PIC16F1826-I/P - 8-bit 32MHz 3.5KB Flash MCU 18-PDIP | Microchip
MPN: PIC16F1826-I/P β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.34 | $2.34 |
| 10 | $2.1 | $21.00 |
| 100 | $1.85 | $185.00 |
| 500 | $1.65 | $825.00 |
| 1,000 | $1.48 | $1,480.00 |
PIC16F1826-I/P Overview
A PIC microcontroller is a compact programmable logic device built on a Harvard-architecture RISC core with integrated Flash program memory. The PIC16F1826 belongs to the sub-category of microcontrollers (MCUs), under embedded processors, ICs, and semiconductors. nanoWatt XLP technology enables sleep currents down to tens of nanoamps, allowing battery-powered applications to operate for years on a single cell.
Key features include an integrated 32MHz internal oscillator, a 16-bit ADC with computation, a Digital Signal Modulator (DSM) module, an mTouch capacitive sensing peripheral, MI2C/SPI/EUSART with auto-baud peripherals, an integrated temperature indicator, and multiple power-managed operating modes. The device supports 1.8V to 5.5V operation across the industrial -40C to +85C temperature range.
The PIC16F1826 utilizes an enhanced mid-range 8-bit RISC core that executes most instructions in a single 200ns cycle at 32MHz, providing deterministic interrupt latency for real-time control. The integrated Core Independent Peripherals (CIPs) such as the DSM, CWG, and NCO offload signal generation from the CPU, simplifying firmware and reducing BOM cost.
Typical applications include consumer electronics, low-power remote sensors, home automation nodes, LED lighting controllers, capacitive touch user interfaces, and battery-powered IoT devices. The wide 1.8V-5.5V operating range and nanoWatt XLP make it well-suited for energy-harvesting designs.
When designing with the PIC16F1826, ensure the ICSP programming pins (RB6/RB7) are accessible and not permanently driven by external circuitry. The internal 32MHz oscillator can be trimmed using the OSCTUNE register; for USB orlin applications, an external crystal is recommended for precision timing.
This page synthesizes distributor pricing, drop-in alternatives from the same PIC16F18xx family, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16F1826-I/P β 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 PIC16F1826-I/P (same form factor and footprint) β differing in Package, ADC, I/O Pins, Core Architecture, Instruction Set.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16F1823-I/P
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
PIC16F1824-I/P
β Drop-Inβ In Stock
$1.48 / Unit
View Datasheet βPIC16F1825-I/P
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1826-I/P Maximum Ratings & Electrical Characteristics
| Core | PIC16 enhanced mid-range 8-bit RISC |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| Data SRAM | 256 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Instruction Execution Time | 200 ns (single cycle) |
| Supply Voltage Range | 1.8 V to 5.5 V |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| I/O Pins | 17 |
| ADC | 12-channel 10-bit |
| Communication Peripherals | MI2C, SPI, EUSART w/auto-baud |
| Timers | 4 x 8-bit, 1 x 16-bit |
| PWM Modules | 2 (10-bit ECCP + CCP) |
| Package | 18-pin PDIP (DIP-18) |
| Mounting Type | Through-Hole |
| Low-Power Technology | nanoWatt XLP |
| Touch Sensing | Integrated mTouch capacitive sensing |
| RoHS Status | Compliant |
PIC16F1826-I/P Pin Configuration
| Pin 1 | RA5/T1CKI/OSC1/CLKIN β Port A bit 5 / Timer1 clock input / Oscillator input |
| Pin 2 | RA4/AN3/T1G/OSC2/CLKOUT β Port A bit 4 / ADC input / Timer1 gate / Oscillator output |
