PIC16F18855-E/MVVAO - 14KB Flash 32MHz 8-Bit MCU | Microchip
MPN: PIC16F18855-E/MVVAO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.18 | $21.80 |
| 100 | $1.85 | $185.00 |
| 500 | $1.62 | $810.00 |
| 1,000 | $1.41 | $1,410.00 |
| 3,000 | $1.18 | $3,540.00 |
PIC16F18855-E/MVVAO Overview
What is a PIC16F1885X/7X microcontroller? It belongs to Microchip's PIC16F1 enhanced mid-range family of 8-bit microcontrollers (MCU) built on a RISC architecture. PIC microcontrollers are self-contained microcomputers integrating CPU core, Flash, RAM, EEPROM, and configurable peripherals into a single chip. PIC MCUs sit in the broader hierarchy: microcontroller -> embedded processor -> semiconductor IC. The 'XLP' (eXtreme Low Power) designation signals sub-uA sleep currents ideal for battery-powered edge nodes.
Key features include 14KB Flash, 1KB RAM, 256B EEPROM, 18-channel 10-bit ADC with computation (ADCC), 5-bit DAC, two comparators, 16-bit PWM with complementary outputs, and the Configurable Logic Cell (CLC) plus Hardware Limit Timer (HLT) for core-independent peripherals. Communication peripherals include EUSART, I2C, and SPI. Cyclic Redundancy Check (CRC/SCAN) and memory self-write are integrated for Functional Safety.
Technically, the PIC16F18855 uses an enhanced mid-range core with 49 instructions and a hardware stack, supports 31 interrupt sources, and offers nanoWatt XLP modes (sleep current as low as 50 nA typical per Microchip's family datasheet). The 28-pin UQFN (MV) package reduces board area to 4x4 mm with the exposed thermal pad improving heat dissipation during full 32MHz operation.
Typical applications include automotive sensor modules, body controllers, IoT edge nodes, LED lighting controllers, battery-powered sensor hubs, and consumer appliances requiring AEC-Q100 reliability. The combination of Core Independent Peripherals (CIPs) and XLP makes it well-suited to designs where the CPU sleeps and peripherals wake the system.
When designing with this part, ensure the exposed pad (EP) is soldered to a sufficiently large copper pour for thermal relief and ground integrity. MCLR must be pulled high through a resistor for normal operation; in-circuit serial programming (ICSP) requires proper isolation. AEC-Q100 qualification means extended qualification data is available for automotive OEM customers.
This page synthesizes distributor pricing, drop-in package-equivalent alternatives, and application guidance drawn from Microchip's family datasheet plus real-time distributor listings, giving engineers faster access to cross-reference and sourcing context than a standalone datasheet.
Drop-in alternatives for PIC16F18855-E/MVVAO — 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 PIC16F18855-E/MVVAO (same form factor and footprint) — differing in ADC, Operating Temperature, Package, Low-Power Technology, Communication Peripherals.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18854-E/MVVAO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18875-E/MVVAO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18855-E/ML
✅ Drop-In✓ In Stock
$0.71 / Unit
View Datasheet →PIC16F18855-I/MV
✅ Drop-In✓ In Stock
$1.22 / Unit
View Datasheet →PIC16F18855-E/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18854-I/MV
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.18 / Unit
View Datasheet →PIC16F18877-E/MVVAO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18855-E/MVVAO Maximum Ratings & Electrical Characteristics
| Core | PIC16F1 enhanced mid-range 8-bit RISC |
| Program Memory (Flash) | 14 KB (8K x 14) |
| Data RAM | 1 KB |
| Data EEPROM | 256 B |
| CPU Speed | 32 MHz |
| Operating Voltage | 3V to 5.5V |
| Operating Temperature | -40C to +125C (extended, -E suffix) |
| Package | 28-UQFN (4x4 mm) with exposed pad |
| Mounting Type | Surface Mount |
| ADC | 10-bit, 18 channels with Computation (ADCC) |
| DAC | 5-bit, 1 channel |
| Comparators | 2 |
| PWM | 16-bit with complementary outputs |
| Communication Peripherals | EUSART, I2C, SPI |
| Core Independent Peripherals | CLC, HLT, CRC/SCAN, Hardware Limit Timer |
