PIC16LF18425T-I/SL - 14KB Flash XLP MCU | Microchip | SOIC-14
MPN: PIC16LF18425T-I/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.53 | $1.53 |
| 10 | $1.38 | $13.80 |
| 100 | $1.18 | $118.00 |
| 500 | $1.02 | $510.00 |
| 1,000 | $0.91 | $910.00 |
| 3,300 | $0.83 | $2,739.00 |
PIC16LF18425T-I/SL Overview
An 8-bit microcontroller (MCU) is a compact computing core that integrates a CPU, non-volatile program memory, working RAM, and a rich set of peripherals onto a single chip. PIC MCUs use a Harvard RISC architecture, where program and data buses are separated, allowing simultaneous instruction fetch and operand access in a single clock cycle. Within the broader semiconductor taxonomy, an MCU is a sub-class of microcontroller IC, itself a member of the integrated circuit family, designed for embedded control tasks rather than general computing.
Key features of this device include two PWM modules, comparators, a Digital-to-Analog Converter (DAC), a 12-bit Analog-to-Digital Converter with Computation (ADCC), a Complementary Waveform Generator (CWG), an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART), and SPI/I2C interfaces. These Core Independent Peripherals (CIPs) handle tasks autonomously from the CPU, freeing it for application logic and reducing firmware complexity. The 12-bit ADCC provides automated averaging, threshold detection, and hardware accumulation, enabling energy-efficient sensor acquisition.
The PIC16LF18425T-I/SL also benefits from Microchip's eXtreme Low-Power (XLP) technology, supporting sleep currents down to the nanoampere range and active-mode efficiencies suitable for battery-powered sensor nodes. The 32MHz maximum CPU speed delivers up to 8 MIPS of throughput. The 14-pin SOIC package provides a robust, hand-solderable footprint with a 1.27mm pitch and standard 3.90mm body width, suitable for prototyping as well as volume manufacturing.
Typical applications include IoT sensor nodes, battery-powered remote controls, low-power wireless sensor interfaces, LED lighting controls with dimming feedback, small motor control loops via the CWG, and consumer appliance user-interface panels. The combination of compact 14-pin packaging, low operating voltage, and rich analog peripherals makes it well-suited for space-constrained, energy-conscious designs.
When designing with this part, ensure the supply voltage stays within the 1.8V to 3.6V LF range, since the non-LF PIC16F18425 variant is rated for 2.3V to 5.5V operation. Decouple VDD with a 100nF ceramic capacitor placed within 3mm of the pin, and reserve the ICSP pins (ICSPCLK/ICSPDAT) for in-circuit programming during development.
Drop-in alternatives for PIC16LF18425T-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 PIC16LF18425T-I/SL (same form factor and footprint) — differing in ADC, Core Architecture, Program Memory (Flash), Package, DAC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF18424T-I/SL
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PIC16LF18424-I/SL
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View Datasheet →PIC16LF18424-E/SL
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View Datasheet →PIC16LF18425T-I/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC16 Harvard RISC |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data RAM | 1 KB |
| Maximum CPU Speed | 32 MHz (8 MIPS) |
| Operating Voltage Range | 1.8 V to 3.6 V (LF / XLP) |
| Operating Temperature Range | -40 C to +85 C (Industrial, 'I' grade) |
| ADC | 12-bit ADCC with computation |
| DAC | Yes (5-bit / 8-bit selectable) |
| PWM Modules | 2 x PWM |
| Comparators | Yes |
| CWG (Complementary Waveform Generator) | Yes |
| Communication Interfaces | EUSART, SPI, I2C |
| Package | 14-pin SOIC (SL), 3.90 mm body width, 1.27 mm pitch |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16LF18425T-I/SL Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Pin 2 | RA5 — Bidirectional I/O, analog input, digital input only |
| Pin 3 | RA4 — Bidirectional I/O, analog input |
| Pin 4 | RA3/MCLR — Bidirectional I/O, master clear reset input |
| Pin 5 | RC5 — Bidirectional I/O, analog input |
| Pin 6 | RC4 — Bidirectional I/O, analog input |
| Pin 7 | RC3 — Bidirectional I/O, analog input |
| Pin 8 | RC2 — Bidirectional I/O, analog input |
| Pin 9 | RC1 — Bidirectional I/O, analog input |
| Pin 10 | RC0 — Bidirectional I/O, analog input |
| Pin 11 | RA1/ICSPCLK — Bidirectional I/O, ICSP clock |
| Pin 12 | RA0/ICSPDAT — Bidirectional I/O, ICSP data |
| Pin 13 | RA2 — Bidirectional I/O, analog input |
| Pin 14 | VSS — Ground reference |
Typical Applications
PIC16LF18425T-I/SL is suitable for 7 applications: IoT Battery-Powered Sensor Node, LED Lighting Dimming and Color Control, Small Motor Control (Fan / Pump), Consumer Appliance User Interface, Industrial Sensor Transmitter (4-20 mA / 0-10V), Portable Medical Monitoring Accessory, Automotive Body Electronics (Non-Safety).
