PIC16F18445-E/P - 14KB Flash 8-bit MCU, 32MHz, 20-PDIP | Microchip
MPN: PIC16F18445-E/P ✓ Hoạt độngPIC16F18445-E/P Tóm tắt
An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, memory, and peripherals into a single IC. The 8-bit CPU architecture processes data 8 bits at a time, which is well suited for cost-sensitive, low-power embedded control. Within the broader taxonomy, an MCU belongs to: microcontroller -> embedded processor -> semiconductor -> integrated circuit. The PIC16F18445 sits at the intersection of low-power (XLP) and functional-safety design, making it ideal for general-purpose and safety-critical systems.
Key features of the PIC16F18445-E/P include Core Independent Peripherals (CIPs) such as Complementary Waveform Generator (CWG), Configurable Logic Cells (CLC), 12-bit ADCC with computation, 5-bit DAC, and two PWMs. Communication peripherals include EUSART, SPI, and I2C, providing flexible connectivity. The device includes a 32MHz internal oscillator and supports up to 32kHz operation for low-power modes. It is rated for the enhanced (-E) temperature range of -40C to +125C, suitable for industrial environments.
The PIC16F18445-E/P utilizes Microchip's enhanced mid-range 8-bit core with a 14-bit instruction set, providing 8K x 14 words of program memory. The integrated XLP technology enables nanoWatt sleep modes with current consumption below 50 nA in deep sleep. The 12-bit ADC with computation automates averaging, filtering, and threshold comparison, reducing firmware overhead and improving real-time responsiveness.
Typical applications include industrial sensor nodes, battery-powered IoT devices, home automation controllers, automotive body electronics (non-safety), LED lighting controllers, and low-power remote controls. The combination of XLP, Functional Safety, and rich analog peripherals allows a single device to replace multiple discrete components.
When designing with this MCU, ensure proper decoupling (100nF + 10uF) near the VDD pin and use the ICSP programming interface for in-circuit firmware updates. The -E temperature grade supports industrial operation but is not AEC-Q100 qualified; choose the -EQ automotive variant for vehicle applications.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16F18445-E/P — 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 PIC16F18445-E/P (cùng hình factor và footprint) — khác nhau ở Package, ADC, Operating Temperature, Program Memory (Flash), Comparators.
PIC16F18444-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18426-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18425-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18345-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18344-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18445-E/P Tỷ lệ tối đa & tính chất điện
| Core | PIC16 8-bit enhanced mid-range |
| Program Memory (Flash) | 14 KB (8K x 14) |
| RAM | 1 KB |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| ADC | 12-bit ADCC with computation |
| DAC | 5-bit DAC |
| PWM Channels | 2 x PWM |
| Comparators | Yes |
| CWG (Complementary Waveform Generator) | Yes |
| CLC (Configurable Logic Cells) | Yes |
| Communication | EUSART, SPI, I2C |
| Hộp | 20-PDIP (0.300 inch, 7.62 mm) |
| Kiểu lắp đặt | Through-Hole |
| Nhiệt độ hoạt động | -40C to +125C (Enhanced, -E grade) |
| Low-Power Technology | XLP (eXtreme Low-Power) |
| Functional Safety | FuSa capable |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 1 (not moisture sensitive - through-hole) |
Cấu hình chân PIC16F18445-E/P
| Chân 1 | /MCLR — Master Clear (Reset) input, active low |
| Chân 2 | RA0 — Digital I/O / analog input |
| Chân 3 | RA1 — Digital I/O / analog input |
| Chân 4 | RA2 — Digital I/O / analog input |
| Chân 5 | RA3 — Digital I/O / analog input |
| Chân 6 | RA4 — Digital I/O / analog input |
| Chân 7 | RA5 — Digital I/O / analog input |
| Chân 8 | RA6 — Digital I/O / analog input |
| Chân 9 | RA7 — Digital I/O / analog input |
| Chân 10 | VSS — Ground reference |
| Chân 11 | RB0 — Digital I/O / interrupt-on-change |
| Chân 12 | RB1 — Digital I/O / interrupt-on-change |
| Chân 13 | RB2 — Digital I/O / interrupt-on-change |
| Chân 14 | RB3 — Digital I/O / interrupt-on-change |
| Chân 15 | RB4 — Digital I/O / interrupt-on-change |
| Chân 16 | RB5 — Digital I/O / interrupt-on-change |
| Chân 17 | RB6 — Digital I/O / ICSPCLK programming |
| Chân 18 | RB7 — Digital I/O / ICSPDAT programming |
| Chân 19 | VSS — Ground reference |
| Chân 20 | VDD — Positive supply voltage |
Ứng dụng tiêu biểu
PIC16F18445-E/P phù hợp cho 6 Áp dụngs: Industrial Sensor Node, Battery-Powered IoT Device, Home Automation Controller, LED Lighting Controller, Automotive Body Electronics (Non-Safety), Functional Safety Sensor Interface.
Industrial Sensor Node
The PIC16F18445-E/P is well suited for industrial sensor nodes due to its 12-bit ADCC with computation and XLP nanoWatt sleep modes. The 14KB Flash holds Modbus RTU or IO-Link stack plus sensor conditioning firmware, while 1KB RAM handles packet buffering. The -40C to +125C industrial temperature grade and 32MHz speed enable 4-20mA loop-powered transmitter designs. Typical use: condition a thermocouple or RTD, run self-calibration via the on-chip DAC, and wake every second for sub-50nA average current draw.
