PIC16LF18425T-I/JQ - 8-bit 32MHz MCU 14KB Flash 16-UQFN | Microchip
MPN: PIC16LF18425T-I/JQ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.23 | $1.23 |
| 10 | $1.11 | $11.10 |
| 100 | $0.98 | $98.00 |
| 500 | $0.86 | $430.00 |
| 1,000 | $0.75 | $750.00 |
| 3,300 | $0.55 | $1,815.00 |
PIC16LF18425T-I/JQ Overview
A microcontroller (MCU) is an integrated circuit that combines a CPU core, program memory, data memory, and configurable peripherals on a single silicon die. PIC16F MCUs use a Harvard-architecture RISC core optimized for deterministic real-time control, and the 184xx family extends this with Core Independent Peripherals (CIPs) that operate autonomously without CPU intervention. The PIC16LF18425T-I/JQ belongs to the broader hierarchy: microcontroller -> 8-bit MCU -> PIC16F family -> XLP low-power subfamily, and is manufactured using CMOS process technology.
Key differentiating features of the PIC16LF18425T-I/JQ include its 12-bit ADCC with automated averaging, oversampling, and threshold comparison, reducing firmware complexity for sensor monitoring. The CWG module generates complementary dead-band-controlled waveforms typically required for half-bridge power stages. The CLC allows combinatorial logic between peripherals to be wired in hardware, enabling custom glue logic without code overhead. Combined with 32MHz operation and 14KB of code space, these CIPs deliver high analog integration density for sensor and motor-control applications in a tiny 16-UQFN footprint.
Architecturally, the PIC16LF18425T-I/JQ is built around the enhanced mid-range PIC16 core with a 14-bit instruction word, allowing each Flash location to store a single instruction and giving the part its 8K x 14 Flash organization. The 32MHz internal oscillator (with PLL) yields a 125ns instruction cycle, supporting precise timing in motor-control loops. XLP technology integrates nanoWatt XLP sleep modes, allowing the device to wake on peripheral triggers while drawing under 1 uA, ideal for energy-harvesting or coin-cell applications. Multiple I/O (12 of 16 pins) and high-current sink/source capability simplify driving LEDs, keypads, and power transistors directly.
Typical applications include IoT sensor nodes, low-power wireless edge devices, battery-powered handheld instruments, LED lighting control, and small BLDC motor control. The combination of XLP sleep modes and 12-bit ADCC makes this MCU especially attractive for periodic-sampling sensor products where multi-year battery life is a primary design goal.
When designing with this device, ensure your Vdd decoupling follows the manufacturer recommendations (typically 0.1 uF and 10 uF in parallel) and that unused I/O are configured as outputs low or inputs with internal pull-ups to minimize sleep current. ICSP programming pads should remain accessible for in-circuit firmware updates. Selecting the 'LF' variant limits Vdd to 3.6V, so if a 5V system rail is present, choose the standard 'F' variant instead.
This page consolidates distributor pricing, same-package drop-in alternatives, application-specific design notes, and AI-search-optimized comparison tables that go beyond the manufacturer datasheet to help engineers select and source the right MCU.
Drop-in alternatives for PIC16LF18425T-I/JQ — 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/JQ (same form factor and footprint) — differing in ADC, I/O Pins, Operating Temperature, Package, Communication.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF18425T-I/JQ
✅ Drop-In✓ In Stock
$0.55 / Unit
View Datasheet →PIC16LF18425-E/JQ
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC16LF18424T-I/JQ
✅ Drop-In✓ In Stock
$0.88 / Unit
View Datasheet →PIC16LF18326T-I/JQ
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →PIC16LF18325T-I/JQ
✅ Drop-In✓ In Stock
$0.92 / Unit
View Datasheet →PIC16LF1825T-I/JQ
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC16LF18425T-I/JQ Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 8-bit enhanced mid-range |
| CPU Frequency | 32 MHz (125 ns instruction cycle) |
| Program Memory (Flash) | 14 KB (8K x 14) |
| Data SRAM | 1 KB (1024 bytes) |
| Data EEPROM | 256 bytes |
| Operating Voltage | 1.8 V to 3.6 V |
| ADC | 12-bit ADCC (with computation) |
| DAC | 5-bit DAC |
| Comparators | Yes |
| PWM Modules | 2 x PWM |
| CWG | Complementary Waveform Generator |
| CLC | Configurable Logic Cell |
| Communication | EUSART, SPI, I2C |
| I/O Pins | 12 |
| Package | 16-UQFN (4x4 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C |
| RoHS Status | Compliant |
| Low-Power Technology | XLP (nanoWatt) |
PIC16LF18425T-I/JQ Pin Configuration
| Pin 1 | RA5 — GPIO / ADC input |
| Pin 2 | RA4 — GPIO / ADC input |
| Pin 3 | RA3 — GPIO / MCLR (Reset) |
| Pin 4 | RA2 — GPIO / DAC output / ADC input |
| Pin 5 | RA1 — GPIO / ICSPCLK / ADC input |
| Pin 6 | RA0 — GPIO / ICSPDAT / ADC input |
| Pin 7 | Vss — Ground |
| Pin 8 | RB7 — GPIO / ADC input |
| Pin 9 | RB6 — GPIO / ADC input |
| Pin 10 | RB5 — GPIO / ADC input / PWM |
| Pin 11 | RB4 — GPIO / ADC input / PWM |
| Pin 12 | RB3 — GPIO / ADC input |
| Pin 13 | RB2 — GPIO / ADC input |
| Pin 14 | RB1 — GPIO / ADC input |
| Pin 15 | RB0 — GPIO / ADC input |
| Pin 16 | Vdd — Positive supply voltage |
Typical Applications
PIC16LF18425T-I/JQ is suitable for 7 applications: IoT Sensor Node with Battery Monitoring, Low-Power Wearable Health Monitor, Battery-Powered LED Lighting Control, Small BLDC or Fan Motor Control, Industrial Sensor Transmitter (4-20 mA / 0-10V), Smart Home Edge Controller, Consumer Remote Control / HID Device.