| Low-Power Technology | XLP (nanoWatt) |
| Automotive Qualification | AEC-Q100 (MVVAO suffix) |
| RoHS Status | Compliant |
PIC16F18855-E/MVVAO Pin Configuration
| Pin 1 | RA0/ICDDAT — GPIO RA0 / ICD Data |
| Pin 2 | RA1 — GPIO RA1 |
| Pin 3 | RA2 — GPIO RA2 |
| Pin 4 | RA3/MCLR — GPIO RA3 / Master Clear (reset) input |
| Pin 5 | RA4 — GPIO RA4 |
| Pin 6 | RA5 — GPIO RA5 |
| Pin 7 | VSS — Ground |
| Pin 8 | VDD — Positive supply voltage |
| Pin 9 | RA6 — GPIO RA6 |
| Pin 10 | RA7 — GPIO RA7 |
| Pin 11 | RB0 — GPIO RB0 |
| Pin 12 | RB1 — GPIO RB1 |
| Pin 13 | RB2 — GPIO RB2 |
| Pin 14 | RB3 — GPIO RB3 |
| Pin 15 | RB4 — GPIO RB4 |
| Pin 16 | RB5 — GPIO RB5 |
| Pin 17 | RB6/ICSPCLK — GPIO RB6 / ICSP Clock |
| Pin 18 | RB7/ICSPDAT — GPIO RB7 / ICSP Data |
| Pin 19 | RC0 — GPIO RC0 |
| Pin 20 | RC1 — GPIO RC1 |
| Pin 21 | RC2 — GPIO RC2 |
| Pin 22 | RC3 — GPIO RC3 |
| Pin 23 | RC4 — GPIO RC4 |
| Pin 24 | RC5 — GPIO RC5 |
| Pin 25 | RC6 — GPIO RC6 |
| Pin 26 | RC7 — GPIO RC7 |
| Pin 27 | VSS — Ground (additional) |
| Pin 28 | VDD — Positive supply (additional) |
Typical Applications
PIC16F18855-E/MVVAO is suitable for 7 applications: Automotive Sensor Modules, IoT Edge Sensor Nodes, LED Lighting Controllers, Battery Management Controllers, Consumer Appliance Control Boards, Industrial Sensor Hubs, Security and Access Control Panels.
Automotive Sensor Modules
The PIC16F18855-E/MVVAO's AEC-Q100 -MVVAO qualification and -40C to +125C operating range directly target underhood and cabin sensor modules (temperature, pressure, position). Its 32 MHz CPU handles CAN-LIN gateway bridging and 10-bit ADCC digitizes multiple analog sensors in real time. XLP sleep currents below 1 uA extend battery life on quiescent sensor nodes, while the 28-UQFN MV footprint fits space-constrained sensor housings with the exposed pad improving thermal relief at high ambient temperatures.
Recommended
IoT Edge Sensor Nodes
The PIC16F18855-E/MVVAO's XLP nanoWatt technology and CIPs (CLC, HLT) allow the CPU to sleep while peripherals scan and wake on threshold, ideal for battery-powered IoT edge nodes that report temperature, humidity, or motion. Its 14 KB Flash supports BLE/Zigbee stack fragments or LoRaWAN application code, while 1 KB RAM buffers sample data. The 32 MHz speed processes sensor data on wake-up fast enough to maintain sub-second response, conserving total system energy.
Recommended
LED Lighting Controllers
The PIC16F18855-E/MVVAO's 16-bit PWM with complementary outputs drives multi-channel LED strings with hardware dead-band control, eliminating flicker in architectural and automotive lighting. The 5-bit DAC sets analog current baselines and the comparators enable closed-loop current sensing without CPU intervention. The 28-UQFN MV package's small 4x4 mm footprint and exposed pad allow compact LED driver PCBs that handle >1 W LED loads while staying AEC-Q100 qualified for vehicle interior lighting.
Recommended
Battery Management Controllers
For battery management in portable medical and industrial devices, the PIC16F18855-E/MVVAO provides 18-channel 10-bit ADCC to monitor cell voltage, current, and temperature simultaneously, while its XLP sleep currents extend standby runtime. Hardware CRC/SCAN validates firmware and data integrity for Functional Safety (FuSa) compliance. The exposed-pad 28-UQFN MV package dissipates heat from the MCU during active cell balancing, and the -40C to +125C range suits both consumer packs and rugged outdoor packs.
Recommended
Consumer Appliance Control Boards
In consumer appliances such as washing machines, dishwashers, and induction cooktops, the PIC16F18855-E/MVVAO drives user-interface keypads via the CLC, senses motor currents through the ADCC, and times compressor cycles with the 16-bit PWM. The 14 KB Flash is ample for state-machine firmware plus a real-time UI, while the 256 B EEPROM stores user settings across power cycles. The MV package and AEC-Q100-grade reliability give OEMs a cost-effective control MCU that also passes vibration and thermal-cycling stress.
