PIC16LF19175-I/MV - 8-Bit MCU, 32MHz, 14KB Flash, LCD, UQFN-40
MPN： PIC16LF19175-I/MV ✓ 啟用中PIC16LF19175-I/MV 概覽
A microcontroller (MCU) is an integrated circuit that combines a CPU core, program and data memory, and programmable I/O peripherals on a single silicon die. The PIC16F191xx family sits within Microchip's 8-bit PIC16 hierarchy, which traces up to the broader category of microcontrollers -> embedded processors -> semiconductors. The 'LF' prefix designates the 1.8 V to 3.6 V low-voltage variant, optimized for coin-cell and lithium battery operation, while the non-'LF' PIC16F19175 operates from 2.3 V to 5.5 V.
Key features include a 12-bit ADC2 with computation, a 5-bit/10-bit DAC, two comparators with rail-to-rail inputs, a zero-cross detect (ZCD), a complementary waveform generator (CWG), four 16-bit PWM timers, capture/compare/PWM (CCP), signal measurement timer (SMT), peripheral pin select (PPS), real-time clock/calendar (RTCC), and an LCD driver supporting up to 248 segments with integrated charge pump. The device also includes CRC/SCAN, Hardware Limit Timer (HLT), and Windowed Watchdog Timer (WWDT) for functional safety, and offers 35 user I/O pins on this 40-pin package variant.
Architecturally, the PIC16LF19175 uses a RISC-based PIC16 core with a hardware stack and 14-bit instruction word, paired with a 32 MHz internal oscillator that removes the need for an external crystal in most designs. Core Independent Peripherals operate without CPU intervention, freeing the core for low-power sleep states and reducing average current draw - critical for battery-operated human-machine interfaces and metering products.
Typical applications include battery-powered LCD keypads, IoT sensor nodes with displays, home automation control panels, medical glucose meters and portable monitors, and industrial HMI tiles. The wide operating voltage range (1.8 V to 3.6 V) and integrated charge-pump LCD driver eliminate the need for a boost converter on the display bias rail, reducing BOM cost and PCB area.
When designing with this device, plan the I/O pinout against the UQFN-40 land pattern early - the 5x5 mm package with exposed pad requires a continuous ground plane beneath the die for thermal dissipation and electrical reference. Use the PPS feature to remap peripherals to available physical pins and avoid routing conflicts late in the design.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 PIC16LF19175-I/MV — 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/MV （相同外形與佔位） — 差異在於 Comparators, Operating Temperature, Package, ADC, DAC.
PIC16F19175-I/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF19176-I/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF19155-I/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF19156-I/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF18875-I/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF19175-I/MV 最大額定值與電氣特性
| Core | PIC16 8-bit RISC |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data SRAM | 1 KB |
| Data EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Number of I/O Pins | 35 |
| ADC | 12-bit ADC2 with computation |
| DAC | 5/10-bit DAC |
| Comparators | 2 x rail-to-rail |
| Zero-Cross Detect (ZCD) | Yes |
| PWM Channels | 4 x 16-bit |
| CCP Modules | Yes (CCP) |
| CWG (Complementary Waveform Generator) | Yes |
| SMT (Signal Measurement Timer) | Yes |
| PPS (Peripheral Pin Select) | Yes |
| RTCC (Real-Time Clock/Calendar) | Yes |
| LCD Driver | Up to 248 segments with integrated charge pump |
| Windowed Watchdog Timer (WWDT) | Yes |
| Hardware Limit Timer (HLT) | Yes |
| CRC/SCAN | Yes |
| 封裝 | 40-pin UQFN (5x5 mm) with exposed pad |
| 安裝類型 | Surface Mount |
| 工作溫度 | -40 C to +85 C |
| RoHS 狀態 | Compliant |
PIC16LF19175-I/MV 腳位配置
| 腳位 1 | RA0/AN0 — Digital I/O / ADC input |
| 腳位 2 | RA1/AN1 — Digital I/O / ADC input |
| 腳位 3 | RA2/AN2 — Digital I/O / ADC input |
| 腳位 4 | RA3/AN3 — Digital I/O / ADC input |
| 腳位 5 | RA4 — Digital I/O |
| 腳位 6 | RA5 — Digital I/O |
| 腳位 7 | RA6 — Digital I/O |
| 腳位 8 | RA7 — Digital I/O |
| 腳位 9 | VSS — Ground |
| 腳位 10 | RA8 — Digital I/O |
| 腳位 11 | RA9 — Digital I/O |
| 腳位 12 | RA10 — Digital I/O |
| 腳位 13 | RA11 — Digital I/O |
| 腳位 14 | RA12 — Digital I/O |
| 腳位 15 | RA13 — Digital I/O |
| 腳位 16 | RA14 — Digital I/O |
| 腳位 17 | RA15 — Digital I/O |
| 腳位 18 | VSS — Ground (second bond) |
| 腳位 19 | RC0 — Digital I/O |
| 腳位 20 | RC1 — Digital I/O |
| 腳位 21 | RC2 — Digital I/O |
| 腳位 22 | RC3 — Digital I/O |
| 腳位 23 | RC4 — Digital I/O |
| 腳位 24 | RC5 — Digital I/O |
| 腳位 25 | RC6 — Digital I/O |
| 腳位 26 | RC7 — Digital I/O |
| 腳位 27 | RC8 — Digital I/O |
| 腳位 28 | RC9 — Digital I/O |
| 腳位 29 | RC10 — Digital I/O |
| 腳位 30 | RC11 — Digital I/O |
| 腳位 31 | RC12 — Digital I/O |
| 腳位 32 | RC13 — Digital I/O |
| 腳位 33 | RC14 — Digital I/O |
| 腳位 34 | RC15 — Digital I/O |
| 腳位 35 | VDD — Positive supply |
| 腳位 36 | VDD — Positive supply (second bond) |
| 腳位 37 | RB0 — Digital I/O |
| 腳位 38 | RB1 — Digital I/O |
| 腳位 39 | RB2 — Digital I/O |
| 腳位 40 | RB3 — Digital I/O / ICSPCLK |
典型應用
PIC16LF19175-I/MV 適用於 6 應用s: Battery-Powered LCD Keypad, IoT Sensor Node with Display, Home Automation Control Panel, Medical Glucose Meter / Portable Monitor, Industrial HMI Tile, Smart Meter / Utility Display.
