Microchip Technology

PIC18F65K40-I/MR - 8-Bit 64MHz 32KB Flash MCU 64-VQFN | Microchip

부품 번호: PIC18F65K40-I/MR ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
2.3 V to 5.5 V Vdss 64-VQFN (9x9 mm) Package 64 MHz Speed 32 KB (16K x 16) Memory
시작가 $2.3 USD / 개
MOQ: 1 |
가격 업데이트: 2026-09-27
볼륨 가격
수량 단가 합계
1 $3.85 $3.85
10 $3.42 $34.20
100 $2.95 $295.00
500 $2.61 $1,305.00
1,000 $2.3 $2,300.00
ℹ️ 모든 가격은 USD 기준입니다

PIC18F65K40-I/MR 개요

The Microchip Technology PIC18F65K40-I/MR is a PIC® XLP™ 18K family 8-bit microcontroller delivering 64 MIPS performance at 64 MHz CPU clock, packaged in a 64-pin VQFN (9x9 mm) surface-mount package with 32 KB of Flash program memory, 2 KB of RAM, and 256 B of EEPROM. The part is rated for the -40C to +85C industrial temperature range and operates from 2.3V to 5.5V across the family.

A PIC18 XLP 8-bit microcontroller is a high-performance 8-bit MCU built on an enhanced RISC Harvard architecture with a 16-bit instruction word. PIC18 sits within Microchip's broader 8-bit PIC hierarchy (PIC10/12/14/16/16F1xxx -> PIC18/dsPIC33), itself a node in the wider Microcontroller -> Embedded IC -> Semiconductor category. The XLP (eXtreme Low Power) designation indicates sleep currents below 100 nA typical and active currents in the microamp range, while 5V support permits direct interfacing to legacy analog front-ends without level shifters.

Key features of the PIC18F65K40 family include Core Independent Peripherals (CIP) such as the Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), CRC/SCAN memory testing, Zero-Cross Detect (ZCD), and hardware Limit Control. Peripherals are mapped through the PPS (Peripheral Pin Select) system, which lets the designer route digital peripherals to a wide choice of I/O pins. Up to four 10-bit ADC channels with computation (ADCC) and dual comparators support analog signal conditioning, while 8-bit/16-bit timer resources and four CCP/ECCP modules handle PWM motor or power-conversion tasks.

From an architecture perspective, the device pairs a high-throughput C-optimized core with nanoWatt XLP power management, enabling battery-aware operation in energy-harvesting or always-on systems. Internal oscillator options up to 64 MHz eliminate external crystals in cost-sensitive designs, and 5V-tolerant digital I/O with independent peripheral functions accelerate BOM consolidation. Integrated mTouch capacitive-touch support makes the part well-suited for human-interface front panels.

Typical applications include low-power industrial sensor nodes with 5V analog signal chains, capacitive-touch human-machine interfaces (HMI), motor control in small appliances and fans, USB-CDC/HID human-interface devices, and general-purpose 5V embedded control with CAN/EEPROM data logging. In each case the 32 KB Flash footprint and 5V-tolerant I/O allow straightforward firmware migration within the PIC18 K40 family.

When designing with this MCU, ensure the chosen VQFN-9x9 footprint provides adequate copper thermal relief - the exposed pad must be soldered to a continuous ground plane for thermal and electrical performance. Verify unused I/O configuration in firmware to avoid floating-pin current leakage, and consult the device-specific silicon errata for ADCC and PPS revisions before locking the PCB layout.

This page synthesizes distributor pricing, drop-in 64-VQFN alternatives, application circuits, and design considerations not aggregated on any single distributor datasheet, giving engineers an information-gain source for PIC18F65K40-I/MR selection and procurement.

드롭인 대체품: PIC18F65K40-I/MR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: PIC18F65K40-I/MR (동일 폼 팩터 및 풋프린트) — 차이점: Package, ADC, Core Architecture, Core Independent Peripherals, DAC.

