PIC16F18854T-I/MLVAO - 7KB Flash 32MHz 8-bit MCU | Microchip
MPN: PIC16F18854T-I/MLVAO ✓ Hoạt độngPIC16F18854T-I/MLVAO Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and peripheral interfaces onto one die. The PIC16F18854 belongs to the PIC16 XLP family, which extends the classic PIC16 mid-range architecture with Core Independent Peripherals (CIPs) such as CWG, SMT, HLT, and WWDT, plus eXtreme Low-Power (XLP) sleep modes that drop current into the nanoampere range. Within the broader taxonomy, this part is a microcontroller -> embedded controller -> CMOS logic IC -> semiconductor.
Key features include a 10-bit ADC with up to 24 channels, a 5-bit DAC, two comparators, a Complementary Waveform Generator (CWG), Signal Measurement Timer (SMT), Hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT), CRC/Scan, and multiple PWM channels. The QFN-28 package with exposed pad supports thermal performance up to 1A of internal load and provides a compact 6x6 mm footprint suitable for space-constrained designs.
The device is implemented on a low-power CMOS process with internal voltage regulation supporting 1.8V minimum core operation from a 2.3V minimum Vdd. Communication peripherals include EUSART, I2C, and SPI, enabling connectivity to sensors, displays, and host processors. The combination of CIPs and XLP allows deterministic peripheral operation without CPU intervention, a hallmark of the PIC16F1885X/7X family.
Typical applications include automotive body electronics, IoT edge sensor nodes, battery-powered instrumentation, LED lighting controllers, and consumer appliance interfaces. The "VAO" suffix designates an automotive-grade variant screened to AEC-Q100 standards for vibration, temperature, and ESD robustness.
When designing with this MCU, ensure the exposed pad is soldered to a sufficient copper pour for thermal dissipation, and follow Microchip's AN1367 PCB layout guidelines for QFN packages to maintain solder-joint reliability. The "T" suffix indicates tape-and-reel packaging for high-volume assembly.
This page synthesizes distributor pricing, automotive-grade alternatives, and CIP-focused design notes that go beyond the manufacturer datasheet to accelerate your automotive or low-power embedded design.
Bộ thay thế dễ dàng lắp đặt cho PIC16F18854T-I/MLVAO — 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 PIC16F18854T-I/MLVAO (cùng hình factor và footprint) — khác nhau ở ADC, Package, DAC, Program Memory (Flash), Core Architecture.
PIC16F18854-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18855-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18856-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18854T-E/MLVAO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F18857-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18854T-I/MLVAO Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC16 enhanced mid-range 8-bit |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| SRAM | 512 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage (Vdd) | 2.3 V to 5.5 V |
| Nhiệt độ hoạt động | -40C to +85C (industrial, "I" suffix) |
| ADC | 10-bit, up to 24 channels |
| DAC | 5-bit |
| Comparators | 2 |
| Hộp | 28-pin QFN (6x6 mm) with exposed pad |
| Kiểu lắp đặt | Surface Mount |
| Automotive Qualification | AEC-Q100 (VAO suffix) |
| Core Independent Peripherals | CWG, SMT, HLT, WWDT, CRC/SCAN |
| Communication | EUSART, I2C, SPI |
| Lead-Free / RoHS | Lead-free, RoHS compliant |
Cấu hình chân PIC16F18854T-I/MLVAO
| Chân 1 | RA5 — I/O port A bit 5 / ADC channel |
| Chân 2 | RA4 — I/O port A bit 4 / ADC channel |
| Chân 3 | RA3 — I/O port A bit 3 / ADC channel |
| Chân 4 | RA2 — I/O port A bit 2 / ADC channel |
| Chân 5 | RA1 — I/O port A bit 1 / ADC channel |