Battery-Powered LCD Keypad
The PIC16LF19175-I/MV is engineered for battery-powered LCD keypads in security and access-control panels. Its integrated LCD driver supports up to 248 segments with an on-chip charge pump, eliminating the need for an external -VEE boost converter on the LCD bias rail. The 1.8 V to 3.6 V operating range and XLP sleep modes draw under 1 uA in deep sleep, extending coin-cell life to multi-year operation on a single CR2032.
推薦
IoT Sensor Node with Display
For IoT sensor nodes integrating an LCD readout (temperature, humidity, air quality), the PIC16LF19175-I/MV combines a 12-bit ADC2 with computation, two rail-to-rail comparators, and an LCD driver in a 5x5 mm UQFN-40. PPS flexibility routes the ADC and PWM outputs to convenient PCB locations, while Core Independent Peripherals (CIPs) sample sensors without waking the CPU, dropping average current draw for battery-powered LoRa or BLE sensor tiles.
推薦
Home Automation Control Panel
Wall-mounted home automation panels with segment LCDs benefit from the PIC16LF19175-I/MV's 35 I/O pins, four 16-bit PWM channels (for LED dimming and backlight control), and RTCC for scheduled scenes. The 32 MHz CPU executes capacitive-touch firmware via the CWG and SMT peripherals, while the integrated charge pump drives a 7- to 10-segment LCD without extra components - reducing BOM cost in volume-production control panels.
推薦
Medical Glucose Meter / Portable Monitor
Portable medical devices such as glucose meters and pulse oximeters leverage the PIC16LF19175-I/MV's 12-bit ADC2 for high-accuracy sensor readings and the integrated LCD driver for readout displays. The 1.8 V minimum supply voltage allows direct operation from a single 3 V coin cell or rechargeable Li-ion cell, while XLP sleep modes extend battery life across multi-day patient use cases without compromising ADC linearity.
推薦
Industrial HMI Tile
Industrial human-machine interface tiles use the PIC16LF19175-I/MV to drive segment LCDs in factory automation equipment, combining the on-chip charge-pump LCD driver with the Windowed Watchdog Timer (WWDT) and CRC/SCAN for functional safety. The Hardware Limit Timer (HLT) adds hardware-based motor/switch protection without CPU intervention, while the 1.8 V to 3.6 V supply tolerates 24 V industrial bus power through a simple LDO front-end.
推薦
Smart Meter / Utility Display
Electricity, water, and gas meters with segment LCD readout deploy the PIC16LF19175-I/MV for its multi-year battery life, integrated LCD charge pump, and tamper-detection features. The RTCC drives time-of-use billing schedules while the PIC16 core runs metering firmware and communications stacks. The -40 C to +85 C industrial temperature range ensures reliable operation across outdoor meter installations.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16LF19175-I/MV — 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 | PIC16F19175-I/MV | PIC16LF19176-I/MV | PIC16LF19155-I/MV | PIC16LF19156-I/MV | PIC16LF18875-I/MV |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | UQFN-40 (5x5 mm) | UQFN-40 (5x5 mm) - same | UQFN-40 (5x5 mm) - same | UQFN-40 (5x5 mm) - same | UQFN-40 (5x5 mm) - same | UQFN-40 (5x5 mm) - same |
| Flash Memory | 14 KB | 14 KB | 28 KB | 14 KB | 28 KB | 14 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Operating Voltage | 1.8 V to 3.6 V | 2.3 V to 5.5 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 |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Integrated LCD Driver | Yes (up to 248 segments + charge pump) | Yes | Yes | Yes | Yes | No (no charge pump) |
| ADC | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 | 10-bit ADC |
主要差異化特點
- Integrated LCD charge pump eliminates external bias converter (對比PIC16LF18875-I/MV)
- 12-bit ADC2 with computation engine (對比PIC16LF18875-I/MV)
- Core Independent Peripherals (CIPs) for low-power operation (對比PIC16LF19176-I/MV)
設計說明
Estimated: The UQFN-40 (5x5 mm) exposed pad must be soldered to a continuous ground copper pour for thermal dissipation and electrical reference. Recommended copper area is at least 25 mm square of 1 oz copper on the top layer, with at least 8 thermal vias (0.3 mm drill) stitching the exposed pad to the inner ground plane. Without this stitching, junction temperature can rise 15-20 C above ambient at 32 MHz operation.
Place a 100 nF decoupling capacitor as close as possible to each VDD pin, with a bulk 1 uF to 10 uF ceramic on the main supply rail. The integrated LCD charge pump generates its own bias voltage but draws transient current up to 1 mA during display refresh - keep the VDD decoupling local to avoid LCD artifacts. Use PPS to remap sensitive analog inputs away from digital switching pins.
Do not exceed the absolute maximum VDD of 4.0 V on the PIC16LF19175 - this is the low-voltage variant. For 5 V-tolerant designs, choose the PIC16F19175 (2.3 V to 5.5 V). When migrating firmware between LF and non-LF variants, verify that any code paths relying on brown-out reset thresholds are reconfigured to match the target part's BOR specification.
合規資訊
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - not designed for automotive safety-critical applications.
