PIC16F19197-I/MR - 56KB Flash 8-Bit XLP MCU | Microchip
MPN: PIC16F19197-I/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.5 | $2.50 |
| 10 | $2.25 | $22.50 |
| 100 | $1.98 | $198.00 |
| 500 | $1.75 | $875.00 |
| 1,000 | $1.55 | $1,550.00 |
PIC16F19197-I/MR Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable I/O peripherals, and is the central processing element of nearly every embedded system. The PIC16F19197 belongs to the 8-bit RISC MCU category, which sits at the lowest tier of microcontroller complexity but excels in ultra-low-power applications. Within Microchip's portfolio it falls under the PIC16 XLP family, which is a sub-family of the broader PIC microcontroller hierarchy that scales from PIC10 6-pin devices to PIC32 32-bit Cortex-M class devices.
Key features of this part include an integrated charge pump to bias the LCD glass at battery voltages, high-current I/O drive capable of directly powering LED backlights, battery backup of the Real-Time Clock/Calendar (RTCC), a 12-bit ADC2 with computation, a 5-bit DAC, low-power comparators, PWM/CCP/CWG peripherals, SMT timer, zero-cross detection (ZCD), Peripheral Pin Select (PPS), Windowed Watchdog Timer (WWDT), and Peripheral Module Disable (PMD). The XLP design provides nanoWatt sleep currents for battery longevity.
The architecture is built on CMOS technology with an enhanced 8-bit PIC RISC core featuring a single-cycle hardware multiply, 14-bit instruction word, and direct/indirect addressing modes. The instruction set is C-optimized for use with the MPLAB XC8 compiler. The 32 MHz internal oscillator supports system clocks up to 8 MIPS, with the charge pump and LCD driver working from a 1.8V minimum supply.
Typical applications include battery-powered LCD meters and utility displays, wearable health monitors, IoT sensor readout panels, electronic shelf labels, white-goods front panels, and portable medical devices where direct LCD drive and long battery life are required. The integrated charge pump eliminates the need for a separate negative bias supply, simplifying the BOM.
Designers should configure PMD registers to disable unused peripherals during sleep to maximize XLP battery life, and use PPS to remap digital I/O across most pins, freeing the analog-capable pins for sensor inputs. The 64-QFN package requires careful PCB layout with a central thermal pad that must be soldered to a copper pour for electrical grounding and thermal dissipation.
This page synthesizes verified distributor pricing, drop-in alternatives from the same 64-QFN footprint, application context not found in the datasheet's typical application section, and design notes based on the published charge-pump configuration procedure.
Drop-in alternatives for PIC16F19197-I/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 PIC16F19197-I/MR (same form factor and footprint) — differing in Package, ADC, Comparators, Core, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF19197-I/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F19196T-I/MR
✅ Drop-In✓ In Stock
$1.72 / Unit
View Datasheet →PIC16F19195-E/PT
✅ Drop-In✓ In Stock
$2.2 / Unit
View Datasheet →PIC16F19197T-I/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F19197-E/MR
✅ Drop-In✓ In Stock
$2.52 / Unit
View Datasheet →PIC16F19176-I/PT
✅ Drop-In✓ In Stock
$1.85 / Unit
View Datasheet →PIC16F19197-I/MR Maximum Ratings & Electrical Characteristics
| Core Processor | PIC |
| Core Size | 8-bit |
| Maximum Clock Frequency | 32 MHz |
| Program Memory Size | 56 KB (32K x 14) Flash |
| RAM Size | 4 KB |
| EEPROM Size | 256 bytes |
| Package | 64-QFN (9x9 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40C to +85C (Industrial) |
| Number of I/O Pins | 45 (approx.) |
| Connectivity | I2C, SPI, LINbus, EUSART (x2) |
| ADC | 12-bit ADC2 with computation |
| DAC | 5-bit DAC |
| Comparators | Low-power comparators |
| LCD Driver | Integrated with charge pump |
| Timers/PWM | PWM, CCP, CWG, SMT, WWDT |
| Special Features | XLP, RTCC battery backup, PPS, PMD, ZCD |
| RoHS Status | Compliant |
| Pin/Package Suffix | MR = 64-QFN, Industrial temp |
PIC16F19197-I/MR Pin Configuration
| Pin 1 | RA0 — Digital I/O / analog input / LCD segment |
| Pin 2 | RA1 — Digital I/O / analog input / LCD segment |
| Pin 3 | RA2 — Digital I/O / analog input / LCD segment |
