PIC16F19186T-I/MV - 28KB Flash, 8-bit XLP LCD MCU | Microchip
MPN: PIC16F19186T-I/MV ✓ Hoạt độngPIC16F19186T-I/MV Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash/RAM/EEPROM), and programmable peripherals. The PIC16F19186T-I/MV belongs to the PIC16F family of 8-bit MCUs, which use a modified Harvard RISC architecture. Within the broader semiconductor hierarchy, it sits at: MCU -> 8-bit microcontroller -> embedded controller -> semiconductor device. The XLP designation indicates ultra-low-power operation, typically with sub-microamp sleep currents, making the part suitable for coin-cell and energy-harvesting designs.
Key features of the PIC16F19186T-I/MV include Core Independent Peripherals (CIPs) such as CRC/SCAN, Hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT) for functional safety, intelligent analog peripherals including a 12-bit ADC with computation, and a 10-bit DAC. The integrated LCD driver supports up to 256 segments with a built-in charge pump for contrast generation, eliminating the need for an external negative voltage generator in displays powered from a single lithium cell.
The PIC16F19186T-I/MV is fabricated on a low-power CMOS process and supports a wide operating voltage range of 1.8V to 5.5V. It includes multiple communication interfaces (I2C, SPI, EUSART with LIN support) and offers high-current I/O pins capable of directly driving LEDs and keypads. The device is supported by Microchip's MPLAB X IDE and XC8 compiler ecosystem, with extensive application libraries and code generation tools.
Typical applications include battery-powered medical devices such as glucose meters, industrial sensor transmitters with LCD readouts, consumer remote controls, electronic shelf labels, smart thermostats, and portable instrumentation. The combination of integrated LCD drive, XLP sleep currents below 1 microamp, and direct segment-drive capability makes it well-suited for human-machine interface nodes in IoT deployments.
When designing with this MCU, allocate the LCD charge pump capacitor close to the CAP pin and route the segment lines on an inner PCB layer to minimize crosstalk with high-current I/O. Verify that the maximum segment voltage does not exceed the LCD glass Vlcd rating, and use the MPLAB Code Configurator to auto-generate peripheral setup code.
Bộ thay thế dễ dàng lắp đặt cho PIC16F19186T-I/MV — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16F19186T-I/MV (cùng hình factor và footprint) — khác nhau ở Operating Temperature, ADC, Package, Program Memory (Flash), DAC.
PIC16F19186-E/MV
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PIC16F19186T-I/MV Tỷ lệ tối đa & tính chất điện
| Core | PIC16 8-bit RISC |
| Program Memory (Flash) | 28 KB (16K x 14) |
| RAM | 2 KB |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| Number of I/O Pins | 43 |
| Hộp | 48-pin UQFN (MV) 6x6 mm |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C |
| ADC | 12-bit with computation |
| DAC | 10-bit |
| LCD Driver | Integrated with charge pump, up to 256 segments |
| Communication Interfaces | I2C, SPI, EUSART (LIN-capable) |
| Low-Power Features | XLP with <1 uA sleep current, Idle/Doze modes |
| Safety Peripherals | CRC/SCAN, Hardware Limit Timer (HLT), WWDT |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16F19186T-I/MV
| Chân 1 | RA0 — Bidirectional I/O / analog / segment |
| Chân 2 | RA1 — Bidirectional I/O / analog / segment |
| Chân 3 | RA2 — Bidirectional I/O / analog / segment |
| Chân 4 | RA3 — Bidirectional I/O / analog / segment (input-only) |
| Chân 5 | RA4 — Bidirectional I/O / analog / segment |
| Chân 6 | RA5 — Bidirectional I/O / analog / segment |
| Chân 7 | RA6 — Bidirectional I/O / segment |
| Chân 8 | RA7 — Bidirectional I/O / segment |
| Chân 9 | VSS — Ground reference |
| Chân 10 | RA8 — Bidirectional I/O / segment |
| Chân 11 | RA9 — Bidirectional I/O / segment |
| Chân 12 | RA10 — Bidirectional I/O / segment |
| Chân 13 | RA11 — Bidirectional I/O / segment |
| Chân 14 | RA12 — Bidirectional I/O / segment |
| Chân 15 | RA13 — Bidirectional I/O / segment |
| Chân 16 | RA14 — Bidirectional I/O / segment |
| Chân 17 | RA15 — Bidirectional I/O / segment |
