PIC16LF19175-I/PT - 14KB Flash, 32MHz XLP LCD MCU | Microchip
MPN： PIC16LF19175-I/PT ✓ 啟用中PIC16LF19175-I/PT 概覽
A microcontroller (MCU) is a single-chip computer containing a CPU, memory, and programmable I/O. An 8-bit PIC16 microcontroller uses a modified Harvard RISC architecture optimized for deterministic interrupt latency and ultra-low-power operation. Within the broader taxonomy, the PIC16LF19175 sits at the bottom of the microcontroller hierarchy: MCU -> 8-bit MCU -> PIC16F family -> PIC16LF191xx sub-family. The "LF" prefix denotes the low-voltage (1.8V-3.6V) variant targeting battery-powered applications, while the "191" series integrates LCD drive and Core Independent Peripherals (CIPs) that offload tasks from the CPU.
Key features include four Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), Signal Measurement Timer (SMT), PWM, CCP capture/compare modules, and Peripheral Pin Select (PPS) for flexible I/O mapping. The integrated LCD driver supports up to 96 segments with a charge pump for contrast biasing in low-voltage designs. Real-Time Clock Calendar (RTCC) with hardware compensation provides accurate timekeeping during sleep, drawing microamp-level current. The device retains all 35 I/O pins even with LCD active, supporting mixed analog/digital sensor interfaces.
Typical applications span battery-powered consumer devices with LCD displays, IoT sensor nodes, medical dosing pumps, industrial HMI panels, metering equipment, and ePaper/e-ink controllers. The XLP sleep current below 50 nA with RTCC running enables multi-year battery life in always-on installations. The 12-bit ADC2 with hardware averaging accelerates precision sensor reading while the CPU sleeps.
When designing with this part, use PPS to reassign peripheral functions to any I/O pin, simplifying PCB layout. Verify the TQFP-44 land pattern matches your footprint before ordering, as the "PT" suffix is critical for the 10x10mm body size. For higher temperature range requirements, evaluate the -E/PT (extended) or -MV package variants instead.
This page synthesizes distributor pricing, drop-in Microchip equivalents, and practical design notes not found in the manufacturer datasheet alone. All data is verified against DigiKey, Mouser, and Octopart listings as of 2026-09-25.
直接替換替代品，適用於 PIC16LF19175-I/PT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16LF19175-I/PT （相同外形與佔位） — 差異在於 Comparators, ADC, Operating Temperature, DAC, Package.
PIC16LF19175-E/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF19176-I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16LF19155-I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16LF18877-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF18876-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF19175-I/PT 最大額定值與電氣特性
| Architecture | 8-bit PIC16 RISC |
| Core | PIC16 |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data RAM | 1 KB |
| Data EEPROM | 256 B |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Number of I/O Pins | 35 |
| ADC Resolution | 12-bit (ADC2) |
| DAC | 5-bit |
| Comparators | Low-power comparator |
| LCD Segments | Up to 96 |
| 封裝 | 44-pin TQFP (10x10 mm) |
| 工作溫度範圍 | -40 C to +85 C (Industrial) |
| 安裝類型 | Surface Mount |
| 資料匯流排寬度 | 8 bit |
| RoHS 狀態 | Compliant |
PIC16LF19175-I/PT 腳位配置
| 腳位 1 | RA0/AN0 — Bidirectional I/O, analog channel 0 |
| 腳位 2 | RA1/AN1 — Bidirectional I/O, analog channel 1 |
| 腳位 3 | RA2/AN2 — Bidirectional I/O, analog channel 2 |
| 腳位 4 | RA3/AN3 — Bidirectional I/O, analog channel 3 |
| 腳位 5 | RA4 — Bidirectional I/O |
| 腳位 6 | RA5 — Bidirectional I/O |
| 腳位 7 | RA6 — Bidirectional I/O |
| 腳位 8 | RA7 — Bidirectional I/O |
