PIC16LF19185-E/MV
PIC16LF19185-E/MV - 8-bit XLP MCU, 14KB Flash, 48-UQFN | Microchip
The Microchip Technology PIC16LF19185-E/MV is an 8-bit PIC microcontroller in the PIC16F191xx family with XLP (eXtreme Low Power) technology, 14 KB (8K x 14 words) of Flash program memory and a maximum CPU clock of 32 MHz. It is offered in a 48-pin UQFN (6 mm x 6 mm) package, integrating 1 KB RAM, 256 bytes EEPROM, an LCD driver, 12-bit ADC2, 5-bit/12-bit DAC, low-power comparator, PWM, CCP, CWG, SMT, ZCD, PPS, RTCC, HLT, WWDT, and PMD peripherals in a single die.
A microcontroller (microcontroller unit, MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash/ROM), working RAM, and programmable peripherals around a shared bus. PIC16F19185 devices belong to the mid-range 8-bit MCU family that maps directly into the broader embedded-controller taxonomy of microcontroller -> embedded controller -> semiconductor. They use a RISC-style Harvard architecture with a 14-bit instruction word, which keeps code density high and dynamic power low - one of the reasons PIC mid-range MCUs dominate coin-cell and battery-powered designs.
Key features of this part include a 32 MHz internal oscillator, an on-chip LCD driver with charge pump, 12-bit ADC with computation (ADC2), zero-cross detection (ZCD), signal-measurement timer (SMT), complementary waveform generator (CWG), peripheral pin select (PPS) for flexible I/O mapping, and the eXtreme Low-Power (XLP) sleep modes that drop quiescent current into the sub-1 uA range. The 'LF' prefix indicates the wide Vdd operating range of 1.8 V to 3.6 V, suitable for two-AA and lithium primary cells.
Architecturally, the device is built around Microchip's enhanced mid-range core with hardware multiply and a vectored interrupt controller, supported by a configurable clock tree (HFINTOSC, LFINTOSC, MFINTOSC, SOSC) and a 32 kHz secondary oscillator for RTCC operation. Integrated core peripherals and PPS let engineers route digital functions to almost any GPIO, simplifying PCB layout and reducing the BOM.
Typical applications include battery-powered human-machine interface (HMI) panels, low-cost thermostats and appliance controls, IoT sensor nodes with LCD readout, handheld medical monitors, and consumer remote controls. The combination of LCD driver, ADC2 and XLP makes this family a strong fit for any design that must display data while running from a small primary cell for years. The 48-UQFN package is the right choice when the PCB has limited area but the design still needs >30 GPIO, more than 32 KB-class 8-bit MCUs typically offer in smaller packages.
When designing with this part, always place the 0.1 uF Vdd decoupling capacitor within 3 mm of the Vdd pin and route the analog AVdd/AVss pair as a Kelvin connection. Ensure unused I/O are configured as outputs low to minimize leakage in XLP sleep modes.
This page synthesizes the latest distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, optimized for engineers evaluating the PIC16LF19185-E/MV for new designs or as a pin-compatible replacement.
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