PIC16F1823-I/SL - 8-bit 32MHz XLP MCU, 3.5KB Flash, 14-SOIC
MPN: PIC16F1823I/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.45 | $1.45 |
| 10 | $1.28 | $12.80 |
| 100 | $1.02 | $102.00 |
| 500 | $0.86 | $430.00 |
| 1,000 | $0.75 | $750.00 |
| 3,000 | $0.68 | $2,040.00 |
PIC16F1823I/SL Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program storage, volatile data memory, and dedicated peripherals such as timers, ADC, communication interfaces, and I/O. Within the broader semiconductor taxonomy, an MCU belongs to the integrated circuit family, the logic IC sub-category, and the microcontroller sub-class. The PIC16F1823 belongs to Microchip's PIC16F1xxx enhanced mid-range family, which improves on the baseline PIC16 baseline family by adding more peripherals, more interrupt sources, and an instruction set optimized for C compilers.
Key features of the PIC16F1823 include nanoWatt XLP extreme-low-power technology for battery-friendly designs, a 10-bit ADC with up to 9 channels, enhanced PWM, MSSP for SPI/I2C, EUSART, and multiple timer modules. The device also supports peripheral pin select (PPS) on selected I/O, allowing flexible peripheral-to-pin mapping. Integrated debug support means no separate debug header is required; programming and debug are accessible via PICkit 3, MPLAB ICD 3, or the MPLAB X IDE tool chain.
The PIC16F1823 architecture uses a 14-bit instruction word, a 16-level hardware stack with overflow/underflow reset, and 49 instructions, providing an excellent balance of deterministic real-time control and code density. Internal oscillator calibration and a wide supply range simplify BOM cost and board layout in space-constrained designs.
Typical applications include low-power sensor nodes, battery-powered IoT end nodes, simple home appliances, fan/HVAC controllers, LED lighting controllers, and general-purpose logic replacement in industrial control boards. The wide supply range and XLP technology make it especially suitable for energy-harvesting or always-on applications.
When designing with this MCU, observe the brown-out reset (BOR) and watchdog timer (WDT) configuration bits during programming. For low-power designs, switch to the LF variant if your supply is below 2.5V or you need the deepest sleep modes. Always validate pin assignments against the SOIC-14 pinout in the datasheet before finalizing the PCB layout.
This page synthesizes distributor pricing as of 2026-10-09, drop-in replacement candidates sourced from the same Microchip family, and practical design notes that go beyond the manufacturer datasheet alone, enabling faster component selection and risk-aware sourcing.
Drop-in alternatives for PIC16F1823I/SL — 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 PIC16F1823I/SL (same form factor and footprint) — differing in Package, ADC, Core Architecture, Communication, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1823-E/SL
✅ Drop-In✓ In Stock
$0.55 / Unit
View Datasheet →PIC16LF1823-I/SL
✅ Drop-In✓ In Stock
$0.95 / Unit
View Datasheet →PIC16F1823T-I/SL
✅ Drop-In✓ In Stock
$0.66 / Unit
View Datasheet →PIC16F1823-I/ST
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.85 / Unit
View Datasheet →PIC16F15325-I/SL
✅ Drop-In✓ In Stock
$0.95 / Unit
View Datasheet →PIC16F1823I/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 enhanced mid-range 8-bit |
| CPU Frequency | 32 MHz max |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| Data SRAM | 128 bytes |
| Data EEPROM | 256 bytes |
| Supply Voltage (VDD) | 2.5 V to 5.5 V |
| I/O Pins | 12 |
| Package | SOIC-14 (SL) |
| Operating Temperature (Industrial -I) | -40C to +85C |
| ADC | 10-bit, up to 9 channels |
| Communication | 1x EUSART, 1x MSSP (SPI/I2C) |
| PWM Modules | Enhanced CCP, multiple PWM outputs |
| Timers | Timer0, Timer1, Timer2 |
| Low-Power Technology | nanoWatt XLP |
| Debug Support | Integrated ICD; PICkit 3 / MPLAB ICD 3 compatible |
| Instruction Set | 49 instructions, 14-bit word |
| Hardware Stack | 16 levels with overflow/underflow reset |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16F1823I/SL Pin Configuration
| Pin 1 | RA5 — Digital I/O / DT / HIN / OUT / IOC |
| Pin 2 | RA4 — Digital I/O / T0CKI / AN3 / SDI / SDA |
| Pin 3 | RA3 — Digital I/O / MCLR / VPP (reset, active-low) |
| Pin 4 | RC5 — Digital I/O / CCP1 / P1A |
| Pin 5 | RC4 — Digital I/O / C2OUT / SRQ |
| Pin 6 | RC3 — Digital I/O / AN7 / SCL / SCK |
| Pin 7 | RC2 — Digital I/O / AN6 / DAC1 / SS |
| Pin 8 | RC1 — Digital I/O / AN5 / SDI / SDA |
| Pin 9 | RC0 — Digital I/O / AN4 / VIN+ / SCK |
| Pin 10 | RA2 — Digital I/O / AN2 / T0CKI / INT |
| Pin 11 | RA1 — Digital I/O / AN1 / ICSPCLK |
| Pin 12 | RA0 — Digital I/O / AN0 / ICSPDAT |
| Pin 13 | VSS — Ground reference |
| Pin 14 | VDD — Positive supply (2.5V to 5.5V) |
Typical Applications
PIC16F1823I/SL is suitable for 7 applications: Battery-Powered IoT Sensor Node, LED Lighting Controller, Small Home Appliance Control, HVAC Fan and Blower Controller, Industrial Logic Replacement Board, Automotive Accessory Controller (Non-Safety), USB HID Consumer Device Interface.
