PIC16LF19176-E/P - 8-bit XLP MCU, 28KB Flash, 40-PDIP | Microchip
MPN: PIC16LF19176-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.27 | $227.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.85 | $1,850.00 |
PIC16LF19176-E/P Overview
An 8-bit microcontroller (MCU) is a compact programmable processor that integrates CPU, memory, and peripherals on a single silicon die. The PIC16 family sits within Microchip's 8-bit PIC microcontroller hierarchy, which is part of the broader category of microcontrollers (MCUs) and embedded controllers. PIC MCUs use a modified Harvard RISC architecture with separate program and data buses, allowing single-cycle instruction execution. The 'LF' prefix indicates a low-voltage (1.8V minimum VDD) variant optimized for battery-powered and energy-harvesting designs, distinguishing it from standard 'F' variants that typically require 2.0V or higher.
Key features include a 12-bit ADC with computation (ADC2), a 5-bit DAC, a low-power comparator, PWM/CCP/CWG waveform generation, signal measurement timer (SMT), zero-crossing detect (ZCD), peripheral pin select (PPS), and a hardware RTCC with calendar mode. The device also offers windowed watchdog timer (WWDT), peripheral module disable (PMD), and hardware limit timer (HLT) for safety-critical applications. With 36 to 50 I/O pins available in the 40-pin PDIP form factor, designers can interface multiple sensors, displays, and communication peripherals simultaneously.
The architecture combines a 14-bit instruction word PIC16 CPU with a vectored interrupt controller and hardware multiplier, achieving 32MHz operation at less than 1.2mA active current and sub-uA sleep currents via nanoWatt XLP technology. The integrated LCD charge pump supports bias generation up to 5V VLCD from a single 1.8V to 3.6V supply, eliminating the need for external boost components in low-power LCD designs.
Typical applications include battery-powered glucose meters and thermostats, electronic shelf labels, smart remote controls, and any portable LCD-based product requiring long battery life. The combination of low power, integrated LCD drive, and CIPs makes the PIC16LF19176 family a strong fit for cost-sensitive consumer medical and IoT products. Designers should budget PCB area for the 40-pin PDIP footprint (600 mil body width) and verify the VLCD charge pump output current capability against their LCD segment count and refresh rate requirements.
Drop-in alternatives for PIC16LF19176-E/P — 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 PIC16LF19176-E/P (same form factor and footprint) — differing in ADC, Package, Comparators, Mounting Type, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF19176-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF19186-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF19177-I/P
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16LF19196-I/P
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16LF18876-I/PT
✅ Drop-In✓ In Stock
$1.72 / Unit
View Datasheet →PIC16LF18876-E/P
✅ Drop-In✓ In Stock
$1.92 / Unit
View Datasheet →PIC16LF19176-E/P Maximum Ratings & Electrical Characteristics
| Product Family | PIC16LF191xx (PIC16 XLP) |
| CPU Core | PIC16 8-bit RISC (modified Harvard) |
| Instruction Word Width | 14-bit |
| Program Memory (FLASH) | 28 KB (16K x 14 words) |
| Data RAM | 2 KB (2048 bytes) |
| EEPROM | 256 bytes |
| Maximum Clock Frequency | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Operating Temperature | -40 C to +125 C (Extended, '-E') |
| I/O Pins | 36 (on 40-pin PDIP) |
| ADC | 12-bit ADC2 (with computation, auto-acquisition) |
| DAC | 5-bit DAC |
| Comparators | Low-power comparators (multiple) |
| LCD Driver | Integrated with charge pump (VLCD bias generation) |
| Timers/CCP/CWG/SMT | PWM, CCP, CWG, SMT, ZCD peripherals |
| RTCC | Hardware Real-Time Clock/Calendar |
| Watchdog | WWDT (windowed) + standard WDT |
| Peripheral Pin Select (PPS) | Yes (remappable digital peripherals) |
| Package | 40-pin PDIP (600 mil) |
| Mounting Type | Through-hole |
| RoHS Status | Compliant (Pb-free) |
| MSL Level | 1 (PDIP, not moisture-sensitive) |
| Power Technology | eXtreme Low-Power (XLP) nanoWatt |
PIC16LF19176-E/P Pin Configuration