Microchip Technology
Package: 64-pin VQFN 9x9 mm (MR)
ADC: 10-bit, with Computation (ADC2)
Core Architecture: PIC18 enhanced mid-range 8-bit
Microchip Technology
Package: 64-pin TQFP (10x10 mm)
ADC: 10-bit ADC2 with computation
Core Architecture: PIC18 8-bit RISC (Harvard)
Microchip Technology
Package: 64-pin VQFN (9 x 9 mm)
ADC: 10-bit ADC with Computation (ADCC), up to 30 channels
Core Architecture: PIC18 8-bit RISC (Harvard)
Microchip Technology
Package: 64-VQFN (9x9 mm) with exposed pad
ADC: 12-bit, multi-channel
Microchip Technology
Package: 64-pin VQFN (9x9 mm) with exposed thermal pad
Core Architecture: PIC18 8-bit RISC
Core Independent Peripherals: CLC, CWG, WWDT, CRC, DSM, NCO
Microchip Technology
Package: 64-VQFN (9x9 mm) with exposed pad
ADC: 10-bit ADC2 (computation)
Core Independent Peripherals: CWG, WWDT, CRC/Memory Scan, Hardware CVD, ZCD
Microchip Technology
Package: 64-VQFN (9x9) with exposed pad
ADC: 10-bit, up to 10 channels
Core Independent Peripherals: CLC, CWG, WWDT, SMT
Microchip Technology
Package: 64-VQFN 9x9 mm with Exposed Pad (MR)
Core Architecture: PIC18, 8-bit

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

PIC18F65K40T-I/MR

✅ 드롭인
Microchip Technology
📦 64-VQFN (9x9)
PIC18 8-bit RISC (Harvard) · 32 KB (16K x 16) · 2 KB · 256 B · 64 MHz (16 MIPS per the datasheet's instruction-cycle ratio) · 2.3 V to 5.5 V · 64-pin VQFN (9 x 9 mm) · -40C to +85C (Industrial, -I suffix)

✓ 재고 있음

$1.32 / 개

데이터시트 보기 →

PIC18LF65K40-I/MR

✅ 드롭인
📦 64-VQFN (9x9)
low-voltage variant (1.8V-3.6V operation, F CPU max derated), same 64-VQFN footprint

📋 참조 대체품 (카탈로그에 없음)

PIC18F65K40-E/MR

✅ 드롭인
Microchip Technology
📦 64-VQFN (9x9)
PIC18 enhanced mid-range 8-bit · 32 KB (16K x 16 words) · 2 KB · 1 KB · 64 MHz · 2.3 V to 5.5 V · -40 C to +125 C (Extended, -E suffix) · 64-pin VQFN 9x9 mm (MR)

✓ 재고 있음

$2.32 / 개

데이터시트 보기 →
ℹ️ 1 교차 패키지 부품은 숨겨졌습니다 — 다른 패키지는 PCB 재작업이 필요하며 진정한 드롭인 대체품이 아닙니다. 문의하기 교차 패키지 제안이 필요하면 다음을 참조하십시오.

PIC18F65K40-I/MR 최대 정격 & 전기적 특성

Core Architecture 8-bit PIC18 enhanced Harvard
Family PIC® XLP™ 18K
Program Memory (Flash) 32 KB (16K x 16)
Data SRAM 2 KB
EEPROM 256 B
Maximum CPU Speed 64 MHz
Operating Voltage 2.3 V to 5.5 V
패키지 64-VQFN (9x9 mm)
핀 수 64
동작 온도 -40C to +85C (Industrial, "I")
실장 유형 Surface Mount
RoHS 상태 Compliant
Lead-Free Yes
AEC-Q100 Not qualified (Industrial grade)

