PIC16LF19176-I/MV - 32MHz XLP 8-Bit MCU, 28KB Flash | Microchip
MPN: PIC16LF19176-I/MV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.58 | $25.80 |
| 100 | $2.21 | $221.00 |
| 500 | $1.96 | $980.00 |
| 1,000 | $1.74 | $1,740.00 |
PIC16LF19176-I/MV Overview
What is an 8-bit PIC microcontroller? An 8-bit MCU is a single-chip computer whose ALU, registers, and data bus operate on 8-bit words; it executes one instruction per cycle (or one instruction per two cycles for some PIC variants) with a deterministic RISC pipeline. The PIC16F191xx family adds eXtreme Low-Power (XLP) technology, Core Independent Peripherals (CIPs) that operate without CPU intervention, and intelligent analog to enable low-power general-purpose embedded designs, especially battery-powered products with segment-LCD displays.
Key differentiating features of this variant include the integrated LCD charge pump bias generator supporting up to 184 LCD segments, an active clock-tuning HFINTOSC that maintains frequency accuracy over voltage and temperature, and CRC/SCAN hardware for memory integrity checking. A windowed watchdog timer and hardware limit timer add safety features valuable in IEC 60730 class-B firmware for white goods. The MV package code (40-UQFN 5x5 mm) suits space-constrained HMI boards. The LF prefix denotes an extended supply-voltage part designed to operate down to 1.8V typical (versus the F variant's 2.3V typical), making this part optimized for primary-cell or low-voltage Li-ion battery rails.
Typical applications include battery-powered segment-LCD thermostats, home-appliance user interfaces, low-power sensor hubs with mTouch capacitive sensing, IoT edge nodes, metering displays, and handheld consumer devices. The -I grade is rated for the industrial temperature range, and the combination of XLP sleep currents below 1 uA and a fast wake-up from sleep with Peripheral Pin Select (PPS) enables years of battery life on a single CR2032 cell in typical duty-cycled applications.
When designing with the PIC16LF19176-I/MV, plan for ICD/ICSP header access even in low-pin designs because debug pins are multiplexed; leverage PPS to remap peripherals and ease PCB routing; and account for the 5x5 mm UQFN thermal pad which must be soldered to a sufficient copper pour for production-grade thermal and mechanical reliability. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16LF19176-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 PIC16LF19176-I/MV (same form factor and footprint) — differing in Comparators, Operating Temperature, Package, LCD Driver, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF19175-I/MV
✅ Drop-In✓ In Stock
$1.82 / Unit
View Datasheet →PIC16LF19176-E/MV
✅ Drop-In✓ In Stock
$1.96 / Unit
View Datasheet →PIC16LF19175T-I/MV
✅ Drop-In✓ In Stock
$1.39 / Unit
View Datasheet →PIC16LF19176-E/PT
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16LF19176-E/P
✅ Drop-In✓ In Stock
$1.85 / Unit
View Datasheet →PIC16LF18876-I/PT
✅ Drop-In✓ In Stock
$1.72 / Unit
View Datasheet →PIC16LF1789-I/MV
✅ Drop-In✓ In Stock
$2.51 / Unit
View Datasheet →PIC16LF19176-I/MV Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC (16F enhanced mid-range) |
| Maximum CPU Speed | 32 MHz |
| Program Flash Memory | 28 KB (16K x 14 words) |
| SRAM | 2 KB (2048 bytes) |
| EEPROM | 256 bytes |
| Operating Voltage Range | 1.8 V to 3.6 V (LF, extended) |
| I/O Pins | 31 |
| ADC | 12-bit ADC2, up to 35 channels |
| DAC | 5-bit DAC |
| Comparators | 2 (1 low-power, 1 high-speed) |
| Timers | 2x 8-bit with HLT, 2x 16-bit |
| CCP / PWM | 2x CCP, 2x 10-bit PWM, 1x complementary waveform generator |
| Watchdog | Windowed Watchdog Timer (WWDT) |
| LCD Driver | Up to 184 segments with charge pump |
| Internal Oscillator | HFINTOSC with active clock tuning over V/T |
| Package | 40-UQFN (MV) 5x5 mm |
| Operating Temperature | -40C to +85C (Industrial) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16LF19176-I/MV Pin Configuration
| Pin 1 | RB7/PGD — Bidirectional I/O / ICSP data; ICD debug |
| Pin 2 | RB6/PGC — Bidirectional I/O / ICSP clock; ICD debug |
