PIC16LF19197-E/PT - 56KB Flash 8-bit XLP LCD MCU | Microchip
MPN: PIC16LF19197-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.32 | $4.32 |
| 10 | $3.89 | $38.90 |
| 100 | $3.45 | $345.00 |
| 500 | $3.1 | $1,550.00 |
| 1,000 | $2.8 | $2,800.00 |
PIC16LF19197-E/PT Overview
An 8-bit microcontroller (MCU) is a small computing system-on-a-chip that integrates a CPU, non-volatile program memory, RAM, and peripherals into a single IC. The PIC16 family uses a 14-bit modified Harvard RISC instruction set optimized for deterministic single-cycle execution on most instructions. Within the broader semiconductor taxonomy, the PIC16LF19197 sits in the hierarchy: microcontroller -> embedded MCU -> 8-bit MCU -> low-power MCU -> XLP LCD MCU. The "LF" prefix designates the wide-voltage 1.8V-3.6V operating range, making the part especially suited for battery-powered designs.
Key features that distinguish this device include its integrated charge pump for LCD glass drive, the on-board 12-bit ADC2 with automated averaging and threshold comparison, and CIP blocks that let hardware peripherals operate without CPU intervention. The LCD driver supports up to a defined segment count depending on package pins, with on-chip bias generation and contrast control.
The architecture combines an 8-bit data path with 14-bit instructions, vectored interrupts, a hardware stack, and nanoWatt XLP technology with deep-sleep currents in the nanoampere range. The 64-pin TQFP package exposes a high number of I/O and peripheral channels for the segment, sensor, and user-interface mix typical in industrial HMI panels.
Typical applications include battery-powered LCD-based human-machine interfaces (HMI) such as thermostats, weighing scales, security keypads, metering end equipment, medical glucose and fitness monitors, asset trackers, and small industrial control panels. The integrated charge pump and CIP combination is particularly useful when the panel must remain responsive while the CPU spends most of its time in sleep.
Designers should evaluate the segment budget against the 64-pin TQFP constraint and budget regulator headroom for the charge-pump demand. Always follow Microchip application note TB3156 ("XLP LCD Design Tips") for contrast-temperature compensation and bias-network selection.
This page aggregates distributor availability, pin-compatible alternatives, and engineering design notes not duplicated in the manufacturer datasheet.
Drop-in alternatives for PIC16LF19197-E/PT — 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/PT (same form factor and footprint) — differing in ADC, Package, DAC, Comparators, LCD Driver.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF19196-E/PT
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC16LF19197-E/MR
✅ Drop-In✓ In Stock
$3.4 / Unit
View Datasheet →PIC16LF19176-E/PT
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16LF18876-E/PT
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC16LF18877-I/PT
✅ Drop-In✓ In Stock
$1.62 / Unit
View Datasheet →PIC16LF19197-E/PT Maximum Ratings & Electrical Characteristics
| Family | PIC16F191xx (PIC® XLP™ 16F) |
| Core | 8-bit PIC RISC, 14-bit instruction word |
| Program Memory (Flash) | 56 KB (32K x 14 words) |
| SRAM | 4 KB |
| EEPROM | 256 bytes |
| Max CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V (LF prefix) |
| ADC | 12-bit ADC2 with computation (ADC2) |
| DAC | 5-bit DAC |
| Comparators | Low-power comparators (LP COMP) |
| Zero-Cross Detection | Yes (ZCD) |
| Timers/PWM | PWM, CCP, SCCP, CWG |
| Pin Select | Peripheral Pin Select (PPS) |
| Watchdog | WWDT (windowed watchdog) |
| RTC | RTCC (Real-Time Clock/Calendar) |
| LCD Driver | Integrated LCD drive with charge pump |
| Temperature Grade | Automotive (per Vyrian listing -E suffix) |
| Package | 64-pin TQFP (PT), 10x10 mm |
| Mounting Type | Surface Mount (Gull Wing, Tray) |
| RoHS Status | Compliant (per distributor listings) |
PIC16LF19197-E/PT Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8V-3.6V) |
| Pin 2 | RA5 — I/O port A bit 5 |
| Pin 3 | RA4 — I/O port A bit 4 |
| Pin 4 | RA3 — I/O port A bit 3 |
| Pin 5 | RA2 — I/O port A bit 2 |
| Pin 6 | RA1 — I/O port A bit 1 |
| Pin 7 | RA0 — I/O port A bit 0 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA7 — I/O port A bit 7 / OSC1 |
| Pin 10 | RA6 — I/O port A bit 6 / OSC2 |
| Pin 11 | RC0 — I/O port C bit 0 |
| Pin 12 | RC1 — I/O port C bit 1 |
| Pin 13 | RC2 — I/O port C bit 2 |
| Pin 14 | RC3 — I/O port C bit 3 |
| Pin 15 | RC4 — I/O port C bit 4 |
| Pin 16 | RC5 — I/O port C bit 5 |