| Chân 6 | RA0 — I/O port A bit 0 / ADC channel |
| Chân 7 | VSS — Ground reference |
| Chân 8 | RA7 — I/O port A bit 7 / ADC channel |
| Chân 9 | RA6 — I/O port A bit 6 / ADC channel |
| Chân 10 | RC0 — I/O port C bit 0 |
| Chân 11 | RC1 — I/O port C bit 1 |
| Chân 12 | RC2 — I/O port C bit 2 |
| Chân 13 | MCLR — Master clear reset (active low) |
| Chân 14 | RC3 — I/O port C bit 3 |
| Chân 15 | RC4 — I/O port C bit 4 |
| Chân 16 | RC5 — I/O port C bit 5 |
| Chân 17 | RC6 — I/O port C bit 6 / TX |
| Chân 18 | RC7 — I/O port C bit 7 / RX |
| Chân 19 | VSS — Ground reference |
| Chân 20 | VDD — Positive supply voltage |
| Chân 21 | RB0 — I/O port B bit 0 / interrupt-on-change |
| Chân 22 | RB1 — I/O port B bit 1 / interrupt-on-change |
| Chân 23 | RB2 — I/O port B bit 2 / interrupt-on-change |
| Chân 24 | RB3 — I/O port B bit 3 / interrupt-on-change |
| Chân 25 | RB4 — I/O port B bit 4 / interrupt-on-change |
| Chân 26 | RB5 — I/O port B bit 5 / interrupt-on-change |
| Chân 27 | RB6 — I/O port B bit 6 / ICSPCLK |
| Chân 28 | RB7 — I/O port B bit 7 / ICSPDAT |
Ứng dụng tiêu biểu
PIC16F18854T-I/MLVAO phù hợp cho 6 Áp dụngs: Automotive Body Electronics, Battery-Powered IoT Sensor Nodes, LED Lighting Controllers, Industrial Control & Automation, Consumer Appliance Interfaces, Medical Monitoring Accessories.
Automotive Body Electronics
The PIC16F18854T-I/MLVAO is AEC-Q100 qualified, making it well-suited for body-electronics modules such as door-zone controllers, seat controllers, and mirror adjusters. Its 32 MHz CPU, 10-bit ADC with 24 channels, and CWG peripheral enable precise motor control and PWM-driven LED lighting. The Core Independent Peripherals (CIPs) like SMT and WWDT handle timing and watchdog tasks without CPU load, freeing the core for CAN/LIN communication via EUSART. The 28-QFN (6x6 mm) footprint fits compact modules, and the exposed pad supports thermal dissipation under sustained automotive ambient temperatures.
Được đề xuất
Battery-Powered IoT Sensor Nodes
The PIC16F18854T-I/MLVAO's eXtreme Low-Power (XLP) features make it ideal for battery-operated IoT sensor endpoints. Sleep currents in the nanoampere range, combined with the 10-bit ADC's ability to wake the core on threshold compare, allow multi-year coin-cell operation for wireless sensor telemetry. The 7 KB Flash accommodates small protocol stacks like Modbus or proprietary RF link layers, while the SMT peripheral handles precise pulse-width timing for ultrasonic or optical sensors. The QFN-28 package fits inside sealed IP67 enclosures common in industrial IoT deployments.
Được đề xuất
LED Lighting Controllers
The PIC16F18854T-I/MLVAO's Complementary Waveform Generator (CWG), multiple PWM channels, and 10-bit ADC enable sophisticated LED lighting control. The CWG generates dead-band-controlled complementary PWM outputs ideal for half-bridge LED drivers, while 16-bit PWM timers support smooth dimming curves down to 0.1% brightness. The 5-bit DAC provides analog reference for current-controlled LED strings. With AEC-Q100 qualification, the part is qualified for automotive interior and exterior lighting, including RGB ambient lighting and matrix headlight control modules.
Được đề xuất
Industrial Control & Automation
In industrial control applications, the PIC16F18854T-I/MLVAO delivers reliable deterministic control via its CIPs and 32 MIPS throughput. The 24-channel ADC reads multiple analog sensors (temperature, pressure, flow) while CWG and PWM drive actuators. The WWDT with windowed timing meets functional-safety requirements for non-safety-critical industrial machinery. The EUSART and I2C peripherals support Modbus RTU and IO-Link sensor communication. The QFN-28 footprint supports high-density PLC I/O modules, and XLP modes reduce panel-mount power budgets.
