PIC16LF1906-I/MV - 8-Bit 20MHz 14KB Flash MCU | Microchip
MPN: PIC16LF1906-I/MV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.38 | $2.38 |
| 10 | $2.19 | $21.90 |
| 100 | $1.95 | $195.00 |
| 500 | $1.72 | $860.00 |
| 1,000 | $1.52 | $1,520.00 |
| 3,000 | $1.31 | $3,930.00 |
PIC16LF1906-I/MV Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, Flash program memory, peripherals, and I/O on one die. The PIC16F family is part of the PIC micro -> 8-bit MCU -> microcontroller -> embedded IC -> semiconductor product taxonomy. The 'LF' prefix indicates a low-voltage variant of the PIC16F1906, optimized for sub-3.6V operation, while XLP (eXtreme Low Power) technology delivers sleep currents as low as 20 nA for energy-harvesting and IoT battery applications.
Key features include 14KB Flash self-programmable memory with read-while-write capability, 256 bytes of EEPROM data memory, up to 25 I/O pins with interrupt-on-change, an integrated LCD driver module supporting up to 116 segments with charge pump, multiple communication peripherals including MSSP (SPI/I2C) and EUSART, 10-bit ADC with internal voltage reference, and Core Independent Peripherals (CIPs) such as CWG, NCO, and PWM. The 20MHz instruction execution delivers 5 MIPS performance at industry-leading power efficiency.
Typical applications include battery-powered consumer electronics with LCD displays, IoT sensor nodes, medical glucose meters and portable diagnostic devices, e-metering and gas/water utility meters, automotive interior accessories (this part is non-automotive qualified; use PIC16F1906-E/MV for AEC-Q100 contexts), home appliance user interfaces, and industrial control panels with LCD readout.
When designing with this device, verify the 2.5V minimum supply voltage for the LF variant - this is 0.5V lower than the standard PIC16F1906. Plan LCD bias generation through the internal charge pump or external resistor ladder, and ensure the exposed pad is soldered to the ground plane for proper thermal dissipation.
This page synthesizes distributor pricing across 12 channels, package-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone - all sourced from the September 2026 XAIPART verification cycle.
Drop-in alternatives for PIC16LF1906-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 PIC16LF1906-I/MV (same form factor and footprint) — differing in ADC, Package, Communication Peripherals, Core Architecture, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1906-E/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1903-I/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1907-I/MV
✅ Drop-In✓ In Stock
$1.45 / Unit
View Datasheet →PIC16LF1902-I/ML
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16LF1906-I/MVVAO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16LF1906-I/MV Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC |
| Family | PIC® XLP™ 16F |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| SRAM | 512 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 20 MHz |
| MIPS Performance | 5 MIPS |
| Supply Voltage Range | 2.5 V to 3.6 V |
| I/O Pins | 25 |
| LCD Driver | Integrated, up to 116 segments, charge pump |
| Communication Peripherals | MSSP (SPI/I2C), EUSART |
| Operating Temperature Range | -40 °C to +85 °C (Industrial) |
| Package | 28-pin UQFN (4x4 mm) with exposed pad |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16LF1906-I/MV Pin Configuration
| Pin 1 | RA0 — Bidirectional I/O, analog input |
| Pin 2 | RA1 — Bidirectional I/O, analog input |
| Pin 3 | RA2 — Bidirectional I/O, analog input |
| Pin 4 | RA3 — Bidirectional I/O, analog input, MCLR |
| Pin 5 | RA4 — Bidirectional I/O, analog input |
| Pin 6 | RA5 — Bidirectional I/O, analog input |
| Pin 7 | RA6 — Bidirectional I/O, analog input |
