PIC16F18854-E/MV - 32MHz 8-Bit XLP MCU, 7KB Flash | Microchip
MPN: PIC16F18854-E/MV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.38 | $1.38 |
| 10 | $1.21 | $12.10 |
| 100 | $1.04 | $104.00 |
| 500 | $0.92 | $460.00 |
| 1,000 | $0.83 | $830.00 |
| 3,000 | $0.72 | $2,160.00 |
PIC16F18854-E/MV Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data RAM, non-volatile EEPROM, and a mix of peripherals onto one silicon die. The PIC16F family sits in Microchip's mid-range tier - more capable than the baseline PIC10/12/16 families yet simpler than the dsPIC or PIC32 lines - making it the workhorse for general-purpose embedded control. Within that hierarchy, the 'F' suffix denotes Flash program memory, '1885X/7X' identifies the family generation that adds Core Independent Peripherals (CIPs) and eXtreme Low Power (XLP) technology.
Key features of the PIC16F18854-E/MV include a 10-bit ADC with up to 24 channels, five 8-bit timers plus one 16-bit timer, two CCP modules, four 10-bit PWMs with complementary outputs, two UART/USART, two SPI, two I2C (MSSP), a Hardware Limit Timer (HLT), a Windowed Watchdog Timer (WWDT), CRC/SCAN memory safety, and a Functional Safety (FuSa) classification. XLP technology delivers a typical sleep current below 50 nA, suiting battery-powered designs. The 28-UQFN package integrates 25 I/O pins with peripheral pin select flexibility.
Typical applications include low-power IoT sensor nodes, automotive body and lighting controls, consumer appliances with capacitive touch, industrial HMI and motor control loops, and any battery-powered product where deterministic 8-bit processing, hardware CIPs, and ultra-low sleep current must coexist in a compact 4x4 mm footprint.
When designing with this device, take advantage of the CIPs to offload tasks like signal conditioning, waveform generation, and timing from the CPU - this lets the core stay in sleep longer. Plan decoupling per the family data sheet and follow Microchip's MQTT/Touch/Class B Safety application notes for production-ready firmware.
This page combines distributor pricing, drop-in alternatives, and applied design notes not bundled in the manufacturer data sheet, giving engineers a single reference for component selection and BOM risk review.
Drop-in alternatives for PIC16F18854-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 PIC16F18854-E/MV (same form factor and footprint) — differing in ADC, I/O Pins, Instruction Set, Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18855-E/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18857-E/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18876-E/MV
✅ Drop-In✓ In Stock
$1.95 / Unit
View Datasheet →PIC16F18877-E/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F15344-E/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18854-E/MV Maximum Ratings & Electrical Characteristics
| Core | PIC16 enhanced mid-range 8-bit |
| Instruction Set | 8-bit (14-bit instruction word) |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14) |
| SRAM | 512 bytes |
| EEPROM | 256 bytes |
| Supply Voltage Range | 1.8 V to 5.5 V |
| I/O Pins | 25 |
| ADC | 10-bit, up to 24 channels |
| DAC | 5-bit / 10-bit selectable |
| Timers | 5 x 8-bit + 1 x 16-bit |
| CCP / PWM | 2 CCP, 4 10-bit PWM (complementary) |
| Communication | 2x UART, 2x SPI, 2x I2C (MSSP) |
| Operating Temperature | -40C to +125C (E = Extended) |
| Package | 28-UQFN (4x4 mm) with exposed pad |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16F18854-E/MV Pin Configuration
| Pin 1 | RA5 — Bidirectional I/O with interrupt, ADC input |
| Pin 2 | RA4 — Bidirectional I/O with interrupt, ADC input |
| Pin 3 | RA3 — Bidirectional I/O with interrupt, reference voltage input |
| Pin 4 | RA2 — Bidirectional I/O with interrupt, ADC input |