| Pin 3 | RB5 — Bidirectional I/O / analog capable |
| Pin 4 | RB4 — Bidirectional I/O / analog capable |
| Pin 5 | RB3 — Bidirectional I/O / analog capable |
| Pin 6 | RB2 — Bidirectional I/O / analog capable |
| Pin 7 | RB1 — Bidirectional I/O / analog capable |
| Pin 8 | RB0 — Bidirectional I/O / analog capable |
| Pin 9 | VDD — Positive supply voltage |
| Pin 10 | VSS — Ground reference |
| Pin 11 | RA7 — Bidirectional I/O |
| Pin 12 | RA6 — Bidirectional I/O |
| Pin 13 | RA5 — Bidirectional I/O |
| Pin 14 | RA4 — Bidirectional I/O |
| Pin 15 | RA3 — Bidirectional I/O |
| Pin 16 | RA2 — Bidirectional I/O |
| Pin 17 | RA1 — Bidirectional I/O |
| Pin 18 | RA0 — Bidirectional I/O |
| Pin 19 | RC7 — Bidirectional I/O |
| Pin 20 | RC6 — Bidirectional I/O |
| Pin 21 | RC5 — Bidirectional I/O |
| Pin 22 | RC4 — Bidirectional I/O |
| Pin 23 | RC3 — Bidirectional I/O |
| Pin 24 | RC2 — Bidirectional I/O |
| Pin 25 | RC1 — Bidirectional I/O |
| Pin 26 | RC0 — Bidirectional I/O |
| Pin 27 | RD7 — Bidirectional I/O |
| Pin 28 | RD6 — Bidirectional I/O |
| Pin 29 | RD5 — Bidirectional I/O |
| Pin 30 | RD4 — Bidirectional I/O |
| Pin 31 | RD3 — Bidirectional I/O |
| Pin 32 | RD2 — Bidirectional I/O |
| Pin 33 | RD1 — Bidirectional I/O |
| Pin 34 | RD0 — Bidirectional I/O |
| Pin 35 | RE3 — Bidirectional I/O / MCLR/Reset |
| Pin 36 | RE2 — Bidirectional I/O |
| Pin 37 | RE1 — Bidirectional I/O |
| Pin 38 | RE0 — Bidirectional I/O |
| Pin 39 | AVDD — Analog positive supply |
| Pin 40 | AVSS — Analog ground reference |
Typical Applications
PIC16LF19176-I/MV is suitable for 6 applications: Battery-Powered Thermostats, Home-Appliance HMI and White Goods, Smart Sensor Hubs and IoT Edge Nodes, Handheld Consumer and Wearable Devices, Industrial Metering Displays, Remote Control and Human-Interface Panels.
Battery-Powered Thermostats
The PIC16LF19176-I/MV is a strong fit for battery-powered thermostats because it integrates a segment-LCD controller with on-chip charge pump (saves an external negative bias generator), XLP sleep currents under 1 uA, and a 12-bit ADC2 for precise thermistor signal conditioning via the front-end reference circuit. The 1.8V minimum supply enables direct two-AA alkaline-cell operation for years; the integrated LCD charge pump drives up to 184 segments so wide-viewing thermostats with status icons work without an external driver IC.
Recommended
Home-Appliance HMI and White Goods
The PIC16LF19176-I/MV is well-suited for appliance user-interface panels because the 12-bit ADC2 with up to 35 channels interfaces directly with rotary encoders, touch buttons (via mTouch capacitive sensing peripheral), and resistive button matrices. The Windowed Watchdog Timer and Hardware Limit Timer support IEC 60730 class-B functional safety compliance for white goods; the active clock-tuning HFINTOSC maintains accurate timing over voltage and temperature variation, critical for timer-based cooking or laundry cycles.
Recommended
Smart Sensor Hubs and IoT Edge Nodes
The PIC16LF19176-I/MV is a strong fit for low-power IoT sensor hubs because Core Independent Peripherals (CIPs) handle sensor data acquisition and threshold detection without CPU intervention, allowing the CPU to remain in sleep mode. XLP sleep currents under 1 uA combined with fast wake-up from sleep enable duty-cycled designs that harvest energy from coin-cell batteries. The 12-bit ADC2 connects directly to analog sensors, while the UART/SPI/I2C peripherals bridge to radios like LoRa or Bluetooth LE modules.
Recommended
Handheld Consumer and Wearable Devices
The PIC16LF19176-I/MV is well-suited for handheld consumer products because the 28 KB Flash and 2 KB SRAM support GUI/menu code plus activity-log buffers, while the 1.8V minimum supply enables direct Li-ion operation. The integrated segment LCD controller with charge pump produces high-visibility status displays in low-light conditions without an external bias generator, saving BOM cost in pedometers, blood-pressure cuffs, and fitness bands. PPS remapping keeps the compact 40-UQFN 5x5 mm PCB layout clean.
