PIC16LF19186T-I/MV - 28KB Flash 8-bit MCU with LCD | Microchip
MPN: PIC16LF19186T-I/MV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 10 | $2.66 | $26.60 |
| 100 | $2.37 | $237.00 |
| 500 | $2.13 | $1,065.00 |
| 1,000 | $1.89 | $1,890.00 |
PIC16LF19186T-I/MV Overview
An 8-bit microcontroller (MCU) is a programmable processor with an 8-bit data path, on-chip Flash program memory, RAM, peripherals, and I/O in a single IC. Within the broader taxonomy, it sits under microcontroller -> embedded MCU -> microprocessor -> semiconductor. The 'PIC' core is Microchip's proprietary Harvard RISC architecture; the 'LF' suffix indicates the low-voltage / low-power XLP family optimized for battery-powered designs. Compared with 32-bit Cortex-M0 MCUs, the PIC16L line targets simpler, deterministic, low-power applications where code density, peripheral integration, and BOM cost matter more than raw MIPS.
Key features include 32 MHz operation from 1.8V to 3.6V, 28 KB self-programmable Flash with device ID/protect, 2 KB SRAM, 256 B EEPROM, an integrated LCD driver for up to 288 segments, a 12-bit ADC with charge pump, and the XLP eXtreme Low-Power technology with sleep currents in the nanoampere range. Core Independent Peripherals (CIPs) such as CWG, SMT, ZCD, and configurable logic cells allow functions to run without CPU intervention, reducing firmware burden and active current.
Architecturally the device pairs a 14-bit instruction-word PIC core with a wide peripheral set including Peripheral Pin Select (PPS) for flexible I/O mapping, RTCC for real-time clocking, and PWM/CCP for motor and lighting control. The integrated charge pump enables LCD operation below 3V without external boost components.
Typical applications include battery-powered LCD thermostats and utility meters, IoT sensor nodes with segment displays, low-power medical monitors (e.g. glucose meters), consumer white goods with LCD UI, and industrial HMI panels. The wide peripheral mix suits designs needing analog sensing, timekeeping, and display drive in a single chip.
When designing, verify that the chosen UQFN-48 footprint (0.4 mm pitch, 6x6 mm body with exposed pad) matches your PCB land pattern; the 'MV' suffix specifically designates UQFN, not the TQFP or QFN alternatives in this family. Plan for ICD/ICSP programming headers and review MPLAB X IDE compatibility for XC8 compiler support.
This page synthesizes distributor pricing, drop-in same-package alternatives from the Site MPN list, and practical design notes not aggregated in the manufacturer datasheet.
Drop-in alternatives for PIC16LF19186T-I/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 PIC16LF19186T-I/MV (same form factor and footprint) — differing in Package, ADC, Comparators, Operating Temperature, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF19176T-I/MV
✅ Drop-In✓ In Stock
$1.31 / Unit
View Datasheet →PIC16LF19175T-I/MV
✅ Drop-In✓ In Stock
$1.39 / Unit
View Datasheet →PIC16LF19156-I/MV
✅ Drop-In✓ In Stock
$0.86 / Unit
View Datasheet →PIC16LF19156T-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.04 / Unit
View Datasheet →PIC16LF18876-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.72 / Unit
View Datasheet →PIC16LF18446-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.1 / Unit
View Datasheet →PIC16LF19186T-I/MV Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit Harvard RISC |
| CPU Speed | 32 MHz (8 MIPS) |
| Program Flash | 28 KB (16K x 14 words) |
| SRAM | 2 KB |
| EEPROM | 256 B |
| Operating Voltage | 1.8 V to 3.6 V (LF variant) |