IoT Sensor Node with Battery Monitoring
The PIC16LF18425T-I/JQ is purpose-built for battery-powered IoT sensor nodes thanks to its XLP nanoWatt technology, which delivers sub-1 uA sleep current in deep sleep modes and supports wake-on-peripheral triggers without CPU intervention. The 12-bit ADCC with automated oversampling and threshold comparison performs sensor signal conditioning autonomously, freeing the CPU to remain in sleep for the vast majority of the duty cycle. The 14 KB Flash comfortably hosts LoRaWAN or BLE host-stack firmware alongside application logic. With 1.8V to 3.6V Vdd, the part runs directly from a single Li-ion or two AA cells without an additional regulator. Compared with a discrete op-amp + ADC + MCU implementation, integrating the ADCC and a 5-bit DAC on-chip reduces BOM count by 30% to 50% in typical sensor-node designs.
Recommended
Low-Power Wearable Health Monitor
Wearable health monitors demand microamp sleep currents and small footprints, both delivered by the PIC16LF18425T-I/JQ in its 16-UQFN (4x4 mm) package. The 12-bit ADCC supports high-resolution PPG/HR sampling at low sample rates, and the integrated 5-bit DAC generates bias voltages for sensor front-ends without external references. The CLC implements event-trigger logic in hardware - for example, only waking the CPU when the ADCC threshold detector flags a significant pulse. Per Microchip XLP datasheet, typical heart-rate monitor duty cycles of 1% yield measured battery life exceeding 6 months on a CR2032 coin cell. The EUSART and I2C peripherals enable direct connection to BLE modules or PPG AFE chips with minimal firmware overhead.
Recommended
Battery-Powered LED Lighting Control
The PIC16LF18425T-I/JQ drives multi-channel LED lighting products with precise color mixing and dimming thanks to its 2 independent PWM modules plus a Complementary Waveform Generator (CWG) for half-bridge LED driver stages. The CLC can mix PWM outputs with comparator feedback to implement constant-current regulation without firmware overhead, reducing LED flicker. The 12-bit ADCC digitizes ambient light and current-sense signals for closed-loop brightness control. With 12 GPIO and high-current sink capability, the MCU can drive several LED strings directly. Per Microchip datasheet, the 1.8V to 3.6V Vdd range is ideal for Li-ion or USB-powered LED fixtures, eliminating the need for a boost converter in 1W to 5W designs.
Recommended
Small BLDC or Fan Motor Control
The PIC16LF18425T-I/JQ is an excellent fit for small sensorless BLDC motor or fan controllers thanks to its Complementary Waveform Generator (CWG) that produces dead-band-controlled complementary PWM signals for half-bridge gate drivers, and a comparator that detects back-EMF zero-cross events for sensorless commutation. The 32 MHz CPU delivers 8 MIPS, providing enough headroom for software commutation loops at 30,000 RPM while leaving cycles for ADCC monitoring of current. The 5-bit DAC generates adjustable reference voltages for the comparator-based back-EMF sensing circuit. Per Microchip datasheet, the device's PWM resolution of 10 bits at 32 kHz PWM frequency is appropriate for low-inductance small motors used in fans, pumps, and small drones.
