PIC16F1825-I/SL - 14KB Flash, 32MHz 8-bit MCU | Microchip
MPN: PIC16F1825-I/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.61 | $1.61 |
| 10 | $1.42 | $14.20 |
| 100 | $1.18 | $118.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.93 | $930.00 |
| 3,000 | $0.84 | $2,520.00 |
PIC16F1825-I/SL Overview
An 8-bit microcontroller (MCU) is a small, low-cost embedded computer built around an 8-bit data path and integrated peripherals such as timers, ADC, communication ports and interrupt logic. The PIC16F1825 belongs to the enhanced mid-range PIC16 family, sitting in the hierarchy 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. Its enhanced mid-range core executes 49 instructions, has a 16-level hardware stack with overflow/underflow reset, and provides automatic context saving on interrupts. Compared to legacy baseline PIC MCUs, the core delivers higher code density and faster context switching, while remaining binary-compatible with the standard PIC mid-range instruction set for migration.
The PIC16F1825-I/SL integrates a 10-bit ADC with up to 12 channels, two 8-bit timers and four 10-bit PWM modules, plus an Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART) and two MSSP (I2C/SPI) modules. The mTouch capacitive touch sensing block allows direct capacitive button, slider and wheel implementation without external components, while the XLP run/sleep/IDLE current profile supports long-life battery applications. Internal 32 kHz and 16 MHz oscillators reduce external component count. The 14-SOIC (3.90 mm width) is the narrow-body SO package variant.
Architecturally, the PIC16F1825 uses Harvard memory organization with separate program and data buses, enabling simultaneous instruction fetch and data access. The 14 KB Flash is partitioned into self-writeable blocks for field firmware upgrades via bootloader or ICSP. The 256-byte EEPROM emulates non-volatile data storage, and the device supports in-circuit serial programming (ICSP) plus in-circuit debug via PICkit 3 and MPLAB ICD 3 without requiring a debug header. The -I temperature grade denotes an industrial range of -40C to +85C.
Typical applications include capacitive touch user interfaces for white goods and consumer electronics, low-battery IoT sensor nodes, home appliance control panels, automotive body and HVAC human-machine interfaces, and small motor control loops using the enhanced PWM peripherals. The combination of XLP power profile and integrated peripherals makes it well suited to designs where bill-of-materials and standby current are primary constraints.
Design consideration: when migrating PIC16F1825 firmware to other 14-pin PIC16F1xxx parts, always verify pinout against the target device's datasheet - pins like RA5/RA4 alternate between analog input and digital I/O depending on configuration bits. When using mTouch, ensure the PCB layout follows Microchip TB1108 guidelines for sensor trace routing and ground fill to maintain sensitivity stability across temperature.
This page synthesizes distributor pricing, drop-in alternatives and practical design notes that are not duplicated in the manufacturer datasheet, providing a single engineering reference for selecting, sourcing and implementing the PIC16F1825-I/SL.
Drop-in alternatives for PIC16F1825-I/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 PIC16F1825-I/SL (same form factor and footprint) — differing in ADC, Operating Temperature, Package, Communication, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1824-I/SL
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F1824T-I/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1823-I/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1823T-I/SL
✅ Drop-In✓ In Stock
$0.66 / Unit
View Datasheet →PIC16F1764-E/SL
✅ Drop-In✓ In Stock
$1.36 / Unit
View Datasheet →PIC16F1825-I/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 enhanced mid-range 8-bit |
| Instruction Set | 49 instructions, 16-level hardware stack |
| Maximum CPU Speed | 32 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data SRAM | 1024 bytes |
| Data EEPROM | 256 bytes |
| Operating Voltage Range | 1.8 V to 5.5 V |
| I/O Pins | 12 |
| ADC | 10-bit, up to 12 channels |
| Timers | 2 x 8-bit, 1 x 16-bit |
| PWM Modules | 4 x 10-bit Enhanced PWM |
| Communication | EUSART, 2 x MSSP (I2C/SPI) |
| Capacitive Touch | mTouch peripheral, integrated |
| Low-Power Technology | nanoWatt XLP |
| Internal Oscillator | 32 kHz + 16 MHz (factory calibrated) |
| Package | 14-SOIC (3.90 mm width) |
| Operating Temperature | -40 C to +85 C (Industrial grade) |