| Package | 48-UQFN (6x6 mm) with exposed pad |
| LCD Driver | Integrated, up to 288 segments (per family) |
| ADC | 12-bit ADC2 with charge pump |
| DAC | 5-bit DAC |
| Comparators | Low-power comparators (per family) |
| Timers/PWM | PWM, CCP, CWG, SMT, ZCD, RTCC |
| Peripheral Pin Select | Yes (PPS) |
| Core Independent Peripherals | CWG, SMT, ZCD, configurable logic |
| XLP Low Power | eXtreme Low-Power technology |
| Temperature Grade | -40C to +85C (Industrial, 'I' suffix) |
| Programming | ICSP / ICD via MPLAB X |
| RoHS Status | Compliant |
PIC16LF19186T-I/MV Pin Configuration
| Pin 1 | RA0 — Digital I/O / analog input / segment driver (per datasheet) |
| Pin 2 | RA1 — Digital I/O / analog input / segment driver |
| Pin 3 | RA2 — Digital I/O / analog input / segment driver |
| Pin 4 | RA3 — Digital I/O / analog input / segment driver |
| Pin 5 | RA4 — Digital I/O / analog input / segment driver |
| Pin 6 | RA5 — Digital I/O / analog input / segment driver |
| Pin 7 | RA6 — Digital I/O / segment driver |
| Pin 8 | RA7 — Digital I/O / segment driver |
| Pin 9 | VSS — Ground reference |
| Pin 10 | VDD — Positive supply (1.8-3.6 V) |
| Pin 11 | RB0 — Digital I/O / segment driver / PPS |
| Pin 12 | RB1 — Digital I/O / segment driver / PPS |
| Pin 13 | RB2 — Digital I/O / segment driver / PPS |
| Pin 14 | RB3 — Digital I/O / segment driver / PPS |
| Pin 15 | RB4 — Digital I/O / segment driver / PPS |
| Pin 16 | RB5 — Digital I/O / segment driver / PPS |
| Pin 17 | RB6 — Digital I/O / ICSPCLK / segment driver |
| Pin 18 | RB7 — Digital I/O / ICSPDAT / segment driver |
| Pin 19 | RC0 — Digital I/O / segment driver / PPS |
| Pin 20 | RC1 — Digital I/O / segment driver / PPS |
| Pin 21 | RC2 — Digital I/O / segment driver / PPS |
| Pin 22 | RC3 — Digital I/O / segment driver / PPS |
| Pin 23 | RC4 — Digital I/O / segment driver / PPS |
| Pin 24 | RC5 — Digital I/O / segment driver / PPS |
| Pin 25 | RC6 — Digital I/O / segment driver / PPS |
| Pin 26 | RC7 — Digital I/O / segment driver / PPS |
| Pin 27 | RD0 — Digital I/O / segment driver / PPS |
| Pin 28 | RD1 — Digital I/O / segment driver / PPS |
| Pin 29 | RD2 — Digital I/O / segment driver / PPS |
| Pin 30 | RD3 — Digital I/O / segment driver / PPS |
| Pin 31 | RD4 — Digital I/O / segment driver / PPS |
| Pin 32 | RD5 — Digital I/O / segment driver / PPS |
| Pin 33 | RD6 — Digital I/O / segment driver / PPS |
| Pin 34 | RD7 — Digital I/O / segment driver / PPS |
| Pin 35 | RE0 — Digital I/O / segment driver / PPS |
| Pin 36 | RE1 — Digital I/O / segment driver / PPS |
| Pin 37 | RE2 — Digital I/O / segment driver / PPS |
| Pin 38 | RE3 — Digital I/O / segment driver / PPS |
| Pin 39 | AVSS — Analog ground |
| Pin 40 | AVDD — Analog positive supply |
| Pin 41 | VLCD1 — LCD bias generation node 1 |
| Pin 42 | VLCD2 — LCD bias generation node 2 |
| Pin 43 | VLCD3 — LCD bias generation node 3 |
| Pin 44 | COM0 — LCD common line 0 |
| Pin 45 | COM1 — LCD common line 1 |
| Pin 46 | COM2 — LCD common line 2 |
| Pin 47 | COM3 — LCD common line 3 |
| Pin 48 | VCAP — Core voltage regulator bypass capacitor; tie to VSS via 1uF |
| Pin EP | EP — Exposed thermal pad - must be soldered to ground plane for thermal/electrical performance |
Typical Applications
PIC16LF19186T-I/MV is suitable for 7 applications: Battery-Powered LCD Thermostat, IoT Sensor Node with Segment Display, Utility Meter / Sub-Meter Display, Consumer White Goods with LCD UI, Industrial HMI Control Panel, Portable Medical Monitoring Device, Automotive Accessory LCD Module.