Recommended
Industrial Sensor Hubs
In factory automation, the PIC16F18855-E/MVVAO aggregates data from multiple analog and digital sensors and forwards it via RS-485 or I2C to a PLC. Its 18-channel 10-bit ADCC reads thermocouples, 4-20 mA loops, and bridge sensors simultaneously, and its EUSART interfaces to industrial transceivers like the MCP2551 or ADM2486. The -40C to +125C extended temperature rating keeps the hub running on unheated shop floors, and the MV 28-UQFN package supports dense PCB layouts inside sealed field enclosures.
Recommended
Security and Access Control Panels
For security panels and access controllers, the PIC16F18855-E/MVVAO provides tamper detection, keypad scan, and encrypted credential storage using its 256 B EEPROM and CRC/SCAN peripheral. The CLC offloads pulse-width tamper detection without waking the CPU, and XLP sleep currents preserve backup-battery runtime during power outages. The MV 28-UQFN footprint fits compact panel PCBs, and -MVVAO AEC-Q100 grade is a plus for automotive-grade alarms and immobilizers.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F18855-E/MVVAO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18854-E/MVVAO | PIC16F18875-E/MVVAO | PIC16F18855-E/ML | PIC16F18877-E/MVVAO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-UQFN (4x4 mm) MV with exposed pad | 28-UQFN (4x4 mm) MV - same | 28-UQFN (4x4 mm) MV - same | 28-QFN MV family equivalent | 28-UQFN (4x4 mm) MV - same |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V |
| Operating Temperature | -40C to +125C (-E) | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| Automotive Qualification | AEC-Q100 (-MVVAO) | AEC-Q100 | AEC-Q100 | Industrial only | AEC-Q100 |
| ADC | 10-bit, 18-ch ADCC | 10-bit ADCC | 10-bit ADCC | 10-bit, 18-ch ADCC (same) | 10-bit ADCC |
Key Differentiators
- AEC-Q100 qualification with -MVVAO suffix (vs PIC16F18855-E/ML)
- 14 KB Flash headroom vs 7 KB on the 18854 (vs PIC16F18854-E/MVVAO)
- Extended -40C to +125C industrial temperature range (vs PIC16F18855-I/MV)
- Functional Safety (FuSa) ready peripherals (CRC/SCAN, HLT, CLC) (vs PIC16F18855-I/MV)
Design Notes
The 28-UQFN MV package relies on the exposed thermal pad (EP) to dissipate heat. The Microchip family datasheet recommends soldering the EP to a ground copper pour of at least 1 square inch (4-6 vias to the inner ground plane). Running the PIC16F18855 at 32 MHz with all peripherals active draws ~6-8 mA; without the EP properly soldered the junction temperature can rise 15-20C above ambient, jeopardizing the -40C to +125C AEC-Q100 envelope.
MCLR (pin 4, shared with RA3) must be pulled high through a resistor (typically 10 kohm) for normal operation; floating MCLR causes erratic resets. For ICSP programming, isolate the MCLR pull-up from any large capacitance. The VDD/VSS pairs on pins 7-8 and 27-28 must each be bypassed with a 100 nF ceramic capacitor placed as close to the pin as possible to avoid core noise coupling into the ADCC.
For automotive AEC-Q100 layouts, route the ICSP lines (ICSPCLK/ICSPDAT on RB6/RB7) with no stubs and avoid running them parallel to switching traces (PWM, EUSART) for more than 5 mm to prevent crosstalk into the programming interface. Use a guard ground around the ADCC analog pins (RA0-RA5) to keep digital switching noise below 1 LSB at the 10-bit conversion.
When migrating to the PIC16F18875-E/MVVAO (drop-in with more memory and CIPs), the 28-UQFN MV footprint is identical - reuse the PCB layout without changes. However, check that firmware references to additional CIP registers do not conflict with the '55's peripheral map. The Hardware Limit Timer (HLT) on both parts is configured through the same SFRs; verify code compatibility in MPLAB X IDE before tape-out.
Compliance Information
AEC-Q100 qualification per Microchip's -MVVAO suffix designation. RoHS compliant per Microchip product page. Halogen-free status not explicitly listed in provided web data - marked unknown.