| Pin 5 | RA1 — Bidirectional I/O with interrupt, ADC input |
| Pin 6 | RA0 — Bidirectional I/O with interrupt, ADC input |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — Positive supply voltage (1.8 V to 5.5 V) |
| Pin 9 | RA7 — Bidirectional I/O with interrupt, OSC1 |
| Pin 10 | RA6 — Bidirectional I/O with interrupt, OSC2 |
| Pin 11 | RC0 — Bidirectional I/O with interrupt, SOSCO |
| Pin 12 | RC1 — Bidirectional I/O with interrupt, SOSCI |
| Pin 13 | RC2 — Bidirectional I/O with interrupt, ADC input |
| Pin 14 | RC3 — Bidirectional I/O with interrupt, ADC input |
| Pin 15 | RC4 — Bidirectional I/O with interrupt, ADC input |
| Pin 16 | RC5 — Bidirectional I/O with interrupt, ADC input |
| Pin 17 | RC6 — Bidirectional I/O, TX/CK for EUSART |
| Pin 18 | RC7 — Bidirectional I/O, RX/DT for EUSART |
| Pin 19 | RB7 — Bidirectional I/O with interrupt, ADC input |
| Pin 20 | RB6 — Bidirectional I/O with interrupt, ADC input |
| Pin 21 | RB5 — Bidirectional I/O with interrupt, ADC input, PWM |
| Pin 22 | RB4 — Bidirectional I/O with interrupt, ADC input, PWM |
| Pin 23 | RB3 — Bidirectional I/O with interrupt, ADC input, PWM |
| Pin 24 | RB2 — Bidirectional I/O with interrupt, ADC input, PWM |
| Pin 25 | RB1 — Bidirectional I/O with interrupt, ADC input, PWM |
| Pin 26 | RB0 — Bidirectional I/O with interrupt, ADC input, PWM |
| Pin 27 | VSS — Ground reference (exposed pad) |
| Pin 28 | VDD — Positive supply (exposed pad) |
Typical Applications
PIC16F18854-E/MV is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Automotive Body and Lighting Control, Consumer Appliance HMI with Touch, Industrial Sensor and Process Loops, Portable Medical and Wellness Devices, Small DC Motor and Fan Control.
Battery-Powered IoT Sensor Nodes
The PIC16F18854-E/MV suits battery-powered IoT sensor nodes because its eXtreme Low Power (XLP) technology drives sleep current below 50 nA at 1.8 V, while the integrated 10-bit ADC with up to 24 channels directly digitizes analog sensors without an external front-end. The on-chip CRC/SCAN and Windowed Watchdog Timer support Class B safety requirements, allowing unattended sensor nodes to run for years on a single coin cell when paired with Microchip's low-power RF transceivers.
Recommended
Automotive Body and Lighting Control
The PIC16F18854-E/MV's extended -40C to +125C temperature rating and Functional Safety (FuSa) classification make it appropriate for automotive body controllers, interior lighting, and mirror-adjust modules. Its four 10-bit PWMs with complementary outputs drive LEDs and small DC motors directly, while two UART channels handle LIN bus communication after an external LIN transceiver. The compact 28-UQFN 4x4 mm package fits the tight PCB area of mirror modules and door-handle electronics.
Recommended
Consumer Appliance HMI with Touch
The PIC16F18854-E/MV integrates Microchip's mTouch capacitive touch via the on-chip ADC and CVD peripheral, eliminating the need for an external touch IC in washing machines, microwave ovens, and induction cooktops. Core Independent Peripherals handle slider scanning and LED dimming while the CPU sleeps, reducing BOM cost and EMI. The 256-byte EEPROM stores user preferences and fault history without external memory, fitting in the 4x4 mm UQFN footprint beneath the touch pad.
Recommended
Industrial Sensor and Process Loops
The PIC16F18854-E/MV supports industrial 4-20 mA loop transmitters, RTD conditioning, and small PLC I/O modules thanks to its 24-channel 10-bit ADC and dual I2C/SPI buses. The Hardware Limit Timer (HLT) and Windowed Watchdog Timer (WWDT) provide deterministic safety behavior required in factory automation, while CRC/SCAN protects Flash memory against bit flips. Its 1.8 V to 5.5 V supply range handles 3.3 V and 5 V industrial backplanes without level shifters.