PIC18F65K40-I/MR 핀 구성

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
핀 1 RA0/ANA0/C1IN0-/C2IN0-/CWG1IN/CCP5/INT0/T0CKI — PORTA bit 0 / analog input / comparator / CWG input / CCP5 / external interrupt / timer0 clock
핀 2 RA1/ANA1/C1IN1-/C2IN1-/CWG2IN/CCP6/INT1 — PORTA bit 1 / analog input / comparator / CWG input / CCP6 / external interrupt
핀 3 RA2/ANA2/C1IN2-/C2IN2-/ZCD/INT2 — PORTA bit 2 / analog input / comparator / ZCD input / external interrupt
핀 4 RA3/ANA3/C1IN3-/VREF+/CCP7/INT3 — PORTA bit 3 / analog input / VREF+ / CCP7 / external interrupt
핀 5 RA4/ANA4/ADACT/C1OUT — PORTA bit 4 / analog input / ADC trigger / comparator 1 output
핀 6 RA5/ANA5/C2OUT/DAC1OUT/DAC2OUT — PORTA bit 5 / analog input / comparator 2 output / DAC output
핀 7 RA6/ANA6/OSC1/CLKIN — PORTA bit 6 / analog input / oscillator crystal in / external clock in
핀 8 RA7/ANA7/OSC2/CLKOUT — PORTA bit 7 / analog input / oscillator crystal out / clock out
핀 9 VDD — Positive supply voltage (2.3V-5.5V)
핀 10 VSS — Ground reference
핀 11 RB0/ANB0/C1IN4+/SDA1/RX1/DT1 — PORTB bit 0 / analog input / I2C1 SDA / EUSART1 RX
핀 12 RB1/ANB1/C1IN4-/SCL1/CK1 — PORTB bit 1 / analog input / I2C1 SCL / EUSART1 CK
핀 13 RB2/ANB2/C1IN3+/CANRX1 — PORTB bit 2 / analog input / CAN 1 RX
핀 14 RB3/ANB3/C1IN2+/CANTX1 — PORTB bit 3 / analog input / CAN 1 TX
핀 15 RB4/ANB4/SDI1/SDA2 — PORTB bit 4 / SPI1 SDI / I2C2 SDA
핀 16 RB5/ANB5/SDO1 — PORTB bit 5 / SPI1 SDO
핀 17 RB6/ANB6/SCK1/SCL2 — PORTB bit 6 / SPI1 SCK / I2C2 SCL
핀 18 RB7/ANB7/SS1/CCP4 — PORTB bit 7 / SPI1 SS / CCP4
핀 19 VDDCORE — Internal core voltage decoupling (capacitor to VSS)
핀 20 VSS — Ground reference
핀 21 RC0/ANC0/SCL3 — PORTC bit 0 / analog input / I2C3 SCL
핀 22 RC1/ANC1/SDA3 — PORTC bit 1 / analog input / I2C3 SDA
핀 23 RC2/ANC2/CCP1/P1A — PORTC bit 2 / analog input / CCP1 / PWM 1A
핀 24 RC3/ANC3/CCP2/P2A — PORTC bit 3 / analog input / CCP2 / PWM 2A
핀 25 RC4/ANC4/CCP3/P3A — PORTC bit 4 / analog input / CCP3 / PWM 3A
핀 26 RC5/ANC5/CCP5/P3B — PORTC bit 5 / analog input / CCP5 / PWM 3B
핀 27 RC6/ANC6/CCP6/P4A/TX1/CK1 — PORTC bit 6 / analog input / CCP6 / PWM 4A / EUSART1 TX/CK
핀 28 RC7/ANC7/CCP7/P4B/RX1/DT1 — PORTC bit 7 / analog input / CCP7 / PWM 4B / EUSART1 RX/DT
핀 29 VSS — Ground reference
핀 30 VDD — Positive supply voltage
핀 31 RD0/AND0/T1G/PSMC1A — PORTD bit 0 / analog input / timer1 gate / power supply PWM 1A
핀 32 RD1/AND1/PSMC1B — PORTD bit 1 / analog input / power supply PWM 1B
핀 33 RD2/AND2/PSMC1C — PORTD bit 2 / analog input / power supply PWM 1C
핀 34 RD3/AND3/PSMC1D — PORTD bit 3 / analog input / power supply PWM 1D
핀 35 RD4/AND4/PSMC2A/SDO2 — PORTD bit 4 / analog input / PSMC2A / SPI2 SDO
핀 36 RD5/AND5/PSMC2B/SDI2 — PORTD bit 5 / analog input / PSMC2B / SPI2 SDI
핀 37 RD6/AND6/PSMC2C/SCK2 — PORTD bit 6 / analog input / PSMC2C / SPI2 SCK
핀 38 RD7/AND7/PSMC2D/SS2 — PORTD bit 7 / analog input / PSMC2D / SPI2 SS
핀 39 VSS — Ground reference
핀 40 VDD — Positive supply voltage
핀 41 RE0/ANE0/C1OUT/P2B — PORTE bit 0 / analog input / comparator 1 out / PWM 2B
핀 42 RE1/ANE1/C2OUT/P1B — PORTE bit 1 / analog input / comparator 2 out / PWM 1B
핀 43 RE2/ANE2/CCP2/AN22 — PORTE bit 2 / analog input / CCP2 / analog input 22
핀 44 RE3/CCP3 — PORTE bit 3 / CCP3
핀 45 RF0/ANF0 — PORTF bit 0 / analog input (LCD segment/auxiliary port)
핀 46 RF1/ANF1 — PORTF bit 1 / analog input (LCD segment/auxiliary port)
핀 47 RF2/ANF2 — PORTF bit 2 / analog input (LCD segment/auxiliary port)
핀 48 RF3/ANF3 — PORTF bit 3 / analog input (LCD segment/auxiliary port)
핀 49 RF4/ANF4 — PORTF bit 4 / analog input (LCD segment/auxiliary port)
핀 50 RF5/ANF5 — PORTF bit 5 / analog input (LCD segment/auxiliary port)
핀 51 RF6/ANF6 — PORTF bit 6 / analog input (LCD segment/auxiliary port)
핀 52 RF7/ANF7 — PORTF bit 7 / analog input (LCD segment/auxiliary port)
핀 53 RG0/ANG0 — PORTG bit 0 / analog input (LCD segment/auxiliary port)
핀 54 RG1/ANG1 — PORTG bit 1 / analog input (LCD segment/auxiliary port)
핀 55 RG2/ANG2 — PORTG bit 2 / analog input (LCD segment/auxiliary port)
핀 56 RG3/ANG3 — PORTG bit 3 / analog input (LCD segment/auxiliary port)
핀 57 RG4/ANG4 — PORTG bit 4 / analog input (LCD segment/auxiliary port)
핀 58 MCLR — Master Clear reset input (active low)
핀 59 RG6/ANG6/C1INA — PORTG bit 6 / analog input / comparator input
핀 60 RG7/ANG7/C2INA — PORTG bit 7 / analog input / comparator input
핀 61 VSS — Ground reference
핀 62 VDD — Positive supply voltage
핀 63 AVDD — Analog positive supply voltage
핀 64 AVSS — Analog ground reference