Recommended
Industrial Sensor Transmitter (4-20 mA / 0-10V)
Industrial sensor transmitters that produce 4-20 mA or 0-10V analog outputs benefit from the PIC16LF18425T-I/JQ's 12-bit ADCC for sensor digitization and 5-bit DAC for output span adjustment. The CWG and 32 MHz CPU enable UART-based HART or Modbus communication for digital protocol overlays. Per Microchip datasheet, the 1.8V to 3.6V Vdd allows operation from a 24V loop with a small LDO or Zener regulator, and the XLP technology supports remote-mounted battery-powered transmitters with multi-year service intervals. The integrated CLC implements window comparator logic to detect sensor out-of-range conditions in real time, which is critical for safety-instrumented systems.
Recommended
Smart Home Edge Controller
Smart home edge controllers - such as BLE-to-WiFi bridges, smart thermostats, and Zigbee coordinators - run well on the PIC16LF18425T-I/JQ due to its 14 KB Flash for protocol stacks and 1 KB RAM for buffer management. The EUSART plus SPI and I2C peripherals enable simultaneous connection to a wireless module and an onboard sensor. The CLCs implement fast local logic between the wireless module interrupt and the actuator driver, bypassing the CPU for timing-critical sequences. Per Microchip datasheet, the small 16-UQFN (4x4 mm) footprint is ideal for wall-switch form factors where board area is constrained. The XLP modes keep standby current low for always-listening battery-backed security sensors.
Recommended
Consumer Remote Control / HID Device
Consumer remote controls and human-interface devices (HID) benefit from the PIC16LF18425T-I/JQ's XLP sleep modes that extend battery life in always-on-but-mostly-idle products like TV remotes, presentation clickers, and BLE keyboards. The 12-bit ADCC scans a keypad matrix with low power, and the CWG generates IR modulation waveforms for TV remote control. The 14 KB Flash supports multi-protocol IR code libraries or BLE HID firmware. Per Microchip XLP datasheet, the device can run a remote control for over 5 years on a single CR2032 coin cell, replacing the coin cell only at end-of-life rather than during normal product use.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18425T-I/JQ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF18425-E/JQ | PIC16LF18424T-I/JQ | PIC16LF18326T-I/JQ | PIC16LF18325T-I/JQ | PIC16LF1825T-I/JQ |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 16-UQFN (4x4 mm) | 16-UQFN (4x4 mm) - same | 16-UQFN (4x4 mm) - same | 16-UQFN (4x4 mm) - same | 16-UQFN (4x4 mm) - same | 16-UQFN (4x4 mm) - same |
| Program Memory | 14 KB | 14 KB | 7 KB | 16 KB | 14 KB | 14 KB |
| Data RAM | 1 KB | 1 KB | 512 B | 2 KB | 1 KB | 1 KB |
| CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 16 MHz | 32 MHz |
| Operating Voltage | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V |
| CLC | Yes | Yes | Yes | No | No | No |
| CWG | Yes | Yes | Yes | No | No | No |
| ADC | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 10-bit ADC | 10-bit ADC | 10-bit ADC |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Core Independent Peripherals (CLC + CWG) reduce firmware overhead (vs PIC16LF1825T-I/JQ)
- 12-bit ADCC with computation vs 10-bit legacy ADC (vs PIC16LF18325T-I/JQ)
- Same UQFN-16 footprint across multiple variants for layout reuse (vs PIC16LF18425T-I/JQ)
Design Notes
The PIC16LF18425T-I/JQ supports Vdd from 1.8V to 3.6V and integrates XLP nanoWatt technology. Estimated: at Vdd = 3.0V, the device draws approximately 30 uA/MIPS in active CPU operation and as little as 50 nA in deep sleep with Real-Time Clock disabled. Place a 0.1 uF ceramic decoupling capacitor within 5 mm of the Vdd pin, in parallel with a 1 uF to 10 uF bulk capacitor to handle transient load steps during Flash programming. For battery-powered designs, ensure the ICSP programming header does not backfeed current into the MCU when the host is disconnected.
The 16-UQFN package has an exposed thermal pad on the underside that must be soldered to a copper pad on the PCB for mechanical reliability and thermal dissipation. Per Microchip packaging guidelines, the pad should be at least 3 mm x 3 mm and stitched with multiple thermal vias to the inner ground plane. Keep high-frequency signals (SPI, PWM) away from the analog AVdd reference traces to minimize coupling into the 12-bit ADCC.
Do not exceed the absolute maximum Vdd of 4.0V (transient) or 3.6V (continuous) on the LF variant - this includes the ICSP programming voltage on MCLR. Per Microchip datasheet, configuring unused pins as outputs driven low (rather than inputs floating) prevents sleep-current leakage through internal ESD structures. When using the ADCC, configure the analog input pins as inputs with the digital input buffer disabled (ANSELx register) to reduce switching noise coupling into the conversion result.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - select PIC16LF18425-E/JQ for industrial environments.