Recommended
Portable Medical and Wellness Devices
The PIC16F18854-E/MV fits portable medical and wellness devices such as blood-pressure monitors, pulse oximeters, and smart thermometers where battery life and small PCB area are critical. Its sub-50 nA XLP sleep current enables months of standby from a single AAA cell, and the 10-bit ADC measures battery voltage, sensor signals, and temperature from one chip. The Functional Safety classification and CRC memory scan support IEC 60730-class safety software requirements for home healthcare.
Recommended
Small DC Motor and Fan Control
The PIC16F18854-E/MV drives small brushless DC fans, pumps, and stepper motors via its four complementary 10-bit PWM channels and Hardware Limit Timer (HLT). The integrated CIPs can generate center-aligned PWM and dead-band timing in hardware, freeing the CPU for sensor feedback and protection logic. Its 32 MHz core closes a 10 kHz PID control loop with significant margin, while the 28-UQFN footprint fits beneath the motor housing on the same PCB.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F18854-E/MV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18855-E/MV | PIC16F18857-E/MV | PIC16F18876-E/MV | PIC16F18877-E/MV | PIC16F15344-E/MV |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-UQFN (4x4 mm) | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same |
| Core | PIC16 enhanced mid-range 8-bit | PIC16 enhanced mid-range 8-bit | PIC16 enhanced mid-range 8-bit | PIC16 enhanced mid-range 8-bit | PIC16 enhanced mid-range 8-bit | PIC16 enhanced mid-range 8-bit |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Program Flash | 7 KB (4K x 14) | 14 KB (8K x 14) | 28 KB (16K x 14) | 28 KB (16K x 14) | 28 KB (16K x 14) | 7 KB (4K x 14) |
| SRAM | 512 bytes | 1 KB | 2 KB | 2 KB | 2 KB | 512 bytes |
| I/O Pins | 25 | 25 | 25 | 25 | 25 | 25 |
| Functional Safety (FuSa) | Yes | Yes | Yes | Yes | Yes | No |
| Operating Temperature | -40C to +125C (E) | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
Key Differentiators
- Functional Safety (FuSa) classification out of the box (vs PIC16F15344-E/MV)
- 256-byte on-chip EEPROM for parameter storage (vs PIC16F18855-E/MV)
- Core Independent Peripherals reduce CPU wake time (vs PIC16F18876-E/MV)
- Smallest Flash in the 28-UQFN pin-compatible family (vs PIC16F18877-E/MV)
Design Notes
The PIC16F18854-E/MV supports a wide 1.8 V to 5.5 V supply range, allowing direct connection to single-cell Li-coin, 2xAA, or 3.3 V system rails. Place a 100 nF decoupling capacitor as close as possible to each VDD/VSS pin pair (pin 8 plus the exposed pad on pin 27/28), and add a bulk 4.7 uF ceramic near the MCU. For battery-powered designs, switch to SLEEP via the XLP modes and use the Windowed Watchdog Timer with a long timeout to minimize active current draw.
Solder the exposed thermal pad (pins 27/28) to a continuous ground copper pour on the top layer with at least 8 thermal vias to the inner/ground plane. The UQFN-28 4x4 mm package relies on the pad for both electrical ground and heat dissipation - skipping it risks latch-up and reduces thermal performance at high CPU loads. Keep analog traces (ADC inputs, VREF) short and away from PWM outputs to avoid digital crosstalk.
Route the external crystal or resonator traces (RA6/RA7) short and symmetric with a ground guard ring to maintain stable oscillator start-up. For I2C buses above 400 kHz, add 4.7 kohm pull-ups on SDA/SCL, and for SPI above 8 MHz, keep trace lengths matched to within 5 mm to avoid clock-data skew. When using ADC channels for sensor measurement, average 16 or more samples to suppress mains-frequency noise and improve effective resolution.
Do not enable the ADC without first setting the corresponding TRIS bit to input mode - leaving TRIS as output prevents the channel from being measured. The MSSP peripheral must be configured for SPI vs I2C before the baud-rate generator is enabled, otherwise the SDA pin can be locked low and block the bus. Finally, erase-then-write Flash pages in 32-word blocks per the family data sheet; writing partial pages corrupts the row latch.
Compliance Information
RoHS and REACH compliance per Microchip product page; AEC-Q100 is not applicable for the standard F18854 line (use the -Q1 suffix variant for automotive). Lead-free terminations standard.
