PIC16LF19197-E/MR - 56KB Flash XLP LCD MCU | Microchip
MPN: PIC16LF19197-E/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.65 | $5.65 |
| 10 | $5.1 | $51.00 |
| 100 | $4.25 | $425.00 |
| 500 | $3.78 | $1,890.00 |
| 1,000 | $3.4 | $3,400.00 |
PIC16LF19197-E/MR Overview
A PIC (Peripheral Interface Controller) microcontroller is a compact, programmable computer-on-a-chip built on Harvard architecture. Within Microchip's portfolio, the PIC16 family sits between the PIC10/12/14 baseline line and the PIC18 performance line, targeting low-power embedded applications. The 'LF' prefix indicates a 1.8V-3.6V wide VDD range; 'XLP' denotes Microchip's eXtreme Low-Power technology for battery-driven designs, with sleep currents in the nanoamp range. This particular device family belongs to the hypernym chain: microcontroller -> 8-bit MCU -> PIC16 -> XLP LCD line -> integrated LCD driver MCU.
The PIC16LF19197 integrates a 12-bit ADC with Computation (ADC2), a 5-bit DAC, a low-power comparator, zero-cross detect (ZCD), PWM, CCP, CWG, SMT (Signal Measurement Timer), RTCC with Hardware RTCC, Windowed Watchdog Timer (WWDT), Peripheral Module Disable (PMD), and Peripheral Pin Select (PPS) for flexible I/O mapping. It provides up to 56 KB of self-programmable Flash, 4 KB of SRAM, and 256 bytes of EEPROM, enabling firmware field-updates and parameter storage.
In the PIC16F19197 family, the 'LF' low-voltage core pairs with a battery-friendly charge pump that keeps the LCD contrast supply stable even when VDD drops toward the brown-out threshold. PPS removes fixed peripheral-to-pin mappings, so engineers can route UART, PWM, and timers to any available I/O, simplifying PCB layout. The CWG (Complementary Waveform Generator) and SMT timers reduce CPU overhead for motor control and signal measurement tasks, while PMD allows unused peripherals to be fully powered down, cutting dynamic current.
Typical applications include battery-powered LCD thermostats, utility metering displays, medical glucose and infusion monitors, IoT sensor nodes with character LCDs, and industrial HMI panels. The XLP active current below 50 uA/MHz and the LCD charge pump keep total system current low enough that two AA alkaline cells can power the device for years. When designing with this MCU, ensure VDD decoupling uses a 100 nF ceramic capacitor placed within 5 mm of the VDD pin, route the charge-pump capacitor (LCD_PUMP) traces short and symmetric to minimize ripple on the LCD bias rails, and use PPS to keep high-speed signals away from analog ADC inputs.
Drop-in alternatives for PIC16LF19197-E/MR — 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 PIC16LF19197-E/MR (same form factor and footprint) — differing in ADC, Package, Comparators, LCD Driver, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF19196-E/MR
✅ Drop-In✓ In Stock
$1.78 / Unit
View Datasheet →PIC16LF19195-E/MR
✅ Drop-In✓ In Stock
$1.62 / Unit
View Datasheet →PIC16LF19176-E/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16LF18876-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.72 / Unit
View Datasheet →PIC16LF19197-E/MR Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC16 RISC (Harvard) |
| Family | PIC16F191xx XLP LCD |
| Program Memory (Flash) | 56 KB (32K x 14 words) |
| Data SRAM | 4 KB |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| Temperature Grade | -40C to +125C (Industrial, 'E') |
| Package | 64-pin QFN (9x9 mm) |
| ADC | 12-bit ADC2 with Computation |
| DAC | 5-bit DAC |
| Comparators | Low-power comparator with selectable reference |
| LCD Driver | Integrated LCD with charge pump |
| Timers | PWM, CCP, CWG, SMT, RTCC |
| Watchdog | WWDT (Windowed Watchdog Timer) |
| Peripheral Pin Select (PPS) | Yes |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16LF19197-E/MR 64-pin qfn (9x9 mm) Pin Configuration Guide
Pin configuration for PIC16LF19197-E/MR (64-pin qfn (9x9 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC16LF19197-E/MR.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC16LF19197-E/MR is suitable for 6 applications: Battery-Powered Thermostat with LCD, Medical Glucose Meter with Segment LCD, Utility Meter with Multi-Segment LCD, Industrial HMI Control Panel, IoT Sensor Node with LCD Readout, Automotive Dashboard Segment Display.
Battery-Powered Thermostat with LCD
The PIC16LF19197-E/MR is a strong fit for battery-powered thermostats because its integrated LCD charge pump maintains display contrast down to 1.8V on VDD, while the LF core and XLP architecture keep idle current in the nanoamp range. With 56 KB of Flash, the MCU can store scheduling firmware, PID control loops, and a multilingual UI font table. Placed as the system master, it scans the segment LCD directly, samples a thermistor through the 12-bit ADC2, and drives a triac via PWM for HVAC load control, eliminating an external LCD driver IC and reducing BOM cost by roughly $0.50 per unit.
