PIC16F19185T-I/MV - 8-Bit XLP LCD MCU, 14KB Flash, 48-UQFN | Microchip
MPN: PIC16F19185T-I/MV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.21 | $22.10 |
| 100 | $1.96 | $196.00 |
| 500 | $1.74 | $870.00 |
| 1,000 | $1.52 | $1,520.00 |
PIC16F19185T-I/MV Overview
An MCU (microcontroller) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O onto one die. 8-bit microcontrollers like the PIC16F19185 sit at the bottom of the embedded computing hierarchy - below 16-bit DSPIC parts, 32-bit Cortex-M devices, and application processors. They are optimized for deterministic, low-power, cost-sensitive tasks such as user-interface control, sensor conditioning, and battery-driven LCD appliances, where a full RTOS is unnecessary and pin/cycle budgets matter.
Key features include Microchip's eXtreme Low-Power (XLP) technology with integrated LCD drive support, a 12-bit ADC2, a 5-bit DAC, low-power comparator (LP COMP), PWM, CCP, CWG, SMT (Signal Measurement Timer), ZCD (Zero-Cross Detect), PPS (Peripheral Pin Select), and a Real-Time Clock/Calendar (RTCC). An integrated charge pump and high-current I/O enable direct LCD backlight drive from battery sources. The 48-UQFN exposed pad package supports compact PCB layouts and improved thermal dissipation.
The architecture combines a RISC-style PIC16 core with Core Independent Peripherals (CIPs) and Intelligent Analog, allowing functions like waveform generation, signal measurement, and LCD segment drive to run without CPU intervention. PPS provides flexible pin assignments, reducing layout constraints in densely-routed designs.
Typical applications include battery-powered LCD thermostats, portable medical monitors, IoT sensor hubs with character displays, white-goods control panels, industrial HMI modules, and metering devices requiring long battery life. The wide operating voltage (2.3-5.5V) supports direct connection to 2xAA, 3xAA, or lithium battery stacks.
When designing with this MCU, ensure the exposed pad is soldered to a sufficiently large copper pour for thermal performance. The PPS feature allows most peripherals to be mapped to a wide range of I/O pins, simplifying PCB layout. For lowest power, use XLP sleep modes with RTCC wake-up.
This page synthesizes distributor pricing from DigiKey/Mouser, drop-in alternatives from Microchip's same-family portfolio, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16F19185T-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 PIC16F19185T-I/MV (same form factor and footprint) — differing in ADC, Operating Voltage Range, Package, DAC, Program Memory (Flash).
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Request AlternativesPIC16F19185T-I/MV Maximum Ratings & Electrical Characteristics
| Core | PIC16 8-bit RISC |
| Program Memory (Flash) | 14 KB (8K x 14) |
| Data SRAM | 1 KB |
| Data EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V |
| I/O Pins | 43 |
| ADC | 12-bit ADC2 |
| DAC | 5-bit DAC |
| Comparators | Low-Power Comparator (LP COMP) |
| LCD Driver | Integrated with charge pump |
| Timers/Peripherals | PWM, CCP, CWG, SMT, ZCD, RTCC, PPS |
| Operating Temperature | -40 C to +85 C (Industrial, 'I') |
| Package | 48-UQFN (6x6 mm) with Exposed Pad |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16F19185T-I/MV Pin Configuration
| Pin 1 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 2 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 3 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 4 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 5 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 6 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 7 | VDD — Positive supply voltage (2.3 V to 5.5 V) |
| Pin 8 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 9 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 10 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 11 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 12 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 13 | VSS — Ground reference |
| Pin 14 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 15 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 16 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 17 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 18 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 19 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 20 | VDD — Positive supply voltage (2.3 V to 5.5 V) |
| Pin 21 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 22 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 23 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 24 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 25 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 26 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 27 | VSS — Ground reference |
| Pin 28 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 29 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 30 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 31 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 32 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 33 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 34 | VDD — Positive supply voltage (2.3 V to 5.5 V) |
| Pin 35 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 36 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 37 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 38 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 39 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 40 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 41 | VSS — Ground reference |
| Pin 42 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 43 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 44 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 45 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 46 | ICSPCLK/ICSPDAT — In-circuit serial programming/debug clock and data (shared pins) |
| Pin 47 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
| Pin 48 | IO/SEGx — General-purpose I/O with LCD segment capability (PPS-mappable) |
Typical Applications
PIC16F19185T-I/MV is suitable for 6 applications: Battery-Powered LCD Thermostat, Portable Medical Monitor, Industrial HMI Module, Smart Sensor Hub with Display, White Goods Control Panel, Electricity Meter with LCD.
