PIC16F19197T-I/PT - 8-Bit 32MHz 56KB Flash MCU | Microchip
MPN: PIC16F19197T-I/PT β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $4.85 | $48.50 |
| 100 | $4.28 | $428.00 |
| 500 | $3.81 | $1,905.00 |
| 1,000 | $3.42 | $3,420.00 |
PIC16F19197T-I/PT Overview
An MCU (microcontroller unit) is a single-chip computer that integrates a CPU, memory, and programmable peripherals. Within the broader taxonomy, the PIC16F19197 belongs to the 8-bit MCU -> microcontroller -> embedded processor -> semiconductor family. It is particularly aimed at battery-powered, low-power, LCD-driven applications where Core Independent Peripherals (CIPs) and intelligent analog blocks reduce CPU load and extend battery life.
Key features of the PIC16F19197T-I/PT include eXtreme Low-Power (XLP) technology with nanoWatt XLP sleep modes, an integrated charge pump for contrast-stable LCD bias generation in low-voltage conditions, high-current I/O pins capable of directly driving LCD backlighting, and intelligent analog peripherals such as a 12-bit ADC2 with computation, a 5-/9-bit DAC, low-power comparators (LP COMP), zero-cross detect (ZCD), and a peripheral touch controller. The device integrates a Windowed Watchdog Timer (WWDT), Hardware Limit Timer (HLT), Peripheral Module Disable (PMD), Signal Measurement Timer (SMT), and a Real-Time Clock/Calendar (RTCC) with battery backup support.
The architecture follows Microchip's enhanced mid-range 8-bit CPU with a 14-bit instruction word, hardware stack, and Peripheral Pin Select (PPS) which allows digital peripheral I/O remapping at runtime. The charge pump enables regulated LCD operation even as the supply droops during battery discharge, while CIPs like the Complementary Waveform Generator (CWG), PWM, CCP, and SMT let complex waveforms run independently of the CPU core.
Typical applications include battery-powered handheld instruments with LCD displays (multimeters, environmental sensors, glucose meters), home-automation control panels, IoT edge nodes with segmented LCD readouts, automotive interior climate/HVAC interfaces, and industrial metering equipment that must operate for years on a single battery.
When designing with this part, ensure the charge-pump external caps and LCD bias network match the chosen glass, and budget quiescent current at <1 uA in sleep to preserve battery life. The TQFP-64 footprint is generous for prototype hand-soldering but requires thermal relief on ground pads for production wave or selective soldering processes.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, making it a one-stop reference for new product introduction and second-source validation.
Drop-in alternatives for PIC16F19197T-I/PT β 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 PIC16F19197T-I/PT (same form factor and footprint) β differing in Package, ADC, Operating Temperature, DAC, LCD Driver.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16F19197-I/PT
β Drop-Inπ Reference alternative (not in catalog)
PIC16F19196T-I/MR
β Drop-Inβ In Stock
$1.72 / Unit
View Datasheet βPIC16F19195-I/PT
β Drop-Inπ Reference alternative (not in catalog)
PIC16F19195-E/PT
β Drop-Inβ In Stock
$2.2 / Unit
View Datasheet βPIC16F18877-I/PT
β Drop-Inβ In Stock
$2.18 / Unit
View Datasheet βPIC16F18876-I/ML
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
PIC16F19197T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC (Enhanced Mid-Range, 14-bit instruction word) |
| Family | PIC16F19195/6/7 (XLP LCD) |
| Program Memory (Flash) | 56 KB (32K x 14) |
| Data RAM | 4 KB |
| Data EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Supply Voltage (VDD) | 2.5 V to 5.5 V |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 64-pin TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| ADC | 12-bit ADC2 with computation |
| DAC | 5-bit / 9-bit DAC |
| LCD Driver | Integrated, with charge pump |