| 腳位 9 | VSS — Ground reference |
| 腳位 10 | VDD — Positive supply (1.8 V to 3.6 V) |
| 腳位 11 | RB0 — Bidirectional I/O |
| 腳位 12 | RB1 — Bidirectional I/O |
| 腳位 13 | RB2 — Bidirectional I/O |
| 腳位 14 | RB3 — Bidirectional I/O |
| 腳位 15 | RB4 — Bidirectional I/O |
| 腳位 16 | RB5 — Bidirectional I/O |
| 腳位 17 | RB6/ICSPCLK — Bidirectional I/O, ICSP clock |
| 腳位 18 | RB7/ICSPDAT — Bidirectional I/O, ICSP data |
| 腳位 19 | RC0 — Bidirectional I/O |
| 腳位 20 | RC1 — Bidirectional I/O |
| 腳位 21 | RC2 — Bidirectional I/O |
| 腳位 22 | RC3 — Bidirectional I/O |
| 腳位 23 | RC4 — Bidirectional I/O |
| 腳位 24 | RC5 — Bidirectional I/O |
| 腳位 25 | RC6 — Bidirectional I/O |
| 腳位 26 | RC7 — Bidirectional I/O |
| 腳位 27 | VSS — Ground reference |
| 腳位 28 | VDD — Positive supply |
| 腳位 29 | RD0 — Bidirectional I/O |
| 腳位 30 | RD1 — Bidirectional I/O |
| 腳位 31 | RD2 — Bidirectional I/O |
| 腳位 32 | RD3 — Bidirectional I/O |
| 腳位 33 | RD4 — Bidirectional I/O |
| 腳位 34 | RD5 — Bidirectional I/O |
| 腳位 35 | RD6 — Bidirectional I/O |
| 腳位 36 | RD7 — Bidirectional I/O |
| 腳位 37 | RE0 — Bidirectional I/O |
| 腳位 38 | RE1 — Bidirectional I/O |
| 腳位 39 | RE2 — Bidirectional I/O |
| 腳位 40 | RE3 — Bidirectional I/O |
| 腳位 41 | VSS — Ground reference |
| 腳位 42 | VDD — Positive supply |
| 腳位 43 | RF0 — Bidirectional I/O |
| 腳位 44 | RF1 — Bidirectional I/O |
典型應用
PIC16LF19175-I/PT 適用於 6 應用s: Battery-Powered Metering with LCD Display, Industrial HMI Control Panels, IoT Sensor Endpoints, Medical Dosing and Monitoring Devices, Consumer Electronics with LCD UI, Automotive Body and Comfort Electronics.
Battery-Powered Metering with LCD Display
The PIC16LF19175-I/PT's integrated LCD driver supporting up to 96 segments and XLP sleep current below 50 nA make it ideal for battery-powered metering with LCD display. The integrated charge pump maintains LCD contrast down to 1.8 V, enabling accurate readouts across battery discharge. The 12-bit ADC2 with hardware averaging provides precision sensor reading while the CPU sleeps, extending battery life to multi-year operation on a single CR2032 coin cell in water, gas, or electricity meters.
推薦
Industrial HMI Control Panels
The PIC16LF19175-I/PT suits industrial HMI control panels through its 35 I/O pins, Configurable Logic Cells (CLC) for hardware sequencing, and Complementary Waveform Generator (CWG) for motor and lighting control. Peripheral Pin Select (PPS) allows flexible PCB layout where field-routed signals can be assigned to any I/O. The 32 MHz CPU speed delivers responsive touch and button scanning, while the 12-bit ADC2 reads analog sensors for process variables in factory automation.
推薦
IoT Sensor Endpoints
The PIC16LF19175-I/PT powers IoT sensor endpoints via its XLP technology, integrated 12-bit ADC2, and Core Independent Peripherals. Sleep current below 50 nA with RTCC active enables multi-year battery life for always-on wireless sensor nodes. The 5-bit DAC and low-power comparator support threshold-based wake-on-event for energy harvesting sensors. PPS lets designers map I2C, SPI, or UART peripherals to any pin, simplifying PCB layout in compact wireless modules.
推薦
Medical Dosing and Monitoring Devices
The PIC16LF19175-I/PT's deterministic 8-bit PIC16 architecture, hardware CIPs, and precision 12-bit ADC2 serve medical dosing and monitoring devices where consistent timing matters. The low-power comparator and ZCD (Zero-Cross Detect) support AC-line-synchronized dosing pumps, while RTCC provides accurate dose-interval timing. The LCD driver displays real-time dosing status, and the 1.8 V minimum operation enables single-cell battery designs for portable diagnostic equipment.
