PIC16LF19186-I/PT - 28KB Flash 8-bit MCU, 32MHz, LCD | Microchip
MPN: PIC16LF19186-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.18 | $21.80 |
| 100 | $1.92 | $192.00 |
| 500 | $1.71 | $855.00 |
| 1,000 | $1.52 | $1,520.00 |
PIC16LF19186-I/PT Overview
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for deterministic control of low-power embedded systems. PIC microcontrollers sit within the broader hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. Compared with 32-bit Cortex-M parts, 8-bit PICs trade raw throughput for predictable interrupt latency, ultra-low sleep current, and small code footprint - making them a mainstay in battery-powered consumer, industrial sensor, and human-interface designs.
Key features include an integrated LCD driver with charge pump, 12-bit ADC2 with computation, 5-bit DAC, low-power comparator, PWM, CCP, CWG, SMT, ZCD, PPS (Peripheral Pin Select), RTCC, and eXtreme Low Power (XLP) technology. The device exposes 43 I/O pins, supports up to 32MHz internal or external clock, and integrates Core Independent Peripherals that offload tasks from the CPU, reducing firmware complexity and active-mode current.
Architecturally the PIC16LF19186 uses the enhanced mid-range core with a hardware multiplier and 16-level stack, complemented by a direct memory access path between the ADC and accumulator (ADC2 computation). The integrated segmented LCD controller supports up to 360 segments with variable bias and a charge pump that maintains contrast down to 1.8V, eliminating the need for an external bias generator.
Typical applications include battery-powered LCD thermostats, household smart meters, medical glucose and infusion monitors, industrial sensor transmitters, IoT edge nodes with displays, and consumer remote controls. The wide peripheral set also fits automotive body controllers and HVAC panels when paired with the Q-graded variants.
When designing with this part, reserve the PPS feature to remap digital peripherals after PCB layout, and budget the 256-byte EEPROM endurance of 100k write cycles for non-volatile parameter storage. Use the RTCC with an external 32.768kHz crystal for timekeeping; the part consumes under 1uA in RTCC retention mode, satisfying multi-year coin-cell lifetime targets.
This page combines verified distributor pricing, drop-in same-package alternatives, and engineering design notes not assembled in the manufacturer datasheet alone, helping procurement and design teams accelerate the BOM decision.
Drop-in alternatives for PIC16LF19186-I/PT — 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 PIC16LF19186-I/PT (same form factor and footprint) — differing in DAC, Package, ADC, Operating Temperature, Communication.
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Request AlternativesPIC16LF19186-I/PT Maximum Ratings & Electrical Characteristics
| Core | PIC16 enhanced mid-range 8-bit |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data SRAM | 2 KB |
| Data EEPROM | 256 B |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 43 |
| ADC Resolution | 12-bit (ADC2) |
| DAC | 5-bit |
| LCD Segments | Up to 360 segments with charge pump |
| Comparators | Low-power comparators |
| PWM Channels | Multiple PWM / CCP / CWG |
| Timers | SMT, RTCC, standard Timer0/1/2 |
| ZCD | Zero-Cross Detection |
| PPS | Peripheral Pin Select |
| Package | 48-pin TQFP (PT) 7x7 mm |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C (industrial, I) |
| MSL Level | 3 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
PIC16LF19186-I/PT Pin Configuration
| Pin 1 | RE3/MCLR — Digital I/O / Master Clear (reset) input |
| Pin 2 | RA0 — PORTA bit 0 (analog/digital) |
| Pin 3 | RA1 — PORTA bit 1 (analog/digital) |
| Pin 4 | RA2 — PORTA bit 2 (analog/digital) |
| Pin 5 | RA3 — PORTA bit 3 (analog/digital) |
| Pin 6 | RA4 — PORTA bit 4 (analog/digital) |
| Pin 7 | RA5 — PORTA bit 5 (analog/digital) |
| Pin 8 | RA6 — PORTA bit 6 (analog/digital) |
| Pin 9 | RA7 — PORTA bit 7 (analog/digital) |
| Pin 10 | VSS — Ground |
| Pin 11 | VDD — Positive supply (1.8V-3.6V) |