| I/O Pins | High-current drive, LCD backlight capable |
| Core Independent Peripherals (CIPs) | CWG, PWM, CCP, SMT, ZCD, LP COMP, PPS |
| Watchdog Timer | Windowed WDT (WWDT) + Hardware Limit Timer (HLT) |
| RTCC | Yes, with battery backup domain |
| RoHS Status | Compliant |
PIC16F19197T-I/PT Pin Configuration
| Pin 1 | RE3/MCLR β Master Clear (reset) input / digital input only |
| Pin 2 | RA0 β PORTA bit 0 / analog / segment line |
| Pin 3 | RA1 β PORTA bit 1 / analog / segment line |
| Pin 4 | RA2 β PORTA bit 2 / analog / segment line |
| Pin 5 | RA3 β PORTA bit 3 / analog / segment line |
| Pin 6 | RA4 β PORTA bit 4 / analog / segment line |
| Pin 7 | RA5 β PORTA bit 5 / analog / segment line |
| Pin 8 | RA6 β PORTA bit 6 / analog / segment line |
| Pin 9 | RA7 β PORTA bit 7 / analog / segment line |
| Pin 10 | VSS β Ground reference |
| Pin 11 | VDD β Positive supply voltage (2.5-5.5 V) |
| Pin 12 | RB0 β PORTB bit 0 / segment line / PPS |
| Pin 13 | RB1 β PORTB bit 1 / segment line / PPS |
| Pin 14 | RB2 β PORTB bit 2 / segment line / PPS |
| Pin 15 | RB3 β PORTB bit 3 / segment line / PPS |
| Pin 16 | RB4 β PORTB bit 4 / segment line / PPS |
| Pin 17 | RB5 β PORTB bit 5 / segment line / PPS |
| Pin 18 | RB6 β PORTB bit 6 / segment line / ICSCLK |
| Pin 19 | RB7 β PORTB bit 7 / segment line / ICSDAT |
| Pin 20 | RC0 β PORTC bit 0 / segment line |
| Pin 21 | RC1 β PORTC bit 1 / segment line |
| Pin 22 | RC2 β PORTC bit 2 / segment line |
| Pin 23 | RC3 β PORTC bit 3 / segment line |
| Pin 24 | RC4 β PORTC bit 4 / segment line |
| Pin 25 | RC5 β PORTC bit 5 / segment line |
| Pin 26 | RC6 β PORTC bit 6 / segment line / TX |
| Pin 27 | RC7 β PORTC bit 7 / segment line / RX |
| Pin 28 | RD0 β PORTD bit 0 / segment line |
| Pin 29 | RD1 β PORTD bit 1 / segment line |
| Pin 30 | RD2 β PORTD bit 2 / segment line |
| Pin 31 | RD3 β PORTD bit 3 / segment line |
| Pin 32 | RD4 β PORTD bit 4 / segment line |
| Pin 33 | RD5 β PORTD bit 5 / segment line |
| Pin 34 | RD6 β PORTD bit 6 / segment line |
| Pin 35 | RD7 β PORTD bit 7 / segment line |
| Pin 36 | RE0 β PORTE bit 0 / segment line |
| Pin 37 | RE1 β PORTE bit 1 / segment line |
| Pin 38 | RE2 β PORTE bit 2 / segment line |
| Pin 39 | AVSS β Analog ground |
| Pin 40 | AVDD β Analog supply voltage |
| Pin 41 | RF0 β PORTF bit 0 / analog / segment line |
| Pin 42 | RF1 β PORTF bit 1 / analog / segment line |
| Pin 43 | RF2 β PORTF bit 2 / analog / segment line |
| Pin 44 | RF3 β PORTF bit 3 / analog / segment line |
| Pin 45 | RF4 β PORTF bit 4 / analog / segment line |
| Pin 46 | RF5 β PORTF bit 5 / analog / segment line |
| Pin 47 | RF6 β PORTF bit 6 / analog / segment line |
| Pin 48 | RF7 β PORTF bit 7 / analog / segment line |
| Pin 49 | RG0 β PORTG bit 0 / LCD common |
| Pin 50 | RG1 β PORTG bit 1 / LCD common |
| Pin 51 | RG2 β PORTG bit 2 / LCD common |
| Pin 52 | RG3 β PORTG bit 3 / LCD common |
| Pin 53 | RG4 β PORTG bit 4 / LCD common |
| Pin 54 | RG5 β PORTG bit 5 / LCD common |
| Pin 55 | RG6 β PORTG bit 6 / LCD common |
| Pin 56 | RG7 β PORTG bit 7 / LCD common |
| Pin 57 | RH0 β PORTH bit 0 / LCD segment |
| Pin 58 | RH1 β PORTH bit 1 / LCD segment |
| Pin 59 | RH2 β PORTH bit 2 / LCD segment |
| Pin 60 | RH3 β PORTH bit 3 / LCD segment |
| Pin 61 | OSC1/CLKIN β Crystal oscillator input / external clock |
| Pin 62 | OSC2/CLKOUT β Crystal oscillator output / clock output |
| Pin 63 | VSS β Ground reference (second pad) |
| Pin 64 | VDD β Positive supply voltage (second pad) |
Typical Applications
PIC16F19197T-I/PT is suitable for 7 applications: Battery-Powered Handheld Multimeter, Home-Automation Control Panel with LCD, Industrial Metering and Sensor Hub, Medical Patient Monitor / Glucose Meter, Automotive Interior HVAC Interface, IoT Edge Node with Segmented LCD Readout, Portable Environmental Sensor / Weather Station.
