PIC16F19185-E/PT - 14KB Flash LCD MCU 48-TQFP | Microchip
MPN： PIC16F19185-E/PT ✓ 啟用中PIC16F19185-E/PT 概覽
An 8-bit microcontroller is a small computer-on-a-chip built around an 8-bit data path, executing one byte per instruction cycle. PIC microcontrollers sit in the broader hierarchy of microcontrollers -> embedded computing -> semiconductor ICs, and the PIC16F19185 belongs to the PIC16F1 enhanced mid-range family, which targets ultra-low-power (XLP) battery applications with Core Independent Peripherals (CIPs) that offload tasks from the CPU.
Key features include eXtreme Low-Power (XLP) technology with nanoWatt XLP sleep currents, an integrated LCD charge pump that supports displays up to 5V without external boost components, 12-bit ADC2 with computation, zero-cross detect (ZCD) for triac control, signal measurement timer (SMT), and configurable logic cells (CLC). High-current I/O pins capable of sourcing/sinking 100 mA directly drive LEDs and relays, reducing external driver cost and PCB area.
The architecture pairs an enhanced mid-range 8-bit core with intelligent analog peripherals and Core Independent Peripherals, allowing autonomous operation of PWM, ADC, and CWG without CPU intervention. This dual approach reduces firmware complexity, lowers active-mode power, and lets the CPU remain in sleep for longer windows, which is critical for battery lifetime and IEC 62368-1 standby compliance.
Typical applications include battery-powered LCD consumer devices, home-automation sensor panels, IoT edge nodes with displays, industrial HMI controls, and metering/timer subsystems. The integrated LCD charge pump and 100 mA I/O make it especially suited to thermostat-style products and appliance front panels.
When designing, ensure the MCU's VDD range (2.3V to 5.5V) covers battery end-of-life voltage. Decouple VDD with 100 nF and 10 uF ceramics close to the pins, and route the LCD charge-pump capacitors within 5 mm of the dedicated pins to minimize ripple on VLCD.
This page combines distributor pricing, same-package drop-in alternatives, and practical design notes that supplement the Microchip datasheet and family data brief.
直接替換替代品，適用於 PIC16F19185-E/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： PIC16F19185-E/PT （相同外形與佔位） — 差異在於 Package, Program Memory (Flash), ADC, Operating Temperature, Timers.
PIC16F19186-E/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）
PIC16F19185-E/PTVAO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F19176-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16F18877-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16F19185-E/PT 最大額定值與電氣特性
| Core Architecture | 8-bit PIC enhanced mid-range |
| Family | PIC® XLP™ 16F1 |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| SRAM | 1 KB |
| EEPROM | 256 B |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage | 2.3 V to 5.5 V |
| 封裝 | 48-TQFP (7x7 mm) |
| 安裝類型 | Surface Mount |
| LCD Driver | Integrated with charge pump |
| ADC | 12-bit ADC2 |
| DAC | 5-bit DAC |
| Comparators | Low-power comparators |
| PWM Channels | Yes (10-bit PWM) |
| Capture/Compare/PWM | CCP module |
| Waveform Generator | CWG (Complementary Waveform Generator) |
| Signal Measurement Timer | SMT |
| Zero-Cross Detect | ZCD |
| Peripheral Pin Select | PPS |
| Real-Time Clock | RTCC |
| High-Current I/O | 100 mA source/sink |
| 工作溫度 | -40C to +125C (E suffix) |
| RoHS 狀態 | Compliant |
PIC16F19185-E/PT 腳位配置
| 腳位 1 | RE3/MCLR — Digital I/O / Master Clear (reset) input |
| 腳位 2 | RA0 — Digital I/O / analog input |
| 腳位 3 | RA1 — Digital I/O / analog input |
| 腳位 4 | RA2 — Digital I/O / analog input |
| 腳位 5 | RA3 — Digital I/O / analog input |
| 腳位 6 | RA4 — Digital I/O / analog input |
| 腳位 7 | RA5 — Digital I/O / analog input |
| 腳位 8 | RA6 — Digital I/O / analog input |
| 腳位 9 | RA7 — Digital I/O / analog input |
| 腳位 10 | VSS — Ground reference |
| 腳位 11 | VDD — Positive power supply |
| 腳位 12 | RB0 — Digital I/O / interrupt-on-change |
