PIC16LF1825-E/ST - 8-bit 32MHz MCU, 14KB Flash, 14-TSSOP | Microchip
MPN: PIC16LF1825-E/ST ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.41 | $2.41 |
| 10 | $2.12 | $21.20 |
| 100 | $1.79 | $179.00 |
| 500 | $1.55 | $775.00 |
| 1,000 | $1.32 | $1,320.00 |
PIC16LF1825-E/ST Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (typically flash), volatile data memory (RAM), EEPROM, and a rich set of digital and analog peripherals. The PIC16LF1825 belongs to Microchip's enhanced mid-range PIC16 family, which uses a RISC-based 8-bit core with a 14-bit instruction word — making it one of the simplest yet most power-efficient 8-bit MCU architectures in commercial production. Within the broader hierarchy, an 8-bit MCU like this sits below 16-bit dsPIC and 32-bit ARM Cortex-M devices in processing capability, but excels in cost-sensitive, ultra-low-power applications such as touch sensing, sensor conditioning, and battery-driven control.
Key differentiating features include the mTouch™ capacitive-touch peripheral, the nanoWatt XLP™ ultra-low-power technology (deep sleep current below 50 nA typical), an on-chip 32 MHz high-precision internal oscillator that eliminates an external crystal in many designs, 12 I/O pins, a 10-bit ADC with computation, multiple PWM modules, enhanced USART, MSSP (SPI/I2C), and 2 comparators. Together these enable touch-button user input, accurate sensor reading, and direct drive of LEDs or small motors without external circuitry.
Architecturally, the PIC16LF1825 combines a 14-bit instruction set with deep pipelining that yields deterministic 4-clock-cycle instruction execution. The internal oscillator is factory trimmed to within +/-1% across voltage and temperature, removing the BOM cost and board area of a 2-pin crystal in cost-sensitive designs. XLP™ technology is the headline differentiator: sleep currents measured in nanoamps allow years of operation from a coin-cell battery in duty-cycled sensor nodes.
Typical applications include capacitive touch keypads for home appliances, low-power wireless sensor nodes, IoT end devices running on coin-cell batteries, LED lighting controls with dimming, and small motor or fan control in white goods. The wide 1.8V–3.6V operating range and extended temperature grade also suit industrial HMI and automotive body electronics.
When designing with this MCU, ensure the supply decoupling network follows Microchip's recommended 100 nF + 10 µF placement close to the VDD pin, and that unused I/O pins are configured as outputs low to minimise sleep-mode leakage. Programming is supported by PICkit™ 3/4, MPLAB SNAP, and the MPLAB X IDE / MCC code configurator ecosystem.
This page synthesises distributor pricing, drop-in alternative MPNs, and practical design notes not consolidated in any single datasheet or distributor listing.
Drop-in alternatives for PIC16LF1825-E/ST — 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 PIC16LF1825-E/ST (same form factor and footprint) — differing in ADC, Package, Core Architecture, MSL Level, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1825-E/ST
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1825-I/ST
✅ Drop-In✓ In Stock
$1.41 / Unit
View Datasheet →PIC16LF1825-E/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1824-E/ST
✅ Drop-In✓ In Stock
$1.42 / Unit
View Datasheet →PIC16LF1823-E/ST
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1705-I/ST
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.05 / Unit
View Datasheet →PIC16LF1765-I/ST
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.86 / Unit
View Datasheet →PIC16LF1825-E/ST Maximum Ratings & Electrical Characteristics
| Architecture | PIC16 enhanced mid-range, 8-bit RISC, 14-bit instruction word |
| Core | PIC16 (Harvard) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data RAM | 1 KB |
| Data EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz (8 MIPS) |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| I/O Pins | 12 |
| Package | 14-TSSOP (ST) |
| Mounting Type | Surface Mount |
| Temperature Grade | Extended -40C to +125C (E suffix) |
| On-Chip Oscillator | 32 MHz internal, factory-trimmed |
| ADC | 10-bit, with computation (ADC2) |
| PWM Channels | Multiple (CCP/Enhanced PWM) |
| Communication | Enhanced USART, MSSP (SPI / I2C) |
| Comparators | 2 |
| Capacitive Touch | mTouch™ peripheral |
| Low-Power Technology | nanoWatt XLP™ |
| Peripheral Pin Select (PPS) | Yes |
| MSL Level | 1 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
PIC16LF1825-E/ST Pin Configuration
| Pin 1 | VDD — Positive power supply (1.8V-3.6V) |
| Pin 2 | RA5/SS1/HLVDIN — I/O / SPI slave select / high/low-voltage detect input |
| Pin 3 | RA4/AN3/T1G/CLKR — I/O / ADC input / Timer1 gate / clock reference |
| Pin 4 | RA3/MCLR/VPP — Master Clear (reset) input / programming voltage |
| Pin 5 | RA2/AN2/DAC/CWG1IN — I/O / ADC / DAC output / CWG input |
| Pin 6 | RA1/ICSPCLK — I/O / In-Circuit Serial Programming clock |
| Pin 7 | RA0/ICSPDAT — I/O / In-Circuit Serial Programming data |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RC5/RX/DT — I/O / EUSART RX / data line |
| Pin 10 | RC4/C2OUT/SDA — I/O / comparator output / I2C data |
| Pin 11 | RC3/CCP1/SCL — I/O / CCP1 PWM output / I2C clock |
| Pin 12 | RC2/CCP2/AN6 — I/O / CCP2 PWM / ADC input |
| Pin 13 | RC1/AN5 — I/O / ADC input |
| Pin 14 | RC0/AN4 — I/O / ADC input |
Typical Applications
PIC16LF1825-E/ST is suitable for 6 applications: Capacitive Touch Keypads for Home Appliances, Battery-Powered IoT Sensor Nodes, LED Lighting Controls with Dimming, Small Motor and Fan Control in White Goods, Industrial HMI Front Panels, Automotive Body Electronics Modules.