| Pin 3 | RA3/MCLR/VPP β Port A bit 3 / Master Clear (Reset) input / Programming voltage |
| Pin 4 | RA2/AN2 β Port A bit 2 / ADC input |
| Pin 5 | RA1/AN1 β Port A bit 1 / ADC input |
| Pin 6 | RA0/AN0 β Port A bit 0 / ADC input |
| Pin 7 | VSS β Ground reference |
| Pin 8 | RB7/ICSPDAT β Port B bit 7 / In-Circuit Serial Programming data |
| Pin 9 | RB6/ICSPCLK β Port B bit 6 / In-Circuit Serial Programming clock |
| Pin 10 | RB5/AN11 β Port B bit 5 / ADC input |
| Pin 11 | RB4/AN10 β Port B bit 4 / ADC input |
| Pin 12 | RB3/CCP2 β Port B bit 3 / Capture/Compare/PWM 2 |
| Pin 13 | RB2/SDI/SDA β Port B bit 2 / SPI data in / I2C data |
| Pin 14 | RB1/SCK/SCL β Port B bit 1 / SPI clock / I2C clock |
| Pin 15 | RB0/SDO β Port B bit 0 / SPI data out |
| Pin 16 | RC7/AN9 β Port C bit 7 / ADC input |
| Pin 17 | RC6/AN8 β Port C bit 6 / ADC input |
| Pin 18 | VDD β Positive supply voltage (1.8V-5.5V) |
Typical Applications
PIC16F1826-I/P is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Capacitive Touch User Interfaces, LED Lighting Controllers, Consumer Appliance Control, Remote Controls and Wireless HIDs, Industrial Sensor Signal Conditioning.
Battery-Powered IoT Sensor Nodes
The PIC16F1826-I/P fits battery-powered IoT sensor nodes through nanoWatt XLP technology delivering sleep currents around 20 nA typical, and a wide 1.8V-5.5V supply range enabling direct operation from single-cell alkaline, NiMH, or Li-ion chemistries without boost conversion. The 32MHz internal oscillator eliminates external crystal cost and start-up time, while MI2C/SPI/EUSART peripherals connect directly to environmental sensors, BLE modules, or LoRa transceivers. Practical deployments achieve 3-5 years on a single CR2032 cell when averaging sensor reads every few seconds with the device sleeping between events.
Recommended
Capacitive Touch User Interfaces
The integrated mTouch capacitive sensing module makes the PIC16F1826-I/P ideal for capacitive touch interfaces in consumer appliances, kitchen equipment, and industrial control panels. The mTouch peripheral handles up to 12 touch channels through dedicated hardware, reducing firmware complexity and CPU overhead compared to software-only implementations. Combined with the 12-channel 10-bit ADC and DSM (Digital Signal Modulator), engineers can build slider, wheel, and proximity-sensing interfaces that operate reliably across the 1.8V-5.5V supply range in noisy environments.
Recommended
LED Lighting Controllers
The PIC16F1826-I/P suits LED lighting controller applications through its 10-bit ECCP/CCP PWM modules delivering 16-bit resolution when chained, plus the integrated DSM for flicker-free dimming and color-mixing protocols. The 32MHz instruction cycle supports DMX512, DALI, or WS2812-style LED strip driving with tight timing margins. The 1.8V-5.5V supply range simplifies integration with constant-current LED driver stages, and the nanoWatt XLP sleep modes extend battery life in portable accent lighting products.
Recommended
Consumer Appliance Control
The PIC16F1826-I/P powers consumer appliance control boards through its robust 8-bit RISC core, 3.5 KB Flash for control algorithms, and integrated peripherals handling motor PWM, sensor reading, and user I/O without external glue logic. The enhanced mid-range core executes most instructions in a single 200 ns cycle, enabling deterministic timing for safety-critical loops in coffee machines, washing machines, and small kitchen appliances. Industrial -40C to +85C operation covers most residential environments.