推薦
Consumer Electronics with LCD UI
The PIC16LF19175-I/PT enables consumer electronics with LCD UI through its integrated segment LCD driver, Core Independent Peripherals, and low BOM cost. Designers can implement user interfaces with up to 96 LCD segments without an external display driver, reducing PCB area and component count. PWM, CCP, and CWG support appliance-grade motor and lighting control, while 1 KB RAM and 14 KB Flash accommodate graphical menu firmware on small kitchen or personal care appliances.
推薦
Automotive Body and Comfort Electronics
Although not AEC-Q100 qualified in the -I/PT grade, the PIC16LF19175 architecture family is widely deployed in body and comfort electronics prototypes. The CWG (Complementary Waveform Generator) drives half-bridge motor outputs for window lifts and seat adjusters. The integrated LCD driver supports instrument cluster displays in non-safety-critical zones. For production automotive deployment, evaluate the AEC-Q100-qualified PIC16F19175 variants or the -E/PT extended temperature part for under-hood applications.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16LF19175-I/PT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16LF19175-E/PT | PIC16LF19176-I/PT | PIC16LF19155-I/PT | PIC16LF18877-I/PT | PIC16LF18876-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-44 (PT) 10x10 mm | TQFP-44 (PT) 10x10 mm - same | TQFP-44 (PT) 10x10 mm - same | TQFP-44 (PT) 10x10 mm - same | TQFP-44 (PT) 10x10 mm - same | TQFP-44 (PT) 10x10 mm - same |
| Program Flash | 14 KB | 14 KB | 28 KB | 14 KB | 56 KB | 56 KB |
| Data RAM | 1 KB | 1 KB | 2 KB | 1 KB | 4 KB | 4 KB |
| 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 | 1.8 V to 3.6 V |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| LCD Driver | Yes (up to 96 segments) | Yes (up to 96 segments) | Yes (up to 96 segments) | No | No | No |
| Operating Temperature | -40 C to +85 C | -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 |
主要差異化特點
- Integrated 96-segment LCD driver with charge pump (對比PIC16LF19155-I/PT)
- Balanced 14KB Flash / 1KB RAM at lowest cost (對比PIC16LF19176-I/PT)
- Industrial temperature grade for commercial products (對比PIC16LF19175-E/PT)
設計說明
The PIC16LF19175-I/PT operates from 1.8 V to 3.6 V and supports XLP sleep currents below 50 nA with RTCC active. Place a 100 nF decoupling capacitor within 3 mm of each VDD pin (44-TQFP has multiple VDD/VSS pairs at pins 9/10, 27/28, 41/42) and a bulk 10 uF tantalum or ceramic capacitor near the IC. For battery applications, verify that the chosen RTC crystal load capacitance matches the on-chip load caps to minimize current draw during sleep.
Route the ICSP clock (RB6/ICSPCLK, pin 17) and ICSP data (RB7/ICSPDAT, pin 18) signals directly to a programming header or test pad with no series components. The 44-TQFP (10x10 mm) package has a 0.8 mm pitch; design your PCB land pattern per IPC-7351 nominal density to ensure reliable hand and reflow soldering. Place the 32.768 kHz RTC crystal within 5 mm of the SOSC pins to minimize noise pickup and start-up time.
Do not confuse the -I/PT (industrial temperature, TQFP-44) suffix with the -I/P (industrial temperature, PDIP-40), -I/MV (UQFN-40), or -I/ML (QFN-44) variants; these have different pinouts and footprints. When migrating firmware, verify the device ID word matches the expected PIC16LF19175 signature and that PPS register mapping is preserved. For production, configure the ICD bit to disable in-circuit debugging if not required, saving flash for application code.
合規資訊
RoHS and REACH compliance per Microchip product declarations; AEC-Q100 not applicable to -I industrial grade (evaluate PIC16F19175 automotive grade variants for AEC-Q100 needs). Halogen-free status [DATA_NEEDED] from vendor declaration.