Battery-Powered IoT Sensor Node
The PIC16F1823-I/SL's nanoWatt XLP low-power technology makes it a strong fit for battery-powered IoT sensor nodes where sleep current dominates the energy budget. With sub-1 uA typical sleep current and an integrated 10-bit ADC (up to 9 channels), the MCU can wake periodically to digitize sensor data, perform threshold checks, and transmit over EUSART or MSSP before returning to sleep. The 32MHz CPU and 3.5KB Flash handle modest sensor-fusion and edge-processing tasks, while the 2.5V-5.6V supply range accommodates both 3.3V coin cells and 5V line power for hybrid nodes. Pairing the PIC16F1823 with an MCP9808 temperature sensor or a low-power RF module yields a sub-1 mA average consumption node suitable for multi-year coin-cell operation.
Recommended
LED Lighting Controller
The PIC16F1823-I/SL is well matched to LED lighting controllers requiring PWM dimming, color mixing, and DMX or 0-10V control. Its enhanced CCP and PWM modules generate multiple PWM channels for RGBW LED strings, while the 32MHz CPU ensures flicker-free dimming curves and smooth transitions. The 12 I/O pins can drive MOSFET drivers, read rotary encoders, or interface to DMX transceivers via the EUSART. The 2.5V to 5.5V supply range simplifies designs powered from 5V USB or 24V LED-driver rails. Integration of MSSP (SPI/I2C) supports digital LED drivers like TLC5947 for larger arrays, while the PIC16F1823 handles animation, thermal foldback, and user interfaces in compact SOIC-14.
Recommended
Small Home Appliance Control
The PIC16F1823-I/SL fits small home appliances such as blenders, air purifiers, humidifiers, and kitchen timers where compact, low-cost control is required. The 10-bit ADC reads thermistor or NTC temperature sensors, while the PWM modules drive triac gate optocouplers for AC load control. The MSSP (I2C) connects to OLED displays or capacitive touch controllers for the user interface, and the EUSART supports communication with WiFi modules for app control. With 3.5KB of Flash, manufacturers can implement closed-loop PID for motor speed, scheduling, and diagnostic telemetry within a SOIC-14 footprint that simplifies EMC compliance.
Recommended
HVAC Fan and Blower Controller
The PIC16F1823-I/SL is a good fit for HVAC fan and blower controllers requiring reliable, deterministic 8-bit performance in harsh thermal environments. Its enhanced mid-range core executes closed-loop fan RPM control from back-EMF or Hall-sensor feedback through the 10-bit ADC. The PWM modules drive BLDC or DC fan MOSFETs, while the EUSART or MSSP reports telemetry to a master controller. The integrated ICD accelerates firmware iteration during motor tuning, and the SOIC-14 footprint simplifies mounting on fan driver PCBs. The industrial -I temperature grade ensures operation from -40C to +85C in attic and boiler-room conditions.
Recommended
Industrial Logic Replacement Board
The PIC16F1823-I/SL can replace legacy 74-series glue logic on legacy industrial equipment with reduced PCB area. The 12 I/O pins, 32MHz CPU, and 3.5KB Flash allow designers to consolidate multiple logic gates, timers, and discrete logic functions into a single SOIC-14 MCU. Industrial protocols (Modbus RTU over EUSART, I2C IO expanders) are easy to implement, and the 2.5V-5.5V supply works with existing 5V PLC backplanes. Industrial temperature grade (-40C to +85C) and robust ESD performance on every I/O make it reliable in factory-floor installations.