| 腳位 13 | RB1 — Digital I/O / interrupt-on-change |
| 腳位 14 | RB2 — Digital I/O / interrupt-on-change |
| 腳位 15 | RB3 — Digital I/O / interrupt-on-change |
| 腳位 16 | RB4 — Digital I/O / interrupt-on-change |
| 腳位 17 | RB5 — Digital I/O / interrupt-on-change |
| 腳位 18 | RB6 — Digital I/O / interrupt-on-change / ICDCLK |
| 腳位 19 | RB7 — Digital I/O / interrupt-on-change / ICEDAT |
| 腳位 20 | VSS — Ground reference |
| 腳位 21 | VDD — Positive power supply |
| 腳位 22 | RC0 — Digital I/O / analog input |
| 腳位 23 | RC1 — Digital I/O / analog input |
| 腳位 24 | RC2 — Digital I/O / analog input |
| 腳位 25 | RC3 — Digital I/O / analog input |
| 腳位 26 | RC4 — Digital I/O / analog input |
| 腳位 27 | RC5 — Digital I/O / analog input |
| 腳位 28 | RC6 — Digital I/O / analog input |
| 腳位 29 | RC7 — Digital I/O / analog input |
| 腳位 30 | VSS — Ground reference |
| 腳位 31 | VDD — Positive power supply |
| 腳位 32 | RD0 — Digital I/O / LCD segment |
| 腳位 33 | RD1 — Digital I/O / LCD segment |
| 腳位 34 | RD2 — Digital I/O / LCD segment |
| 腳位 35 | RD3 — Digital I/O / LCD segment |
| 腳位 36 | RD4 — Digital I/O / LCD segment |
| 腳位 37 | RD5 — Digital I/O / LCD segment |
| 腳位 38 | RD6 — Digital I/O / LCD segment |
| 腳位 39 | RD7 — Digital I/O / LCD segment |
| 腳位 40 | VSS — Ground reference |
| 腳位 41 | VDD — Positive power supply |
| 腳位 42 | RE0 — Digital I/O / LCD segment |
| 腳位 43 | RE1 — Digital I/O / LCD segment |
| 腳位 44 | RE2 — Digital I/O / LCD segment |
| 腳位 45 | LCDBIAS0 — LCD bias reference |
| 腳位 46 | LCDBIAS1 — LCD bias reference |
| 腳位 47 | VLCD3 — LCD charge pump output |
| 腳位 48 | NC — Not connected (per datasheet) |
典型應用
PIC16F19185-E/PT 適用於 6 應用s: Battery-Powered Thermostat with LCD, Home Automation Sensor Panel, Industrial HMI Control Module, Smart Water/Gas Meter with LCD Readout, Portable Medical Monitoring Device, Appliance Front-Panel Controller.
Battery-Powered Thermostat with LCD
The PIC16F19185-E/PT's integrated LCD charge pump and nanoWatt XLP sleep currents below 50 nA make it ideal for battery-powered thermostats. The 14 KB Flash holds temperature control firmware, scheduling logic, and UI state machines, while 1 KB SRAM buffers sensor history. The 12-bit ADC2 reads thermistor or RTD sensors with 0.1C resolution when paired with proper signal conditioning. Engineers place the MCU between 2x AA cells and the LCD glass, route the on-chip charge pump to VLCD via 1 uF ceramics within 5 mm, and rely on RTCC for timekeeping without a 32 kHz crystal. This design wins for energy-harvesting or sealed-battery HVAC products targeting 5-10 year life.
推薦
Home Automation Sensor Panel
The PIC16F19185-E/PT fits home-automation sensor panels where a small LCD glass shows temperature, humidity, and air-quality readings. Its high-current 100 mA I/O directly drives status LEDs and backlight transistors without external drivers, reducing BOM cost and PCB area. PPS allows designers to remap UART, SPI, and I2C pins for cleaner PCB routing on the panel's compact 4-layer board. The ZCD peripheral detects AC line zero-cross for triac-based dimmer control of connected lighting loads. With 14 KB Flash the firmware fits Z-Stack-style sensor reporting plus on-device UI without an external RTOS, simplifying certification and shortening time to market.
推薦
Industrial HMI Control Module
The PIC16F19185-E/PT drives industrial HMI control modules with multi-segment LCD displays and rotary encoder inputs. The CWG peripheral generates complementary PWM outputs with programmable dead-band for synchronous motor control in pump and valve actuators. The SMT (Signal Measurement Timer) accurately measures pulse widths from flow meters and proximity sensors, supporting precision dosing. With 14 KB Flash the firmware fits IEC 61131-3 style state machines plus Modbus RTU slave stacks. The E temperature grade (-40C to +125C) handles factory-floor thermal stress, and the integrated LCD eliminates separate display-driver ICs reducing MTBF.