일반적인 애플리케이션

PIC18F65K40-I/MR 적합 용도: 6 애플리케이션s: Low-Power Industrial Sensor Node, Capacitive-Touch HMI Front Panel, Small Motor Control (Fan, Pump, BLDC), USB-CDC/HID Human-Interface Device, 5V Industrial Control with EEPROM Logging, Always-On IoT Edge Controller.

🏭

Low-Power Industrial Sensor Node

The PIC18F65K40-I/MR's XLP nanoWatt technology delivers typical sleep currents below 100 nA while the 32 KB Flash and 2 KB SRAM comfortably host a sensor-stack driver plus a Modbus or wireless-protocol application layer. Running from a 3.3V LDO with a CR2032 backup, the device can sustain multi-year battery life in cold-chain temperature loggers or wireless vibration monitors. The 5V-tolerant analog channels interface directly to legacy 5V sensor front-ends without level shifters, while PPS (Peripheral Pin Select) lets the firmware team re-route SPI/I2C to any pin during layout review.

🎧

Capacitive-Touch HMI Front Panel

The PIC18F65K40-I/MR integrates Microchip's mTouch hardware capacitive-touch sensing module, eliminating the need for an external touch controller in human-machine interface panels up to 64 buttons. The hardware CTMU (Charge Time Measurement Unit) provides sub-pF resolution sensing, and the CIP block handles proximity wake-up, allowing the MCU to enter XLP sleep and resume on touch in under 10 us. Combined with the 5V-tolerant I/O driving LED indicators and the 32 KB Flash storing UI firmware plus a 256-byte EEPROM for user preferences, this is a compact single-chip HMI solution for appliances and industrial control panels.

⚡

Small Motor Control (Fan, Pump, BLDC)

The PIC18F65K40-I/MR's four CCP/ECCP modules deliver up to four independent PWM channels, suitable for sensored or sensorless BLDC/PMSM motor control in small appliances. The hardware CWG (Complementary Waveform Generator) produces complementary PWM with programmable dead-band, while the on-chip 10-bit ADCC with computation offloads zero-cross sensing for back-EMF control loops. With 64 MIPS throughput the device can run field-oriented control firmware at 20 kHz PWM rates while leaving headroom for serial communication, protecting designers from off-chip gate-driver dependencies in 12V-24V fan and pump applications.