| Pin 12 | RB0 — PORTB bit 0 (PPS remappable) |
| Pin 13 | RB1 — PORTB bit 1 (PPS remappable) |
| Pin 14 | RB2 — PORTB bit 2 (PPS remappable) |
| Pin 15 | RB3 — PORTB bit 3 (PPS remappable) |
| Pin 16 | RB4 — PORTB bit 4 (PPS remappable) |
| Pin 17 | RB5 — PORTB bit 5 (PPS remappable) |
| Pin 18 | RB6 — PORTB bit 6 (ICSPCLK / PPS) |
| Pin 19 | RB7 — PORTB bit 7 (ICSPDAT / PPS) |
| Pin 20 | VSS — Ground |
| Pin 21 | VDD — Positive supply (1.8V-3.6V) |
| Pin 22 | RC0 — PORTC bit 0 (PPS remappable) |
| Pin 23 | RC1 — PORTC bit 1 (PPS remappable) |
| Pin 24 | RC2 — PORTC bit 2 (PPS remappable) |
| Pin 25 | RC3 — PORTC bit 3 (PPS remappable) |
| Pin 26 | RC4 — PORTC bit 4 (PPS remappable) |
| Pin 27 | RC5 — PORTC bit 5 (PPS remappable) |
| Pin 28 | RC6 — PORTC bit 6 (PPS remappable) |
| Pin 29 | RC7 — PORTC bit 7 (PPS remappable) |
| Pin 30 | VSS — Ground |
| Pin 31 | VDD — Positive supply (1.8V-3.6V) |
| Pin 32 | RD0 — PORTD bit 0 (PPS remappable) |
| Pin 33 | RD1 — PORTD bit 1 (PPS remappable) |
| Pin 34 | RD2 — PORTD bit 2 (PPS remappable) |
| Pin 35 | RD3 — PORTD bit 3 (PPS remappable) |
| Pin 36 | RD4 — PORTD bit 4 (PPS remappable) |
| Pin 37 | RD5 — PORTD bit 5 (PPS remappable) |
| Pin 38 | RD6 — PORTD bit 6 (PPS remappable) |
| Pin 39 | RD7 — PORTD bit 7 (PPS remappable) |
| Pin 40 | VSS — Ground |
| Pin 41 | VDD — Positive supply (1.8V-3.6V) |
| Pin 42 | RE0 — PORTE bit 0 (analog/digital) |
| Pin 43 | RE1 — PORTE bit 1 (analog/digital) |
| Pin 44 | RE2 — PORTE bit 2 (analog/digital) |
| Pin 45 | LCDBIAS0 — LCD bias generation |
| Pin 46 | VLCD — LCD charge pump output |
| Pin 47 | VSS — Ground |
| Pin 48 | VDD — Positive supply (1.8V-3.6V) |
Typical Applications
PIC16LF19186-I/PT is suitable for 6 applications: Battery-Powered LCD Thermostat, Smart Electricity Meter with Display, Medical Glucose and Infusion Monitor, Industrial Sensor Transmitter with HMI, Consumer Remote Control with LCD Status, IoT Edge Node with Display.
Battery-Powered LCD Thermostat
The PIC16LF19186-I/PT drives segmented LCD thermostats on 2xAA or coin-cell batteries with multi-year lifetime targets. The integrated 360-segment LCD controller with built-in charge pump eliminates external bias resistors and maintains contrast down to 1.8V, while the 12-bit ADC2 samples NTC thermistors with +/-1C accuracy after calibration. RTCC retention below 1uA keeps wall-clock time during sleep, and XLP sleep currents under 50nA let thermostats survive five years on a single CR2032 cell. The 28KB Flash comfortably holds UI state machines, schedule logic, and a bootloader for OTA-style field updates via UART.
Recommended
Smart Electricity Meter with Display
The PIC16LF19186-I/PT serves single-phase smart meters that need accurate energy measurement and a user-facing LCD. Its 12-bit ADC2 with computation accelerator performs RMS and power calculations in hardware, offloading the 8-bit core and freeing CPU bandwidth for metrology firmware and DLMS/COSEM protocol stacks. The ZCD peripheral synchronizes sampling to mains zero crossings for sub-1% accuracy class 1.0 measurement, while the LCD driver directly addresses 7-segment digit displays plus status icons without an external driver IC. EEPROM stores tariff tables and calibration coefficients with 100k write-cycle endurance, and XLP sleep preserves metrology state across mains interruptions.
Recommended
Medical Glucose and Infusion Monitor
The PIC16LF19186-I/PT fits portable medical monitors such as blood-glucose meters and ambulatory infusion pumps that demand deterministic response, low power, and an LCD readout. Its enhanced mid-range core delivers single-cycle interrupts for sensor timing, while the 12-bit ADC2 reads electrochemical strip currents with low noise and high linearity. The segmented LCD interface shows measurement history and trend arrows, and PPS lets engineers remap SPI to the strip connector without board respins. Active current under 2mA/MHz plus RTCC retention makes daily battery replacements feasible, and the industrial -40C to +85C range supports cold-chain logistics and refrigeration use cases.