| Pin 1 | MCLR/VPP/RE3 — Master Clear (reset) input / Programming voltage / Digital I/O RE3 |
| Pin 2 | RA0 — PORTA bit 0 (analog/digital I/O) |
| Pin 3 | RA1 — PORTA bit 1 (analog/digital I/O) |
| Pin 4 | RA2 — PORTA bit 2 (analog/digital I/O) |
| Pin 5 | RA3 — PORTA bit 3 (analog/digital I/O) |
| Pin 6 | RA4 — PORTA bit 4 (analog/digital I/O) |
| Pin 7 | RA5 — PORTA bit 5 (analog/digital I/O) |
| Pin 8 | RA6 — PORTA bit 6 (analog/digital I/O, OSC2) |
| Pin 9 | RA7 — PORTA bit 7 (analog/digital I/O, OSC1) |
| Pin 10 | RC0 — PORTC bit 0 (digital I/O) |
| Pin 11 | VDD — Positive supply voltage |
| Pin 12 | VSS — Ground reference |
| Pin 13 | RC1 — PORTC bit 1 (digital I/O) |
| Pin 14 | RC2 — PORTC bit 2 (digital I/O) |
| Pin 15 | RC3 — PORTC bit 3 (digital I/O) |
| Pin 16 | RC4 — PORTC bit 4 (digital I/O) |
| Pin 17 | RC5 — PORTC bit 5 (digital I/O) |
| Pin 18 | RC6 — PORTC bit 6 (digital I/O) |
| Pin 19 | RC7 — PORTC bit 7 (digital I/O) |
| Pin 20 | RB0 — PORTB bit 0 (interrupt-on-change capable) |
| Pin 21 | RB1 — PORTB bit 1 (interrupt-on-change capable) |
| Pin 22 | RB2 — PORTB bit 2 (interrupt-on-change capable) |
| Pin 23 | RB3 — PORTB bit 3 (interrupt-on-change capable) |
| Pin 24 | RB4 — PORTB bit 4 (interrupt-on-change capable) |
| Pin 25 | RB5 — PORTB bit 5 (interrupt-on-change capable) |
| Pin 26 | RB6 — PORTB bit 6 (interrupt-on-change capable, ICD clock) |
| Pin 27 | RB7 — PORTB bit 7 (interrupt-on-change capable, ICD data) |
| Pin 28 | RD0 — PORTD bit 0 (digital I/O) |
| Pin 29 | RD1 — PORTD bit 1 (digital I/O) |
| Pin 30 | RD2 — PORTD bit 2 (digital I/O) |
| Pin 31 | VSS — Ground reference |
| Pin 32 | VDD — Positive supply voltage |
| Pin 33 | RD3 — PORTD bit 3 (digital I/O) |
| Pin 34 | RD4 — PORTD bit 4 (digital I/O) |
| Pin 35 | RD5 — PORTD bit 5 (digital I/O) |
| Pin 36 | RD6 — PORTD bit 6 (digital I/O) |
| Pin 37 | RD7 — PORTD bit 7 (digital I/O) |
| Pin 38 | RE0 — PORTE bit 0 (digital I/O) |
| Pin 39 | RE1 — PORTE bit 1 (digital I/O) |
| Pin 40 | RE2 — PORTE bit 2 (digital I/O) |
Typical Applications
PIC16LF19176-E/P is suitable for 6 applications: Battery-Powered Glucose Meter, Electronic Shelf Label (ESL), Smart Thermostat, Universal Remote Control, Industrial Sensor Transmitter (4-20 mA Loop), Portable Medical Wearable.
Battery-Powered Glucose Meter
The PIC16LF19176-E/P is well suited to handheld glucose meters thanks to its nanoWatt XLP sleep currents below 50 nA typical with RTCC running, 12-bit ADC2 with computation for electrochemical strip measurement, and integrated LCD charge pump that lets the meter display results without external boost circuitry. Operating from a single CR2032 coin cell at 1.8 V to 3.6 V, the device delivers 32 MIPS throughput for fast ADC post-processing while keeping quiescent draw low enough for multi-year battery life. Compared with discrete ADC + LCD driver + MCU designs, the integrated ADC2/CWG/SMT/PPS peripherals reduce BOM cost and PCB area significantly.
Recommended
Electronic Shelf Label (ESL)
Electronic shelf labels in retail rely on sub-uA sleep current, integrated segmented LCD drive, and wireless-free data updates over a wired bus. The PIC16LF19176-E/P delivers all three: XLP sleep current under 50 nA, on-chip charge pump generating VLCD up to 5 V from a 3 V coin cell, and 28 KB FLASH for store/price database storage. The 12-bit ADC2 can read ambient light sensors for adaptive display contrast, and the RTCC with calendar mode handles scheduled price-refresh events. Drop-in compatibility with PIC16LF19186-I/P (36 KB FLASH) supports ESL hubs with extended inventory databases without PCB redesign.
Recommended
Smart Thermostat
Smart thermostats need a low-power MCU to drive an LCD, sample temperature/humidity sensors, run scheduling logic, and wake up periodically to update the display. The PIC16LF19176-E/P supplies all of this: integrated LCD charge pump drives the segmented LCD directly from a 1.8 V to 3.6 V supply, the 12-bit ADC2 reads NTC thermistor or digital temperature sensor outputs, and the RTCC tracks real-time schedule events. CWG and PWM peripherals can also drive piezo buzzer feedback for button presses. The 256-byte EEPROM stores user-setpoint preferences across power cycles, eliminating external EEPROM cost.