| Chân 18 | VSS — Ground reference |
| Chân 19 | VDD — Positive supply voltage |
| Chân 20 | RA16 — Bidirectional I/O / segment |
| Chân 21 | RC0 — Bidirectional I/O / segment |
| Chân 22 | RC1 — Bidirectional I/O / segment |
| Chân 23 | RC2 — Bidirectional I/O / segment |
| Chân 24 | RC3 — Bidirectional I/O / segment |
| Chân 25 | RC4 — Bidirectional I/O / segment |
| Chân 26 | RC5 — Bidirectional I/O / segment |
| Chân 27 | RC6 — Bidirectional I/O / segment |
| Chân 28 | RC7 — Bidirectional I/O / segment |
| Chân 29 | RC8 — Bidirectional I/O / segment |
| Chân 30 | RC9 — Bidirectional I/O / segment |
| Chân 31 | RC10 — Bidirectional I/O / segment |
| Chân 32 | RC11 — Bidirectional I/O / segment |
| Chân 33 | RC12 — Bidirectional I/O / segment |
| Chân 34 | RC13 — Bidirectional I/O / segment |
| Chân 35 | VSS — Ground reference |
| Chân 36 | RD0 — Bidirectional I/O / segment |
| Chân 37 | RD1 — Bidirectional I/O / segment |
| Chân 38 | RD2 — Bidirectional I/O / segment |
| Chân 39 | RD3 — Bidirectional I/O / segment |
| Chân 40 | RD4 — Bidirectional I/O / segment |
| Chân 41 | RD5 — Bidirectional I/O / segment |
| Chân 42 | RD6 — Bidirectional I/O / segment |
| Chân 43 | RD7 — Bidirectional I/O / segment |
| Chân 44 | RE0 — Bidirectional I/O / segment |
| Chân 45 | RE1 — Bidirectional I/O / segment |
| Chân 46 | RE2 — Bidirectional I/O / segment |
| Chân 47 | RF0 — Bidirectional I/O / segment |
| Chân 48 | RF1 — Bidirectional I/O / segment / CAP for LCD charge pump |
| Chân 49 | EP — Exposed thermal pad - must be soldered to PCB ground plane |
Ứng dụng tiêu biểu
PIC16F19186T-I/MV phù hợp cho 6 Áp dụngs: Battery-Powered Glucose Meter, Industrial Sensor Transmitter with LCD, Electronic Shelf Label (ESL), Smart Thermostat, Portable Blood Pressure Monitor, HVAC Control Keypad with LCD.
Battery-Powered Glucose Meter
The PIC16F19186T-I/MV is well matched to handheld glucose meters where 28KB Flash stores measurement firmware and 2KB RAM buffers calibration curves, while 256B EEPROM retains user settings across battery swaps. The integrated LCD charge pump drives 128-segment glass directly from a single CR2032 cell at 3V, eliminating the external negative bias rail that competing designs require. Sub-1uA XLP sleep current extends battery life to multi-year standby, and the 12-bit ADC with computation averages the electrochemical sensor signal without CPU wakeup.
Được đề xuất
Industrial Sensor Transmitter with LCD
In 4-20mA loop-powered or wireless industrial transmitters, the PIC16F19186T-I/MV combines its 12-bit ADC for sensor digitization with the integrated LCD driver for local readout of process variables. The Core Independent Peripherals (CIPs) such as the Hardware Limit Timer and CRC/SCAN run autonomously, freeing the CPU for Modbus or HART protocol stacks. The 43 GPIO drives 4-20mA current loop interfaces, keypad inputs, alarm LEDs, and up to 256 LCD segments simultaneously, while the -40C to +85C industrial temperature range handles factory-floor environments.
Được đề xuất
Electronic Shelf Label (ESL)
Electronic shelf labels in retail IoT deployments benefit from the PIC16F19186T-I/MV's integrated LCD charge pump driving bistable or segment glass from a single coin cell. The XLP sleep current below 1 microamp enables battery life measured in years, and 43 GPIO multiplex across many ESL display variants without external drivers. The EUSART with LIN support, plus I2C and SPI, lets the same MCU connect to sub-GHz wireless modules such as the MRF89XA for central price-update broadcasts. 28KB Flash accommodates price-update firmware plus OTA bootloaders.
Được đề xuất
Smart Thermostat
The PIC16F19186T-I/MV integrates the LCD readout, temperature sensing, and user interface control that smart thermostats require, in a single 48-pin UQFN. The 12-bit ADC with computation interfaces directly with NTC thermistors, while the integrated charge pump drives a 128-segment LCD that displays setpoint, current temperature, and operating mode. WWDT and CRC/SCAN peripherals add functional safety required by HVAC certification standards. Multiple EUSART/I2C/SPI channels support Wi-Fi/BLE co-processor modules and HVAC control relays.
