PIC16LF19185-I/PT - 8-Bit 32MHz 14KB Flash XLP MCU | Microchip
MPN： PIC16LF19185-I/PT ✓ 啟用中PIC16LF19185-I/PT 概覽
An 8-bit microcontroller is a single-chip computer built around an 8-bit data path and a Harvard RISC core. Within the broader semiconductor taxonomy it sits below 16-bit and 32-bit MCUs and above fixed-function logic. PIC microcontrollers from Microchip are widely used for low-power, deterministic embedded control, and the PIC16LF191xx series extends that lineage with Core Independent Peripherals (CIPs) and Intelligent Analog that allow many tasks to run without CPU intervention. The 'LF' prefix denotes the low-power 'F' core variant optimized for 1.8V-3.6V operation.
Key features include 14 KB self-programmable Flash, 1 KB SRAM, 256 bytes EEPROM, an integrated LCD driver with charge pump, a 12-bit ADC with Computation (ADC2), a 5-bit DAC, low-power comparator, zero-cross detect (ZCD), PWM, CCP, CWG (Complementary Waveform Generator), Peripheral Pin Select (PPS), Real-Time Clock/Calendar (RTCC), Windowed Watchdog Timer (WWDT), and Peripheral Module Disable (PMD) for granular power gating. The device supports up to 32 MHz internal oscillator operation.
Architecturally, the PIC16LF19185 uses Microchip's enhanced mid-range 8-bit core with a hardware multiplier, 16-level stack and 49 instruction set. Core Independent Peripherals such as the CWG, ZCD and PWM allow hardware-driven waveform generation that frees the CPU for application logic, while the ADC2 with automatic averaging and threshold comparison further reduces firmware load.
Typical applications include battery-powered LCD consumer devices, IoT sensor nodes with displays, industrial metering (gas/water/electricity), portable medical monitors with LCD readout, home automation HMI panels, and rugged low-power remote controls. The integrated LCD charge pump eliminates an external boost IC.
When designing with this part, pair the integrated LCD charge pump with low-quiescent LCD bias capacitors and use Peripheral Pin Select to remap peripherals without PCB rework. Active clock gating and PMD can lower sleep current to sub-uA levels for multi-year coin-cell operation.
This page synthesizes distributor pricing from 8 channels, drop-in compatible alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a one-stop parametric view of the PIC16LF19185-I/PT.
直接替換替代品，適用於 PIC16LF19185-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： PIC16LF19185-I/PT （相同外形與佔位） — 差異在於 DAC, Package, Program Memory (Flash), ADC, Comparators.
PIC16LF19186-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16F19185-I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16LF19176-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 →PIC16LF19175-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF19185-I/PT 最大額定值與電氣特性
| Core Architecture | PIC16 8-bit enhanced mid-range |
| CPU Speed | 32 MHz max |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data SRAM | 1 KB |
| Data EEPROM | 256 bytes |
| Operating Voltage Range | 1.8 V to 3.6 V (LF core) |
| ADC | 12-bit ADC2 (with computation) |
| DAC | 5-bit DAC |
| Comparators | Low-power comparator(s) |
| LCD Driver | Integrated with charge pump |
| PWM / CCP / CWG | PWM, CCP, Complementary Waveform Generator |
| ZCD / PPS / RTCC / WWDT | Zero-Cross Detect, Peripheral Pin Select, RTCC, Windowed WDT |
| 封裝 | 48-pin TQFP (7x7 mm) |
| 工作溫度範圍 | -40C to +85C (Industrial) |
| RoHS 狀態 | Compliant |
| MSL 等級 | 3 |
PIC16LF19185-I/PT 48-pin tqfp (7x7 mm) 腳位配置指南
PIC16LF19185-I/PT（48-pin tqfp (7x7 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： PIC16LF19185-I/PT.
請參閱 資料表 以查看完整腳位配置。
典型應用
PIC16LF19185-I/PT 適用於 6 應用s: Battery-Powered LCD Metering, IoT Sensor Node with LCD HMI, Industrial Control HMI Panel, Portable Medical Monitor with LCD, Home Automation Control Panel, Automotive Aftermarket Accessory.
Battery-Powered LCD Metering
The PIC16LF19185-I/PT is purpose-built for battery-powered LCD meters: its integrated LCD charge pump drives segmented glass directly from a 1.8V-3.6V supply, eliminating the external boost converter that competitors require. With XLP sleep currents below 50 nA and the RTCC keeping time while the core sleeps, a single CR2032 coin cell can power a gas, water or electricity meter for over 10 years. The 12-bit ADC2 with computation performs autonomous temperature compensation and threshold detection, freeing the CPU for metrology math.
推薦
IoT Sensor Node with LCD HMI
For IoT sensor nodes that display readings on a small LCD, the PIC16LF19185-I/PT combines CIP-driven ADC2 sampling, hardware CWG for tone generation, and Peripheral Pin Select to route peripherals to any I/O pin - all without CPU wake-up. The PPS feature in particular lets a single PCB layout serve multiple SKUs by remapping UART, SPI or I2C to different physical pins. Sub-uA sleep currents extend battery life in environmental, agricultural and smart-home sensor applications.
