefit from the PIC18F26K40-E/MV's nanoWatt XLP sleep currents and 1.8V-5.5V supply range. With 64 KB Flash the device handles Bluetooth Low Energy beacon firmware via external modules, BLE pairing logic, and rich user interface feedback. The integrated ADCC reads battery voltage for accurate fuel gauging and runs through charge cycles without external ADC chips. The compact 4x4 mm UQFN-28 package fits into space-constrained ergonomic enclosures, while the -40C to +125C extended range tolerates kitchen and outdoor environments.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F26K40-E/MV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F26K40-I/MV | PIC18F25K40-E/MV | PIC18F26K40-E/ML |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-UQFN (4x4 mm) | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same | 28-QFN (6x6 mm) - different mechanical outline |
| Flash Memory | 64 KB | 64 KB | 32 KB (-50%) | 64 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB |
| Operating 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 |
| Operating Temperature | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) |
| Max Clock Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Approx. Unit Price (qty 1, as of 2026-09-27) | $2.39 | ~$2.30 | ~$2.20 | ~$2.50 |
| ADC | 10-bit ADCC | 10-bit ADCC | 10-bit ADCC | 10-bit ADCC |
Key Differentiators
- Extended -40C to +125C temperature grade in same UQFN-28 package as industrial variant (vs PIC18F26K40-I/MV)
- 64 KB Flash double the F25K40 family (vs PIC18F25K40-E/MV)
- Same die as -E/ML with smaller 4x4 mm UQFN package (vs PIC18F26K40-E/ML)
Design Notes
Leverage XLP nanoWatt sleep modes to drop supply current below 50 nA in deep sleep with WDT and RTCC running. Use the Peripheral Module Disable (PMD) registers to gate unused peripherals before sleep; the IDLE/DOZE/PMD module lets you selectively power down UART, ADC, comparators, and PWM independently. The 1.8V-5.5V wide VDD range eliminates the need for an LDO in many single-cell Li-ion designs.
The 4x4 mm UQFN-28 package dissipates heat primarily through the exposed pad. Solder the EP to a continuous PCB ground pour with thermal vias to the inner ground plane. At 64 MHz clock and 5.5V supply the device draws approximately 15 mA, yielding ~80 mW dissipation; thermal rise above ambient is modest (~10C) with proper layout. Do not route signals under the EP - keep-out zone prevents solder wicking defects.
Decouple VDD with a 100 nF ceramic capacitor placed within 3 mm of the supply pin, plus a bulk 4.7 uF tantalum or ceramic capacitor near the IC. The PIC18F26K40 has two VDD/VSS pairs (pins 9/10 and pins 27/28) that must each be decoupled. For ICS programming (PGC/PGD on RB6/RB7), provide test points or a 2x5 0.05 inch header for in-circuit serial programming and debugging.
Configuration word settings must be set before code execution begins - an unconfigured part will run with default oscillator (internal 4 MHz LFINTOSC). Always set the FEXTOSC, RSTOSC, and CLKOUTEN bits via #pragma config in source. The Peripheral Pin Select (PPS) module must be unlocked (PPSLOCK = 0) before remapping peripherals; failure to lock PPS after configuration can cause unintended remapping during runtime.
Compliance Information
RoHS compliant per Microchip product documentation. Not AEC-Q100 qualified - for AEC-Q100 applications use the PIC18F26K40-E/MLVAO automotive variant or PIC18F46K40 family automotive parts.