Recommended
Medical Glucose Meter with Segment LCD
In a glucose meter, the PIC16LF19197-E/MR runs the strip-impedance measurement algorithm on the 12-bit ADC2 with computation, drives the segment LCD via the integrated charge pump, and logs readings to the 256-byte EEPROM. The XLP sleep current under 100 nA lets two CR2032 coin cells power the meter for over 1000 measurements. The 32 MHz core executes the electrochemical assay in under 2 seconds, keeping the user-facing latency low, and PPS allows flexible PCB routing of the test-strip analog front-end.
Recommended
Utility Meter with Multi-Segment LCD
Smart electricity, water, and gas meters use the PIC16LF19197-E/MR to drive large multi-segment LCDs that show consumption and tariff data. The integrated charge pump supports up to 320 segments at low temperatures, and the RTCC with hardware calendar tracks time-of-use tariffs over the 10+ year meter lifetime. The LF core survives brownouts down to 1.8V, and the WWDT guards against firmware lockups. PPS lets the designer keep the metrology analog front-end isolated from the LCD drive traces.
Recommended
Industrial HMI Control Panel
Factory HMI panels leverage the PIC16LF19197-E/MR's 56 KB Flash to store multilingual graphical menus on a character LCD and its 32 MHz core for responsive key scanning and Modbus RTU communications via the EUSART. PPS allows the RS-485 transceiver signals to be routed to any GPIO, simplifying PCB layout. The -E temperature grade (up to 125C) lets the MCU survive unheated enclosures. The CWG and SMT peripherals provide precise timing for motor-control feedback in attached servo drives.
Recommended
IoT Sensor Node with LCD Readout
Wireless IoT sensor nodes (e.g., LoRa or Sub-GHz sensor boards) use the PIC16LF19197-E/MR as a low-power host that samples environmental sensors, drives a small character LCD for local readout, and forwards data over UART to a radio module. The XLP active current under 50 uA/MHz plus nanoamp sleep allows multi-year operation on two AA cells, while the 56 KB Flash stores over-the-air update staging and sensor calibration data. PPS simplifies PCB routing between the sensors, LCD, and radio.
Recommended
Automotive Dashboard Segment Display
Automotive dashboard sub-displays for odometer, fuel, and trip information use the PIC16LF19197-E/MR with the -E (industrial -40C to 125C) temperature grade to drive a multi-segment LCD behind the cluster. The integrated LCD charge pump maintains contrast in cold-start conditions at 6V cranking transients when the supply is regulated down to 3.3V. The CWG peripheral drives LED backlight PWM, and the RTCC keeps accurate time for trip logging.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF19197-E/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF19196-E/MR | PIC16LF19195-E/MR | PIC16LF19176-E/MR | PIC16LF18876-I/PT |
|---|---|---|---|---|---|
| Package | 64-QFN (9x9 mm) | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | TQFP-64 - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 56 KB | 48 KB | 28 KB | 28 KB | 56 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 2 KB | 4 KB |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Operating Voltage | 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 |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| LCD Charge Pump | Yes (integrated) | Yes | Yes | No | No |
| ADC | 12-bit ADC2 with Computation | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 | 10-bit ADC |
Key Differentiators
- Highest Flash in the PIC16F19197 LCD family (vs PIC16LF19196-E/MR)
- Integrated LCD charge pump for low-voltage battery designs (vs PIC16LF18876-I/PT)
- Nanoamp XLP sleep current with RTCC running (vs PIC16LF19176-E/MR)
Design Notes
Estimated: at VDD=3.3V and active mode @ 32 MHz the PIC16LF19197 draws roughly 8 mA peak; in XLP sleep with LCD disabled current drops below 100 nA. Always place a 100 nF 0402 ceramic decoupling capacitor within 5 mm of each VDD pin and a 10 uF bulk capacitor on the regulator output. Use the PMD (Peripheral Module Disable) registers to power down unused peripherals and the LCD charge pump during deep sleep to minimize quiescent draw in battery applications.
The 64-pin QFN (9x9 mm) package has a large center exposed pad (EP) that MUST be soldered to a ground plane for thermal dissipation and electrical reference. Use a thermal via array (9x9 grid of 0.3 mm drilled vias) under the EP to sink the ~0.6 W maximum dissipation. Keep all analog ADC traces short and away from PWM/CCP switching traces; use PPS to route noisy digital peripherals to GPIO pins on the opposite side of the QFN from the analog inputs.
Do not omit the LCD charge-pump flying capacitor (typically 1 uF X7R) on the LCD_PUMP pins; without it the LCD bias rails collapse and segments appear blank below 2.5V VDD. Configure PPS carefully - unlike older PIC16 devices, multiple peripherals can compete for the same pin and Microchip's code configurator (MCC) is the safest way to lock the assignments. Finally, ensure your programmer/debugger is the MPLAB PICkit 4 or Snap because legacy ICD2 does not support this family.
Compliance Information
RoHS and REACH compliant per Microchip product page. Industrial temperature grade (-40C to +125C). Not AEC-Q100 qualified; for AEC-Q100 automotive applications use a -VAO suffix variant.
