PIC16LF18854-E/MV - 8-bit XLP MCU 32MHz 7KB Flash 28-UQFN | Microchip
MPN: PIC16LF18854-E/MV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.1 | $2.10 |
| 10 | $1.89 | $18.90 |
| 100 | $1.62 | $162.00 |
| 500 | $1.38 | $690.00 |
| 1,000 | $1.18 | $1,180.00 |
| 3,000 | $1.05 | $3,150.00 |
PIC16LF18854-E/MV Overview
A PIC microcontroller (MCU) is a compact, self-contained computer-on-a-chip that integrates an 8-bit CPU core, Flash program memory, SRAM, EEPROM, and a rich set of peripherals such as ADC, timers, communication ports, and configurable I/O. PIC MCUs sit within the broader hierarchy: microcontroller -> embedded processor -> semiconductor -> integrated circuit. They are the workhorse of low-cost, low-power embedded designs where deterministic behavior, simple toolchains, and ultra-low standby current are essential.
Key features include the 10-bit ADC2 (ADC with computation) for hardware averaging and threshold comparisons, a 5-/8-bit DAC for analog output, configurable logic cells, complementary waveform generators, Hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT), and CRC/Scan for functional safety. The XLP technology delivers typical sleep currents in the nanoamp range and active currents below 200 uA/MHz, making it well-suited to energy-harvesting and battery-backed designs.
Architecturally, the device uses the enhanced mid-range PIC16 core with a 14-bit instruction word, a hardware multiplier, and an interrupt controller with vectored priorities. Peripherals connect through Microchip's Peripheral Pin Select (PPS) which allows flexible pin remapping for board layout optimization.
Typical applications include IoT sensor nodes, consumer appliances, smart home devices, industrial sensor interfaces, low-power handheld instruments, and automotive body controllers. The compact 28-UQFN footprint supports space-constrained PCB layouts.
When designing with this device, allocate one of the two SPI or two I2C ports carefully when adding an external sensor because PPS remapping must avoid signal-integrity conflicts. Always verify the maximum I/O count of 25 pins when migrating from the larger 40-/44-pin variants in the same family.
This page synthesizes distributor pricing, drop-in alternatives in the same UQFN-28 footprint, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16LF18854-E/MV — 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 PIC16LF18854-E/MV (same form factor and footprint) — differing in ADC, Package, Operating Temperature, Program Memory (Flash), DAC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF18854T-E/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF18854-I/MV
✅ Drop-In✓ In Stock
$1.35 / Unit
View Datasheet →PIC16LF18854-E/ML
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16F18854-E/MV
✅ Drop-In✓ In Stock
$0.72 / Unit
View Datasheet →PIC16LF18855-E/MV
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC16LF18857-E/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF18876-E/MV
✅ Drop-In✓ In Stock
$1.85 / Unit
View Datasheet →PIC16LF18854-E/MV Maximum Ratings & Electrical Characteristics
| Core | PIC16 8-bit RISC |
| Instruction Set Width | 14-bit (enhanced mid-range) |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14) |
| Data SRAM | 512 bytes |
| Data EEPROM | 256 bytes |
| Operating Voltage Range | 1.8 V to 3.6 V (F variant at 16 MHz up to 3.6 V; LF operates to 3.6 V at 32 MHz) |
| I/O Pins | Up to 25 |
| ADC | 10-bit ADC2 (with computation) |
| DAC | 5-bit / 8-bit |
| Comparators | Yes |
| Communication Interfaces | EUSART, 2x SPI, 2x I2C |
| Timers | Multiple 8/16-bit with HLT and WWDT |
| Peripheral Pin Select (PPS) | Yes |
| Package | 28-pin UQFN (4x4 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +125C (E = extended) |
| MSL Level | 1 |
| RoHS Status | Compliant |
| eXtreme Low Power (XLP) | Yes (nanoamp sleep) |
PIC16LF18854-E/MV Pin Configuration
| Pin 1 | RA5 — I/O port A bit 5 / PPS-capable |
| Pin 2 | RA4 — I/O port A bit 4 |
| Pin 3 | RA3 — I/O port A bit 3 |