| Debug/Programming | ICSP, on-chip debug via PICkit 3 / MPLAB ICD 3 |
| MSL Level | MSL1 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
PIC16F1825-I/SL Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8 V to 5.5 V) |
| Pin 2 | RA5 — Digital I/O / analog input / timer clock input |
| Pin 3 | RA4 — Digital I/O / analog input / timer clock input |
| Pin 4 | RA3/MCLR — Input-only pin / Master Clear (reset) |
| Pin 5 | RC5 — Digital I/O / analog input / PWM output |
| Pin 6 | RC4 — Digital I/O / analog input / PWM output |
| Pin 7 | RC3 — Digital I/O / analog input / PWM output / SCL (I2C) |
| Pin 8 | RC2 — Digital I/O / analog input / PWM output |
| Pin 9 | RC1 — Digital I/O / analog input / CCP/PWM output |
| Pin 10 | RC0 — Digital I/O / analog input / PWM output / ICSP DAT |
| Pin 11 | RA2 — Digital I/O / analog input / timer clock |
| Pin 12 | RA1 — Digital I/O / analog input / ICSP PGC / EUSART RX |
| Pin 13 | RA0 — Digital I/O / analog input / ICSP PGD / EUSART TX |
| Pin 14 | VSS — Ground reference |
Typical Applications
PIC16F1825-I/SL is suitable for 7 applications: Capacitive Touch User Interface, Battery-Powered IoT Sensor Node, Home Appliance Control Panel, Automotive Body and HVAC HMI, Small Motor and Fan Speed Control, Industrial Sensor Transmitter (4-20 mA / 0-10 V), Consumer Wearable Health Patch.
Capacitive Touch User Interface
The PIC16F1825-I/SL's integrated mTouch capacitive touch sensing peripheral supports direct capacitive button, slider and wheel implementation without external touch ICs, reducing BOM and PCB area. With 12 I/O channels and the 10-bit ADC providing 12 analog inputs, the MCU can drive up to 12 touch electrodes while leaving pins for LEDs and a serial display interface. The 14 KB Flash allows a full state-machine touch UI plus boot-loader upgrade path, while XLP sleep currents below 1 uA enable battery-powered remote controls and white-good panels to run for years from a single coin cell. The 14-SOIC footprint simplifies hand-rework and low-cost assembly.
Recommended
Battery-Powered IoT Sensor Node
The PIC16F1825-I/SL is well matched to low-duty-cycle IoT sensor nodes thanks to its nanoWatt XLP technology with sub-1 uA sleep current, on-chip 32 kHz and 16 MHz oscillators (eliminating external crystals), and 1.8-5.5 V operation that lets designers pick either 3 V coin cells or 3.6 V Li-SOCl2 primary cells. The 10-bit ADC with 12 channels handles multiple analog sensors, while the EUSART and MSSP I2C/SPI ports interface to radios, sensors and EEPROM memory. With 14 KB Flash the device can run a Microchip LoRa/BLE-managed sensor stack or a custom sleepy mesh protocol with reasonable code margin.
Recommended
Home Appliance Control Panel
In washing-machine, dishwasher and oven control panels, the PIC16F1825-I/SL offers capacitive touch buttons (mTouch), 4 enhanced 10-bit PWM channels for triac or LED backlight dimming, and EUSART connectivity to a main appliance MCU. The 32 MHz CPU speed (200 ns instruction cycle) provides deterministic interrupt response for safety-critical button debouncing, while the -40 C to +85 C industrial temperature range handles kitchen and laundry-room environments. The 14-SOIC surface-mount package suits automated assembly and the 256-byte EEPROM stores user settings across power cycles.
Recommended
Automotive Body and HVAC HMI
For non-safety automotive HMI applications such as HVAC control heads, mirror adjusters and seat-position switches, the PIC16F1825's extended PIC16F1xxx family offers AEC-Q100 qualified variants in the same 14-SOIC footprint. The integrated PWM drives small DC motor speed control through external FET bridges, while mTouch provides capacitive slider input for fan-speed or temperature selection. Designers should select the AEC-Q100 qualified ordering code (typically 'E' grade) for automotive deployment; the PIC16F1825-I/SL industrial grade is suitable only for non-automotive HMI prototyping.
Recommended
Small Motor and Fan Speed Control
The PIC16F1825-I/SL integrates four enhanced 10-bit PWM channels, each with programmable dead-band and fault inputs, ideal for brushed DC motor, small BLDC commutator assist or 4-wire fan speed control. The 32 MHz CPU executes a small sensorless control loop (back-EMF zero-cross detection or current sensing) without saturating MIPS budget. The 10-bit ADC samples current-shunt or back-EMF at moderate rates, and the MSSP I2C port reports telemetry to a host controller. The 14-SOIC package keeps the design small enough for inline motor-driver daughter cards.