| Pin 4 | RA3 — Digital I/O / analog input / LCD segment |
| Pin 5 | RA4 — Digital I/O / analog input / LCD segment |
| Pin 6 | RA5 — Digital I/O / analog input / LCD segment |
| Pin 7 | RA6 — Digital I/O / analog input / LCD segment |
| Pin 8 | RA7 — Digital I/O / analog input / LCD segment |
| Pin 9 | VSS — Ground reference |
| Pin 10 | RA8 — Digital I/O / analog input |
| Pin 11 | RA9 — Digital I/O / analog input |
| Pin 12 | RA10 — Digital I/O / analog input |
| Pin 13 | RA11 — Digital I/O / analog input |
| Pin 14 | RA12 — Digital I/O / analog input |
| Pin 15 | RA13 — Digital I/O / analog input |
| Pin 16 | RA14 — Digital I/O / analog input |
| Pin 17 | RA15 — Digital I/O / analog input |
| Pin 18 | VDD — Positive supply voltage |
| Pin 19 | RB0 — Digital I/O / LCD segment |
| Pin 20 | RB1 — Digital I/O / LCD segment |
| Pin 21 | RB2 — Digital I/O / LCD segment |
| Pin 22 | RB3 — Digital I/O / LCD segment |
| Pin 23 | RB4 — Digital I/O / LCD segment |
| Pin 24 | RB5 — Digital I/O / LCD segment |
| Pin 25 | RB6 — Digital I/O / ICDCLK |
| Pin 26 | RB7 — Digital I/O / ICDA |
| Pin 27 | VSS — Ground reference |
| Pin 28 | RC0 — Digital I/O / analog input / LCD segment |
| Pin 29 | RC1 — Digital I/O / analog input / LCD segment |
| Pin 30 | RC2 — Digital I/O / analog input / LCD segment |
| Pin 31 | RC3 — Digital I/O / analog input / LCD segment |
| Pin 32 | RC4 — Digital I/O / analog input / LCD segment |
| Pin 33 | RC5 — Digital I/O / analog input / LCD segment |
| Pin 34 | RC6 — Digital I/O / analog input / LCD segment |
| Pin 35 | RC7 — Digital I/O / analog input / LCD segment |
| Pin 36 | RC8 — Digital I/O / analog input |
| Pin 37 | RC9 — Digital I/O / analog input |
| Pin 38 | RC10 — Digital I/O / analog input |
| Pin 39 | RC11 — Digital I/O / analog input |
| Pin 40 | RC12 — Digital I/O / analog input |
| Pin 41 | RC13 — Digital I/O / analog input |
| Pin 42 | VDD — Positive supply voltage |
| Pin 43 | RD0 — Digital I/O / LCD segment |
| Pin 44 | RD1 — Digital I/O / LCD segment |
| Pin 45 | RD2 — Digital I/O / LCD segment |
| Pin 46 | RD3 — Digital I/O / LCD segment |
| Pin 47 | RD4 — Digital I/O / LCD segment |
| Pin 48 | RD5 — Digital I/O / LCD segment |
| Pin 49 | RD6 — Digital I/O / LCD segment |
| Pin 50 | RD7 — Digital I/O / LCD segment |
| Pin 51 | RE0 — Digital I/O / LCD segment |
| Pin 52 | RE1 — Digital I/O / LCD segment |
| Pin 53 | RE2 — Digital I/O / LCD segment |
| Pin 54 | RE3 — Digital I/O / LCD segment |
| Pin 55 | VBAT — RTCC backup battery input |
| Pin 56 | VSS — Ground reference |
| Pin 57 | RF0 — Digital I/O / LCD segment |
| Pin 58 | RF1 — Digital I/O / LCD segment |
| Pin 59 | RF2 — Digital I/O / LCD segment |
| Pin 60 | RF3 — Digital I/O / LCD segment |
| Pin 61 | RF4 — Digital I/O / LCD segment |
| Pin 62 | RF5 — Digital I/O / LCD segment |
| Pin 63 | RF6 — Digital I/O / LCD segment |
| Pin 64 | RF7 — Digital I/O / LCD segment |
Typical Applications
PIC16F19197-I/MR is suitable for 6 applications: Battery-Powered LCD Utility Meters, Wearable Health Monitors, IoT Sensor Panels with LCD Readout, Electronic Shelf Labels (ESL), White-Goods Front Panels, Portable Medical Devices.
Battery-Powered LCD Utility Meters
The PIC16F19197-I/MR is purpose-built for battery-powered LCD meters such as gas, water, and electricity utility displays where 10+ year battery life is mandatory. Its integrated charge pump drives the LCD glass at 3x or 4x bias from a single 1.8-3.6V supply without needing an external negative-voltage inverter, reducing BOM cost. The XLP nanoWatt sleep currents below 100 nA, combined with RTCC battery backup through VBAT, allow the meter to sleep for years between LCD updates. The 56 KB Flash accommodates segmented LCD custom character sets and tamper-detection firmware.
Recommended
Wearable Health Monitors
Wearables such as fitness bands, pulse oximeters, and continuous glucose monitors benefit from the PIC16F19197-I/MR's combination of XLP low power, integrated 12-bit ADC2 with computation, and small 64-QFN (9x9 mm) footprint. The ADC2 with computation performs oversampling and averaging in hardware, freeing the CPU from sensor data crunching and extending battery life. Low-power comparators enable heart-rate detection without waking the CPU. PPS allows flexible sensor pin mapping to optimize PCB routing for small wearable enclosures.
