PIC18F55Q43-E/PT - 8-Bit 64MHz 32KB Flash MCU | Microchip
부품 번호: PIC18F55Q43-E/PT ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.49 | $2.49 |
| 10 | $2.31 | $23.10 |
| 100 | $2.08 | $208.00 |
| 500 | $1.85 | $925.00 |
| 1,000 | $1.62 | $1,620.00 |
PIC18F55Q43-E/PT 개요
What is a PIC18 microcontroller? The PIC18 family is Microchip's enhanced 8-bit RISC architecture, sitting between the baseline PIC10/12/16 and the 16-bit dsPIC/PIC24 families. An 8-bit MCU executes one byte per instruction cycle, which is sufficient for cost-sensitive real-time control, sensor interfacing, and user-interface applications where deterministic timing and low power matter more than raw computational throughput.
Key features include hardware-automated capacitive touch sensing via CVD techniques built into the ADCC, vectored interrupts with selectable high/low priority and three-cycle fixed latency, and XLP (eXtreme Low Power) technology for battery-friendly designs. The 12-bit ADCC with computation offloads averaging, filtering, oversampling, and threshold detection from the CPU, freeing cycles for application logic. Six DMA channels move data between peripherals and memory without CPU intervention, enabling deterministic response in motor control and power conversion.
Typical applications include industrial sensor conditioning, IoT end nodes with capacitive touch interfaces, motor and fan control loops using the 16-bit PWMs, and low-cost user-interface panels. The extended (-40C to +125C) operating temperature and 64 MHz core make it appropriate for both commercial and industrial environments where reliability under thermal stress is required.
When designing with this MCU, leave the NRST/MCLR pin accessible for in-circuit debugging and ensure the ADCC reference voltage is properly bypassed. Use the CLCs to implement glue logic in hardware and reduce code overhead, especially when replacing discrete logic or small state machines.
This page synthesizes verified distributor pricing, drop-in PIC18 alternatives, and practical design notes beyond the manufacturer datasheet summary, structured for engineers evaluating this part for new designs and as a replacement candidate for legacy PIC18F45K22/PIC18F46K22 sockets.
드롭인 대체품: PIC18F55Q43-E/PT — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC18F55Q43-E/PT (동일 폼 팩터 및 풋프린트) — 차이점: ADC, Package, DAC, PWM, Comparators.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC18F55Q43-I/PT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC18F55Q43T-I/PT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC18F57Q43-I/PT
✅ 드롭인✓ 재고 있음
$2.19 / 개
데이터시트 보기 →PIC18F47Q43-E/PT
✅ 드롭인✓ 재고 있음
$2.32 / 개
데이터시트 보기 →PIC18F45Q43-I/P
✅ 드롭인✓ 재고 있음
$2.62 / 개
데이터시트 보기 →PIC18F55Q43-E/PT 최대 정격 & 전기적 특성
| Core Architecture | PIC18 8-bit RISC |
| Family | PIC18-Q43 (PIC18F25/45/55Q43) |
| Maximum CPU Frequency | 64 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| Data RAM | 2 KB |
| 패키지 | 48-TQFP (7x7 mm) |
| 핀 수 | 48 |
| ADC | 12-bit ADCC with Computation (automated CVD, averaging, oversampling) |
| DAC | 8-bit |
| PWM | 3 x 16-bit dual PWMs (6 PWM outputs total) |
| DMA Controllers | 6 channels |
| Comparators | Yes |
| 동작 온도 범위 | -40C to +125C (E = extended grade) |
| 실장 유형 | Surface Mount |
PIC18F55Q43-E/PT 48-tqfp (7x7 mm) 핀 구성 가이드
PIC18F55Q43-E/PT(48-tqfp (7x7 mm) 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: PIC18F55Q43-E/PT.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
PIC18F55Q43-E/PT 적합 용도: 6 애플리케이션s: Capacitive Touch User Interface, Brushless DC (BLDC) Motor Control, Industrial Sensor Conditioning Hub, IoT Edge Node with Sensor Fusion, LED Lighting and Dimming Controller, Automotive Body Electronics Module.
Capacitive Touch User Interface
The PIC18F55Q43-E/PT's 12-bit ADCC with Computation automates capacitive voltage divider (CVD) scans, enabling 10+ touch buttons or a touch slider with zero CPU overhead. With 32 KB Flash the MCU easily fits touch firmware plus a UI state machine. Six DMA channels move ADC results without interrupting the core, ensuring consistent 10 ms touch response even under heavy peripheral load. Compared with discrete touch ICs, integrating touch on the MCU reduces BOM cost and PCB area while simplifying EMI compliance.
추천
Brushless DC (BLDC) Motor Control
Three 16-bit dual PWMs generate the six commutation signals needed for a three-phase BLDC or PMSM inverter, with programmable dead-band to prevent shoot-through. The 12-bit ADCC samples phase currents and back-EMF at high speed, while DMA offloads result buffering so the CPU focuses on the FOC or trapezoidal algorithm. Operating up to 64 MHz gives roughly 16 MIPS, sufficient for sensorless control loops up to 30 kHz PWM. The extended -40C to +125C grade supports under-hood automotive and industrial motor drives.