Recommended
Industrial Sensor Transmitter (4-20 mA / 0-10 V)
The PIC16F1825-I/SL supports 1.8-5.5 V operation which aligns with industrial 24 V loop-powered sensor designs using a buck or linear regulator; the 12-bit input ADC resolution of the PIC16F1825 (10-bit core plus oversampling) is sufficient for process-control sensing after calibration. The MSSP I2C/SPI port interfaces to external DACs or digital potentiometers for analog output generation, while the EUSART supports RS-485 communication via an external transceiver. Industrial EMC compliance must be addressed at the system level with proper shielding and protection components.
Recommended
Consumer Wearable Health Patch
With sub-1 uA XLP sleep current and an integrated 32 kHz LFINTOSC for RTC-style timing, the PIC16F1825-I/SL can serve as the housekeeping MCU in disposable or rechargeable wearable health patches that monitor heart rate, SpO2 or temperature. The mTouch peripheral adds skin-electrode or button input without extra ICs. The EUSART or MSSP ports stream digitized sensor data to a BLE companion IC. Designers should pair the device with a low-quiescent LDO and an ultra-low-power analog front end to maximize battery life across multi-day wear cycles.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1825-I/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1824-I/SL | PIC16F1823-I/SL | PIC16F1764-E/SL |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC (SL) | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same |
| Flash Program Memory | 14 KB | 7 KB | 3.5 KB | 14 KB |
| SRAM | 1024 B | 384 B | 256 B | 1024 B |
| EEPROM | 256 B | 256 B | 128 B | 256 B |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| I/O Pins | 12 | 12 | 12 | 12 |
| ADC | 10-bit, 12 ch | 10-bit, 12 ch | 10-bit, 12 ch | 10-bit, 12 ch |
| Capacitive Touch | Yes (mTouch) | Yes (mTouch) | Yes (mTouch) | Yes (mTouch) |
| Operating Temperature | -40 C to +85 C (I grade) | -40 C to +85 C (I grade) | -40 C to +85 C (I grade) | -40 C to +125 C (E grade) |
Key Differentiators
- Higher Flash memory than PIC16F1824-I/SL (vs PIC16F1824-I/SL)
- More SRAM than PIC16F1823-I/SL (vs PIC16F1823-I/SL)
- Standard industrial temperature grade on -I suffix (vs PIC16F1764-E/SL)
Design Notes
Estimated: at Vdd=3.3 V and CPU=32 MHz the PIC16F1825 typically draws 5-7 mA active, dropping to <30 uA at 1 MHz and <1 uA in XLP sleep with peripherals gated. For battery applications, use LFINTOSC during idle and gate the ADC, MSSP and EUSART modules via PMD bits when unused. The on-chip 32 kHz LF oscillator eliminates external RTC crystals but is less accurate (~2%) than a crystal-derived timebase.
Place a 0.1 uF decoupling capacitor within 2 mm of the Vdd pin (pin 1) and a bulk capacitor (1-10 uF) on the same supply rail. For mTouch designs, route capacitive sensor traces with ground fill on adjacent layers per Microchip TB1108 guidelines; avoid long parallel runs near noisy traces (PWM, switching regulators, I2C clock) to prevent sensitivity shift. For 14-SOIC, expose a generous copper pour under the die paddle-less package and tie Vss (pin 14) directly to the ground plane with a short trace.
Configuration bits are write-once until next bulk erase - confirm CONFIG1 (FOSC, WDTE, PWRTE, MCLRE) and CONFIG2 (LVP, DEBUG, BORV) before programming, since wrong MCLRE selection can disable RA3 as a GPIO. The RA3/MCLR pin is input-only; do not drive it as an output. The 10-bit ADC requires an acquisition time (TACQ) of ~5-10 us depending on source impedance; add a small series resistor or buffer if sampling a high-impedance sensor. Programming/debug uses RA0/RA1 as PGD/PGC, so design these pins with isolation resistors if used as analog or I/O during normal operation.
Compliance Information
RoHS and lead-free per Microchip product page. Industrial-grade -I variant is not AEC-Q100 qualified; choose an 'E' grade or AEC-Q100 qualified ordering code for automotive applications.