Được đề xuất
Portable Blood Pressure Monitor
Portable medical blood pressure monitors benefit from the PIC16F19186T-I/MV's combination of 12-bit ADC, integrated LCD with charge pump, and XLP low-power modes. The 28KB Flash accommodates blood-pressure algorithm code including cuff inflation profiles and pulse-detection firmware, while 256B EEPROM retains user history and calibration constants. The integrated LCD driver displays systolic, diastolic, and pulse rate on a multi-segment glass readout powered from two AA cells, with the charge pump generating the LCD bias from the battery voltage directly.
Được đề xuất
HVAC Control Keypad with LCD
HVAC wall-mount keypads with LCD readouts integrate well with the PIC16F19186T-I/MV, where 43 GPIO scan key matrices, drive LED backlights, and control triac outputs for fan speed and damper control. The integrated charge pump drives the multi-segment LCD that displays temperature setpoint, fan mode, and schedule information, with no external negative voltage required. CRC/SCAN and WWDT peripherals provide functional safety monitoring, while the wide 1.8-5.5V operating range supports both 3.3V and 5V system designs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F19186T-I/MV — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16F19186-E/MV | PIC16F19186-I/MV | PIC16F19186T-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-UQFN (MV) 6x6 mm | 48-UQFN (MV) - same | 48-UQFN (MV) - same | 48-TQFP (PT) - different package |
| Flash Memory | 28 KB | 28 KB | 28 KB | 28 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| LCD Driver | Integrated with charge pump | Integrated with charge pump | Integrated with charge pump | Integrated with charge pump |
| Number of I/O | 43 | 43 | 43 | 43 |
| Packaging | Tape & Reel | Tape & Reel or Tray | Tray | Tape & Reel |
Bảo phân biệt quan trọng
- Integrated LCD charge pump eliminates external negative bias rail (vsPIC16F18855-I/MV)
- Industry-leading XLP sleep current below 1 uA (vsPIC16F19176-I/PT)
- 43 GPIO on a 48-pin UQFN with maximum segment count (vsPIC16F19156-E/SP)
Ghi chú thiết kế
Estimated: The PIC16F19186T-I/MV in UQFN-48 (MV) 6x6 mm has a typical theta_JA of approximately 30 C/W when the exposed pad (EP) is soldered to a PCB ground plane with thermal vias. With internal power consumption of approximately 10-15 mW active at 32MHz and 1.8-5.5V, the junction-to-ambient temperature rise is negligible (under 1C). The EP pad is the primary heat path - per the Microchip datasheet, failure to solder the EP will raise junction temperature by approximately 15C and reduce long-term reliability. Use a ground plane with at least 9 thermal vias in the EP land pattern.
Place the LCD charge pump flying capacitor (typically 0.1uF X7R ceramic) as close as possible to the CAP pin and route the LCD segment/commons lines on inner PCB layers to minimize coupling to RF or high-current signals. Decouple VDD with a 0.1uF ceramic capacitor within 5mm of the VDD pin, and add a bulk 1uF tantalum or ceramic for transient current demand during ADC conversions and LCD segment switching. Keep crystal traces short and guard them with a ground ring if external oscillator is used.
Do not exceed the absolute maximum VDD of 5.5V - the integrated LCD charge pump will generate voltages up to 2x VDD on LCD bias pins, and overvoltage can damage the glass. Configure the unused I/O pins as outputs low or inputs with internal pull-ups enabled to minimize sleep current. Do not leave the MCLR pin floating - tie it to VDD through a 10k resistor or directly for normal operation. Verify EEPROM write endurance budget (typically 100K cycles) and use wear-leveling for frequently-updated parameters.
Route the ICD/PGD and PGC programming/debug pins to a 6-pin header or test pad accessible by Microchip programmers such as PICkit 4 or MPLAB Snap. Per Microchip's development tool documentation, a 4.7k pull-up on MCLR is required for in-circuit serial programming. Place the programming header away from LCD segment traces to avoid capacitive loading during debug. Use the MPLAB Code Configurator (MCC) plugin to auto-generate peripheral initialization code, including ADC, EUSART, and LCD driver setup, reducing firmware development time by 30-50%.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Industrial temperature grade -40C to +85C; the -E variant extends to -40C to +125C. AEC-Q100 qualification not applicable for non-automotive grade.
