PIC16F18425-E/P - 8-Bit 32MHz 14KB Flash MCU | Microchip
MPN: PIC16F18425-E/P ✓ Hoạt độngPIC16F18425-E/P Tóm tắt
An 8-bit microcontroller (MCU) is a programmable integrated circuit that combines a CPU, non-volatile program memory, volatile data memory, and on-chip peripherals in a single package. The PIC16F18425 sits within the larger taxonomy of microcontroller -> 8-bit MCU -> PIC16 family -> PIC16F184xx sub-family -> low-pin-count XLP line, optimized for cost-sensitive and battery-powered applications where eXtreme Low-Power (XLP) technology and Core Independent Peripherals (CIPs) reduce CPU wake time and active current draw.
Key features of the PIC16F18425-E/P include 32MHz internal oscillator operation, eXtreme Low-Power (XLP) technology with sleep currents in the nanoamp range, a 12-bit ADCC with up to 30 channels (depending on package), Core Independent Peripherals such as the CLC, CWG, and NCO, and integrated safety features supporting IEC 61508 SIL 2/3 functional safety-capable designs when paired with the FuSa libraries. The wide 1.8V to 5.5V operating voltage range supports both 3.3V and 5V rails.
Technically, the PIC16F18425 implements a Harvard-architecture RISC core with a 14-bit instruction word and hardware stack, achieving single-cycle execution on most instructions. The ADCC provides automated averaging, burst averaging, and threshold comparison, offloading signal-conditioning work from the CPU. The CWG can synthesize complementary PWM outputs with dead-band control, useful for half-bridge driver stages.
Typical applications include low-power IoT sensor nodes, battery-powered home automation, LED lighting controllers, white-goods and small-motor control, automotive body and interior modules, industrial sensor conditioning with analog front-end digitization, and functional-safety-related sensor interfaces. The 14-pin PDIP package simplifies breadboard prototyping and through-hole repair scenarios.
When designing with this part, choose the internal 32MHz HFINTOSC to minimize external component count and BOM cost; reserve the external oscillator pin only when USB or precise-timing peripherals require it. Confirm pin count against the chosen variant (PIC16F18424 for 8-pin, PIC16F18425 for 14-pin, PIC16F18426 for 20-pin) before laying out the PCB footprint.
This page synthesizes distributor pricing, drop-in alternatives from the PIC16F184xx family, and practical design notes that are not available on the manufacturer product page alone.
Bộ thay thế dễ dàng lắp đặt cho PIC16F18425-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 PIC16F18425-E/P (cùng hình factor và footprint) — khác nhau ở ADC, Package, Operating Temperature, Program Memory (Flash), Comparators.
PIC16F18425-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18424-I/P
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Xem tài liệu →PIC16F18424-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18325-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18325-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1825-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1825-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18425-E/P Tỷ lệ tối đa & tính chất điện
| CPU Core | PIC16 8-bit RISC |
| Tần số xung maksimum | 32 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data SRAM | 1 KB |
| Data EEPROM | 256 bytes |
| Operating Voltage Range | 1.8 V to 5.5 V |
| ADC | 12-bit ADCC, up to 30 channels (package dependent) |
| DAC | 5-bit |
| Comparators | 2 |
| PWM Channels | 2 |
| Communication | EUSART, SPI, I2C |
| Core Independent Peripherals | CLC, CWG, NCO |
| Timers | 11 (core-dependent count) |
| I/O Pins | 12 (14-pin PDIP variant) |
| Hộp | 14-pin PDIP (0.300", 7.62mm) |
| Kiểu lắp đặt | Through-Hole (THT) |
| Operating Temperature Range (E suffix) | -40C to +125C |
| XLP (eXtreme Low-Power) Technology | Yes |
| Functional Safety | FuSa-capable with Class B/SIL libraries |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16F18425-E/P
| Chân 1 | VDD — Positive supply voltage (1.8V to 5.5V) |
| Chân 2 | RA5 — I/O port A bit 5 / IOC / ADC channel |
| Chân 3 | RA4 — I/O port A bit 4 / IOC / ADC channel |
| Chân 4 | RA3/MCLR — I/O port A bit 3 / Master Clear (reset) input |
| Chân 5 | RC5 — I/O port C bit 5 / IOC / ADC channel |
| Chân 6 | RC4 — I/O port C bit 4 / IOC / ADC channel |
| Chân 7 | RC3 — I/O port C bit 3 / IOC / ADC channel / SCL |
| Chân 8 | RC2 — I/O port C bit 2 / IOC / ADC channel |
| Chân 9 | RC1 — I/O port C bit 1 / IOC / ADC channel |
| Chân 10 | RC0 — I/O port C bit 0 / IOC / ADC channel |
| Chân 11 | RA2 — I/O port A bit 2 / IOC / ADC channel |
| Chân 12 | RA1 — I/O port A bit 1 / IOC / ADC channel / DAC |
| Chân 13 | RA0 — I/O port A bit 0 / IOC / ADC channel |
| Chân 14 | VSS — Ground reference |
Ứng dụng tiêu biểu
PIC16F18425-E/P phù hợp cho 7 Áp dụngs: Battery-Powered IoT Sensor Node, Home Automation Lighting Controller, Small Motor Control / Fan Driver, Functional-Safety Sensor Interface (IEC 61508), Automotive Body and Interior Module, Industrial Sensor Conditioning with Analog Front-End, Consumer White Goods User Interface.