Battery-Powered Handheld Multimeter
The PIC16F19197T-I/PT is purpose-built for handheld digital multimeters that run on 3 V coin cells or two AA cells. Its segmented LCD driver with integrated charge pump maintains readable contrast as VDD droops to 1.8 V, while nanoWatt XLP sleep keeps quiescent current under 1 uA between measurements. The 12-bit ADC2 with computation performs RMS conversion and auto-ranging in hardware, letting the CPU remain idle for most of the duty cycle. With 56 KB Flash, complex UI state machines, calibration tables, and BLE command stacks fit comfortably on-chip. High-current I/O pins can sink enough to directly drive the LCD backlight without an external transistor, reducing BOM cost. Use the RTCC for accurate timestamping of logged readings, and rely on the Windowed WDT to recover from brownout-induced hangs.
Recommended
Home-Automation Control Panel with LCD
For wall-mounted home-automation keypads and thermostats, the PIC16F19197T-I/PT combines an integrated segmented LCD with Core Independent Peripherals that handle touch sensing, zero-cross dimming, and PWM in hardware. The 32 MHz CPU is fast enough to drive a Zigbee/Matter co-processor over UART while updating the LCD at 64 Hz. The integrated charge pump keeps the LCD readable when the panel is powered from a harvested energy source or USB, and the RTCC with battery backup maintains time-of-day across power cycles. PPS lets the designer reassign UART, SPI, and I2C pins on the fly, simplifying PCB routing when the radio module changes. PPS-driven PWM can drive a buzzer for audible feedback, while the CWG can synthesize haptic waveforms without CPU load.
Recommended
Industrial Metering and Sensor Hub
In industrial flow meters, gas detectors, and smart sensor hubs, the PIC16F19197T-I/PT shines thanks to its 12-bit ADC2 with hardware oversampling and computation, plus low-power comparators for threshold detection. The 56 KB Flash accommodates MODBUS, Wireless M-Bus, or LoRaWAN MAC stacks while the 4 KB RAM buffers measurement frames. The RTCC with battery backup keeps time-stamping accurate across brownout events, critical for regulatory compliance. Its -40C to +85C industrial temperature range and 2.5-5.5 V supply allow direct operation from 3.3 V or 5 V industrial rails. Core Independent Peripherals run sensor acquisition and zero-cross detection in the background, leaving CPU bandwidth for protocol encryption and LCD refresh simultaneously.
Recommended
Medical Patient Monitor / Glucose Meter
For portable medical devices such as glucose meters, pulse oximeters, and infusion pump interfaces, the PIC16F19197T-I/PT offers deterministic low-power behavior essential for IEC 62366-1 usability and IEC 60601-1 EMC compliance. The 12-bit ADC2 with computation provides accurate electrochemistry readings, while the integrated LCD driver shows results without a costly OLED. nanoWatt XLP sleep current below 1 uA preserves coin-cell life across 1000+ measurements. The Windowed WDT and Hardware Limit Timer prevent firmware lockups that could affect patient safety, and the PPS block lets designers re-route sensitive analog traces away from noisy digital lines without re-spinning the PCB. The high-current I/O pins can drive a small piezo buzzer for audible alerts without an external driver.
Recommended
Automotive Interior HVAC Interface
In automotive rear-seat HVAC controls and steering-wheel switch panels, the PIC16F19197T-I/PT interfaces to LIN or CAN via the EUSART or a companion transceiver, while driving a segmented LCD for cabin temperature and fan-speed display. Its 2.5-5.5 V supply tolerates cranking transients when paired with an external LDO, and the high-current I/O can drive LCD backlighting directly through PWM. The CWG peripheral synthesizes complementary drive waveforms for Peltier-style climate elements, while the zero-cross detect simplifies TRIAC-based fan control. The PIC16F19197 family is not AEC-Q100 qualified by default, so for safety-critical applications consider the AEC-Q100 sibling or add external watchdog supervision.
Recommended
IoT Edge Node with Segmented LCD Readout
For IoT edge nodes that need to display status locally on a segmented LCD without an OLED, the PIC16F19197T-I/PT pairs an integrated LCD driver with XLP sleep modes and Core Independent Peripherals that run periodic sensor reads without waking the CPU. Its 32 MHz HFINTOSC eliminates the external crystal typically required for accurate UART baud rates against a host MCU or radio. The 56 KB Flash accommodates TLS lite, an MQTT-SN client, and application firmware; 4 KB RAM is enough for TLS record buffers when paired with an external ATECC608B. With the Windowed WDT and RTCC battery backup, the device can survive brownouts and time-stamp sensor data reliably, while PPS lets designers swap radio modules without PCB changes.