Recommended
Remote Controls and Wireless HIDs
The PIC16F1826-I/P serves remote control and wireless HID devices through its nanoWatt XLP sleep modes (down to 20 nA), integrated EUSART for IR transmission or 433/868 MHz OOK/FSK link interfacing, and 3.5 KB Flash holding complex button-mapping protocols. Battery life typically reaches 1-3 years on a single CR2032 coin cell for TV remotes and presentation clickers. The 18-pin PDIP footprint is ideal for hand-held product enclosures and through-hole assembly in low-volume manufacturing.
Recommended
Industrial Sensor Signal Conditioning
The PIC16F1826-I/P handles industrial sensor signal conditioning through its Digital Signal Modulator (DSM), 10-bit resolution, and Core Independent Peripherals that perform mixing, filtering, and demodulation without CPU intervention. The 12-channel ADC with computation supports multi-sensor input from strain gauges, thermocouples, and 4-20 mA loops. Industrial -40C to +85C operation covers factory floor conditions, and the 32 MHz core provides deterministic interrupt latency for real-time control loops in process automation nodes.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1826-I/P β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1823-I/P | PIC16F1824-I/P | PIC16F1825-I/P |
|---|---|---|---|---|
| Package | 18-pin PDIP (DIP-18) | 18-pin PDIP (DIP-18) - same | 18-pin PDIP (DIP-18) - same | 18-pin PDIP (DIP-18) - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Program Flash | 3.5 KB | 2 KB (-43%) | 7 KB (+100%) | 14 KB (+300%) |
| Data RAM | 256 B | 128 B (-50%) | 256 B (equal) | 1024 B (+300%) |
| Data EEPROM | 256 B | 64 B (-75%) | 256 B (equal) | 256 B (equal) |
| Maximum CPU Frequency | 32 MHz | 32 MHz (equal) | 32 MHz (equal) | 32 MHz (equal) |
| Supply Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V (equal) | 1.8 V to 5.5 V (equal) | 1.8 V to 5.5 V (equal) |
| I/O Pins | 17 | 17 (equal) | 17 (equal) | 17 (equal) |
Key Differentiators
- Larger EEPROM at no extra cost (vs PIC16F1823-I/P)
- Digital Signal Modulator integrated (vs PIC16F1824-I/P)
- mTouch capacitive sensing integrated (vs PIC16F1825-I/P)
Design Notes
When laying out the PIC16F1826-I/P 18-pin PDIP, place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 18) to suppress switching noise. Add a bulk 10 uF tantalum or ceramic capacitor near the supply rail for load transients. Keep the MCLR/VPP pin (pin 3) traces short and avoid routing high-frequency signals under the ICSPDAT/ICSPCLK lines (RB7/RB6) to prevent programming interference during in-circuit serial programming.
The PIC16F1826-I/P supports nanoWatt XLP sleep currents around 20 nA typical at 3 V, but only when unused peripherals are explicitly disabled in firmware. Engineers should set all unused peripherals to OFF in their respective control registers before entering SLEEP, and use the WDT time-out interrupt (rather than a busy loop) to wake the device. Estimated: assuming VDD = 3.0 V, sleep mode with WDT disabled, ambient temperature 25 C, the datasheet figure of 20 nA is achievable.
Do not float the MCLR pin (pin 3) - always tie it to VDD through a 10 kOhm pull-up resistor, or directly to VDD in production designs. A floating MCLR causes intermittent resets in noisy environments. Also ensure ICSPDAT (RB7) and ICSPCLK (RB6) are not permanently pulled low by external circuitry during programming; use jumpers or tri-state buffers in production programming fixtures.
Route the external crystal or resonator traces (if used instead of the internal 32 MHz oscillator) symmetrically with short, equal-length traces to OSC1/CLKIN (RA5) and OSC2/CLKOUT (RA4). Keep the crystal case grounded to the VSS plane, and surround the oscillator traces with a grounded guard ring to minimize EMI coupling to adjacent analog inputs.
Compliance Information
RoHS and REACH compliant per Microchip product page. Industrial -40C to +85C grade (I/P suffix); not AEC-Q100 qualified - choose PIC16F1826-E/P for extended temperature range.