Battery-Powered IoT Sensor Node
The PIC16F18425-E/P's eXtreme Low-Power (XLP) technology with sub-50nA Sleep current and the 12-bit ADCC with automated threshold-comparison offload make this MCU ideal for duty-cycled battery-powered IoT sensor nodes. In a typical temperature/humidity sensing design, the device wakes every 30 seconds, samples the sensor via the ADCC averaging mode, compares against a threshold via the CLC, and returns to Sleep within 200 microseconds. The 32MHz HFINTOSC eliminates the external crystal, reducing BOM cost by ~0.20 USD per board. Powered by a CR2032, the design achieves 5+ year battery life with 1-minute reporting intervals and the EUSART driving a sub-GHz radio module such as the Microchip MRF89XA.
Được đề xuất
Home Automation Lighting Controller
The PIC16F18425-E/P's two PWM channels, 12-bit ADCC, and Core Independent Peripherals including the Complementary Waveform Generator (CWG) provide a compact controller platform for home-automation lighting including dimmable LED fixtures and RGBW strips. The CWG synthesizes complementary PWM outputs with programmable dead-band, driving a half-bridge MOSFET pair directly without glue logic. The 12-bit ADCC reads ambient light sensor and potentiometer inputs for closed-loop dimming with 4096-step resolution. With 14KB Flash, firmware can host a ZigBee Green Power or BLE-Mesh template via the EUSART, while the 14-pin PDIP package supports breadboard prototyping for maker and small-OEM builds.
Được đề xuất
Small Motor Control / Fan Driver
The PIC16F18425-E/P drives brushed DC motors and small brushless DC (BLDC) fans efficiently using its two PWM channels, two comparators, and the CWG for complementary outputs with dead-band insertion. In a 12V 1A BLDC-fan driver, the CWG and comparator-peripheral-tie form a sensorless zero-cross detector that offloads the CPU, allowing fan-RPM feedback to be processed in hardware. The 32MHz core supports a sensorless six-step commutation firmware with the 14KB Flash headroom. Industrial -40C to +125C operating range of the -E grade ensures reliability inside sealed fan housings or under-hood automotive environments.
Được đề xuất
Functional-Safety Sensor Interface (IEC 61508)
The PIC16F18425-E/P's functional-safety capability, combined with its Extended -40C to +125C temperature grade, makes it suitable for safety-related sensor signal-conditioning applications up to IEC 61508 SIL 2. With Microchip's Class B and SIL 2/3 software libraries, the MCU can self-diagnose Flash, RAM, and CPU via the on-chip CRC, plus monitor the supply via the 12-bit ADCC, providing redundant safety channels without an external watchdog. The 14KB Flash accommodates diagnostic firmware alongside the application code, and the 14-pin PDIP allows through-hole repair and easy field replacement in industrial-safety controllers.
Được đề xuất
Automotive Body and Interior Module
The PIC16F18425-E/P's Extended -40C to +125C temperature grade, AEC-Q100 readiness, and wide 1.8V-5.5V operating range qualify it for automotive body and interior modules such as seat controllers, ambient lighting, HVAC knob interfaces, and door-module sensor aggregation. The 12-bit ADCC reads thermistor inputs and rotary encoder signals, while the CWG drives LED strings and the two comparators perform over-current monitoring. LIN bus connectivity is supported via the EUSART and an external LIN transceiver such as the Microchip MCP2003B, enabling a fully automotive-grade body-control node.