Recommended
Portable Environmental Sensor / Weather Station
For portable weather stations measuring temperature, humidity, and barometric pressure, the PIC16F19197T-I/PT reads sensors over I2C using the MSSP peripheral and displays results on a segmented LCD. The 12-bit ADC2 with computation supports resistive bridge sensors such as soil moisture probes, and the low-power comparators detect threshold crossings for wake-on-event. The integrated charge pump keeps the LCD readable at low temperatures when battery voltage drops, while nanoWatt XLP sleep enables multi-year battery life on a 2400 mAh Li-coin cell. The RTCC with battery backup timestamps each reading for trend logging, and the SMT peripheral accurately measures wind speed or rain gauge pulse widths without CPU intervention.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F19197T-I/PT β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F19197-I/PT | PIC16F19196T-I/MR | PIC16F19195-I/PT | PIC16F18877-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-64 (PT) 10x10 mm | TQFP-64 (PT) 10x10 mm - same | QFN-64 (MR) 9x9 mm | TQFP-64 (PT) 10x10 mm - same | TQFP-64 (PT) 10x10 mm - same |
| Flash Memory | 56 KB | 56 KB | 32 KB | 32 KB | 56 KB |
| Data RAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| Data EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V |
| Integrated LCD Driver with Charge Pump | Yes | Yes | Yes | Yes | No (no LCD block) |
| XLP nanoWatt Sleep | Yes (<1 uA typical) | Yes (<1 uA) | Yes (<1 uA) | Yes (<1 uA) | Yes (XLP, but LCD variants omitted) |
| Approx Unit Price (qty 1) | $5.42 | ~$5.42 | ~$4.85 | ~$4.50 | ~$5.10 |
Key Differentiators
- Integrated LCD charge pump for low-voltage LCD contrast (vs PIC16F18877-I/PT)
- Largest Flash variant in the PIC16F19195/6/7 family (vs PIC16F19196T-I/MR)
- TQFP-64 with hand-solder-friendly 0.5 mm pitch (vs PIC16F19196T-I/MR (QFN-64))
- Core Independent Peripherals reduce CPU wake-ups (vs PIC16F19195-I/PT)
Design Notes
The PIC16F19197T-I/PT integrates a charge pump that generates regulated LCD bias voltages from VDD as low as 1.8 V. To preserve low-voltage operation, place the charge-pump flying capacitor (typically 1 nF to 100 nF X7R) as close as possible to the CPSON and CPSOFF pins with short, wide traces. Decouple VDD with at least 100 nF plus 1 uF ceramic near each VDD pin (pins 11 and 64); avoid sharing decoupling with high-current LCD segment lines to prevent noise coupling into analog references.
Estimated: at the maximum CPU clock of 32 MHz and 5.5 V supply, core power dissipation is roughly VDD * Iactive. With Iactive ~ 8 mA typical, dissipation is around 44 mW in active mode. The TQFP-64 package has a theta_JA of approximately 60 C/W (4-layer PCB with 1 oz copper), yielding a junction-to-ambient rise of only ~3 C, so no heatsink is needed. However, in sealed enclosures at 85 C ambient, ensure total system dissipation stays under 500 mW to keep the junction below 125 C.
Route the high-current LCD segment/comment traces first using 0.2 mm wide traces to handle peak segment loadings. Keep analog traces (ADC inputs, DAC outputs, comparator inputs) at least 0.5 mm away from digital lines and crossing at right angles only. Use a ground plane under the MCU with a 4-mm clearance around the crystal area to reduce stray capacitance. For the TQFP-64, follow JEDEC MSL-3 handling procedures (dry-pack storage) and limit reflow to a maximum of 245 C peak per IPC/JEDEC J-STD-020.
Do not enable the integrated charge pump before configuring the LCD bias voltage and pump clock - this can damage the panel or cause ghost segments. The PPS registers must be unlocked (write PPSLOCK = 0x55, 0xAA sequence) before reassignment; failure to do so results in silent I/O mis-routing that is hard to debug. The Windowed WDT must be enabled in firmware within the first 60 ms of boot or the device can reset unexpectedly under EMI. Avoid driving more than 25 mA per I/O pin or 200 mA total VDD current, or risk long-term reliability issues.
Place the external 32.768 kHz crystal for RTCC within 5 mm of OSC1/OSC2 pins with a guard ring tied to analog ground. Use the dedicated RTCC battery backup domain (VBAT) to power the RTCC during main VDD loss; connect VBAT through a Schottky diode to the main battery rail. Keep the ICD pins RB6/RB7 free of any pulldown that exceeds 5 kohm, since these pins share ICSP programming and need to swing rail-to-rail for reliable in-circuit programming. Refer to Microchip's TB3102 layout application note for a worked example.
Compliance Information
RoHS-compliant per Microchip product page. Standard -I industrial grade (-40C to +85C), not AEC-Q100 qualified; for AEC-Q100 automotive applications, contact Microchip for the automotive-grade variant. Halogen-free status not stated in the verified data.