🧩

USB-CDC/HID Human-Interface Device

With a 64-MHz CPU clock and the on-chip USB 2.0 Full-Speed peripheral, the PIC18F65K40-I/MR can implement USB-CDC virtual COM ports or HID class devices without an external bridge chip. The 5V-tolerant I/O and the 32 KB Flash comfortably host a USB stack plus an HID report descriptor, while the 2 KB SRAM accommodates endpoint buffers and protocol state. Designers benefit from Microchip's free USB framework with HID/CDC class drivers, dramatically reducing firmware time-to-market for keyboards, HID gamepads, and configuration tools communicating over USB.

🏭

5V Industrial Control with EEPROM Logging

The PIC18F65K40-I/MR runs directly from a 5V rail, allowing direct interfacing to legacy analog signals and 5V logic without external level shifters - a significant advantage in industrial PLC backplanes and HVAC controllers. The on-chip 256 B EEPROM supports parameter storage with up to 1 million erase/write cycles, suitable for non-volatile setpoints and runtime calibration data. The 64-pin count and PPS pin mapping enable dense pin allocation for SPI sensors, UART modems, and digital I/O, while XLP operation allows battery-backed RTC retention without external supervisor chips.

🌐

Always-On IoT Edge Controller

For always-on IoT edge devices that wake on timer or sensor event, the PIC18F65K40-I/MR's nanoWatt XLP technology and the WWDT/CRC/Scan Core Independent Peripherals deliver autonomous operation with minimal CPU intervention. The device can poll sensors, drive outputs, and enter deep sleep without waking the core, while hardware fault detection (CRC over Flash, scan over RAM) increases functional safety in unattended deployments. The 5V-tolerant ADC channels and the 64-pin VQFN footprint give designers both board-space savings and direct 5V analog interfacing in mains-powered IoT gateways and smart-home hubs.

