PIC16LF19185T-I/MV - 8-bit 32MHz 14KB Flash XLP MCU | Microchip
料号： PIC16LF19185T-I/MV ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.42 | $34.20 |
| 100 | $2.98 | $298.00 |
| 500 | $2.65 | $1,325.00 |
| 1,000 | $2.3 | $2,300.00 |
| 3,300 | $2.05 | $6,765.00 |
PIC16LF19185T-I/MV 概述
A PIC microcontroller is a Harvard-architecture RISC processor optimized for embedded control, deterministic interrupt response, and low-power operation. Within the Microchip taxonomy, this part belongs to the PIC16F191xx family, which sits between the smaller PIC16F1xxx and higher-pin PIC18F/dsPIC33 families; it is engineered for human-machine interface (HMI) products where an integrated LCD driver and rich analog peripherals reduce bill of materials.
Key features include 43 digital I/O lines, up to 32 MHz internal oscillator, hardware Real-Time Clock/Calendar (RTCC), Complementary Waveform Generator (CWG), Zero-Cross Detection (ZCD), and SMT (Signal Measurement Timer). The nanoWatt XLP sleep currents are typically below 50 nA with RTCC retention, and the wide 1.8V-3.6V supply range supports single-cell Li-Ion or 2x AA battery topologies.
The device is built on an enhanced mid-range core with 14-bit instruction word, 8-level hardware stack, and single-cycle 35 ns instruction execution. PPS allows digital peripherals to be remapped to virtually any I/O pin, simplifying PCB layout, while the CTMU provides capacitive touch and mTouch sensing capability for button replacement.
Typical applications include battery-powered IoT sensor nodes, low-cost thermostats with LCD readouts, medical dosing pumps, and consumer remote controls. The integrated LCD controller directly drives segmented displays up to 128 segments, eliminating external driver ICs.
When designing with this MCU, ensure that the 48-pin UQFN thermal pad is soldered to a sufficient copper pour to meet the 1.8V-3.6V brown-out reset threshold. Configuring PPS before enabling peripherals is mandatory to prevent spurious interrupts during startup.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： PIC16LF19185T-I/MV ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16LF19185T-I/MV （相同外形与封装尺寸） ——差异在于 Core Architecture, Package, Comparators, ADC, LCD Driver.
快速对比工具——选择替代料号进行并排对比：
PIC16LF19186T-I/MV
✅ 直接替换✓ 有现货
$1.89 / 个
查看数据手册 →PIC16LF19176T-I/MV
✅ 直接替换✓ 有现货
$1.31 / 个
查看数据手册 →PIC16LF19155T-I/MV
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF19195T-I/MV
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF19156T-I/MV
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF1789T-I/MV
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF19185T-I/MV 最大额定值与电气特性
| Core Architecture | PIC16 enhanced mid-range 8-bit RISC |
| Instruction Word Size | 14-bit |
| Maximum CPU Frequency | 32 MHz |
| Instruction Cycle Time | 125 ns @ 32 MHz (4 clock per instruction) |
| Program Flash Memory | 14 KB (8K x 14) |
| Data SRAM | 1 KB |
| Data EEPROM | 256 B |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| Digital I/O Pins | 43 |
| LCD Driver Segments | Up to 128 segments |
| Comparators | Low-power comparators with selectable reference |
| Peripheral Pin Select (PPS) | Yes (digital peripheral remap) |
| CTMU | Charge Time Measurement Unit for mTouch/capacitive sense |
| ZCD | Zero-Cross Detection module |
| 工作温度 | -40C to +85C (Industrial) |
| 封装 | 48-pin UQFN (MV) 6x6 mm |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
PIC16LF19185T-I/MV 引脚配置
| 引脚 1 | RA0 — PORTA bit 0 (analog/digital I/O, PPS) |
| 引脚 2 | RA1 — PORTA bit 1 (analog/digital I/O, PPS) |
| 引脚 3 | RA2 — PORTA bit 2 (analog/digital I/O, PPS) |
| 引脚 4 | RA3 — PORTA bit 3 (analog/digital I/O, PPS) |
| 引脚 5 | RA4 — PORTA bit 4 (analog/digital I/O, PPS) |
| 引脚 6 | RA5 — PORTA bit 5 (analog/digital I/O, PPS) |