IoT Battery-Powered Sensor Node
The PIC16LF18425T-I/SL is well suited for IoT sensor nodes that spend most of their life in sleep mode and wake briefly to transmit. Its 1.8V to 3.6V supply range aligns directly with single-cell lithium or 2x AA alkaline chemistries, and the XLP nanoWatt sleep current below 100 nA typical extends battery life into multi-year territory. The 12-bit ADCC with hardware averaging lets the MCU read a sensor, threshold-check, and return to sleep without CPU intervention, while the EUSART/SPI/I2C interfaces connect to radios like LoRa, Sub-GHz transceivers, or BLE modules. The 14-SOIC package keeps the footprint small for embedded sensor housings.
Recommended
LED Lighting Dimming and Color Control
Lighting designs benefit from the PIC16LF18425T-I/SL's two PWM channels and Complementary Waveform Generator (CWG), which together produce synchronized PWM plus dead-band control for half-bridge LED drivers. The 12-bit ADCC reads ambient-light photodiodes and potentiometer inputs in real time, while the 5-bit DAC can drive reference voltages for analog dimming interfaces. With 14 KB Flash, the MCU holds color-mixing lookup tables and smooth-fade state machines without external memory. The 32 MHz core runs LED update loops with minimal jitter, important for flicker-free dimming at low duty cycles.
Recommended
Small Motor Control (Fan / Pump)
Small DC motors, fans, and pumps can be driven by the PIC16LF18425T-I/SL using the CWG to generate complementary drive signals with programmable dead-band, which prevents shoot-through in half-bridge FET drivers. The two PWM channels support speed control, while the comparators provide hardware overcurrent protection that can latch off the output without CPU latency. The 12-bit ADCC samples current-sense amplifiers for closed-loop control, and 1 KB RAM is sufficient for PID state variables. The industrial -40C to +85C range covers most appliance and HVAC environments.
Recommended
Consumer Appliance User Interface
User-interface panels in appliances (coffee makers, microwaves, washing machines) need capacitive-touch sensing, segment displays, and button inputs all handled by a single low-cost MCU. The PIC16LF18425T-I/SL's Core Independent Peripherals (CIPs) handle debounce, touch sampling, and PWM buzzer tones without burdening the CPU. Its 32 MHz core is fast enough to drive multiplexed LED or segment displays, while 14 KB Flash stores localized menu strings and beep sequences. The 1.8V to 3.6V range allows direct connection to 3.3V regulated rails common in modern appliances.
Recommended
Industrial Sensor Transmitter (4-20 mA / 0-10V)
Industrial sensor transmitters convert sensor readings into 4-20 mA or 0-10V analog outputs. The PIC16LF18425T-I/SL's 12-bit ADCC reads the sensor with built-in oversampling and threshold detection, while the 5-bit DAC combined with PWM-filtered output generates the 4-20 mA loop with calibration constants stored in Flash. The industrial -40C to +85C range handles most factory environments, and the EUSART supports HART or Modbus RTU communication overlays. The XLP sleep modes extend the life of loop-powered (2-wire) transmitters drawing their supply from the 4-20 mA loop itself.