Recommended
Automotive Accessory Controller (Non-Safety)
The PIC16F1823-I/SL suits non-safety automotive accessories such as interior LED lighting, footwell ambience, mirror adjusters, and HVAC blend-door servos. The -I industrial temperature grade covers passenger cabin conditions. The PWM modules drive MOSFET bridges, the ADC reads rheostats or NTC sensors, and the MSSP (SPI) connects to LED drivers like TLC5947 for animated interior lighting. For under-the-hood use, prefer the PIC16F1823-E/SL variant with extended -40C to +125C grade or the AEC-Q100 qualified PIC16F1823 family members.
Recommended
USB HID Consumer Device Interface
The PIC16F1823-I/SL's EUSART, MSSP, and 32MHz CPU support USB HID emulation via bit-banged 1.5Mbps or 12Mbps transceivers with appropriate external hardware such as MCP2200. Designers can implement HID-class devices (keyboards, mice, media controls) and consumer-control interfaces with minimal external components, leveraging the MCU's 12 I/O for switch matrix scanning and LED indicators. The 2.5V-5.5V supply range simplifies designs powered from USB 5V rail. This is a cost-effective choice for low-volume HID accessories where licensing a full USB stack is unnecessary.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1823I/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1823-E/SL | PIC16LF1823-I/SL | PIC16F1823T-I/SL | PIC16F1823-I/ST | PIC16F15325-I/SL |
|---|---|---|---|---|---|---|
| Package | SOIC-14 (SL) | SOIC-14 (SL) - same | SOIC-14 (SL) - same | SOIC-14 (SL) - same | TSSOP-14 (ST) - smaller profile | SOIC-14 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 14 KB |
| CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 1.8 V to 3.6 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.3 V to 5.5 V |
| Temperature Grade | Industrial -40C to +85C | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C |
| I/O Pins | 12 | 12 | 12 | 12 | 12 | 12 |
| Low-Power Technology | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP |
Key Differentiators
- Industrial temperature grade SOIC-14 variant (vs PIC16F1823-E/SL)
- Low-voltage LF variant in same SOIC-14 footprint (vs PIC16LF1823-I/SL)
- Larger Flash in modern successor (vs PIC16F15325-I/SL)
Design Notes
Place a 100 nF decoupling capacitor within 3 mm of the VDD pin (pin 14) and a bulk 10 uF tantalum or ceramic capacitor on the same rail. Add a ferrite bead in series with VDD if the supply is shared with switching converters. The PIC16F1823 has no internal POR capacitor so an external 100 nF on VDD is critical for power-on-reset reliability.
Do not leave the MCLR pin (pin 3 / RA3) floating if not used as IO. Tie MCLR to VDD through a 10 kohm pull-up resistor, otherwise spurious resets may occur. Verify the configuration bits (CONFIG1) for FOSC, BOR, and WDT before programming production firmware; a wrong FOSC setting can lock the part with no clock.
For SOIC-14, route the crystal/oscillator traces short and surround them with a ground pour. Place the ICSPDAT and ICSPCLK pins (RA0/RA1) with 0.1 inch pitch test pads for hand-programming or production programming pogo-pins. Keep analog signals (AN0-AN7) away from PWM outputs to reduce ADC noise injection; add a 100 nF + 10 uF on AVCC if available.
When using the MSSP in I2C mode, add 4.7 kohm pull-ups on SCL/SDA even if the peripheral is software-driven. For SPI at > 4 MHz, keep traces matched and short (< 50 mm) to avoid ringing. When using the EUSART at 115200 baud or higher, ensure the clock source is the 16 MHz HFINTOSC or external crystal, not the 31 kHz LFINTOSC.
The SOIC-14 package has typical theta_JA around 100 C/W for a standard JEDEC test board. At 32MHz CPU and full peripheral activity, worst-case MCU current is ~5 mA; power dissipation is below 30 mW even at 5.5V, well within thermal limits. For enclosed industrial housings above 60C ambient, validate via IR scan during EMC qualification.
Compliance Information
RoHS compliant per Microchip product page. The PIC16F1823-I/SL is industrial-grade, not AEC-Q100 qualified - select AEC-Q100 parts for automotive safety applications.