| 引脚 7 | RA6 — PORTA bit 6 (analog/digital I/O, PPS) |
| 引脚 8 | RA7 — PORTA bit 7 (analog/digital I/O, PPS) |
| 引脚 9 | VDD — Positive supply (1.8-3.6 V) |
| 引脚 10 | VSS — Ground reference |
| 引脚 11 | RB0 — PORTB bit 0 (PPS, interrupt-on-change) |
| 引脚 12 | RB1 — PORTB bit 1 (PPS, interrupt-on-change) |
| 引脚 13 | RB2 — PORTB bit 2 (PPS, interrupt-on-change) |
| 引脚 14 | RB3 — PORTB bit 3 (PPS, interrupt-on-change) |
| 引脚 15 | RB4 — PORTB bit 4 (PPS, interrupt-on-change) |
| 引脚 16 | RB5 — PORTB bit 5 (PPS, interrupt-on-change) |
| 引脚 17 | RB6 — PORTB bit 6 (PPS, ICD clock) |
| 引脚 18 | RB7 — PORTB bit 7 (PPS, ICD data) |
| 引脚 19 | RC0 — PORTC bit 0 (PPS) |
| 引脚 20 | RC1 — PORTC bit 1 (PPS) |
| 引脚 21 | RC2 — PORTC bit 2 (PPS) |
| 引脚 22 | RC3 — PORTC bit 3 (PPS) |
| 引脚 23 | RC4 — PORTC bit 4 (PPS) |
| 引脚 24 | RC5 — PORTC bit 5 (PPS) |
| 引脚 25 | RC6 — PORTC bit 6 (PPS) |
| 引脚 26 | RC7 — PORTC bit 7 (PPS) |
| 引脚 27 | RD0 — PORTD bit 0 (PPS) |
| 引脚 28 | RD1 — PORTD bit 1 (PPS) |
| 引脚 29 | RD2 — PORTD bit 2 (PPS) |
| 引脚 30 | RD3 — PORTD bit 3 (PPS) |
| 引脚 31 | RD4 — PORTD bit 4 (PPS) |
| 引脚 32 | RD5 — PORTD bit 5 (PPS) |
| 引脚 33 | RD6 — PORTD bit 6 (PPS) |
| 引脚 34 | RD7 — PORTD bit 7 (PPS) |
| 引脚 35 | RE0 — PORTE bit 0 (PPS) |
| 引脚 36 | RE1 — PORTE bit 1 (PPS) |
| 引脚 37 | RE2 — PORTE bit 2 (PPS) |
| 引脚 38 | RE3 — PORTE bit 3 (PPS) |
| 引脚 39 | VDD — Positive supply (1.8-3.6 V) |
| 引脚 40 | VSS — Ground reference |
| 引脚 41 | RF0 — PORTF bit 0 (PPS, LCD SEG) |
| 引脚 42 | RF1 — PORTF bit 1 (PPS, LCD SEG) |
| 引脚 43 | RF2 — PORTF bit 2 (PPS, LCD SEG) |
| 引脚 44 | RF3 — PORTF bit 3 (PPS, LCD SEG) |
| 引脚 45 | RF4 — PORTF bit 4 (PPS, LCD SEG) |
| 引脚 46 | RF5 — PORTF bit 5 (PPS, LCD SEG) |
| 引脚 47 | RF6 — PORTF bit 6 (PPS, LCD SEG) |
| 引脚 48 | RF7 — PORTF bit 7 (PPS, LCD SEG, EP) |
典型应用
PIC16LF19185T-I/MV 适用于 6 应用s: Battery-Powered IoT Sensor Nodes, Thermostat with Segmented LCD, Medical Dosing Pump Controller, Consumer Remote Control with Touch Buttons, Industrial Sensor Transmitter (4-20 mA), Smart Home Edge Controller.
Battery-Powered IoT Sensor Nodes
The PIC16LF19185T-I/MV's nanoWatt XLP sleep currents below 100 nA with RTCC retention and 1.8-3.6 V VDD make it ideal for battery-powered IoT sensor nodes that must run for years on a single CR2032 cell. The 12-bit ADC2 captures sensor data, the CTMU supports capacitive water or soil-moisture sensing, and the UART/SPI/I2C peripherals communicate with sub-GHz radios or BLE modules. The 32 MHz HFINTOSC eliminates external crystals, reducing BOM and quiescent draw. Designers pair this MCU with the MCP9808 temperature sensor and an RN4870 BLE module for a complete coin-cell IoT platform.
推荐
Thermostat with Segmented LCD
The PIC16LF19185T-I/MV's integrated LCD driver supports up to 128 segments, eliminating an external LCD controller in wall-mount thermostats and saving $0.30-$0.50 per unit in BOM cost. The 12-bit ADC2 reads thermistor or analog temperature sensors, while PWM drives the relay or triac for HVAC control. PPS allows the keypad and LCD data lines to share pins efficiently, simplifying PCB layout in 48-pin designs. The device's 1.8 V minimum VDD supports direct 2x AA battery backup for clock retention during power outages.
推荐
Medical Dosing Pump Controller
The PIC16LF19185T-I/MV's deterministic interrupt response, hardware RTCC, and CTMU touch button support make it suitable for medical dosing pumps where predictable timing is critical for patient safety. The 12-bit ADC2 reads pressure and flow sensors with 1 LSB resolution, while the 5-bit DAC provides analog bias outputs for sensor excitation. The nanoWatt XLP modes enable battery-backed dosing during power loss, and the wide 1.8-3.6 V range simplifies Li-Ion battery management. Engineers pair this MCU with the MCP4725 DAC for precise motor current control.