Recommended
Universal Remote Control
Universal remote controls benefit from low active current, fast wake from sleep, and IR waveform generation. The PIC16LF19176-E/P combines XLP technology with the CWG (Complementary Waveform Generator) and DSM peripherals, which can synthesize 38 kHz / 40 kHz / 56 kHz carrier-modulated IR waveforms in hardware without CPU involvement. The 28 KB FLASH holds large IR code libraries for TV/AVR/STB brands, and the 12-bit ADC2 supports battery voltage monitoring. Sub-uA sleep current extends shelf life of AAA-battery-powered remotes into multi-year ranges.
Recommended
Industrial Sensor Transmitter (4-20 mA Loop)
Two-wire 4-20 mA loop-powered industrial transmitters need a low-voltage, low-power MCU with high-resolution ADC and hardware PWM for loop current modulation. The PIC16LF19176-E/P fits with its 1.8 V to 3.6 V operation, 12-bit ADC2 for sensor signal conditioning, and CCP/PWM peripherals for loop-current control. The hardware limit timer (HLT) and WWDT satisfy functional safety monitoring requirements. Extended -40 C to +125 C temperature grade supports outdoor process-control installations. Drop-in compatibility with PIC16LF19186-I/P allows field upgrades to add HART or wireless modems via the same PCB footprint.
Recommended
Portable Medical Wearable
Wearable medical patches and continuous monitors require sub-uA sleep, on-chip LCD drive, and BLE/spi-friendly GPIOs for sensor interfaces. The PIC16LF19176-E/P provides nanoWatt XLP sleep (<50 nA), an integrated LCD charge pump for status display, and PPS remappable peripherals for SPI/I2C sensor buses. With 28 KB FLASH and 256-byte EEPROM, firmware can implement sensor-fusion algorithms plus persistent patient ID. The extended -40 C to +125 C temperature range supports body-temperature environments. Pair with a Microchip RN4020 or similar BLE module for wireless connectivity.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF19176-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF19176-I/P | PIC16LF19186-I/P | PIC16LF19177-I/P | PIC16LF19196-I/P | PIC16LF18876-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-pin PDIP | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same |
| FLASH Program Memory | 28 KB | 28 KB | 36 KB (+29%) | 36 KB (+29%) | 64 KB (+129%) | 64 KB (+129%) |
| Data RAM | 2 KB | 2 KB | 4 KB (+100%) | 2 KB | 4 KB (+100%) | 4 KB (+100%) |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Maximum Clock Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage Range | 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 | 1.8 V to 3.6 V |
| Operating Temperature Range | -40 C to +125 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Integrated LCD Driver | Yes (with charge pump) | Yes (with charge pump) | Yes (with charge pump) | Yes (with charge pump) | Yes (with charge pump) | No |
| ADC Resolution | 12-bit (ADC2) | 12-bit (ADC2) | 12-bit (ADC2) | 12-bit (ADC2) | 12-bit (ADC2) | 10-bit |
Key Differentiators
- Only PIC16LF19176 family member with LCD charge pump + 12-bit ADC2 combination in 40-pin PDIP (vs PIC16LF18876-E/P)
- Extended temperature grade (-40C to +125C) vs industrial (-40C to +85C) (vs PIC16LF19176-I/P)
- Lower FLASH but matched peripheral set vs PIC16LF19186-I/P (vs PIC16LF19186-I/P)
Design Notes
Estimated: with a 3.0 V CR2032 coin cell and 1 uA average draw (mostly sleep with RTCC), the PIC16LF19176-E/P can achieve roughly 220 mAh / 1 uA = ~25 years of theoretical battery life on a single cell. In practice, LCD refresh bursts and radio duty cycle limit life to 5-10 years. Use the XLP sleep mode with RTCC running, disable unused peripherals via PMD, and gate I/O pins low before entering sleep. Decouple VDD with 100 nF + 10 uF ceramic placed within 5 mm of pins 11/12 and 31/32.
Place decoupling capacitors as close as possible to VDD/VSS pairs. The 40-pin PDIP requires two VDD pins (11 and 32) and two VSS pins (12 and 31), each needing its own 100 nF bypass capacitor. Add a 10 uF bulk capacitor near the MCU. For ICD (In-Circuit Debugger) connections, leave RB6/RB7 accessible and reserve RB3/RB4 for PGC/PGD if you also use ICSP. Trace impedance is non-critical below 10 MHz; for SPI buses above 10 MHz, use short traces and series damping resistors.
Avoid enabling both ADC2 and the LCD charge pump simultaneously on the same I/O pins - check the pin multiplexing matrix in section 4 of the datasheet. The 'LF' suffix is required for operation below 2.3 V; do not substitute 'F' variants in 1.8 V designs. When migrating firmware from PIC16LF18876 to PIC16LF19176, verify the ADC configuration registers because the 12-bit ADC2 has different setup bit fields than the older 10-bit ADC used in PIC16LF188xx.
Compliance Information
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified (industrial/consumer MCU). Lead-free PDIP package, halogen-free per Microchip material declarations.