Capacitive Touch Keypads for Home Appliances
The PIC16LF1825-E/ST's integrated mTouch™ capacitive-touch peripheral and 12 I/O pins let it directly scan up to 12 touch electrodes without an external touch IC, slashing BOM cost in washing-machine, microwave, and induction-cooktop control panels. With nanoWatt XLP™ sleep below 50 nA and 1.8V–3.6V operation, the MCU can stay in standby between button presses for years on the appliance's standby rail, waking on a Touch-Ready interrupt to poll the electrode matrix at 100 Hz. The 32 MHz core and 8 MIPS throughput easily handle debounce, gesture decoding, and LED-indicator PWM updates in a single 14-TSSOP footprint. Compared to mechanical switches, capacitive touch delivers sealed panels, industrial-grade reliability, and modern UI feel at lower cost.
Recommended
Battery-Powered IoT Sensor Nodes
The PIC16LF1825-E/ST's nanoWatt XLP™ technology delivers typical deep-sleep current below 50 nA with full RAM retention, enabling multi-year operation from a coin-cell CR2032 battery in duty-cycled wireless sensor nodes. The 32 MHz internal oscillator eliminates a 2-pin crystal in many designs, reducing quiescent draw and board area. With 14 KB flash and 1 KB RAM, the MCU can run a Zigbee/Sub-GHz proprietary stack front-end, AES-128 encryption, and sensor-fusion math before handing off to a transceiver like the MRF24J40. The 1.8V–3.6V VDD range matches direct coin-cell supply without a boost regulator, simplifying the power tree to just the MCU + sensor + transceiver. Extended -40C to +125C operation suits outdoor and industrial deployments.
Recommended
LED Lighting Controls with Dimming
The PIC16LF1825-E/ST's enhanced PWM modules and 32 MHz core deliver 16-bit PWM resolution at the refresh rates needed for flicker-free analog LED dimming (10 kHz+) while the 14-TSSOP package fits inside a small MR16 lamp base. The mTouch™ peripheral enables touch-on/off and dim sliders on the lamp housing without a mechanical switch, sealed against humidity in outdoor fixtures. nanoWatt XLP™ standby below 50 nA is critical for always-listening lighting products where the MCU must stay responsive without draining the driver. The 1.8V–3.6V VDD range lets the MCU run from the same 3.3V LDO that powers the LED driver controller, eliminating a second supply rail. Compared to discrete 555-timer PWM solutions, this PIC integrates dim curves, thermal foldback, and DMX-style address decoding in firmware.
Recommended
Small Motor and Fan Control in White Goods
The PIC16LF1825-E/ST's enhanced PWM, 2 on-chip comparators, and 32 MHz core are well-matched to BLDC and brushed-DC motor commutation in dishwasher circulation pumps, refrigerator fans, and range-hood blowers. The peripheral pin select (PPS) feature routes the PWM outputs and comparator inputs to any I/O, simplifying PCB layout for H-bridge driver signals. The 10-bit ADC with computation can perform zero-crossing detection and back-EMF sensing in firmware, replacing an external op-amp/ADC front-end. Extended -40C to +125C operation tolerates under-cabinet or under-hood thermal environments. The 14 KB flash holds lookup-table-based sinusoidal commutation profiles and fault-handling routines.
Recommended
Industrial HMI Front Panels
The PIC16LF1825-E/ST's mTouch™ capacitive-touch input and 12 I/O pins support up to 12 touch buttons or a 4x4 scanned matrix for industrial HMI front panels on test equipment, factory automation controllers, and laboratory instruments. Its -40C to +125C extended operating range and integrated enhanced USART simplify firmware-managed Modbus RTU or RS-485 communication with the host PLC. The 14 KB flash holds multilingual display string tables and configuration menus, while 1 KB RAM buffers screen updates. The on-chip 32 MHz factory-trimmed oscillator (-/+1%) eliminates a crystal in cost-sensitive panels. Compared to capacitive-touch-only ICs plus a separate MCU, this single-chip solution reduces BOM cost by ~30% in volume production.