| Pin 4 | RA2 — I/O port A bit 2 |
| Pin 5 | RA1 — I/O port A bit 1 / DAC reference |
| Pin 6 | RA0 — I/O port A bit 0 |
| Pin 7 | VSS — Ground |
| Pin 8 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Pin 9 | RB5 — I/O port B bit 5 / PPS-capable |
| Pin 10 | RB4 — I/O port B bit 4 / SCL |
| Pin 11 | RB3 — I/O port B bit 3 |
| Pin 12 | RB2 — I/O port B bit 2 |
| Pin 13 | RB1 — I/O port B bit 1 |
| Pin 14 | RB0 — I/O port B bit 0 / interrupt-on-change |
| Pin 15 | RC7 — I/O port C bit 7 / RX |
| Pin 16 | RC6 — I/O port C bit 6 / TX |
| Pin 17 | RC5 — I/O port C bit 5 |
| Pin 18 | RC4 — I/O port C bit 4 |
| Pin 19 | RC3 — I/O port C bit 3 / SCL |
| Pin 20 | RC2 — I/O port C bit 2 / SDA |
| Pin 21 | RC1 — I/O port C bit 1 / CCP1 |
| Pin 22 | RC0 — I/O port C bit 0 |
| Pin 23 | RA7 — I/O port A bit 7 / oscillator |
| Pin 24 | RA6 — I/O port A bit 6 / oscillator |
| Pin 25 | VSS — Ground (digital) |
| Pin 26 | VDD — Positive supply (core) |
| Pin 27 | RB7 — I/O port B bit 7 / ICS PGD |
| Pin 28 | RB6 — I/O port B bit 6 / ICS PGC |
Typical Applications
PIC16LF18854-E/MV is suitable for 7 applications: Battery-Powered IoT Sensor Node, Consumer Appliance Control Board, Industrial Sensor Interface Module, Smart Home Device Controller, Automotive Body Electronics, Portable Medical Monitoring Device, Low-Power Wireless Remote Control.
Battery-Powered IoT Sensor Node
The PIC16LF18854-E/MV is well suited for battery-powered IoT sensor nodes thanks to its eXtreme Low Power (XLP) technology with nanoamp-range sleep currents and 1.8 V to 3.6 V wide operating voltage. The 32 MHz PIC16 core executes sensor sampling and data conditioning while the 10-bit ADC2 with computation offloads averaging and threshold checks from the CPU. With 7 KB Flash and 256 B EEPROM, designers can store calibration data and application firmware for years of battery life on a single CR2032.
Recommended
Consumer Appliance Control Board
In washing machines, coffee makers, and small kitchen appliances, the PIC16LF18854-E/MV provides the central control loop with 25 I/O pins to drive relays, keypads, and indicator LEDs. The PWM modules and complementary waveform generators support motor and TRIAC phase control. Its 32 MHz CPU delivers deterministic timing for safety interlocks while the EUSART and two SPI/I2C ports connect to HMI displays and wireless modules. The wide 1.8 V to 3.6 V supply simplifies direct Li-ion battery integration.
Recommended
Industrial Sensor Interface Module
The PIC16LF18854-E/MV serves as a low-cost analog front-end controller in industrial sensor modules, interfacing 4 mA to 20 mA loops, RTDs, and bridge sensors through the on-chip 10-bit ADC2 and comparators. The 5-/8-bit DAC generates excitation voltages or offset references. PPS pin remapping allows flexible PCB routing, and the CRC/SCAN peripheral adds functional safety for SIL-1 capable designs. The extended -40C to +125C temperature range supports factory floor deployment.
Recommended
Smart Home Device Controller
For smart thermostats, lighting controllers, and door/window sensors, the PIC16LF18854-E/MV provides Zigbee/BLE-ready connectivity through its EUSART and two SPI/I2C ports that interface with popular wireless modules. The 7 KB Flash is sufficient for application logic and OTA-ready bootloaders. XLP nanoamp sleep keeps battery-operated sensors alive for years. The compact 28-UQFN 4x4 mm package fits behind wall switches and inside small enclosures without thermal concerns.
Recommended
Automotive Body Electronics
In automotive body controllers, mirror adjusters, and lighting modules, the PIC16LF18854-E/MV drives LED arrays and reads switch inputs through its 25 I/O pins. The EUSART supports LIN bus communication and the WWDT plus CRC/SCAN features provide functional safety. Note that for AEC-Q100 qualified automotive applications, designers should select the PIC16F18854-E/MV automotive grade variant, which uses the same die and pinout but with automotive qualification.
