PIC16LF18425-E/P - 8-Bit XLP MCU, 14KB Flash, 32MHz | Microchip
MPN: PIC16LF18425-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.1 | $2.10 |
| 10 | $1.92 | $19.20 |
| 100 | $1.65 | $165.00 |
| 500 | $1.45 | $725.00 |
| 1,000 | $1.28 | $1,280.00 |
PIC16LF18425-E/P Overview
A microcontroller (MCU) is a single-chip computer that combines a CPU core, non-volatile program memory, volatile RAM, and a rich set of peripherals into one IC. The PIC16LF18425 sits within the broader PIC16 (8-bit RISC) family, which itself belongs to the larger category of embedded microcontrollers and, at the highest level, the semiconductor / integrated circuit product hierarchy. Microchip's PIC16F184xx generation specifically adds Core Independent Peripherals (CIPs) such as the Configurable Logic Cell (CLC), Complementary Waveform Generator (CWG), Numerically Controlled Oscillator (NCO), and a 12-bit ADC with Computation (ADCC), giving it analog and timing capability well beyond traditional PIC16 parts.
Key feature highlights include up to 32MHz operation from the internal 32MHz HF oscillator, 1KB of SRAM, 256 bytes of EEPROM, a 12-bit differential ADCC, a 5-bit DAC, multiple comparators, EUSART, SPI and I2C peripherals, two PWM/CWG generators, and nanoWatt XLP sleep modes with current draw down in the sub-microamp range. The -E/P operating-temperature suffix denotes the -40C to +125C extended industrial grade.
Architecturally, the PIC16LF18425 uses an 8-bit Harvard RISC core with a 14-bit instruction word, complemented by a CIP-rich analog and timing subsystem that lets peripherals operate without CPU wake-ups. The XLP nanoWatt technology uses intelligent clock gating and a deep-sleep controller to keep sleep current extremely low, enabling years of operation from a single coin cell.
Typical applications include battery-powered IoT sensor nodes, low-power remote controls, smoke and CO detectors, wearable health monitors, and small appliances. Designers favor this part when they need an upgrade path from legacy PIC16F1825 designs while gaining ADCC and CWG without migrating to a Cortex-M0 core.
For new layouts the -E/P suffix requires no special precautions beyond the standard 0.1-inch PDIP footprint, but firmware migration from older PIC16F1825 silicon should be reviewed against the PIC16F18425 silicon errata. This page combines distributor pricing, verified drop-in alternatives, and design notes not typically found on the manufacturer datasheet alone.
Drop-in alternatives for PIC16LF18425-E/P — 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/P (same form factor and footprint) — differing in ADC, Package, Core, I/O Pins, DAC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF18425-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF18425-E/JQ
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC16LF18424-E/P
✅ Drop-In✓ In Stock
$1.28 / Unit
View Datasheet →PIC16LF18346-E/P
✅ Drop-In✓ In Stock
$1.52 / Unit
View Datasheet →PIC16LF18345-E/P
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC16LF1826-E/P
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC16LF18425-E/P Maximum Ratings & Electrical Characteristics
| Core | PIC16 8-bit RISC, Harvard architecture, 14-bit instruction word |
| Family | PIC16F184xx (XLP 16F family) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data SRAM | 1 KB |
| EEPROM | 256 bytes |
| Maximum CPU Clock | 32 MHz |
| Supply Voltage Range | 1.8 V to 3.6 V (LF: low-voltage variant) |
| Operating Temperature Range | -40 C to +125 C (extended industrial, -E suffix) |
| Package | 14-PDIP (0.300 inch, 7.62 mm pitch) |
| Pin Count | 14 |
| ADC | 12-bit ADC with Computation (ADCC), differential |
| DAC | 5-bit DAC |
| Communication Peripherals | EUSART, SPI, I2C |
| PWM / Waveform Generators | 2x PWM, Complementary Waveform Generator (CWG) |
| Core Independent Peripherals | CLC, CWG, NCO, ADCC |
| Low-Power Modes | nanoWatt XLP (deep sleep with sub-uA current) |
| Data Memory Bus Width | 8-bit |
| Instruction Set Architecture | PIC16 enhanced mid-range |
| RoHS Status | Compliant |
| Mounting Type | Through-Hole (PDIP) |
PIC16LF18425-E/P Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8V to 3.6V) |
| Pin 2 | RA0 — Bidirectional I/O; analog input AN0 |
| Pin 3 | RA1 — Bidirectional I/O; analog input AN1 |
| Pin 4 | RA2 — Bidirectional I/O; analog input AN2 |
| Pin 5 | MCLR/VPP — Master Clear / programming voltage input |
| Pin 6 | RA4 — Bidirectional I/O; analog input AN4 |
| Pin 7 | RA5 — Bidirectional I/O; analog input AN5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RC0 — Bidirectional I/O; analog input AN16 |
| Pin 10 | RC1 — Bidirectional I/O; analog input AN17 |
| Pin 11 | RC2 — Bidirectional I/O; analog input AN18 |
| Pin 12 | RC3 — Bidirectional I/O; shared with I2C SCL |
| Pin 13 | RC4 — Bidirectional I/O; shared with I2C SDA |
| Pin 14 | RC5 — Bidirectional I/O |
Typical Applications
PIC16LF18425-E/P is suitable for 6 applications: Battery-Powered IoT Sensor Node, Wireless Remote Control / Key Fob, Smoke and Carbon Monoxide Detector, Wearable Health Monitor, Smart Home Sensor Endpoint, Small Appliance Control Board.