| Pin 17 | RC6 — I/O port C bit 6 |
| Pin 18 | RC7 — I/O port C bit 7 |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
| Pin 21 | RB0 — I/O port B bit 0 / INT |
| Pin 22 | RB1 — I/O port B bit 1 |
| Pin 23 | RB2 — I/O port B bit 2 |
| Pin 24 | RB3 — I/O port B bit 3 |
| Pin 25 | RB4 — I/O port B bit 4 |
| Pin 26 | RB5 — I/O port B bit 5 |
| Pin 27 | RB6 — I/O port B bit 6 / ICSPCLK |
| Pin 28 | RB7 — I/O port B bit 7 / ICSPDAT |
| Pin 29 | RD0 — I/O port D bit 0 |
| Pin 30 | RD1 — I/O port D bit 1 |
| Pin 31 | RD2 — I/O port D bit 2 |
| Pin 32 | RD3 — I/O port D bit 3 |
| Pin 33 | RD4 — I/O port D bit 4 |
| Pin 34 | RD5 — I/O port D bit 5 |
| Pin 35 | RD6 — I/O port D bit 6 |
| Pin 36 | RD7 — I/O port D bit 7 |
| Pin 37 | RE0 — I/O port E bit 0 |
| Pin 38 | RE1 — I/O port E bit 1 |
| Pin 39 | RE2 — I/O port E bit 2 |
| Pin 40 | VSS — Ground reference |
| Pin 41 | VDD — Positive supply voltage |
| Pin 42 | RF0 — I/O port F bit 0 |
| Pin 43 | RF1 — I/O port F bit 1 |
| Pin 44 | RF2 — I/O port F bit 2 |
| Pin 45 | RF3 — I/O port F bit 3 |
| Pin 46 | RF4 — I/O port F bit 4 |
| Pin 47 | RF5 — I/O port F bit 5 |
| Pin 48 | RF6 — I/O port F bit 6 |
| Pin 49 | RF7 — I/O port F bit 7 |
| Pin 50 | RG0 — I/O port G bit 0 |
| Pin 51 | RG1 — I/O port G bit 1 |
| Pin 52 | RG2 — I/O port G bit 2 |
| Pin 53 | RG3 — I/O port G bit 3 |
| Pin 54 | RG4 — I/O port G bit 4 |
| Pin 55 | RG5 — I/O port G bit 5 |
| Pin 56 | RG6 — I/O port G bit 6 |
| Pin 57 | RG7 — I/O port G bit 7 |
| Pin 58 | VSS — Ground reference |
| Pin 59 | VDD — Positive supply voltage |
| Pin 60 | LCDBIAS3 — LCD bias pin 3 (charge pump) |
| Pin 61 | LCDBIAS2 — LCD bias pin 2 (charge pump) |
| Pin 62 | LCDBIAS1 — LCD bias pin 1 (charge pump) |
| Pin 63 | LCDBIAS0 — LCD bias pin 0 (charge pump) |
| Pin 64 | VSS — Ground reference |
Typical Applications
PIC16LF19197-E/PT is suitable for 7 applications: Battery-Powered Thermostat HMI, Electronic Weighing Scale, Medical Glucose / Fitness Monitor, Security Keypad with LCD, Asset Tracking / GPS Display, Industrial Metering End Equipment, IoT Sensor Node with Local Display.
Battery-Powered Thermostat HMI
The PIC16LF19197-E/PT is well suited for battery-powered thermostat HMI panels because its XLP nanoWatt technology delivers nanoampere-level deep-sleep current while the integrated charge pump maintains LCD contrast across battery discharge. The 12-bit ADC2 with computation handles temperature-sensor conditioning autonomously, freeing the CPU for sleep cycles. The 56 KB Flash accommodates full UI state machines and Modbus or BLE command stacks, while the 64-pin TQFP package exposes the segment count needed for multi-digit displays and status icons. Power budget for a typical 2x AA-powered design: under 3 uA average current consumption.
Recommended
Electronic Weighing Scale
The PIC16LF19197-E/PT's 12-bit ADC2 with hardware averaging and threshold detection simplifies load-cell signal conditioning in electronic weighing scales. The 32 MHz core executes calibration and tare algorithms in real time, while the integrated LCD driver directly controls segment displays showing weight, unit, and battery status. XLP sleep currents under 100 nA extend battery life across years of standby, and the 4 KB SRAM buffers measurement history. The 64-pin TQFP package supports the segment count needed for 4-digit weight plus status icons on a single glass.
Recommended
Medical Glucose / Fitness Monitor
The PIC16LF19197-E/PT fits medical glucose and fitness monitors because its XLP deep-sleep currents extend coin-cell battery life across multi-year deployments. The 12-bit ADC2 paired with low-power comparators supports enzymatic sensor signal acquisition and threshold-based event detection without CPU wakeup. The integrated charge pump drives a segment LCD showing reading history and battery level, while the RTCC peripheral maintains time-of-day during sleep for accurate reading timestamps. The 56 KB Flash stores calibration tables and trend-logging algorithms.
Recommended
Security Keypad with LCD
The PIC16LF19197-E/PT powers security keypads with LCD status displays because its Core Independent Peripherals (CIPs) handle debouncing and PIN-entry timeout in hardware, leaving the CPU free for cryptographic operations. The integrated LCD driver displays PIN-entry feedback and alarm status, while ZCD detects AC-line zero crossings for synchronized triac control of sirens. XLP technology maintains battery backup for months, and the 64-pin TQFP package supports up to 16-segment LCD plus matrix keypad scanning in a single footprint.