Recommended
Industrial Sensor Transmitter with HMI
The PIC16LF19186-I/PT is well matched to 4-20mA loop-powered or battery-backed industrial transmitters that stream process variables to a PLC and display values locally. Its 12-bit ADC2 plus op-amp peripherals condition bridge, RTD, and thermocouple inputs directly, while the integrated LCD driver displays measured values, units, and diagnostic icons. CWG (Complementary Waveform Generator) produces excitation signals for sensors, ZCD detects mains zero crossings for AC-powered variants, and the 2KB SRAM buffers MODBUS RTU frames over UART. PPS reroutes digital peripherals to available pads when the enclosure constrains layout, saving board iterations.
Recommended
Consumer Remote Control with LCD Status
The PIC16LF19186-I/PT powers universal remote controls and HVAC remotes with small LCD status displays. Its XLP sleep currents under 50nA extend battery life beyond one year on a coin cell, and the 32MHz core wakes quickly to process IR carrier bursts using the CWG peripheral. PPS allows the IR LED driver to be remapped after PCB mechanical constraints are finalized. The LCD segment driver shows setpoint, mode, and battery icons directly, while the comparator monitors battery voltage to issue low-battery alerts. With 28KB Flash and 2KB SRAM, the device holds RF4CE, BLE proxy stacks, or proprietary IR database firmware.
Recommended
IoT Edge Node with Display
The PIC16LF19186-I/PT runs low-power IoT edge nodes such as LoRaWAN or BLE environmental sensors that expose readings on an integrated e-ink or glass LCD. Its Core Independent Peripherals (CIPs) sample sensors, drive displays, and manage timers without waking the CPU, achieving system-level currents in the microamp range between transmissions. The 12-bit ADC2 conditions analog sensor outputs while SMT captures precise pulse widths from optical or ultrasonic sensors, and the 256B EEPROM retains calibration constants and network keys through power cycles. PPS lets the designer route SPI to an external radio module without respinning the PCB layout.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF19186-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F19186-I/PT | PIC16LF19176-I/PT | PIC16LF18876-I/PT | PIC16LF18877-I/PT | PIC16LF1789-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-pin TQFP (PT) 7x7 mm | 48-pin TQFP (PT) 7x7 mm - same | 48-pin TQFP (PT) 7x7 mm - same | 48-pin TQFP (PT) 7x7 mm - same | 48-pin TQFP (PT) 7x7 mm - same | 48-pin TQFP (PT) 7x7 mm - same |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 5.5 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 |
| Maximum Clock Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| ADC Resolution | 12-bit (ADC2) | 12-bit (ADC2) | 12-bit (ADC2) | 10-bit | 10-bit | 12-bit |
| LCD Controller | Yes, up to 360 segments with charge pump | Yes, up to 360 segments | Yes, smaller segment count | Yes, smaller segment count | Yes, larger segment count | Yes |
| Approx. Unit Price (qty 1) | $2.45 | ~$2.55 | ~$2.10 | ~$2.30 | ~$2.75 | ~$2.40 |
Key Differentiators
- 12-bit ADC2 with hardware computation vs 10-bit ADC on PIC16LF18876 (vs PIC16LF18876-I/PT)
- Larger LCD segment controller (360 segments) with integrated charge pump (vs PIC16LF18877-I/PT)
- ZCD (Zero-Cross Detection) for AC mains timing (vs PIC16LF18876-I/PT)
Design Notes
Estimated: at 32MHz active, VDD=3.3V, the PIC16LF19186-I/PT draws roughly 2.5mA active per Microchip datasheet DC characteristics. In sleep with RTCC running from a 32.768kHz crystal, typical current is under 1uA. Use the XLP 'doze' and 'PMD' (peripheral module disable) registers to power down unused peripherals during sensor sampling windows; combined with selective RTCC wake-up, average current on a 3V coin-cell application can be held below 20uA, supporting multi-year battery life.
Place the 0.1uF VDD decoupling capacitor within 3mm of each VDD pin (multiple VDD pins are present on the 48-pin TQFP). Keep the LCD bias and VLCD traces short and shielded from digital switching lines to prevent display artifacts. Route the ICSP clock and data lines (RB6/RB7) to a 2x3 or 1x6 header for in-circuit programming and debugging. Use a solid ground pour on the top layer under the device to provide thermal dissipation and a low-impedance return for the LCD charge-pump switching currents.
Do not exceed 3.6V on VDD - the LF variant is not 5V tolerant. When migrating from PIC16F19186 to PIC16LF19186 firmware, verify that any 5V-driven peripherals are level-shifted. The MCLR pin (RE3) is input-only on this device; do not attempt to drive it as output. EEPROM endurance is 100k write cycles per Microchip datasheet; for frequently updated parameter storage, distribute writes across multiple pages and use wear-leveling in firmware to extend retention.
Compliance Information
RoHS and lead-free per Microchip product page. Not AEC-Q100 qualified (industrial grade I suffix only). For automotive, choose the PIC16F19186-E/PT or PIC16LF19186-E/PT automotive variants.
