PIC18LF25K83-I/SO - 64MHz 8-bit XLP MCU, 32KB Flash, 28-SOIC
부품 번호: PIC18LF25K83-I/SO ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.66 | $2.66 |
| 10 | $2.34 | $23.40 |
| 100 | $1.9 | $190.00 |
| 500 | $1.71 | $855.00 |
| 1,000 | $1.55 | $1,550.00 |
PIC18LF25K83-I/SO 개요
An 8-bit microcontroller (MCU) is a single-chip computer that combines a CPU, non-volatile program memory (Flash), volatile data memory (SRAM), and on-chip peripherals such as timers, ADCs, and communication controllers. PIC18 devices are mid-range 8-bit MCUs in the broader PIC microcontroller family, which itself sits inside the larger class of microcontrollers under the integrated circuit (semiconductor) hierarchy. The "XLP" (eXtreme Low Power) designation indicates that this part is engineered for sleep currents in the nanoamp range, making it suitable for battery-powered and energy-harvesting designs.
Key differentiating specifications include 32 KB (16K x 16) of self-programmable Flash with high-endurance program/erase cycles, 2 KB SRAM for data, hardware CAN 2.0B controller for in-vehicle networking, and the ADC2 peripheral that automates Capacitive Voltage Divider (CVD) measurement for advanced touch sensing and signal averaging. The 64 MHz internal oscillator (16 MIPS instruction throughput) eliminates the need for an external crystal in many applications.
Architecturally, the device uses an enhanced Harvard RISC core with a hardware multiplier, supporting C-friendly assembly with linear program/data addressing and a priority interrupt controller with hardware context save/restore. The ADC2 block adds dedicated computation hardware that offloads filter math from the CPU, a significant advantage in motor control and sensor acquisition loops.
Typical applications include automotive body and CAN node controllers, industrial sensor signal conditioning with capacitive touch, low-power IoT edge nodes with CAN connectivity, battery-powered instrumentation with capacitive user interfaces, and small home appliances requiring a reliable 8-bit controller with on-chip CAN.
When designing with this part, plan I/O assignments carefully because several peripherals (CAN, I2C, SPI, UART) share pins across multiple port pins, and the ADC2 channel count depends on package pin-out. Decoupling VDD with a 100 nF ceramic capacitor placed within 5 mm of the pin is recommended for robust CAN and ADC2 performance.
This page synthesizes distributor pricing, 28-SOIC drop-in alternates, and practical design notes not found in the manufacturer datasheet.
드롭인 대체품: PIC18LF25K83-I/SO — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC18LF25K83-I/SO (동일 폼 팩터 및 풋프린트) — 차이점: Package, ADC, Timers, Core Architecture, Family.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC18F25K83-I/SO
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC18LF25K83-E/SO
✅ 드롭인✓ 재고 있음
$1.49 / 개
데이터시트 보기 →PIC18LF26K83-I/SO
✅ 드롭인✓ 재고 있음
$2.04 / 개
데이터시트 보기 →PIC18LF25K83-I/SO 최대 정격 & 전기적 특성
| Family | PIC18 XLP 18K |
| Core | 8-bit PIC18 enhanced Harvard RISC |
| Maximum CPU Frequency | 64 MHz |
| Program Memory (Flash) | 32 KB (16K x 16) |
| Data Memory (SRAM) | 2 KB |
| Data EEPROM | 1 KB |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| 동작 온도 | -40C to +85C (Industrial, "I") |
| ADC | 12-bit with Computation (ADC2), multiple channels |
| CAN | 1 x CAN 2.0B controller |
| Serial Interfaces | UART, SPI, I2C |
| Timers | Multiple 8/16-bit timers with PWM |
| 패키지 | 28-pin SOIC (SO) |
| 실장 유형 | Surface Mount |