推薦
Smart Water/Gas Meter with LCD Readout
The PIC16F19185-E/PT is well-suited for smart water and gas meters because its nanoWatt XLP sleep current allows 10+ year battery life on a single D-cell while a local LCD displays consumption. The 12-bit ADC2 captures flow-sensor analog signals with 0.1% accuracy, while SMT precisely timestamps meter pulses for tariff calculation. RTCC maintains time-of-day for time-of-use billing across brownouts. With 256B EEPROM the part stores calibration constants and tamper-detection counters without external NVM. Engineers use the ZCD peripheral for tamper detection on AC-powered meters and pair the MCU with an external LoRa or NB-IoT module for remote reporting.
推薦
Portable Medical Monitoring Device
The PIC16F19185-E/PT fits portable medical monitoring devices such as pulse oximeters, glucose meters, and handheld spirometers where low power and LCD display are critical. The 12-bit ADC2 reads photodiode or electrochemical sensor signals with enough resolution for clinical-grade measurements, while the low-power comparator enables threshold detection without CPU wakeup. The integrated LCD charge pump drives segment-style LCD glass without external boost hardware, supporting compact handheld enclosures. With 14 KB Flash the firmware fits sensor algorithms plus user interface, and the XLP sleep current under 50 nA extends battery life across IEC 60601-1-8 alarm-test cycles.
推薦
Appliance Front-Panel Controller
The PIC16F19185-E/PT powers appliance front-panel controllers in washing machines, dishwashers, and ovens where a multi-segment LCD shows cycle status and timer. The ZCD peripheral synchronizes triac control of heating elements and pumps to AC line zero-cross for EMI compliance, while CCP/CWG generates complementary drive waveforms for synchronous rectification. High-current 100 mA I/O directly drives LED status indicators, buzzer drivers, and relay coils. With 14 KB Flash the firmware fits IEC 60730 Class B safety routines plus user-interface state machines. The E temperature grade handles the 85C ambient inside appliance chassis, and the integrated peripherals eliminate 3-4 external ICs in a typical design.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16F19185-E/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 | PIC16F19186-E/PT | PIC16F19185-I/PT | PIC16F19185-E/PTVAO | PIC16F19176-I/PT | PIC16F18877-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-TQFP (7x7) | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same |
| Flash Memory | 14 KB | 28 KB | 14 KB (same) | 14 KB (same) | 28 KB | 56 KB |
| SRAM | 1 KB | 1 KB (same) | 1 KB (same) | 1 KB (same) | 2 KB | 4 KB |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| LCD Charge Pump | Yes (integrated) | Yes (same) | Yes (same) | Yes (same) | Yes (same) | No (external required) |
| Temperature Grade | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | Automotive grade | -40C to +85C (I) | -40C to +85C (I) |
| Unit Price (1 pc) | $2.37 | Higher (more Flash) | Similar | Higher (auto) | Higher (more Flash) | Higher (more Flash) |
主要差異化特點
- Integrated LCD charge pump eliminates external boost hardware (對比PIC16F18877-I/PT)
- Zero-Cross Detect (ZCD) for AC line triac control (對比PIC16F18876-E/PT)
- High-current 100 mA I/O drives relays and LEDs directly (對比PIC16F19176-I/PT)
設計說明
Place a 100 nF ceramic decoupling capacitor within 3 mm of each VDD pin and a single 10 uF bulk capacitor on the main VDD rail per the Microchip PIC16F19185 datasheet power-supply recommendations. For battery applications, route VDD through a ferrite bead to suppress switching noise from the LCD charge pump, and place a 1 uF X7R capacitor directly at the VLCD3 pin to stabilize the integrated charge-pump output. Avoid sharing VDD traces with high-current I/O loads to prevent logic noise coupling.
Keep LCD segment traces short and parallel with consistent spacing to minimize capacitive imbalance and ghost-segment artifacts. Route the 32.768 kHz crystal within 5 mm of the SOSCO/SOSCI pins with a grounded guard ring to reduce stray capacitance, and place RTCC load capacitors (typically 12 pF) immediately adjacent to the crystal. The exposed thermal pad (where present on TQFP) must be soldered to a continuous ground pour to meet thermal and EMI performance targets per IPC-7351 land-pattern guidelines.
Do not exceed 5.5 V on VDD or apply reverse polarity; the PIC16F19185 lacks internal reverse-voltage protection. The MCLR pin (RE3) requires a 10 kohm pull-up to VDD for normal operation; leaving it floating prevents code execution. ICD debugging requires RB6/RB7 to remain available - do not remap these via PPS in production firmware if in-circuit debugging is needed. Note that the PIC16F19185-E/PT has only 1 KB SRAM; large look-up tables (such as Unicode fonts) must reside in Flash with PROGMEM access to avoid heap exhaustion.
合規資訊
RoHS and REACH compliant per Microchip product page. E suffix denotes extended temperature grade -40C to +125C. Not AEC-Q100 qualified by default; PIC16F19185-E/PTVAO suffix denotes automotive grade. Lead-free matte-tin finish.