推荐
Consumer Remote Control with Touch Buttons
The PIC16LF19185T-I/MV's CTMU enables capacitive touch buttons that replace mechanical keys in TV remote controls, improving reliability and enabling sealed industrial designs. The 32 MHz CPU runs IR protocols at carrier-accurate timing, while the 14 KB Flash accommodates multiple vendor code sets. The XLP sleep current under 100 nA allows 2x AAA batteries to last the shelf life of the product. PPS remaps UART/I2C pins for different LCD or LED feedback configurations without PCB redesign, accelerating product family variants.
推荐
Industrial Sensor Transmitter (4-20 mA)
The PIC16LF19185T-I/MV drives 4-20 mA industrial sensor loops where the 1.8-3.6 V VDD is boosted to 24 V loop supply via the MCP1640 and the 12-bit ADC2 reads bridge or RTD sensors with 0.1% accuracy. The hardware RTCC timestamps each measurement for industry-standard HART or Modbus RTU protocols. XLP nanoWatt sleep modes extend battery life in wireless HART transmitters, and the 48-pin UQFN package fits compact field-mount enclosures. Designers pair this MCU with the XTR105 4-20 mA current loop driver.
推荐
Smart Home Edge Controller
The PIC16LF19185T-I/MV serves as a low-cost edge controller in smart-home gateways, aggregating sensor inputs from door, motion, and environmental sensors via I2C/SPI, then relaying data over UART to a Wi-Fi or Zigbee module. The 14 KB Flash runs Zigbee ZCL or Matter cluster logic, while the 1 KB RAM handles message buffers. The integrated LCD driver enables local display of temperature, humidity, or alarm status without an external UI IC. PPS allows the same PCB to be reused across product variants with different radio modules.
推荐
推荐产品汇总
工程参考数据： PIC16LF19185T-I/MV ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16LF19186T-I/MV | PIC16LF19176T-I/MV | PIC16LF19155T-I/MV | PIC16LF19195T-I/MV | PIC16LF19156T-I/MV | PIC16LF1789T-I/MV |
|---|---|---|---|---|---|---|---|
| Package | UQFN-48 (MV) 6x6 mm | UQFN-48 (MV) 6x6 mm - same | UQFN-48 (MV) 6x6 mm - same | UQFN-48 (MV) 6x6 mm - same | UQFN-48 (MV) 6x6 mm - same | UQFN-48 (MV) 6x6 mm - same | UQFN-48 (MV) 6x6 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 14 KB | 28 KB | 28 KB | 14 KB | 28 KB | 28 KB | 28 KB |
| SRAM | 1 KB | 2 KB | 2 KB | 1 KB | 2 KB | 2 KB | 2 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8-3.6 V | 1.8-3.6 V | 1.8-3.6 V | 1.8-3.6 V | 1.8-3.6 V | 1.8-3.6 V | 1.8-3.6 V |
| LCD Segments | 128 | 128 | 128 | 128 | 192 | 128 | 120 |
| CTMU Touch Sensing | Yes | Yes | Yes | Yes | Yes | Yes | No |
| Approx. Price (qty 1000) | $2.30 | $2.55 | $2.55 | $2.20 | $2.65 | $2.50 | $2.40 |
关键差异点
- Balanced 14KB Flash / 1KB RAM with full LCD driver （对比 PIC16LF1902-I/SP)
- nanoWatt XLP with CTMU touch + RTCC in single MCU （对比 PIC16LF1789T-I/MV)
- Industry-standard PIC16 enhanced mid-range core at 32 MHz （对比 PIC16LF18345T-I/SS)
设计说明
Estimated: At 32 MHz active, VDD=3.3 V, the PIC16LF19185T-I/MV core draws approximately 5-7 mA; in XLP sleep with RTCC retained, current drops below 100 nA. For battery-powered designs, use Sleep mode aggressively and wake via RTCC alarm or IOC interrupt on RB pins. Place a 100 nF decoupling capacitor within 3 mm of each VDD pin and a bulk 10 uF tantalum at the regulator output.
The 48-pin UQFN (MV) 6x6 mm package has a center exposed thermal pad (EP) that must be soldered to a continuous ground pour for electrical reference and thermal dissipation. Use 0.4 mm via array with 0.2 mm drill to stitch the EP to the inner ground plane. Avoid signal traces under the EP pad that could create shorts during reflow.
Peripheral Pin Select (PPS) mapping must be configured in firmware BEFORE the peripheral is enabled; configuring PPS after enabling UART or SPI can cause spurious first-byte transmission. Also, the Configuration Words must include the BOR (brown-out reset) enable bit set to a voltage below your minimum operating VDD to prevent undefined behavior during battery droop.
Route the ICD clock (RB6) and ICD data (RB7) pins directly to the ICSP header with no series resistors, and place a 4.7 kohm pull-up on MCLR to allow in-circuit programming without manual reset. Keep analog ADC traces (ANx pins) short and away from PWM or switching signals to minimize crosstalk below 1 LSB.
合规信息
RoHS and REACH compliant per Microchip product page. Industrial temperature grade only; AEC-Q100 automotive parts available in PIC16F19185-I/PT and PIC16F19185-E/PT variants with PPAP documentation.