Battery-Powered IoT Sensor Node
The PIC16LF18425-E/P fits battery-powered IoT sensor nodes because its 1.8V-3.6V supply matches two alkaline cells in series and its XLP nanoWatt technology drops sleep current below 100 nA per datasheet. The 12-bit ADCC samples a thermistor or shunt resistor on demand, then triggers a DMA-style peripheral chain that wakes the CPU only to format an EUSART packet. With 14KB flash and 1KB SRAM, it runs a state-machine firmware comfortably without RTOS overhead, extending coin-cell life to multi-year timeframes.
Recommended
Wireless Remote Control / Key Fob
Remote controls benefit from the PIC16LF18425-E/P's deep-sleep current under 100 nA and its wake-on-pin-change capability, which lets the MCU sit idle for years and respond instantly to button press. The 32MHz HF oscillator drives SPI to a sub-GHz or 2.4GHz transceiver during packet bursts only, while the CWG generates precise modulation tones. With 256B EEPROM, the MCU stores learned pairing codes without external NVM, keeping BOM cost minimal in volume.
Recommended
Smoke and Carbon Monoxide Detector
Smoke and CO detectors benefit from the PIC16LF18425-E/P's combination of the differential 12-bit ADCC for photoelectric chamber readouts and the on-chip comparator for electrochemical cell biasing. Its extended industrial temperature range (-40C to +125C) ensures operation in unheated attics, while the nanoWatt XLP sleep mode keeps quiescent current low enough for 10-year sealed-battery designs per UL 217 timelines. The CWG drives the piezo horn directly without external MOSFETs, and the 256B EEPROM stores calibration constants.
Recommended
Wearable Health Monitor
Wearable health monitors use the PIC16LF18425-E/P for its sub-microamp sleep current and tiny 14-PDIP-friendly die, which suits small medical-grade enclosures. The ADCC oversamples photoplethysmography (PPG) and bio-impedance channels, while the 5-bit DAC biases the LED driver transistor. Heart-rate firmware fits comfortably in 14KB of flash with I2C communication to a Bosch-style accelerometer. Extended industrial temperature tolerance ensures wrist-worn operation under varied environmental stresses.
Recommended
Smart Home Sensor Endpoint
Smart home endpoints such as door/window contacts and PIR motion detectors use the PIC16LF18425-E/P because the CLC can AND multiple sensor inputs to produce a wake interrupt without waking the CPU until needed. The 1KB SRAM and 14KB flash support Zigbee or BLE stack sub-tasks offloaded to an external radio. Fail-safe operation is enhanced by the WDT with its own dedicated 32kHz LPRC oscillator per Microchip's documentation.
Recommended
Small Appliance Control Board
Small appliances like coffee makers, blenders, and toaster ovens use the PIC16LF18425-E/P for combined user I/O, motor control, and temperature sensing. The CWG generates complementary PWM to drive a TRIAC-based heater or BLDC motor, the 12-bit ADCC reads thermistor bridges, and the EUSART links to a front-panel UI module. The through-hole PDIP package survives hand-rework during prototype iteration, and the 256B EEPROM stores user preferences through power cycles.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18425-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF18425-I/P | PIC16LF18425-E/JQ | PIC16LF18424-E/P | PIC16LF18346-E/P | PIC16LF1826-E/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-PDIP | 14-PDIP (same) | 14-PDIP (same) | 14-PDIP (same) | 14-PDIP (same) | 14-PDIP (same) |
| Flash Memory | 14 KB | 14 KB | 14 KB | 7 KB | 28 KB | 16 KB instruction width |
| SRAM | 1 KB | 1 KB | 1 KB | 512 B | 2 KB | 512 B |
| Maximum Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Operating Temperature Range | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) |
| Core Independent Peripherals (ADCC, CLC, CWG, NCO) | Yes (full set) | Yes (full set) | Yes (full set) | Yes (reduced) | Yes (full set) | No (legacy PIC16F182x family) |
| Approx. Unit Price at 1pc (USD) | 2.10 | ~2.05 | ~2.20 | ~1.85 | ~2.45 | ~1.95 |
Key Differentiators
- Core Independent Peripherals in a 14KB flash, 14-pin DIP package (vs PIC16LF1826-E/P)
- Doubled program memory in the same footprint vs PIC16LF18424-E/P (vs PIC16LF18424-E/P)
- Extended -40C to +125C industrial temperature range (vs PIC16LF18425-I/P)
Design Notes
Estimated: at 3.3V VDD, 32MHz operation draws ~3 mA active current; sleep mode with WDT off drops below 100 nA per datasheet DC characteristics. For battery sizing, integrate active duty cycle - 1ms wake per second averages to ~5 uA total system current, supporting 5+ years on a 2200 mAh Li-coin cell.
Place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 1) and a 10 uF bulk capacitor at the board power entry. The MCLR/VPP pin requires a 10 kohm pull-up to VDD for normal operation; in-circuit serial programming (ICSP) can be implemented with the ICSPDAT and ICSPCLK pins mapped to the same RA0/RA1 pins used for general I/O.
Do not assume pin assignments match legacy PIC16F1825-E/P silicon without checking the pin allocation table - although the 14-pin PDIP footprint is identical, some peripheral functions differ. Per Microchip's migration guide, the PIC16LF18425 added the CLC, ADCC, and NCO peripherals without removing legacy PPS assignments, but unused peripherals should be disabled in firmware to minimize sleep current.
The 14-PDIP package has a measured theta_JA of approximately 75 C/W in still air, easily handling 50 mW continuous dissipation without derating. For continuous higher loads, add copper area or forced airflow; the -E temperature grade guarantees operation to +125C junction temperature, with Microchip specifying +150C absolute maximum.
Compliance Information
RoHS compliant and Pb-free per Microchip product page; the -E industrial temperature suffix is not the same as AEC-Q100 automotive qualification (choose PIC16F18425-E/P automotive-grade variants separately for automotive use).