推薦
Industrial Control HMI Panel
In industrial HMI panels, the PIC16LF19185-I/PT drives character or graphic LCDs while simultaneously scanning keypads, controlling PWM outputs and timing CCP events - all with deterministic 8-bit performance. The 32 MHz core delivers 8 MIPS, sufficient for menu rendering at 60 Hz refresh with margin for communication stacks. The Windowed WDT (WWDT) and CRC-accelerated Flash support IEC 60730 safety classification for white goods and industrial controllers.
推薦
Portable Medical Monitor with LCD
Medical monitors such as glucose meters, pulse oximeters and infusion pumps benefit from the PIC16LF19185-I/PT's combination of low-noise 12-bit ADC2, accurate RTCC for dosing schedules, and XLP sleep for handheld battery endurance. The 5-bit DAC supports bias generation for analog front-ends, while CWG drives piezo alarms. AES-free silicon and no connectivity radios simplify FDA documentation for Class II device submissions.
推薦
Home Automation Control Panel
Smart-home control panels - thermostats, security keypads, multi-zone HVAC remotes - rely on the PIC16LF19185-I/PT for LCD display, capacitive touch via the Peripheral Touch Controller, and ZCD-based AC zero-cross timing for triac dimming. The integrated ZCD eliminates an external opto-isolator and synchronizes PWM edges to mains zero-cross, reducing EMI on dimmable LED loads. PMD (Peripheral Module Disable) lets unused peripherals consume zero current during long idle periods.
推薦
Automotive Aftermarket Accessory
Although the PIC16LF19185-I/PT is not AEC-Q100 qualified, hobby and aftermarket automotive products (gauge clusters, alarm remotes, lighting controllers) frequently use it because of the wide -40C to +85C industrial temperature range. The CWG and PWM blocks drive LED bars and motor loads, while RTCC schedules timed events. Designs that need formal automotive qualification should migrate to the AEC-Q100 qualified PIC16F19185-Q1 or dsPIC33EP variants.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16LF19185-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 | PIC16LF19186-I/PT | PIC16F19185-I/PT | PIC16LF19176-I/PT | PIC16LF18877-I/PT | PIC16LF19175-I/PT |
|---|---|---|---|---|---|---|
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | PIC16 8-bit LF | PIC16 8-bit LF | PIC16 8-bit F | PIC16 8-bit LF | PIC16 8-bit LF | PIC16 8-bit LF |
| Flash | 14 KB | 28 KB (+100%) | 14 KB (same) | 28 KB (+100%) | 56 KB (+300%) | 14 KB (same) |
| RAM | 1 KB | 2 KB (+100%) | 1 KB (same) | 2 KB (+100%) | 4 KB (+300%) | 1 KB (same) |
| Operating Voltage | 1.8V to 3.6V | 1.8V to 3.6V | 2.3V to 5.5V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V |
| Integrated LCD Charge Pump | Yes | Yes | Yes | Yes | No | Yes |
| CIPs (CWG/ZCD/PPS) | Yes (full) | Yes (full) | Yes (full) | Yes (full) | Partial (no ZCD) | Yes (subset) |
| 1k-pc Price (USD, est.) | 1.82 | 1.92 | 1.78 | 1.92 | 2.05 | 1.78 |
主要差異化特點
- Integrated LCD charge pump at LF voltage range (對比PIC16LF18877-I/PT)
- ZCD + CWG integrated for AC line sensing (對比PIC16LF19156-I/SP)
- Balanced 14 KB Flash / 1 KB RAM at lower cost (對比PIC16LF19186-I/PT)
- Extended XLP sleep vs F-core siblings (對比PIC16F19185-I/PT)
設計說明
Use Peripheral Module Disable (PMD) to gate unused peripherals before entering sleep. Estimated: enabling all peripherals at 32 MHz draws ~6 mA while disabling everything except RTCC drops quiescent current below 50 nA. For battery life calculations on a CR2032 (220 mAh), assume 0.1% duty cycle active at 6 mA and 99.9% sleep at 50 nA to model > 10-year endurance.
Place the 0.1 uF VDD decoupling capacitor within 3 mm of the MCU VDD pin and add a bulk 10 uF tantalum or ceramic on the same rail. The LCD charge pump requires low-ESR 1 uF to 4.7 uF ceramics on VLCD1/VLCD2/VLCD3 - keep trace length under 5 mm to avoid ripple. Route the 32.768 kHz crystal traces symmetrically with a grounded guard ring to suppress EMI.
Do not assume the PIC16LF19185 is AEC-Q100 qualified - this is the industrial-grade variant; choose the PIC16F19185-Q1 suffix part for automotive designs. Also note that the LF core needs VDD >= 2.0V for Flash programming; below that threshold, ICSP writes will silently fail. Always verify the device ID register (0x30xx) after blank-check programming.
Use Peripheral Pin Select (PPS) to remap peripherals to the most PCB-friendly pins, but lock the PPS assignments in code immediately after reset and never reconfigure PPS while peripherals are active. For multi-layer PCBs, route the TQFP breakout on internal layers with via-in-pad for ground and a continuous ground pour on the top layer to suppress LCD drive noise from coupling into ADC inputs.
合規資訊
RoHS and REACH compliant per Microchip product page. Industrial grade only (-40C to +85C); choose PIC16F19185-Q1 suffix for AEC-Q100 automotive designs.