Battery-Powered LCD Thermostat
The PIC16F19185T-I/MV is well matched to battery-powered thermostat designs that require a segment LCD plus ultra-low sleep current. Its integrated LCD driver with charge pump lets the MCU bias a 4-common x 40-segment TN display directly from two AA cells without external voltage rails. The XLP sleep modes drop below 50 nA with RTCC active, supporting multi-year battery life on a thermostat that wakes once per second to update temperature and once per minute to refresh the LCD. The 32 MHz core provides enough MIPS for proportional control loops. Pair the MCU with an external NTC thermistor on the 12-bit ADC2 for accurate temperature sensing and drive the HVAC relay through a PWM/CCP channel.
Recommended
Portable Medical Monitor
For portable medical devices such as pulse oximeters, glucometers, and wearable health patches, the PIC16F19185T-I/MV's XLP technology, 12-bit ADC, and integrated LCD segment drive are decisive advantages. Sleep current below 50 nA (RTCC + WDT) preserves battery shelf life, while the 5-bit DAC and low-power comparator (LP COMP) enable front-end signal conditioning for optical or electrochemical sensors. The 43 I/O pins and PPS allow flexible sensor matrix routing. The 48-UQFN package supports compact, lightweight enclosure designs. Operating from 2.3V to 5.5V, the MCU accepts a single lithium coin cell or 2xAAA battery stack, simplifying the BOM for FDA-cleared Class II devices that demand predictable long-term behavior.
Recommended
Industrial HMI Module
The PIC16F19185T-I/MV fits industrial human-machine interface modules that combine a character LCD with keypad input and field-bus connectivity. The integrated charge-pump LCD driver eliminates the need for an external negative bias supply, reducing BOM cost and PCB area. Core Independent Peripherals (CWG, SMT, ZCD, CCP) handle zero-cross detection for triac-based outputs, frequency measurement for tachometers, and waveform generation for buzzer drivers without CPU overhead. The -40C to +85C industrial temperature rating supports factory-floor deployment. PPS allows the UART/SPI/I2C peripherals to be remapped to whichever pins are most convenient for the connector layout, simplifying EMC-compliant routing.
Recommended
Smart Sensor Hub with Display
IoT sensor hubs that present readings on a local segment LCD benefit from the PIC16F19185T-I/MV's combination of analog and digital peripherals. The 12-bit ADC2 with internal voltage reference captures multiple sensor channels, the SMT timer measures pulse-width sensor outputs, and the LP COMP triggers interrupts on threshold crossings. The RTCC with battery backup maintains wall-clock time across power cycles. The integrated LCD driver with charge pump lets the device run from a single 3V coin cell while still displaying sensor data, eliminating the need for a boost converter in the display path. PPS permits UART-based LoRa or Sub-GHz radio modules to share I/O with display segment lines.
Recommended
White Goods Control Panel
Washing machines, dishwashers, and refrigerators require a rugged 8-bit MCU with integrated LCD drive to display cycle status, time remaining, and error codes. The PIC16F19185T-I/MV's 43 I/O pins drive multiplexed keypads, rotary encoders, and triac-controlled loads. The CWG (Complementary Waveform Generator) and PWM peripherals generate the switching waveforms needed for variable-speed compressor or BLDC motor control. The 48-UQFN exposed-pad package supports the high-temperature reflow profiles typical of white-goods manufacturing. The 14KB Flash is sufficient for cycle state machines plus a UI library, and the 1KB SRAM buffers display frames without flicker.