| RoHS 상태 | Compliant |
| Low-Power Feature | XLP (eXtreme Low Power) |
PIC18LF25K83-I/SO 핀 구성
| 핀 1 | MCLR/RE3 — Master Clear (reset) input or digital I/O RE3 |
| 핀 2 | RA0 — PORTA bit 0 / analog input |
| 핀 3 | RA1 — PORTA bit 1 / analog input |
| 핀 4 | RA2 — PORTA bit 2 / analog input |
| 핀 5 | RA3 — PORTA bit 3 / analog input |
| 핀 6 | RA4 — PORTA bit 4 |
| 핀 7 | RA5 — PORTA bit 5 |
| 핀 8 | VSS — Ground reference |
| 핀 9 | VDD — Positive supply voltage |
| 핀 10 | RB0 — PORTB bit 0 / interrupt-on-change |
| 핀 11 | RB1 — PORTB bit 1 / interrupt-on-change |
| 핀 12 | RB2 — PORTB bit 2 / interrupt-on-change |
| 핀 13 | RB3 — PORTB bit 3 / interrupt-on-change |
| 핀 14 | RB4 — PORTB bit 4 / interrupt-on-change |
| 핀 15 | RB5 — PORTB bit 5 / interrupt-on-change |
| 핀 16 | RB6 — PORTB bit 6 / ICDCLK |
| 핀 17 | RB7 — PORTB bit 7 / ICDDAT |
| 핀 18 | RC0 — PORTC bit 0 |
| 핀 19 | RC1 — PORTC bit 1 |
| 핀 20 | RC2 — PORTC bit 2 |
| 핀 21 | RC3 — PORTC bit 3 / SCL |
| 핀 22 | RC4 — PORTC bit 4 / SDA |
| 핀 23 | RC5 — PORTC bit 5 |
| 핀 24 | RC6 — PORTC bit 6 / TX |
| 핀 25 | RC7 — PORTC bit 7 / RX |
| 핀 26 | RD0 — PORTD bit 0 |
| 핀 27 | RD1 — PORTD bit 1 |
| 핀 28 | RE0 — PORTE bit 0 |
일반적인 애플리케이션
PIC18LF25K83-I/SO 적합 용도: 6 애플리케이션s: Automotive CAN Node Controller, Capacitive Touch User Interface, Battery-Powered IoT Sensor Node, Industrial Sensor Signal Conditioning, Small Home Appliance Control, LED Lighting and Signage Controllers.
Automotive CAN Node Controller
The PIC18LF25K83-I/SO is well-suited for automotive body electronics CAN nodes due to its integrated CAN 2.0B controller and 64 MHz / 16 MIPS CPU throughput. The 32 KB Flash and 2 KB SRAM comfortably handle CANopen or J1939 stack plus local sensor processing. For AEC-Q100 qualified variants, designers select the PIC18F25K83-I/SO instead. The LF variant supports 1.8 V-5.5 V, allowing direct connection to 3.3 V or 5 V CAN transceivers such as the MCP2551 or TJA1050.
추천
Capacitive Touch User Interface
The integrated ADC2 with Capacitive Voltage Divider (CVD) support enables robust capacitive touch sensing on the PIC18LF25K83-I/SO without an external touch controller IC. The hardware computation engine offloads averaging and oversampling from the CPU, freeing cycles for system logic. With 32 KB Flash, designers can implement multiple touch buttons, sliders, or proximity sensors while maintaining low BOM cost. The XLP nanoamp sleep mode extends battery life in remote controls and IoT devices.
추천
Battery-Powered IoT Sensor Node
The PIC18LF25K83-I/SO's XLP architecture delivers sleep currents in the nanoamp range, dramatically extending battery life in wireless or intermittently active sensor nodes. Combined with the 1.8 V-5.5 V supply range, the MCU runs directly from a single Li-Ion or two AA cells without boost/buck converters. The 12-bit ADC2 with averaging enables accurate low-frequency sensor measurements, while the 32 KB Flash accommodates over-the-air (OTA) firmware update logic in connected designs.
추천
Industrial Sensor Signal Conditioning
For industrial 4-20 mA loop transmitters or PLC input modules, the PIC18LF25K83-I/SO provides the 12-bit ADC, robust UART/SPI for comms, and -40C to +85C industrial temperature range. The 64 MHz CPU executes digital filtering (IIR/FIR) on ADC samples without saturating MIPS budget. CAN connectivity allows direct integration into industrial CAN networks such as CANopen or DeviceNet. Hardware context save on interrupts ensures deterministic response for time-critical control loops.
