PIC16LF18425-E/ST - 8-Bit 32MHz 14KB Flash MCU | Microchip
MPN: PIC16LF18425-E/ST ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.86 | $1.86 |
| 10 | $1.62 | $16.20 |
| 100 | $1.28 | $128.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.92 | $920.00 |
PIC16LF18425-E/ST Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), working RAM, and a rich set of peripherals — timers, ADC, communication interfaces, and I/O — into one package. The PIC16F family sits within the larger hierarchy: PIC16F -> PIC microcontroller -> 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor. The 8-bit PIC architecture uses a RISC-modified instruction set with a single accumulator (W) and hardware register bank switching, which simplifies firmware development for cost-sensitive, deterministic control tasks such as sensor reading, PWM driving, and simple protocol bridging.
Key features of the PIC16LF18425-E/ST include 14KB Flash, 1KB SRAM, up to 32MHz internal oscillator, two 10-bit PWMs (with complementary and dead-band modes), a hardware Comparator, a 5-bit and 12-bit DAC, a 12-bit ADC with Computation (ADCC) for automated averaging/filtering, a Complementary Waveform Generator (CWG), one EUSART, and SPI/I2C peripherals. These integrated peripherals allow designers to replace several external analog and timing components with a single chip.
The 12-bit ADCC supports automated threshold scanning and oversampling — useful in battery fuel-gauging, sensor linearization, and touch-proximity front ends. The CWG module generates complementary MOSFET drive waveforms with programmable dead time, making this MCU well-suited to half-bridge and full-bridge power converter control, while the DAC enables programmable reference voltages for closed-loop trimming. The EUSART and SPI/I2C blocks expose robust master / slave roles in digital buses.
Typical applications include IoT sensor nodes running on coin-cell batteries, consumer remote controls, small appliance motor control (fans, pumps, valve drives), LED lighting drivers with analog dimming, and industrial low-power data loggers. The 14-pin TSSOP footprint keeps the board area under 30 mm², ideal for compact enclosures.
When designing with the PIC16LF18425-E/ST, take advantage of the nanoWatt XLP sleep modes and peripheral pin select (PPS) to remap digital functions to any I/O — this reduces external wiring and lets you trade peripheral pins for board routing flexibility. Use the 12-bit ADCC rather than software averaging to offload sensor processing and reduce CPU wake time.
This page synthesizes distributor pricing, drop-in PIC16F/LF18425 alternatives with shared 14-pin TSSOP footprints, and practical design notes not found in the standalone datasheet.
Drop-in alternatives for PIC16LF18425-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 PIC16LF18425-E/ST (same form factor and footprint) — differing in ADC, Package, Program Memory (Flash), Core Architecture, Family.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF18425-I/ST
✅ Drop-In✓ In Stock
$1.53 / Unit
View Datasheet →PIC16F18425-E/ST
✅ Drop-In✓ In Stock
$1.28 / Unit
View Datasheet →PIC16LF18424-E/ST
✅ Drop-In✓ In Stock
$0.86 / Unit
View Datasheet →PIC16LF18425-E/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF18425-E/P
✅ Drop-In✓ In Stock
$1.28 / Unit
View Datasheet →PIC16LF18425-E/ST Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC |
| Family | PIC® XLP™ 16F |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data RAM | 1 KB |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Operating Temperature | -40 °C to +125 °C (E suffix) |
| Package | 14-TSSOP |
| Mounting Type | Surface Mount |
| I/O Pins | 11 (per datasheet family) |
| ADC | 12-bit ADCC with computation |
| DAC | 5-bit and 12-bit |
| PWM Channels | 2 (10-bit with complementary outputs) |
| Comparators | Yes |
| CWG (Complementary Waveform Generator) | Yes |
| EUSART | 1 |
| SPI / I2C | Yes |
| RoHS Status | Compliant |
PIC16LF18425-E/ST Pin Configuration
| Pin 1 | RA0/ICSPDAT — Bidirectional I/O / ICSP data |
| Pin 2 | RA1 — Bidirectional I/O |
| Pin 3 | RA2 — Bidirectional I/O |
| Pin 4 | RA3/MCLR — Bidirectional I/O / Master Clear (reset) |
| Pin 5 | RA4/ICSPCLK — Bidirectional I/O / ICSP clock |
| Pin 6 | RA5 — Bidirectional I/O |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RC0 — Bidirectional I/O |
| Pin 9 | RC1 — Bidirectional I/O |
| Pin 10 | RC2 — Bidirectional I/O |
| Pin 11 | RC3 — Bidirectional I/O |
| Pin 12 | RC4 — Bidirectional I/O |
| Pin 13 | RC5 — Bidirectional I/O |
| Pin 14 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
Typical Applications
PIC16LF18425-E/ST is suitable for 6 applications: Battery-Powered IoT Sensor Node, LED Lighting with Analog Dimming, Small Appliance Motor Control, Consumer Remote Control / HMI, Industrial Data Logger, Low-Cost Capacitive Touch Interface.