Recommended
Portable Medical Monitoring Device
For portable health monitors such as pulse oximeters and wearable thermometers, the PIC16LF18854-E/MV's XLP sleep currents below 100 nA extend battery life dramatically between measurements. The ADC2 with hardware computation handles sensor signal conditioning in low-power mode while the CPU sleeps. The 256 B EEPROM stores patient calibration constants across power cycles. The wide operating voltage supports direct Li-ion or 2x AA battery operation without external regulators.
Recommended
Low-Power Wireless Remote Control
The PIC16LF18854-E/MV is ideal for handheld remote controls where standby battery life measured in years matters. Its nanoamp sleep current combined with fast wake-up from the on-chip timers enables instant response on button press. The 7 KB Flash supports multi-protocol IR/RF encoding, while the 25 I/O accommodates matrix keypads and LED indicators. PPS routing allows the PCB to be tuned for antenna placement near the wireless module without CPU performance penalty.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18854-E/MV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF18854T-E/MV | PIC16LF18854-I/MV | PIC16LF18854-E/ML | PIC16F18854-E/MV | PIC16LF18855-E/MV |
|---|---|---|---|---|---|---|
| Package | 28-UQFN (4x4 mm) | 28-UQFN (4x4 mm) | 28-UQFN (4x4 mm) | 28-QFN (6x6 mm) | 28-UQFN (4x4 mm) | 28-UQFN (4x4 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 7 KB (4K x 14) | 7 KB | 7 KB | 7 KB | 7 KB | 14 KB |
| SRAM | 512 bytes | 512 bytes | 512 bytes | 512 bytes | 512 bytes | 1 KB |
| Operating Voltage | 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 | 2.3 V to 5.5 V | 1.8 V to 3.6 V |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| ADC | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC2 |
| Operating Temperature | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) |
| Unit Price (qty 1, as of 2026-09-24) | $2.10 | $2.10 (typical) | $2.00 (typical) | $2.30 (typical) | $2.00 (typical) | $2.40 (typical) |
Key Differentiators
- Same die with tape-and-reel packaging for high-volume SMT (vs PIC16LF18854T-E/MV)
- Wider operating voltage range with same low-power features (vs PIC16F18854-E/MV)
- Larger Flash and SRAM in the same 28-UQFN package (vs PIC16LF18855-E/MV)
- Industrial temperature grade option in same package (vs PIC16LF18854-I/MV)
Design Notes
Estimated: at 32 MHz active and 3.3 V supply, typical core current is ~2 mA. Sleep current with peripherals off drops below 100 nA per the XLP specifications. Always include a 100 nF decoupling capacitor within 5 mm of each VDD/VSS pair and a 10 uF bulk capacitor near the MCU to handle digital load transients during ADC conversions and active mode transitions.
The 28-UQFN 4x4 mm package has a center exposed thermal pad that must be soldered to the PCB ground plane for mechanical reliability and thermal performance. Per Microchip packaging guidelines, the land pattern should use a 2.0 mm x 2.0 mm thermal pad with at least 8 thermal vias to the inner ground plane. Trace routing under the package is restricted by the central pad - plan I/O fan-out carefully.
Do not assume the PIC16F18854 and PIC16LF18854 are interchangeable in 1.8 V designs - the F variant operates only from 2.3 V to 5.5 V and will not start below 2.3 V. Also ensure the MCLR pull-up is correctly configured; floating MCLR pins cause intermittent reset behavior. When using PPS, avoid assigning the same peripheral output to two pins simultaneously - the unlock sequence must be performed correctly or PPS registers will silently reject writes.
When routing high-speed SPI or EUSART signals above 8 MHz, maintain characteristic impedance of 50 ohms and keep trace lengths under 25 mm to avoid reflections. The PPS-mapped UART pins can be moved to optimal PCB locations, but always verify the alternate-pin assignment in the device configuration bits before PCB fabrication - changing the assignment late in the design cycle forces a board respin.
Compliance Information
RoHS and REACH compliant per Microchip product page. Standard PIC16LF18854-E/MV is not AEC-Q100 qualified - use the automotive-grade variant for AEC-Q100 requirements. Lead-free and halogen-free per Microchip packaging materials declaration.