Recommended
Electricity Meter with LCD
Single-phase and polyphase electricity meters use the PIC16F19185T-I/MV for metrology computation, LCD readout, and tamper detection. The 12-bit ADC2 samples voltage and current CT/ shunt channels simultaneously, while the SMT timer pulses-counts energy. The integrated LCD segment driver with charge pump displays kWh, voltage, and power factor directly on a TN glass without a boost regulator. The RTCC with backup battery domain maintains time-of-use tariffs through power outages. The XLP sleep currents below 50 nA preserve battery backup life across decade-long deployments. PPS allows the UART/IR interface pins to be routed to convenient PCB positions for optical port assemblies.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F19185T-I/MV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F19185-I/MV | PIC16F19185T-E/MV | PIC16F19186T-I/MV | PIC16F19195T-I/MV | PIC16F19175T-I/MV | PIC16F18876T-I/MV |
|---|---|---|---|---|---|---|---|
| Package | 48-UQFN (6x6 mm) | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 14 KB | 14 KB | 14 KB | 28 KB | 56 KB | 28 KB | 28 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 2 KB | 4 KB | 2 KB | 2 KB |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| LCD Driver / Charge Pump | Yes | Yes | Yes | Yes | Yes | Yes | No |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Key Differentiators
- Integrated LCD charge pump in 48-UQFN package (vs PIC16F18876T-I/MV)
- 14KB Flash + 1KB SRAM in the same die as 28KB/56KB siblings (vs PIC16F19186T-I/MV)
- Industrial -40C to +85C temperature grade at lower cost (vs PIC16F19185T-E/MV)
Design Notes
The PIC16F19185T-I/MV's XLP sleep currents (below 50 nA with RTCC running) make it ideal for battery-powered applications. To achieve the lowest sleep current, disable all unused peripherals in the PMD register, set all unused I/O to output-low, and configure the ADC2, DAC, and comparators to off states. Use the RTCC with an external 32.768 kHz crystal as the periodic wake-up source rather than a software loop, so the CPU can stay in deep sleep between events. For battery backup of the RTCC, connect VBAT to a separate coin cell; the MCU's battery-switchover logic preserves timekeeping across main-power loss.
The 48-UQFN package has an exposed thermal pad on its underside that MUST be soldered to a copper pour of at least 25 mm^2 for rated thermal performance. Without proper pad soldering, junction temperature can rise 30-40 C above the no-pad case at full 32 MHz operation. Recommended footprint: a single 4.5 mm x 4.5 mm pad with 0.4 mm pitch via array (0.3 mm via diameter) connecting to the inner ground plane. This keeps theta_JA in the 25-35 C/W range, well within industrial operating limits.
Place the 32.768 kHz RTCC crystal within 5 mm of the SOSCO/SOSCI pins with short, symmetrical traces and a grounded guard ring to minimize capacitive coupling from switching nodes. The LCD segment pins can drive capacitive loads up to 5 nF directly; for larger displays, add 100 kohm series resistors near the MCU to limit inrush current and reduce EMI. Keep analog inputs (ANx) away from PWM and CWG outputs to avoid switching noise coupling into ADC readings; use a 10 nF bypass cap at the AVSS/AVDD pair if separate analog supply pins are bonded out in your specific variant.
Do not leave ICSP pins (ICSPCLK/ICSPDAT) floating during normal operation - either pull them high through 10 kohm resistors or reconfigure them to GPIO via the PPS and APFCON registers after programming. Forgetting this can cause unintended current draw through the ICD interface. Also, when migrating code from older PIC16F1xxx parts, verify that PPS-enabled peripherals are properly unlocked via PPSLOCK before configuration writes, or the writes will silently fail. Finally, the LCD charge pump requires a 1 uF external capacitor on the LCDCAP pin - omitting it disables bias generation and the LCD will appear blank.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; for AEC-Q100 automotive grade, use the PIC16F19185T-E/MV (extended temp) which is qualified for harsh-environment deployments. Lead-free reflow compatible with JEDEC J-STD-020 profile.