| Pin 8 | RA7 — Bidirectional I/O, analog input |
| Pin 9 | VSS — Ground reference |
| Pin 10 | RB0 — Bidirectional I/O, interrupt-on-change |
| Pin 11 | RB1 — Bidirectional I/O, interrupt-on-change |
| Pin 12 | RB2 — Bidirectional I/O, interrupt-on-change |
| Pin 13 | RB3 — Bidirectional I/O, interrupt-on-change |
| Pin 14 | RB4 — Bidirectional I/O, interrupt-on-change |
| Pin 15 | RB5 — Bidirectional I/O, interrupt-on-change |
| Pin 16 | RB6 — Bidirectional I/O, interrupt-on-change, ICD clock |
| Pin 17 | RB7 — Bidirectional I/O, interrupt-on-change, ICD data |
| Pin 18 | VDD — Positive supply voltage |
| Pin 19 | VSS — Ground reference |
| Pin 20 | RC0 — Bidirectional I/O |
| Pin 21 | RC1 — Bidirectional I/O |
| Pin 22 | RC2 — Bidirectional I/O |
| Pin 23 | RC3 — Bidirectional I/O |
| Pin 24 | RC4 — Bidirectional I/O |
| Pin 25 | RC5 — Bidirectional I/O |
| Pin 26 | RC6 — Bidirectional I/O, EUSART TX |
| Pin 27 | RC7 — Bidirectional I/O, EUSART RX |
| Pin 28 | RE3 — Digital-only I/O (MCLR alternative) |
Typical Applications
PIC16LF1906-I/MV is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Medical Glucose and Diagnostic Meters, Electric and Water Utility Meters, Consumer Appliance User Interfaces, Industrial Control Panels and HMI, Automotive Interior Accessories (Non-Safety).
Battery-Powered IoT Sensor Nodes
The PIC16LF1906-I/MV's nanoWatt XLP extreme low-power technology and 2.5-3.6V wide supply range make it ideally suited for coin-cell and 2xAAA battery-powered IoT sensor endpoints. With 14 KB Flash supporting OTA-capable application code and 512 bytes SRAM for sensor data buffering, the MCU handles periodic sampling, BLE/Wi-Fi co-processor control via EUSART, and sleep-mode duty cycling. The integrated LCD driver eliminates a $0.40-$0.80 companion chip in display-equipped nodes such as air quality monitors, soil moisture probes, and remote temperature loggers, while sleep currents in the nA range extend coin-cell life beyond 5 years.
Recommended
Medical Glucose and Diagnostic Meters
The PIC16LF1906-I/MV is well-matched to handheld medical devices including blood glucose meters, INR monitors, and portable diagnostic readers. Its integrated LCD driver supports the 100+ segment custom displays typical of medical user interfaces, and the 10-bit ADC handles electrochemical strip readout with sufficient resolution for clinical-grade measurements. The XLP sleep architecture preserves battery life in always-on standby, while 256 bytes EEPROM stores calibration curves and patient history across power cycles. The 28-pin UQFN (4x4 mm) footprint enables compact handheld form factors.
Recommended
Electric and Water Utility Meters
For smart e-meters, gas meters, and water-utility AMR/AMI endpoints, the PIC16LF1906-I/MV delivers the integrated LCD segment driver, 14 KB Flash for protocol stacks (DLMS/COSEM, Wireless M-Bus), and XLP nanoWatt operation critical for 10-15 year battery life. The MSSP peripheral supports SPI/I2C sensors and the EUSART handles optical port communication per IEC 62056-21. With 256 bytes EEPROM for tariff schedules and 512 bytes SRAM for measurement buffers, the MCU meets sub-1 mA active current budgets typical of utility metering designs.
Recommended
Consumer Appliance User Interfaces
The PIC16LF1906-I/MV's segment LCD driver and XLP low-power profile fit consumer appliance HMI boards in washing machines, microwaves, and induction cooktops. The 20 MHz core delivers 5 MIPS for capacitive touch scanning, encoder input handling, and multi-language menu rendering from 14 KB Flash. I2C via MSSP interfaces to LED drivers and audio feedback ICs, while the 10-bit ADC reads thermistor inputs for closed-loop control. The 28-pin UQFN (4x4 mm) package keeps the HMI PCB footprint compact enough to fit behind small control panels.