추천
Industrial Sensor Conditioning Hub
Six DMA controllers plus the 12-bit ADCC with built-in averaging and oversampling make the PIC18F55Q43-E/PT ideal for multi-sensor conditioning in factory automation. The MCU can scan 4-8 analog sensors at sub-millisecond intervals while running a Modbus RTU or CAN bus master via UART/SPI peripherals. The 48-pin TQFP exposes enough I/O for parallel interfaces to displays, keypads, and digital sensors. CLCs implement glitch filters and timing logic in hardware, eliminating external 74HC gates.
추천
IoT Edge Node with Sensor Fusion
The PIC18F55Q43-E/PT's XLP (eXtreme Low Power) technology plus flexible peripherals make it suitable for battery-powered IoT end nodes that wake periodically to read sensors and transmit via UART, SPI, or I2C to an external radio. 2 KB RAM is sufficient for buffering sensor bursts and small communication stacks. The hardware CLCs can wake the MCU on sensor threshold crossings, reducing average current draw below 1 uA in sleep. The extended temperature grade supports outdoor IoT deployments in industrial environments.
추천
LED Lighting and Dimming Controller
Six 16-bit PWM outputs drive multi-channel LED strings with individual dimming curves and color-mixing algorithms. The 12-bit ADCC monitors LED current via sense resistors and adjusts PWM duty to maintain constant brightness despite temperature drift. DMA moves PWM update values from a color table into the PWM registers without CPU intervention, freeing the core for wireless control protocols or DMX512 reception. The 32 KB Flash fits multi-zone lighting profiles and fade animations.
추천
Automotive Body Electronics Module
The extended -40C to +125C temperature grade (E suffix) qualifies the PIC18F55Q43-E/PT for non-powertrain automotive applications such as body controllers, mirror adjusters, HVAC blend doors, and seat controllers. The 48-pin TQFP exposes CAN-ready I/O (with external transceiver) for vehicle network integration. CLCs encode LIN or CAN bus logic in hardware, reducing firmware burden. 32 KB Flash supports CAN/LIN stacks plus application logic, and six DMA channels ensure deterministic bus latency under heavy load.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC18F55Q43-E/PT — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC18F55Q43-I/PT | PIC18F55Q43T-I/PT | PIC18F57Q43-I/PT | PIC18F47Q43-E/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Pin Count | 48 | 48 | 48 | 48 | 40 (in 48-TQFP with NC) |
| Temperature Grade | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) |
| 16-bit PWM Outputs | 6 (3 dual PWMs) | 6 | 6 | 6 | 6 |
| DMA Channels | 6 | 6 | 6 | 6 | 6 |
| ADC Type | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC |
주요 차별점
- Six DMA channels integrated directly in an 8-bit MCU (vs PIC18F45K22-E/PT (no DMA))
- 12-bit ADCC with automated capacitive voltage divider (CVD) (vs PIC18F46K22-E/PT (12-bit ADC, no computation))
- Three 16-bit dual PWMs (six outputs) (vs PIC18F46K22-E/PT (multiple 10-bit PWMs))
설계 노트
The PIC18F55Q43-E/PT operates from 1.8 V to 5.5 V (verify VDD minimum against datasheet for the specific peripheral mix in use). Place a 100 nF decoupling capacitor as close as possible to each VDD pin, plus a bulk 10 uF capacitor on the main supply rail. For ADC accuracy, add a ferrite bead or pi-filter between digital VDD and AVDD to keep digital switching noise below 5 mVpp on the analog rail, per Microchip's reference design guidance in the PIC18F25/45/55Q43 datasheet section on ADC grounding.
Configuring the MCLR pin as an input without an external pull-up will leave the MCU in reset state. When using the internal oscillator, ensure the OSCTUNE and OSCCON1 registers are configured per the datasheet's oscillator tuning procedure; misconfigured PLL bits can lock the device into a non-functional state that requires ICSP recovery. For the ADCC, the computation features (averaging, oversampling) must be explicitly enabled in the ADCON registers - leaving them disabled produces raw conversion data without the documented noise reduction.
The 48-pin TQFP (7x7 mm) requires 0.5 mm pitch traces and a via-in-pad or dog-bone fanout for thermal pad connection. Place the ICSP programming header (PGx, PGCx, MCLR, VDD, GND) on the board edge or test point array for production programming. Keep high-frequency signals (PWM, oscillator traces) short and away from analog inputs to prevent coupling into ADC readings. A four-layer PCB with continuous ground plane is recommended for designs using the 16-bit PWMs at full speed.
At 64 MHz the PIC18F55Q43-E/PT dissipates roughly 50-100 mW typical depending on peripheral activity and I/O loading - well within the TQFP-48 thermal envelope for industrial environments. For closed-enclosure designs above 70C ambient, derate the CPU clock or enable peripheral scaling. The extended temperature grade (E suffix) supports junction temperatures up to +150C but requires verification of thermal resistance theta-JA for your specific PCB copper area per JEDEC EIA/JESD51 standards.
규정 준수 정보
RoHS compliance confirmed per Microchip product page. AEC-Q100 automotive qualification status not explicitly documented in the verified data - verify against Microchip's automotive-grade catalog if targeting AEC-Q100 designs. Lead-free per Microchip's standard ordering information.