추천
Small Home Appliance Control
Coffee machines, blenders, washing machines, and other small home appliances use the PIC18LF25K83-I/SO for cost-effective control with mixed-signal I/O. The 28-SOIC package is friendly to hand-soldering for prototypes and small-batch production. The ADC2 hardware oversampling reduces component count for temperature/humidity sensing, while multiple PWM timers drive triac-based heater control or BLDC motors via gate drivers. CAN or UART enables diagnostics and firmware updates from a service tool.
추천
LED Lighting and Signage Controllers
Architectural and stage lighting controllers benefit from the PIC18LF25K83-I/SO's multiple PWM channels, ADC2 for analog dimming inputs, and UART/DMX-512 receive capability. The 32 KB Flash stores color profiles and DMX personality configurations, while 2 KB SRAM accommodates frame buffering for small matrix displays. Operating from 1.8 V-5.5 V, the part interfaces directly with 3.3 V LED driver ICs without level translation, and the CAN bus enables networked lighting installations.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC18LF25K83-I/SO — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC18F25K83-I/SO | PIC18LF25K83-E/SO | PIC18LF26K83-I/SO | PIC18LF25K80-I/SP |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SPDIP - different footprint |
| Flash Memory | 32 KB | 32 KB | 32 KB | 64 KB | 32 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 4 KB | 2 KB |
| Supply Voltage (VDD) | 1.8 V to 5.5 V | 2.3 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
| Automotive (AEC-Q100) | No (Industrial) | Yes (AEC-Q100) | No (Extended) | No (Industrial) | No (Industrial) |
| CAN Controller | 1 x CAN 2.0B | 1 x CAN 2.0B | 1 x CAN 2.0B | 1 x CAN 2.0B | No CAN |
| CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
주요 차별점
- Integrated CAN 2.0B controller with low-voltage operation (vs PIC18LF25K80-I/SP)
- Lowest-voltage operation in K83 family (vs PIC18F25K83-I/SO)
- ADC2 hardware computation offloads filter math (vs PIC18LF25K22-I/SO)
설계 노트
The PIC18LF25K83-I/SO supports a wide 1.8 V to 5.5 V supply range, enabling direct connection to single-cell Li-Ion, 3.3 V, or 5 V rails. Place a 100 nF decoupling capacitor within 5 mm of the VDD pin, plus a bulk 10 uF capacitor on the main supply rail. For battery applications, leverage the XLP sleep modes (Doze, Idle, Sleep) with nanoamp currents to maximize battery life. Configure the BOR (Brown-Out Reset) voltage threshold to match the minimum acceptable system voltage.
Route the ICSP/ICD pins (RB6/RB7) away from high-frequency switching nodes to avoid coupling during in-circuit debugging. Place the MCLR pull-up resistor (typically 10 kOhm) close to the MCLR pin. Keep the CAN bus traces (RC6/RC7 or alternative CAN pins) short and impedance-controlled (~120 Ohm differential) per the ISO 11898 CAN physical layer. Use a ground pour on the top layer stitched with multiple vias to the bottom ground plane for thermal dissipation and EMI suppression.
Do not leave the MCLR pin floating; an external pull-up to VDD is required for proper operation. Configuration bits (fuses) must be set correctly to select the correct oscillator mode - an incorrect config can lock out further programming. ADC acquisition time must be set according to source impedance - high-impedance sources require longer acquisition and may need an external buffer. When using ADC2 for capacitive touch, ensure the CVD timing meets the recommended settling windows in the datasheet.
The CAN peripheral requires a proper transceiver (such as MCP2551 or TJA1050); the PIC18LF25K83-I/SO cannot drive a CAN bus directly. The CAN TX/RX pins on the MCU connect to the transceiver's TXD/RXD, while the bus side handles the differential signaling. Terminate the bus with 120 Ohm resistors at both ends. For SPI buses running above 5 MHz, keep traces short and matched; for I2C, use 4.7 kOhm pull-ups for standard mode and 2.2 kOhm for fast mode (400 kHz).
규정 준수 정보
RoHS compliant per Verified Electronics listing. Industrial grade (-40C to +85C); not AEC-Q100 qualified - select the F/Q1 variants for automotive applications. Halogen-free status not explicitly stated in provided data.