Recommended
Automotive Body Electronics Modules
The PIC16LF1825-E/ST's -40C to +125C extended temperature grade (E suffix), 1.8V–3.6V operation, and 32 MIPS throughput suit automotive body modules such as door-lock controllers, seat-position sensors, mirror-adjust switches, and interior lighting. Its nanoWatt XLP™ sleep below 50 nA minimises quiescent draw on the always-on 12V battery rail through the BCM wake-up event, and the 14 KB flash holds LIN-node firmware with diagnostic routines per J2602. The MSSP (SPI/I2C) and enhanced USART peripherals bridge directly to automotive sensor ICs (e.g., ambient light, temperature, Hall-effect) without external glue logic. Compared to 5V-only PIC16F parts, this LF variant saves 30–40% active power on 3.3V-regulated rails.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1825-E/ST — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1825-E/ST | PIC16LF1825-I/ST | PIC16LF1824-E/ST | PIC16LF1823-E/ST | PIC16LF1705-I/ST |
|---|---|---|---|---|---|---|
| Package | 14-TSSOP (ST) | 14-TSSOP (ST) | 14-TSSOP (ST) | 14-TSSOP (ST) | 14-TSSOP (ST) | 14-TSSOP (ST) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 14 KB | 14 KB | 14 KB | 7 KB | 8 KB | 14 KB |
| Data RAM | 1 KB | 1 KB | 1 KB | 256 B | 256 B | 1 KB |
| Operating Voltage | 1.8V-3.6V | 1.8V-5.5V | 1.8V-3.6V | 1.8V-3.6V | 1.8V-3.6V | 1.8V-3.6V |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Temperature Grade | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) |
| mTouch™ Capacitive Touch | Yes | Yes | Yes | Yes | Yes | Yes |
| Internal Oscillator | 32 MHz factory-trimmed | 32 MHz factory-trimmed | 32 MHz factory-trimmed | 32 MHz factory-trimmed | 32 MHz factory-trimmed | 32 MHz factory-trimmed |
Key Differentiators
- Integrated 32 MHz factory-trimmed internal oscillator (vs PIC16LF1824-E/ST)
- nanoWatt XLP™ sub-50 nA deep-sleep with full RAM retention (vs PIC16LF1823-E/ST)
- mTouch™ capacitive-touch peripheral on-chip (vs PIC16LF1705-I/ST)
Design Notes
Decoupling: Place a 100 nF X7R ceramic capacitor as close as possible to the VDD pin (pin 1) of the 14-TSSOP package, with a 10 µF bulk tantalum or ceramic capacitor on the same rail. According to the Microchip datasheet, inadequate decoupling can cause voltage spikes during ADC conversions and PWM edges, especially when sourcing loads >20 mA. Add a 10 µF + 100 nF pair on any analog AVDD pin if a separate analog rail is used. For battery-powered designs, add a 100 kΩ/100 nF RC network on MCLR (pin 4) to ensure clean reset on slow-rising battery voltages.
Unused pins must be configured as digital outputs driving low (or as inputs with the WPU disabled) to minimise sleep-mode leakage. According to the Microchip datasheet, floating unused pins can draw tens of microamps each, dwarfing the nanoWatt XLP™ 50 nA sleep baseline. Configure the PPS register only after disabling the peripherals using those pins, otherwise spurious peripheral events may trigger on startup. Also ensure the LVP (low-voltage programming) bit is correctly set in the configuration word for your toolchain; PICkit™ 3/4 uses LVP=ON by default.
Keep the ICSPDAT/ICSPCLK traces (RA0/RA1) short and isolated from switching nodes like PWM outputs (CCP1/CCP2) on RC3/RC2. According to the Microchip datasheet, capacitive coupling between programming lines and PWM can cause programming failures and PWM glitches in production. Maintain a ground plane under the MCU and route analog signals (AN2/AN3/AN4/AN5/AN6) away from digital traces. The exposed thermal pad on the 14-TSSOP is internally floating and should be soldered to the PCB pad for mechanical stability, but does not need thermal copper for the <100 mW typical dissipation.
When using the EUSART at high baud rates (>115200 bps) with the 32 MHz internal oscillator, set the SPBRG value to compensate for the +/-1% oscillator tolerance. According to the Microchip datasheet, the auto-baud feature (ABDEN) can lock the EUSART to a host clock if available, eliminating manual compensation. For I2C MSSP communication, use 4.7 kΩ pull-ups on SCL/SDA at 3.3V with bus capacitance <100 pF; for longer buses, use the active-MSSP mode with slew-rate control to suppress ringing.
Compliance Information
RoHS compliant and lead-free matte-tin finish per Microchip product page. -40C to +125C extended automotive operating range per 'E' temperature suffix; not AEC-Q100 qualified (PIC16F1825-E/ST-Q1 variant carries the qualification). REACH compliant per Microchip product family statement.