Battery-Powered LCD Thermostat
The PIC16LF19186T-I/MV fits battery-powered LCD thermostats because its integrated segment LCD driver supports up to 288 segments with a built-in charge pump, eliminating external boost components and reducing BOM cost. The XLP eXtreme Low-Power technology delivers nanoamp sleep currents, so two AA alkaline cells can run the thermostat for years. The 12-bit ADC2 with charge pump digitizes thermistor or RTD outputs with 1.8-3.6 V supply headroom, and the 32 MHz PIC16 core handles UI scheduling, hysteresis, and weekly program logic comfortably. Place the chip between the battery and the LCD glass, driving SEG/COM lines directly via PPS for flexible PCB routing.
Recommended
IoT Sensor Node with Segment Display
The PIC16LF19186T-I/MV is ideal for IoT sensor nodes that include a segment LCD for local readouts of temperature, humidity, or CO2. The device's nanoamp XLP sleep current combined with RTCC timekeeping lets the node wake periodically, sample sensors, update the display, and return to sleep, achieving multi-year coin-cell life. The Peripheral Pin Select (PPS) maps UART, I2C, or SPI to any digital pin, simplifying PCB layout when adding a sub-GHz radio or BLE module. Core Independent Peripherals (CIPs) such as SMT and CWG handle pulse timing and waveform generation without waking the core, freeing CPU cycles for radio packet handling.
Recommended
Utility Meter / Sub-Meter Display
The PIC16LF19186T-I/MV drives utility meter displays (electricity, water, gas sub-meters) thanks to its segment LCD controller supporting many multiplexed segments and the integrated charge pump for low-voltage operation. The 28 KB Flash comfortably stores tariff tables, calibration constants, and metering algorithms; the 256-byte EEPROM provides non-volatile log storage for billing snapshots. The 12-bit ADC2 captures current/voltage sensing signals with charge-pump headroom, and the RTCC enables accurate time-of-use billing. The wide 1.8-3.6 V range supports lithium primary cells that last 10+ years in field deployment.
Recommended
Consumer White Goods with LCD UI
White goods such as washing machines, dishwashers, and microwave ovens benefit from the PIC16LF19186T-I/MV's integrated LCD segment driver, which directly drives 7-segment or dot-matrix displays without an external driver IC. The 32 MHz core runs motor control loops via PWM/CCP, while CWG generates complementary waveforms for triac/MOSFET drivers. The 5-bit DAC and 12-bit ADC2 interface with temperature, level, and motor current sensors. The exposed-pad UQFN-48 package dissipates heat efficiently in enclosed appliance environments operating up to +85C, and the LF variant tolerates rectified 5V rails from inexpensive AC adapters.
Recommended
Industrial HMI Control Panel
Industrial HMI panels using the PIC16LF19186T-I/MV take advantage of the segment LCD controller and XLP low-power modes to keep standby consumption minimal when the panel is idle but still display real-time process variables. The Peripheral Pin Select allows easy routing of UART, SPI, and I2C to multiple sensor interfaces, and the integrated RTCC supports timestamped event logging. The wide -40C to +85C industrial temperature range plus robust CIP peripherals (CWG, SMT, ZCD) handle noisy industrial environments with zero-crossing detection and pulse measurement. Industrial 24V rails can be stepped down with an external LDO such as MCP1755.
Recommended
Portable Medical Monitoring Device
Portable medical devices such as glucose meters, pulse oximeters, and patient wearables use the PIC16LF19186T-I/MV for its low-voltage XLP operation and integrated LCD segment driver that displays measurements directly. The 12-bit ADC2 with charge pump achieves accurate readings from electrochemical or optical sensors, and the 5-bit DAC supports sensor bias/trimming. EEPROM storage retains calibration history between battery swaps, while the RTCC timestamps each reading for clinical records. The exposed-pad UQFN-48 keeps the footprint compact for handheld form factors, and the LF variant's 1.8-3.6 V range suits single-cell Li-ion or 2x coin-cell designs.