Được đề xuất
Consumer Appliance Interfaces
The PIC16F18854T-I/MLVAO powers user interfaces in washing machines, ovens, and HVAC thermostats. Its 10-bit ADC reads NTC temperature sensors and rotary encoder positions; PWM channels drive indicator LEDs and buzzer tones. The 512-byte SRAM handles modest UI state machines, and 7 KB Flash accommodates capacitive-touch firmware via the CVD feature of the ADC. The -40C to +85C industrial temperature range handles kitchen and laundry environments. Low sleep current supports Energy Star standby requirements for major appliances.
Được đề xuất
Medical Monitoring Accessories
Although not FDA-cleared for life-support, the PIC16F18854T-I/MLVAO suits medical accessory devices such as fitness bands, pulse-oximeter peripherals, and pill-bottle reminders. Its low sleep current extends battery life to multiple years on a single CR2032, while the SMT peripheral accurately measures optical heart-rate sensor pulse widths. The 24-channel ADC interfaces with multiple biometric sensors simultaneously. The QFN-28 footprint (6x6 mm) fits inside small wearable enclosures. The CIPs handle sensor timing without CPU wakeup, preserving battery life.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F18854T-I/MLVAO — 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 | PIC16F18854-I/ML | PIC16F18855-I/ML | PIC16F18856-I/ML | PIC16F18857-I/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN (6x6 mm) EP | 28-QFN (6x6 mm) EP - same | 28-QFN (6x6 mm) EP - same | 28-QFN (6x6 mm) EP - same | 28-QFN (6x6 mm) EP - same |
| Flash Program Memory | 7 KB | 7 KB | 14 KB | 14 KB | 28 KB |
| SRAM | 512 B | 512 B | 1 KB | 1 KB | 2 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Automotive Grade (AEC-Q100) | Yes (VAO suffix) | No (industrial only) | No (industrial only) | No (industrial only) | No (industrial only) |
| 10-bit ADC Channels | Up to 24 | Up to 24 | Up to 24 | Up to 24 | Up to 24 |
Bảo phân biệt quan trọng
- AEC-Q100 automotive qualification with same footprint as industrial variant (vsPIC16F18854-I/ML)
- Drop-in upgrade path to higher Flash densities within the same QFN-28 footprint (vsPIC16F18855-I/ML / PIC16F18856-I/ML / PIC16F18857-I/ML)
- Rich Core Independent Peripheral (CIP) set for offloading CPU work (vsPIC16F1825-I/ML)
Ghi chú thiết kế
The QFN-28 package with exposed pad (EP) requires the EP to be soldered to a copper pad on the PCB for both electrical grounding and thermal dissipation. Per Microchip application note AN1367, design at least 100 mm^2 of 1 oz copper connected to the EP. For automotive applications where the part may operate at sustained 85C ambient, the EP copper helps keep junction temperature below 125C under typical 8 MIPS loads.
Place decoupling capacitors (100 nF ceramic + 1 uF ceramic) within 3 mm of the VDD pin (pin 20) and VSS pin (pin 19). For ADC accuracy, add a 10 uF bulk capacitor at the supply rail. The QFN-28 land pattern should follow the JEDEC MO-220 standard with 0.4 mm pitch. Use Microchip's land-pattern CAD library for the exact QFN-28 EP dimensions to avoid solder-joint opens during reflow.
Configuration Word settings are critical: enable the WDT in software (not hardware) for SWDTEN control, set the LVP bit correctly for ICSP programming, and ensure the MCLRE bit matches your reset-circuit topology. Per datasheet errata, some early silicon revisions have an ADC acquisition-time limitation; use ACQT = 4 Tad minimum. Always check the latest silicon revision identifier from Microchip's product page before finalizing firmware.
For ICSP programming via ICSPCLK (RB6) and ICSPDAT (RB7), add 10 kohm pull-down resistors on both lines to prevent spurious ICSP entry during power-on. If these pins are used for general I/O, isolate them from high-frequency switching signals (PWM > 100 kHz) with a series resistor or buffer to avoid AC noise coupling into the programming interface. The MCLR pin (pin 13) requires a 10-50 kohm pull-up to VDD per datasheet recommendations.
Thông tin tuân thủ
AEC-Q100 qualified per VAO suffix. Lead-free and RoHS compliant per Microchip material declaration. Halogen-free per Microchip environmental certification. Conflict minerals compliant per Microchip's CMRT filings.