Được đề xuất
Industrial Sensor Conditioning with Analog Front-End
The PIC16F18425-E/P's 12-bit ADCC with hardware averaging, threshold detection, and burst-averaging modes enables direct digitization of analog sensors such as strain gauges, thermocouples via the on-chip reference, and 4-20mA loop transmitters. The internal 32MHz HFINTOSC eliminates external oscillator drift, while the 14-pin PDIP package simplifies through-hole manufacturing for industrial PLC analog input cards. The CLC combines comparator outputs to implement window-comparator hysteresis without CPU intervention, achieving microsecond-level trip response for safety shutoff.
Được đề xuất
Consumer White Goods User Interface
The PIC16F18425-E/P's low BOM cost, through-holative DIP package, and integrated touch/temperature peripherals via the ADCC and CLC make it a strong fit for washing machines, dishwashers, microwave ovens, and other consumer white-goods user-interface boards. The 14KB Flash stores rotary-knob and button-debounce state machines plus seven-segment LED driving code, and the CLC eliminates external debounce ICs. The -40C to +125C Extended grade covers heat-shock zones such as behind a stove or dryer panel, and XLP technology supports battery-backed clock retention during power loss.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F18425-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 | PIC16F18425-I/P | PIC16F18424-I/P | PIC16F18424-E/P | PIC16F18325-I/P | PIC16F18325-E/P | PIC16F1825-I/P | PIC16F1825-E/P |
|---|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-pin PDIP | 14-pin PDIP (same) | 14-pin PDIP (same) | 14-pin PDIP (same) | 14-pin PDIP (same) | 14-pin PDIP (same) | 14-pin PDIP (same) | 14-pin PDIP (same) |
| Flash Memory | 14 KB | 14 KB | 8 KB | 8 KB | 32 KB | 32 KB | 14 KB | 14 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 2 KB | 2 KB | 1 KB | 1 KB |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) |
| ADC Resolution | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 10-bit ADC | 10-bit ADC | 10-bit ADC | 10-bit ADC |
| CIP Peripherals (CLC/CWG/NCO) | Yes | Yes | Yes | Yes | Partial (no NCO) | Partial (no NCO) | No | No |
| Functional Safety (FuSa) | Class B/SIL libraries available | Class B/SIL libraries available | Class B/SIL libraries available | Class B/SIL libraries available | Not FuSa | Not FuSa | Not FuSa | Not FuSa |
Bảo phân biệt quan trọng
- Extended -40C to +125C temperature grade (vsPIC16F18425-I/P)
- 12-bit ADCC with hardware averaging and burst-mode (vsPIC16F1825-E/P)
- Modern Core Independent Peripherals (CLC, CWG, NCO) (vsPIC16F1825-E/P)
- Functional-safety-capable with Class B/SIL libraries (vsPIC16F18325-E/P)
Ghi chú thiết kế
The PIC16F18425-E/P operates from 1.8V to 5.5V; for battery designs, place a 100nF ceramic decoupling capacitor within 5mm of the VDD pin and a 4.7uF bulk capacitor at the supply rail to handle the 32MHz core's transient current. Estimated: peak transient at 32MHz is approximately 8-10 mA, well under the 100nF capacitor's rated ripple capability. For XLP sleep applications the brown-out reset (BOR) and watchdog (WDT) must be configured for low-power Sleep mode using the CONFIG2 register to avoid ~1uA leakage.
The 14-pin PDIP through-hole package allows breadboard prototyping; however, the high-speed ADIC comparator input traces should be kept short (under 25mm) and routed away from PWM and EUSART traces to minimize capacitive coupling. Place the ICSP/ICD connector footprint on the PCB even for production units - this allows firmware updates and in-circuit debug without board rework. Decouple the MCLR pin with a 100nF capacitor to VDD if in-system reset reliability matters.
When sampling the 12-bit ADCC at full 100 ksps throughput, add a 2nd-order RC anti-aliasing filter with cutoff at 50kHz. The ADCC input leakage is specified under 5nA; ensure the source impedance is below 10kohm to avoid gain error. Use the internal FVR (Fixed Voltage Reference) of 1.024V/2.048V/4.096V instead of VDD as the ADC reference for ratiometric measurements of sensors with VDD-excursion.
Do not enable the MCLR function on RA3 unless external reset is required; disabling MCLR frees RA3 as a general I/O with IOC. Confirm the CONFIG1 LVP (Low-Voltage Programming) bit is disabled for production to free the RB5/RA5 pin as an I/O. When migrating from PIC16F1825 (older generation) to PIC16F18425, the ADCC register map changed - firmware must be recompiled with the new MPLAB XC8 device header.
Thông tin tuân thủ
AEC-Q100 qualified per Microchip automotive-grade product portfolio. Functional-safety (IEC 61508 SIL 2/3) capability via Class B/SIL software libraries, with separate documentation available from Microchip FuSa team.