Battery-Powered IoT Sensor Node
The PIC16LF18425-E/ST fits battery-powered IoT sensor nodes thanks to its 1.8V-3.6V VDD range and nanoWatt XLP sleep modes, which drop current consumption to single-digit µA in sleep. With 14 KB Flash it can hold a small BLE/Zigbee stack plus sensor drivers, while the 12-bit ADCC with computation handles temperature, humidity, or battery voltage measurements with on-chip averaging, reducing CPU wake time. The 14-pin TSSOP keeps the board under 30 mm², ideal for coin-cell powered wearables, smart home sensors, and remote telemetry units. Pair with a low-power radio and a CR2032 cell for multi-year battery life.
Recommended
LED Lighting with Analog Dimming
The PIC16LF18425-E/ST serves as the control brain in LED lighting fixtures where the 12-bit DAC generates a programmable analog dimming reference, the 2 PWM channels drive MOSFETs for constant-current regulation, and the CWG module produces complementary outputs for totem-pole drivers. Operating at 32 MHz, the MCU handles DALI or 0-10V dimming protocols while maintaining smooth low-end fade-to-dark. The 14-pin TSSOP keeps the driver board compact enough for MR16 bulbs and linear strips. The XLP sleep mode reduces standby power below regulatory limits for energy-star compliance.
Recommended
Small Appliance Motor Control
In small appliance motor control such as fans, pumps, and valve drives, the PIC16LF18425-E/ST's CWG module generates complementary PWM with programmable dead time, directly driving half-bridge MOSFET stages for brushless DC or brushed motors. The 12-bit ADCC reads back EMF, current, and temperature with on-chip oversampling, while the hardware Comparator triggers overcurrent protection without CPU intervention. The 1.8V-3.6V VDD range simplifies integration with single-cell Li-ion or 2xAA power stages. The 14-pin TSSOP package fits inside compact appliance housings.
Recommended
Consumer Remote Control / HMI
For consumer remote controls, the PIC16LF18425-E/ST combines IR transmission via PWM carrier generation, low-power wake-on-button via interrupt-on-change, and SPI/I2C for interfacing with display drivers or capacitive touch front-ends. The 14 KB Flash accommodates complex protocol stacks (RC5, NEC, or proprietary), while the EUSART enables UART-based IR or RF modules. Sleep current in the nanoWatt range extends coin-cell battery life to multiple years. The 14-pin TSSOP is small enough for slim-line remote enclosures.
Recommended
Industrial Data Logger
The PIC16LF18425-E/ST powers industrial data loggers in remote or battery-backed installations where the 12-bit ADCC with computation samples temperature, pressure, and flow sensors with hardware averaging while the CPU sleeps between conversions. The 14 KB Flash stores a small RTOS kernel or sequential logger firmware, and the 1 KB RAM buffers measurement frames before SPI flash writes. The EUSART enables RS-485 communication with external industrial networks. The industrial temperature grade (-40°C to +125°C on E suffix) supports outdoor and process-industry environments.