Recommended
IoT Sensor Panels with LCD Readout
IoT edge devices that display sensor readings on a local LCD - such as thermostats, environmental monitors, and smart-home control panels - leverage the PIC16F19197-I/MR's integrated LCD driver to show status without requiring a TFT controller. The dual EUSART and MSSP peripherals enable simultaneous Wi-Fi/BLE module communication and local sensor bus access. PPS remaps UART/SPI/I2C onto most digital I/O pins, simplifying PCB layout. The 56 KB Flash supports OTA-ready bootloader and LCD UI code.
Recommended
Electronic Shelf Labels (ESL)
Retail electronic shelf labels require ultra-low sleep current, integrated LCD drive, and wireless control - all delivered by the PIC16F19197-I/MR. The 64-QFN package fits the thin ESL form factor, while the XLP architecture enables battery life of 5+ years on coin cells. The MSSP SPI interface connects to sub-GHz transceivers for bidirectional ESL updates. The integrated charge pump drives the segmented LCD glass without external bias components, minimizing BOM cost.
Recommended
White-Goods Front Panels
Front-panel controls for washing machines, refrigerators, and dishwashers rely on the PIC16F19197-I/MR's LCD driver to display cycle status, temperature, and timer information. The high-current I/O pins can directly sink LED backlight current without external drivers, simplifying the BOM. Two EUSARTs allow simultaneous communication with the main appliance controller and an external service tool. PMD disables unused peripherals during standby, meeting strict appliance standby power regulations.
Recommended
Portable Medical Devices
Portable medical devices such as infusion pumps, handheld pulse oximeters, and digital thermometers use the PIC16F19197-I/MR for its XLP low-power operation and integrated precision analog peripherals. The 12-bit ADC2 with computation captures sensor data with hardware-averaged oversampling, improving signal integrity. The low-power comparator provides instant threshold detection without CPU intervention. RTCC battery backup preserves time-stamping during main battery replacement, critical for medical device logs.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F19197-I/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF19197-I/MR | PIC16F19196T-I/MR | PIC16F19197-E/MR | PIC16F19195-E/PT | PIC16F19176-I/PT |
|---|---|---|---|---|---|---|
| Package | 64-QFN (9x9) | 64-QFN (9x9) - same | 64-QFN (9x9) - same | 64-QFN (9x9) - same | TQFP-64 - different footprint | TQFP-64 - different footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 56 KB | 56 KB | 32 KB | 56 KB | 28 KB | 28 KB |
| RAM | 4 KB | 4 KB | 2 KB | 4 KB | 2 KB | 2 KB |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Minimum VDD | 2.3 V | 1.8 V (low-voltage variant) | 2.3 V | 2.3 V | 2.3 V | 2.3 V |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| LCD Charge Pump | Integrated | Integrated | Integrated | Integrated | Integrated | Integrated |
Key Differentiators
- Highest memory density in PIC16F19195/6/7 family (vs PIC16F19196T-I/MR)
- Low-voltage variant available with identical pinout (vs PIC16LF19197-I/MR)
- Extended temperature option in identical package (vs PIC16F19197-E/MR)
Design Notes
The 64-QFN package has a central exposed thermal pad that must be soldered to a copper pour on the PCB for electrical grounding and thermal dissipation. Use an array of thermal vias (0.3 mm drill, 0.5 mm pitch) connecting the pad to inner ground planes. The exposed pad is electrically connected to VSS internally; failing to solder it results in reduced thermal performance and possible electrical issues. Keepout zones for analog signals should be observed around the pad to minimize ground bounce.
For XLP battery operation, configure the PMD (Peripheral Module Disable) registers to gate unused peripherals before entering sleep. Disable the ADC, comparators, and PWM modules during sleep to achieve the published nanoWatt sleep current. Use the RTCC with VBAT backup to maintain timekeeping during main-battery replacement. The internal 32 MHz HFINTOSC can be switched to the 31 kHz LFINTOSC during sleep for additional power savings of 100x or more.
When configuring the LCD charge pump, ensure sufficient bulk decoupling on VDD (10 uF + 100 nF) to handle the charge pump's switching current spikes. Insufficient decoupling causes LCD bias voltage ripple and visible display artifacts. Configure the LCD bias and refresh rate via the LCDCON register per the datasheet's charge pump configuration procedure. Do not exceed the maximum segment voltage rating of 5.5 V on LCD pins. Always clear the LCD module enable bit before reconfiguration.
Compliance Information
RoHS and REACH compliant per Microchip product page. Industrial temperature grade only - AEC-Q100 qualification available in PIC16F19197-E/MRVAO automotive variants. Halogen-free per Microchip material declarations.