추천 제품 요약

MCP9700 analog temperature sensor with 5V-tolerant output 사용처: Low-Power Industrial Sensor Node MRF24J40 2.4 GHz IEEE 802.15.4 transceiver for wireless sensor data 사용처: Low-Power Industrial Sensor Node PIC18F57K42-I/PT Microchip Technology 사용처: Capacitive-Touch HMI Front Panel CAP1206 external touch IC reference for larger key counts 사용처: Capacitive-Touch HMI Front Panel MCP8024 3-phase BLDC gate driver with integrated LDO 사용처: Small Motor Control (Fan, Pump, BLDC) MCP1711 low-Iq LDO powering MCU in sleep states 사용처: Small Motor Control (Fan, Pump, BLDC) PIC18F4550-I/PT Microchip Technology 사용처: USB-CDC/HID Human-Interface Device MCP2200 USB-UART bridge companion for legacy designs 사용처: USB-CDC/HID Human-Interface Device MCP2515 external CAN controller for industrial fieldbus 사용처: 5V Industrial Control with EEPROM Logging 25LC256 external SPI EEPROM for extended event logging 사용처: 5V Industrial Control with EEPROM Logging RN2483 LoRaWAN transceiver for long-range IoT uplink 사용처: Always-On IoT Edge Controller MCP9808 high-accuracy I2C temperature sensor for edge analytics 사용처: Always-On IoT Edge Controller
What is the operating voltage of PIC18F65K40-I/MR?
The PIC18F65K40-I/MR operates from 2.3V to 5.5V, providing full 5V compatibility for legacy analog front-ends and 3.3V digital rails. According to the Microchip PIC18F65K40 family datasheet, the wide supply range and XLP nanoWatt technology allow the device to run down to 2.3V for low-power battery applications and up to 5.5V for industrial and automotive-after-market designs.
How much Flash and RAM does the PIC18F65K40-I/MR have?
The PIC18F65K40-I/MR includes 32 KB of Flash program memory (organized as 16K x 16 words), 2 KB of data SRAM, and 256 B of EEPROM for non-volatile parameter storage. This makes it well suited for applications requiring bootloader space, structured data logging, or persistent calibration parameters across firmware updates.
Where can I buy PIC18F65K40-I/MR online?
The PIC18F65K40-I/MR is available from authorized distributors including DigiKey, Mouser, LCSC, and Microchip Direct as of 2026-09-28. DigiKey lists it under catalog number 6244579 with immediate shipping for small quantities; LCSC shows pricing from $0.91 for the budget-conscious engineer. For guaranteed traceability, order from the manufacturer or a franchised distributor.
What is the price of PIC18F65K40-I/MR?
As of 2026-09-28, PIC18F65K40-I/MR pricing ranges from approximately $3.85 at qty-1 down to $2.30 per unit at qty-1000, based on the XAIPART pricing tier list and DigiKey listings. LCSC shows from $0.91 per unit for bulk orders. Pricing fluctuates with market conditions; always request an up-to-date quote for production volumes.
What is the lead time for PIC18F65K40-I/MR?
DigiKey lists PIC18F65K40-I/MR as 'ships today' for in-stock units as of 2026-09-28, indicating same-day fulfillment for orders placed before the cut-off. For larger volumes above distributor stock, Microchip Direct typically offers 8-12 week lead times; LCSC and authorized resellers often maintain bulk inventory for shorter procurement cycles.
Is PIC18F65K40-I/MR in stock at major distributors?
Yes, the PIC18F65K40-I/MR is confirmed in stock at DigiKey (6244579), Mouser (579-PIC18F65K40-I/MR), and LCSC (C642925) as of 2026-09-28. Stock levels fluctuate by distributor; for guaranteed availability on tight production schedules, request a quote from Microchip Direct or an authorized franchised partner.
What is the difference between PIC18F65K40-I/MR and PIC18F65K22-I/MR?
The PIC18F65K40-I/MR is the K40 generation with XLP low-power, Core Independent Peripherals (CWG, WWDT), PPS, and a 32 KB Flash footprint; the PIC18F65K22-I/MR is an earlier K22 family part with similar Flash density but a different peripheral mix. Both share the 64-VQFN (9x9) package, but their register maps and peripheral IP blocks differ - firmware written for the K22 will not run on the K40 without re-targeting.
What is the difference between PIC18F65K40-I/MR and PIC18F65K40-I/PT?
The PIC18F65K40-I/MR and PIC18F65K40-I/PT differ only in package: -I/MR is 64-VQFN (9x9 mm), while -I/PT is 64-TQFP. The silicon die, peripheral set, and pinout assignments are identical, but the physical footprint is not pin-compatible. Choose -I/MR for space-constrained PCB layouts; choose -I/PT when hand-soldering or rework is required.
When should I choose PIC18F65K40-I/MR over PIC18F46K40?
Choose PIC18F65K40-I/MR when you need the full 64-pin peripheral count of the K40 family; choose PIC18F46K40 when your design only requires 40-44 pins and you want to save PCB space and cost. Both share the same XLP, CIP, and PPS architecture, and code written for one can be re-targeted to the other with only minor pin-mapping changes.
What is the best drop-in replacement for PIC18F65K40-I/MR?
The closest drop-in alternatives in the same 64-VQFN footprint come from the Microchip PIC18 K40 family: PIC18F65K40T-I/MR (tape-and-reel variant, identical silicon), PIC18F65K40-E/MR (extended temperature grade), and PIC18LF65K40-I/MR (low-voltage variant optimized for 1.8V-3.6V operation). All three are pin-compatible in the 64-VQFN (9x9) package and drop into the same PCB footprint.
Can PIC18F46K40-I/ML replace PIC18F65K40-I/MR?
No, the PIC18F46K40-I/ML cannot directly replace the PIC18F65K40-I/MR because they use different packages - the 46K40-I/ML is 44-VQFN and the 65K40-I/MR is 64-VQFN. While both belong to the same K40 family and share the same silicon architecture, the differing pin counts and exposed-pad assignments require a PCB redesign; firmware migration is straightforward.
Where to download PIC18F65K40-I/MR datasheet PDF?
The official PIC18F65K40-I/MR datasheet PDF can be downloaded from Microchip's documentation portal at the product page ww1.microchip.com/downloads/aemDocuments/documents/MCU08/ProductDocuments/DataSheets/PIC18(L)F65K40-Data-Sheet-DS40001873D.pdf, or by navigating from microchip.com/en-us/product/PIC18F65K40. The datasheet covers electrical characteristics, peripheral configurations, and CIP usage examples across the 64-pin K40 family.
Where to find PIC18F65K40-I/MR pinout diagram?
The PIC18F65K40-I/MR pinout is documented in the official datasheet section covering the 64-VQFN (9x9) package. The VQFN package uses a 9x9 mm body with the exposed thermal pad connected to VSS; pin 1 is identified by the dot marker at the top-left when viewing the top marking. The full pin assignment table including PPS remapping options is provided in the device datasheet chapter on I/O Ports.
What is the difference between -I, -E, and -V temperature grades on PIC18F65K40?
The PIC18F65K40 family uses Microchip's standard temperature suffix system: -I (Industrial, -40C to +85C), -E (Extended, -40C to +125C), and -V (Automotive, -40C to +135C). The PIC18F65K40-I/MR is the Industrial grade and is suitable for most consumer, industrial, and IoT applications; for under-hood automotive or harsh environments, choose the -E or -V variant.
What is the best cross-brand equivalent for PIC18F65K40-I/MR?
There is no true drop-in cross-brand equivalent in the same 64-VQFN (9x9) footprint, because PIC18 devices use a proprietary PIC18 instruction set and peripheral architecture not replicated by other vendors. For cross-brand migration, designers typically select NXP LPC824 (Cortex-M0+ in 33-pin HVQFN), STM32F030 (Cortex-M0 in 64-pin LQFP), or Atmel/Microchip ATmega64M1 (AVR, but in different package); all require PCB redesign and full firmware port.