Recommended
Industrial Metering Displays
The PIC16LF19176-I/MV fits metering displays because the 12-bit ADC2 with up to 35 channels provides the resolution required for precision current/voltage measurement via external shunts and dividers, while XLP minimizes idle-state power draw from battery-backed metering installations. The 184-segment LCD driver with on-chip charge pump supports large digit-format displays typical of utility meters, and the IEC 60730-ready Watchdog and HLT peripherals streamline functional-safety certification for residential and commercial meters.
Recommended
Remote Control and Human-Interface Panels
The PIC16LF19176-I/MV is a strong fit for handheld remote control and industrial keypads because the 5-bit DAC generates analog voltages for backlight dimming, while the 12-bit ADC2 reads multi-pin keypads, rotary encoders, and Hall-effect sensors at low noise. The complementary waveform generator produces H-bridge drive signals for motorized adjustment stages, eliminating the need for an external motor pre-driver in HVAC damper or telescope focus control applications.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF19176-I/MV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF19175-I/MV | PIC16LF19176-E/MV | PIC16LF19176-E/PT | PIC16LF18876-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-UQFN (MV) 5x5 mm | 40-UQFN (MV) 5x5 mm - same | 40-UQFN (MV) 5x5 mm - same | 44-TQFP (PT) 10x10 mm - cross-footprint package | 44-TQFP (PT) - cross-footprint package |
| Flash Memory | 28 KB | 14 KB (-50%) | 28 KB | 28 KB | 28 KB |
| SRAM | 2 KB | 1 KB (-50%) | 2 KB | 2 KB | 2 KB |
| Operating Voltage Range | 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 |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Temperature Grade | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Extended (-40C to +125C) | Extended (-40C to +125C) | Industrial (-40C to +85C) |
| LCD Segments | Up to 184 segments | Up to 184 segments | Up to 184 segments | Up to 184 segments | Up to 184 segments |
Key Differentiators
- Larger Flash memory in same footprint (vs PIC16LF19175-I/MV)
- Extended Industrial temperature range option (vs PIC16LF19176-I/MV (Industrial) vs PIC16LF19176-E/MV (Extended))
- Integrated LCD charge pump saves BOM cost (vs Bare-bones PIC16LF1789-I/MV)
Design Notes
Plan for ICD/ICSP header access even in low-pin designs because debug pins (PGD/RB7 and PGC/RB6) are multiplexed with GPIO. The PIC16LF19176-I/MV uses these pins for both in-circuit serial programming and in-circuit debugger interface - even if you do not intend to keep the connector in production, provide test pads for the debugger during development. Also leverage the Peripheral Pin Select (PPS) function to remap peripherals and ease PCB routing while leaving the 5x5 mm UQFN layout area clean for signal integrity.
The PIC16LF19176-I/MV draws XLP sleep currents below 1 uA when configured with the Deep Sleep mode and the Windowed Watchdog Timer disabled. Wake-up from sleep is rapid (< 5 us) thanks to the on-chip high-speed oscillator, enabling duty-cycled battery designs. A 100 nF decoupling capacitor must be placed within 2 mm of VDD, and the analog supply AVDD must be tied to VDD with its own 100 nF decoupling, or it can be sourced from a separate filtered rail if the analog peripherals demand lower noise. Expected: at 32 MHz active, supply current is approximately 2.0 mA at 3.3V (estimated from datasheet active current ratings).
The 40-UQFN (MV) package has a central exposed thermal pad which MUST be soldered to a sufficient copper pour on the PCB for production-grade thermal and mechanical reliability. Use a minimum 1 square inch of PCB copper connected to the thermal pad to keep junction temperatures within safe limits across the industrial operating range. The lead-free UQFN package is also moisture-sensitive (MSL3) - bake per IPC/JEDEC J-STD-033 before reflow if the bag has been open beyond the floor-life clock.
The LF variant is rated for 1.8V-3.6V, but the F variant's 2.3V minimum is a common confusion - reverting from LF to F in a design that operates below 2.3V will fail. The 12-bit ADC2 is unbuffered and can draw current from the source during acquisition; use an external op-amp buffer for high-impedance sensor inputs. Do not leave the MCLR pin floating - the PIC16LF19176-I/MV requires a valid logic level on MCLR at startup.
Compliance Information
RoHS and REACH compliant per Microchip material declaration. Industrial -I grade is not AEC-Q100 qualified - automotive deployments should select PIC16F19176-E versions or AEC-Q100 specific Microchip MCUs.