Recommended
Low-Cost Capacitive Touch Interface
The PIC16LF18425-E/ST implements low-cost capacitive touch interfaces through its 12-bit ADCC and hardware Comparator — combined with mTouch® firmware, it can decode up to 11 touch channels using a single ADC and minimal external RC components. The DAC provides a programmable reference voltage for proximity detection thresholds. The CWG module generates the touch excitation waveform. The 14-pin TSSOP keeps the touch PCB compact, while XLP sleep extends battery life in wireless remote controls. This design replaces mechanical buttons with a sleek glass-front panel.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18425-E/ST — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF18425-I/ST | PIC16F18425-E/ST | PIC16LF18424-E/ST | PIC16LF18425-E/SL |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-TSSOP | 14-TSSOP | 14-TSSOP | 14-TSSOP | 14-SOIC |
| Program Memory (Flash) | 14 KB | 14 KB | 14 KB | 7 KB (-50%) | 14 KB |
| Data RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V (wider) | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Operating Temperature | -40 °C to +125 °C | -40 °C to +85 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C |
| 12-bit ADCC with Computation | Yes | Yes | Yes | Yes | Yes |
| CWG (Complementary Waveform Generator) | Yes | Yes | Yes | Yes | Yes |
| DAC (5/12-bit) | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- 12-bit ADCC with on-chip computation vs 10-bit ADC on older PIC16F/LF1825 family (vs PIC16LF1825-I/ST)
- CWG module for complementary drive waveforms (vs PIC16LF18325-E/ST)
- 14 KB Flash for richer firmware stacks (vs PIC16LF18424-E/SL)
Design Notes
Take advantage of the XLP nanoWatt sleep modes (Sleep, Deep Sleep, and Watchdog Timer-only Sleep) when designing battery-powered applications. The PIC16LF18425-E/ST draws typically <50 nA in Deep Sleep with WDT disabled. Configure all unused peripherals to off before entering Sleep to avoid parasitic current. Use the Peripheral Pin Select (PPS) feature to remap digital peripherals to any I/O, eliminating the need for external cross-wiring and reducing board area.
The 14-pin TSSOP package requires a 0.65 mm pitch land pattern with thermal relief spokes. Place a 0.1 µF decoupling capacitor within 3 mm of the VDD pin (pin 14) and a bulk capacitor (≥1 µF) near the supply trace. Keep the ICSP pins (RA0/ICSPDAT, RA4/ICSPCLK) routed to a 5-pin programming connector with series 10 kΩ resistors on RA4/ICSPCLK to protect against ESD during in-field firmware updates.
When using the 12-bit ADCC for precision measurements, route analog inputs away from digital I/O and PWM outputs. Use a ground pour on the top layer tied to VSS, with a star-ground at the AGND/VSS pin to minimize digital return currents through analog traces. Place the ADCC reference voltage capacitor (if used) within 5 mm of the VREF+ pin to prevent reference noise pickup.
Do not exceed the absolute maximum VDD of 4.0 V on the PIC16LF18425 variant — this differs from the PIC16F18425 which tolerates 5.5 V. The MCLR pin (RA3) is the only pin with built-in voltage clamping; other pins tolerate VDD + 0.3 V maximum. When migrating firmware from PIC16LF18424 (7 KB Flash), ensure the linker script targets 14 KB Flash even if the code is smaller, to avoid linker overlap errors.
Compliance Information
RoHS and REACH compliance status confirmed via Microchip product page. AEC-Q100 not applicable — this is a general-purpose MCU, not automotive grade. For AEC-Q100 qualified PIC16 alternatives, see PIC16F18425-E/ST (extended temp) variants; consult Microchip directly for automotive-grade selection.