Recommended
Portable Medical Monitoring Accessory
Portable medical accessories such as pulse-oximeter probes, glucose-meter dongles, and pill-bottle reminders benefit from the PIC16LF18425T-I/SL's combination of low voltage, low power, and rich analog peripherals. The 12-bit ADCC digitizes photoplethysmography (PPG) or bio-impedance signals with hardware averaging, the comparators detect battery-low thresholds, and the EUSART streams data to a paired BLE module. XLP sleep currents below 100 nA typical preserve coin-cell battery life. The 14-SOIC package enables slim, hand-held form factors favored by medical wearables.
Recommended
Automotive Body Electronics (Non-Safety)
Non-safety automotive body applications like ambient lighting, HVAC panel backlights, and accessory controllers can use the PIC16LF18425T-I/SL when AEC-Q100 qualification is not strictly required. The CWG drives FET half-bridges for LED strings, the PWMs control fan speed, and the EUSART/SPI talk to body-control modules. The 1.8V to 3.6V supply range pairs with 3.3V regulated rails commonly used in body modules. For full AEC-Q100 designs, upgrade to the PIC16LF18425T-E/SL extended temperature variant (-40C to +125C).
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18425T-I/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF18424T-I/SL | PIC16LF18424-I/SL | PIC16LF18424-E/SL | PIC16LF1825T-I/SL |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC (SL) | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same |
| Flash Memory | 14 KB (8K x 14) | 12 KB (-14%) | 12 KB (-14%) | 12 KB (-14%) | 8 KB (-43%) |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Operating Voltage | 1.8 V to 3.6 V (XLP) | 1.8 V to 3.6 V (XLP) | 1.8 V to 3.6 V (XLP) | 1.8 V to 3.6 V (XLP) | 1.8 V to 3.6 V (XLP) |
| ADC | 12-bit ADCC with computation | 12-bit ADCC with computation | 12-bit ADCC with computation | 12-bit ADCC with computation | 10-bit ADC |
| CWG (Complementary Waveform Generator) | Yes | Yes | Yes | Yes | No |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) |
Key Differentiators
- Higher Flash density than PIC16LF18424 cousin (vs PIC16LF18424T-I/SL)
- 12-bit ADCC with computation vs 10-bit legacy ADC (vs PIC16LF1825T-I/SL)
- Complementary Waveform Generator (CWG) for half-bridge motor/LED drive (vs PIC16LF1825T-I/SL)
Design Notes
The PIC16LF18425T-I/SL's LF / XLP variants operate from 1.8 V to 3.6 V and support nanoWatt sleep modes with currents below 100 nA typical. Place a 100nF ceramic decoupling capacitor within 3 mm of the VDD pin, with a 10uF bulk capacitor if the design drives large transient loads (radio TX bursts, motor inrush). When using sleep mode, ensure the MCLR pin is tied to VDD through a 10 kohm resistor to prevent spurious resets from leakage.
Reserve the ICSPCLK (RA1) and ICSPDAT (RA0) pins for in-circuit serial programming access during development. According to Microchip's development tool documentation, routing these signals to a 2x3 or 1x6 header simplifies programming and debug without removing the MCU. Keep the ICSP traces short (under 50 mm) to avoid programming glitches at low voltages.
Do not substitute the PIC16LF18425T-I/SL with the non-LF PIC16F18425T-I/SL when the supply drops below 2.3 V; the F variant will brownout and reset unpredictably. Conversely, do not use the LF variant in a 5 V system - this exceeds the absolute maximum rating and will damage the part. Always verify the full ordering code suffix (I/SL for industrial SOIC, E/SL for extended temp) before PCB assembly.
When using the 12-bit ADCC at high sampling rates, add a small RC filter (typically 1kΩ + 100pF) on each analog input to prevent charge-kickback from disturbing the sample-and-hold capacitor. Use adjacent GND pins and keep analog traces away from PWM or CWG switching signals to preserve ADC accuracy. According to Microchip's analog design guidelines, the ADCC computation modes can average up to 256 samples in hardware, dramatically improving SNR in noisy environments.
Compliance Information
Industrial-grade (-40C to +85C), not AEC-Q100 qualified. For extended temperature automotive-style applications use the PIC16LF18425T-E/SL variant. RoHS and lead-free confirmed by Microchip product page.