Được đề xuất
Battery-Powered IoT Device
For battery-powered IoT end nodes, the PIC16F18445-E/P's XLP technology delivers sub-50nA deep-sleep current, enabling multi-year coin-cell operation. The device runs 1.8V to 5.5V, compatible with single LiSOCl2 cells or 2xAA alkaline packs. The 32MHz internal oscillator eliminates external crystals, reducing BOM cost. EUSART/SPI/I2C peripherals connect to sub-GHz transceivers like the MRF89XA or LoRa modules. The CWG and CLC CIPs handle timing-critical signaling without CPU wake-up, preserving battery life.
Được đề xuất
Home Automation Controller
The PIC16F18445-E/P fits home automation hub/slave designs with its rich peripheral set: 12-bit ADCC for analog sensor inputs (light, humidity, temperature), CWG for dimmable LED drivers, and 5-bit DAC for setpoint outputs. The 14KB Flash comfortably holds ZigBee or Matter client stacks for sub-1W wall switches. The CLC lets designers create custom logic for button debouncing, zero-cross detection, and triac control without CPU overhead, reducing firmware complexity and improving response latency.
Được đề xuất
LED Lighting Controller
The PIC16F18445-E/P is ideal for LED lighting drivers thanks to its on-chip Complementary Waveform Generator (CWG) for half-bridge/full-bridge LED drive, 12-bit ADCC for color-mixing feedback, and 5-bit DAC for dimming setpoints. The PWM outputs support DMX512 or DALI protocols with high-resolution dimming (>1000:1). The 1.8V to 5.5V range accommodates both 3.3V logic and direct 5V supply rails. The CLC automates fault detection (open/short LED), enabling failsafe luminaire designs.
Được đề xuất
Automotive Body Electronics (Non-Safety)
For non-safety automotive body applications such as interior lighting controllers, seat heaters, and mirror adjusters, the PIC16F18445-E/P's -E temperature grade handles -40C to +125C cabin and under-hood environments. The 14KB Flash holds CAN-capable firmware (with external MCP2515 CAN controller) or LIN node stacks. The 12-bit ADC monitors current sensing for short-circuit protection. Note: for safety-critical (airbag, ABS, ADAS) applications, choose AEC-Q100 qualified PIC18 or dsPIC33 variants instead.
Được đề xuất
Functional Safety Sensor Interface
The PIC16F18445-E/P's Functional Safety (FuSa) capability supports IEC 61508 SIL-2 capable sensor interface designs when used with appropriate firmware architecture. The on-chip 12-bit ADCC with oversampling and the CLC for hardware-based diagnostics enable fault-detection mechanisms. The XLP technology provides redundant power monitoring via the BOR and watchdog timer. Paired with dual-redundant sensor inputs, this MCU forms the core of safety-instrumented systems for process control and machine safety.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F18445-E/P — 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 | PIC16F18444-I/P | PIC16F18426-E/P | PIC16F18425-E/P | PIC16F18345-E/P | PIC16F18344-E/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-PDIP | 20-PDIP - same | 20-PDIP - same | 20-PDIP - same | 20-PDIP - same | 20-PDIP - same |
| Flash Memory | 14 KB | 7 KB (-50%) | 28 KB (+100%) | 14 KB (same) | 14 KB (same) | 7 KB (-50%) |
| Max CPU Speed | 32 MHz | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) |
| Operating Voltage | 1.8V to 5.5V | 1.8V to 5.5V (same) | 1.8V to 5.5V (same) | 1.8V to 5.5V (same) | 1.8V to 5.5V (same) | 1.8V to 5.5V (same) |
| Functional Safety (FuSa) | Yes | No | Yes | No | No | No |
| Temperature Grade | -40C to +125C (-E) | -40C to +85C (-I) | -40C to +125C (-E) | -40C to +125C (-E) | -40C to +125C (-E) | -40C to +125C (-E) |
Bảo phân biệt quan trọng
- Functional Safety (FuSa) support at this Flash density level (vsPIC16F18444-I/P)
- Higher Flash density with same 20-PDIP footprint (vsPIC16F18426-E/P)
- CIPs include CWG and CLC for hardware state machines (vsPIC16F18345-E/P)
Ghi chú thiết kế
Place a 100nF ceramic decoupling capacitor as close as possible to the VDD pin (pin 20) with the ground return via a short trace to VSS (pin 19). Add a bulk 10uF capacitor at the supply rail entry point. For battery-powered designs, the PIC16F18445-E/P's deep-sleep current drops below 50nA with the ADC and peripherals off; use the RTC and WDT for periodic wake-up. Never leave the MCLR pin floating - tie to VDD through a 10k resistor or drive actively.
Do not confuse the -E temperature grade (-40C to +125C) with -I (-40C to +85C). Industrial designs must specify -E. When migrating from PIC16F18444 (7KB Flash) to PIC16F18445 (14KB Flash), confirm linker scripts accommodate the larger Flash and the additional CIP configuration registers. Configuration bits (CONFIG1 through CONFIG5) must be set explicitly - leaving them at default can disable the MCLR pin or select an unsupported oscillator mode.
The 20-PDIP package has 2.54mm (100 mil) pin pitch with 0.6mm pin width, compatible with standard 0.1 inch prototype boards. Keep high-current traces (LED drive, motor control) away from the ICSP programming pins (RB6/RB7) to prevent programming noise. The CWG outputs on this device can drive complementary MOSFETs directly but require dead-band configuration to prevent shoot-through. Route analog and digital grounds separately, joining at a single point near the MCU VSS pin.
Thông tin tuân thủ
RoHS compliant per Microchip product documentation. Not AEC-Q100 qualified - the -E temperature grade is industrial (-40C to +125C), not automotive. For AEC-Q100 qualified variants, look at the PIC16F18445-EQ or PIC18F automotive equivalents. Conflict-minerals compliance per Microchip corporate policy.