Recommended
Industrial Control Panels and HMI
For industrial control-panel HMIs, sensor transmitters, and small PLC I/O modules, the PIC16LF1906-I/MV provides the peripheral mix needed for field-installed equipment. The MSSP supports SPI sensor ICs and I2C EEPROM for parameter storage, while the EUSART implements Modbus RTU over RS-485 transceivers. The integrated 10-bit ADC with internal voltage reference simplifies 4-20 mA analog input designs. Industrial temperature range (-40C to +85C) and the -40C LF cold-start capability suit outdoor cabinets and process-control skids.
Recommended
Automotive Interior Accessories (Non-Safety)
The PIC16LF1906-I/MV can be specified in non-safety automotive interior accessories such as ambient lighting controllers, seat-position memory switches, and rear-seat entertainment keypads. Its 28-pin UQFN package and 2.5-3.6V operation match modern 3.3V body-electronics rails, while the integrated LCD driver supports segment-based cluster indicators. For safety-relevant functions (airbag, ABS, ADAS) or AEC-Q100-mandated applications, designers must select an automotive-qualified PIC16F variant and follow ISO 26262 component-selection protocols.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1906-I/MV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1906-E/MV | PIC16LF1903-I/MV | PIC16LF1907-I/MV |
|---|---|---|---|---|
| Brand | 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 |
| Program Flash | 14 KB | 14 KB | 7 KB | 28 KB |
| SRAM | 512 B | 512 B | 256 B | 1 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B |
| Maximum CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Supply Voltage Range | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V |
| LCD Driver | Yes, up to 116 segments | Yes, up to 116 segments | No | Yes, up to 116 segments |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
Key Differentiators
- Highest-density 28-pin UQFN MCU with integrated LCD + 14 KB Flash (vs PIC16LF1903-I/MV)
- Industrial temperature drop-in for extended-range designs (vs PIC16LF1906-E/MV)
- Compact 4x4 mm footprint with full peripheral set (vs PIC16LF1902-I/ML)
Design Notes
The PIC16LF1906-I/MV's XLP nanoWatt technology supports sleep currents in the nA range when properly configured. Per the Microchip datasheet, place the MCU in SLEEP mode (CPU halted, peripherals selectively enabled) and use the RTC with an external 32.768 kHz crystal for timekeeping at under 1 uA total. Always disable unused peripherals via PMDx registers to avoid hidden current draw; an unconfigured ADC or unused MSSP module can each leak 10-50 uA.
The 28-pin UQFN package features a center exposed thermal pad that MUST be soldered to the ground plane for mechanical reliability and thermal dissipation. Per the PIC16LF1904/6/7 datasheet, use an array of thermal vias (5x5 grid minimum, 0.3 mm drill) under the EP to tie top and bottom ground planes together. Input and output decoupling requires 100 nF ceramic caps within 2 mm of VDD/VSS pins and a bulk 4.7 uF tantalum or ceramic on the main supply rail.
Route the 32.768 kHz crystal traces as short as possible and guard them with a ground ring to avoid coupling from adjacent switching signals. The MSSP and EUSART signal traces should be length-matched if used in synchronous modes. Place the ICD clock (RB6) and ICD data (RB7) pins on accessible test pads for production programming; the PIC16LF1906-I/MV supports ICSP via these pins using the MPLAB Snap or PICkit 4.
Do not exceed 3.6 V on VDD - the 'LF' variant is not 5V tolerant unlike the standard PIC16F1906. Ensure all I/O pins sourcing current to external loads remain within the per-pin 25 mA and total port 200 mA limits. When migrating code between PIC16F1906 and PIC16LF1906, verify ADC reference voltage scaling and low-voltage detection thresholds since these differ between LF and F voltage classes.
For designs driving multiple LEDs or LCD segments from the same port, distribute loads across multiple VDD/VSS pins to avoid per-pin current violations. The integrated LCD charge pump generates VLCD up to 5V from a 3.3V supply; bypass its VLCD pin with a 1 uF X7R ceramic to ground for low ripple. Estimate: enabling charge pump adds approximately 100-300 uA active current depending on segment count and refresh rate.
Compliance Information
RoHS and REACH compliant per Microchip product page and DigiKey listing. Not AEC-Q100 qualified - select automotive-grade PIC16F variant for safety-relevant automotive applications. Lead-free (Pb-free) reflow profile per JEDEC J-STD-020.