Recommended
Automotive Accessory LCD Module
The PIC16LF19186T-I/MV fits automotive accessory LCD modules (TPMS displays, dash accessories, motorcycle indicators) thanks to its -40C to +85C industrial temperature range, robust segment LCD controller, and XLP low-power modes. The 12-bit ADC2 digitizes sensor inputs (pressure, temperature, voltage), and PWM/CCP/CWG drive backlight brightness control or simple motor loads. The exposed-pad UQFN-48 package provides thermal headroom when mounted in enclosed vehicle cabins. Note: the LF variant is not AEC-Q100 qualified - for AEC-Q100 requirements use PIC16F19186-Q1 in the same family or an AEC-Q100 sibling.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF19186T-I/MV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF19176T-I/MV | PIC16LF19175T-I/MV | PIC16LF19156-I/MV | PIC16LF18446-I/SS |
|---|---|---|---|---|---|
| Package | 48-UQFN (6x6, MV) | 48-UQFN (6x6, MV) - same | 48-UQFN (6x6, MV) - same | 48-UQFN (6x6, MV) - same | 48-UQFN family option - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash | 28 KB | 14 KB | 14 KB | 28 KB | 28 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 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 | 1.8 V to 3.6 V |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| ADC | 12-bit ADC2 w/ charge pump | 12-bit ADC2 w/ charge pump | 12-bit ADC2 w/ charge pump | 12-bit ADC1 (older) | 12-bit ADC2 |
| LCD Driver | Up to 288 segments | Up to 288 segments | Up to 288 segments | Up to 248 segments | Up to 200 segments |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
Key Differentiators
- Larger Flash for code headroom (vs PIC16LF19176T-I/MV)
- Newer ADC2 with charge pump (vs PIC16LF19156-I/MV)
- Higher segment LCD capacity (vs PIC16LF18446-I/SS)
Design Notes
The PIC16LF19186T-I/MV uses a 48-UQFN package with 0.4 mm pitch and a center exposed thermal pad (EP) that MUST be soldered to the PCB ground plane for both electrical and thermal performance. Per the Microchip PIC16(L)F19186 datasheet, the EP bond is internally connected to VSS; failure to solder the EP can lead to higher junction temperatures, erratic analog readings, and potential reliability issues. Use an array of thermal vias under the pad (0.3 mm drill, 0.5-1.0 mm pitch) to stitch the EP to inner ground planes.
Decouple VDD/AVDD with 100 nF ceramic caps placed within 3 mm of each pin pair; place a bulk 4.7-10 uF tantalum or ceramic on VDD. The VCAP pin requires a 1 uF low-ESR ceramic to VSS to stabilize the internal core voltage regulator. Estimated: at 32 MHz active and 3.3 V VDD, the device draws roughly 4 mA (per Microchip datasheet typicals); with XLP sleep the current drops to <100 nA - design for the active peak so decoupling is sized correctly.
Common pitfalls include (1) leaving the EP unsoldered, causing thermal/electrical issues; (2) configuring VLCD pins without the recommended charge-pump caps, leading to dim or unstable LCD contrast; (3) using PPS without unlocking the I/O lock sequence in firmware, which silently disables remapped peripherals; (4) exceeding 3.6 V on the LF variant, which the part cannot survive without damage - use PIC16F19186 for 5V rails. Review the family datasheet's electrical characteristics section before finalizing the BOM.
Route the ICSP lines (ICSPCLK/RB6, ICSPDAT/RB7) to a 6-pin header or test pad chain so production programming and field firmware updates are possible without rework. Per Microchip's PIC16(L)F19186 family datasheet, ICSP is supported across all VDD in the operating range. Keep analog traces (sensor inputs to ADC2, RTCC crystal) short and guarded with a ground pour; separate analog AVSS/AVDD ground returns from noisy digital grounds using a star-ground or split-plane topology at the regulator output.
For designs using the segment LCD driver, route SEG/COM lines in matched lengths where possible and avoid running them parallel to noisy PWM or switching traces. Add a 100 kohm-1 Mohm pull-up on MCLR if you want a clean reset; otherwise leave MCLR disabled via the CONFIG register for an extra GPIO. Per Microchip application note TB0876, the LCD bias network requires the datasheet-specified cap values on VLCD pins - deviations degrade contrast uniformity across temperature.
Compliance Information
RoHS and lead-free per Microchip product page. AEC-Q100 not qualified - the LF variant targets industrial/consumer; use AEC-Q100 qualified PIC16F19186-Q1 for automotive.