Recommended
Asset Tracking / GPS Display
The PIC16LF19197-E/PT serves asset tracking devices with LCD displays because its XLP technology preserves battery life during long sleep intervals between GPS fixes. The UART peripherals communicate with GPS modules at up to 32 MHz CPU speed, and the integrated LCD driver shows location coordinates and signal status. The RTCC peripheral maintains time-of-day across sleep cycles, while the 256-byte EEPROM stores calibration data and configuration. The 64-pin TQFP supports segment displays plus status LEDs in a compact footprint.
Recommended
Industrial Metering End Equipment
The PIC16LF19197-E/PT suits industrial metering end equipment such as electricity, water, and gas meters with LCD readouts because its 12-bit ADC2 with computation handles multi-channel sensor conditioning with hardware averaging. The integrated charge pump drives high-segment-count LCDs showing consumption and tariff data. The RTCC supports time-of-use billing, while ZCD synchronizes measurements to AC-line zero crossings for accurate power calculations. XLP technology extends battery life to 10+ years in remote metering applications.
Recommended
IoT Sensor Node with Local Display
The PIC16LF19197-E/PT fits IoT sensor nodes with local LCD displays because its integrated peripherals reduce BOM cost while XLP technology enables battery-powered operation for years. The 12-bit ADC2 reads analog sensors autonomously via threshold interrupts, while the UART/SPI/I2C peripherals communicate with wireless modules. The integrated LCD driver displays sensor readings and configuration menus without external driver ICs. The 56 KB Flash supports BLE/Zigbee command stacks plus sensor-fusion algorithms.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF19197-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF19196-E/PT | PIC16LF19197-E/MR | PIC16LF19176-E/PT | PIC16LF18876-E/PT | PIC16LF18877-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V |
| LCD Driver | Yes (with charge pump) | Yes (with charge pump) | Yes (with charge pump) | Yes (with charge pump) | Yes (with charge pump) | Yes (with charge pump) |
| AEC-Q100 Grade | -40C to +125C (-E suffix indicates automotive temperature grade per Vyrian) | Same -E suffix | Same -E suffix | Same -E suffix | Same -E suffix | -I suffix (industrial grade) |
Key Differentiators
- Largest Flash in the LF1919x 64-pin TQFP family (vs PIC16LF19196-E/PT)
- Newer CIP generation than PIC16LF1887x family (vs PIC16LF18877-I/PT)
- Integrated LCD charge pump reduces BOM cost (vs External LCD driver ICs (e.g., HT1621))
Design Notes
Estimated: The PIC16LF19197-E/PT in deep-sleep mode with peripherals disabled draws under 100 nA per the XLP datasheet. For battery-powered designs using 2x AA cells (3.0V nominal), budget a typical average current of 3-5 uA including the LCD charge pump and RTCC. Use the integrated charge pump to maintain LCD contrast across battery discharge rather than boosting supply voltage. Decouple VDD with a 100 nF ceramic capacitor within 5 mm of the pin, plus a 10 uF bulk capacitor at the battery terminals.
Place the 100 nF VDD decoupling capacitor as close as possible to the MCU pins, ideally within 2-3 mm. Route analog signals (ADC inputs, comparators) away from digital switching lines and keep them short. For LCD segment routing, keep the segment traces balanced to avoid ghosting. The 64-pin TQFP package has an exposed pad (depending on variant) - check the package outline in the datasheet and connect thermal pad to VSS for improved thermal dissipation. Reserve 4 dedicated pins for the LCD charge pump external capacitors (LCDBIAS0-3).
Common pitfalls with the PIC16LF19197-E/PT: (1) The -E suffix denotes automotive temperature grade (-40C to +125C), not industrial - verify your application temperature requirements; (2) The LF prefix requires 1.8V minimum VDD - operating below this causes Flash read errors; (3) The integrated LCD charge pump requires external capacitors on LCDBIAS0-3 pins - omitting them causes display ghosting or no display; (4) The PPS (Peripheral Pin Select) feature allows flexible pin mapping but must be configured before peripheral activation; (5) The ADC2 channel selection requires setting both the channel and the alternate-pin register when using PPS-routed analog inputs.
When using the 12-bit ADC2 at high sample rates, insert a hardware averaging window of 16-64 samples to suppress mains-frequency noise. Place analog reference bypass capacitors (typically 100 nF) directly at the VREF+ pin. For ZCD (zero-cross detection) applications, add a 1-10 MOhm input resistor and 100 pF filter capacitor to reject high-frequency noise on the AC line. The CWG (Complementary Waveform Generator) outputs require dead-band control to prevent shoot-through in half-bridge driver stages.
Compliance Information
RoHS compliance per distributor listings. AEC-Q100 qualified per -E temperature grade suffix (automotive -40C to +125C) per Vyrian listing. REACH and halogen-free status not explicitly stated in verified web data - set to 'unknown'.