엔지니어링 참조 데이터: PIC18F65K40-I/MR — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the PIC18F65K40-I/MR when you need a 64-pin Microchip PIC18 XLP microcontroller with 32 KB Flash, 5V-tolerant I/O, and industrial -40C to +85C temperature range for general-purpose 5V embedded designs. Choose the PIC18F65K40T-I/MR for identical silicon in T&R carrier format for SMT production lines. Choose the PIC18LF65K40-I/MR for low-voltage 1.8V-3.6V applications powered from single-cell Li-ion or coin cells. Choose the PIC18F65K40-E/MR for extended-temperature designs up to +125C such as under-hood automotive or outdoor industrial. All four variants share the same 64-VQFN (9x9 mm) footprint and pinout, enabling PCB layout reuse. For smaller pin counts, the PIC18F46K40-I/ML (44-VQFN) and PIC18F45K40-I/ML (44-VQFN) offer the same XLP architecture but require a redesigned PCB.

대체품과의 비교

파라미터 이 제품 PIC18F65K40T-I/MR PIC18LF65K40-I/MR PIC18F65K40-E/MR
Package 64-VQFN (9x9 mm) 64-VQFN (9x9 mm) - same 64-VQFN (9x9 mm) - same 64-VQFN (9x9 mm) - same
Brand Microchip Technology Microchip Technology - same Microchip Technology - same Microchip Technology - same
Flash Memory 32 KB 32 KB 32 KB 32 KB
SRAM 2 KB 2 KB 2 KB 2 KB
Operating Voltage 2.3V - 5.5V 2.3V - 5.5V 1.8V - 3.6V (LF variant) 2.3V - 5.5V
Operating Temperature -40C to +85C (Industrial) -40C to +85C (Industrial) -40C to +85C (Industrial) -40C to +125C (Extended)
Core Independent Peripherals (CIP) CWG, WWDT, CRC/SCAN, ZCD, CTMU, mTouch Same CIP set Same CIP set Same CIP set
Pin Count 64 64 64 64

주요 차별점

  • Tape-and-reel packaging variant for high-volume assembly (vs PIC18F65K40T-I/MR)
  • Low-voltage variant for 1.8V-3.6V operation (vs PIC18LF65K40-I/MR)
  • Extended temperature grade for harsh environments (vs PIC18F65K40-E/MR)

설계 노트

The 64-VQFN (9x9 mm) package exposes a thermal pad on the underside that MUST be soldered to a continuous copper ground plane for both electrical and thermal performance. Without the EP soldered, the device dissipates heat poorly through only the side leads, and at high CPU activity (64 MIPS) the junction temperature can rise 30-40C above ambient. For 5V industrial control where the device dissipates appreciable I/O power, ensure at least 1 sq inch of unbroken ground copper beneath the EP.

Place the VDDCORE decoupling capacitor (0.1uF ceramic, X7R, 6.3V or higher) as close as possible to the VDDCORE pin (pin 19), with the trace length kept under 5 mm. Use a wide, short ground return path directly to the VSS pin (pin 20). Place AVDD and AVSS analog supply pins with their own 10uF + 0.1uF capacitor stack, separated from digital VDD noise by a ferrite bead if analog accuracy is critical.

Several common pitfalls: (1) Floating unused I/O pins must be configured as outputs or inputs with the WPU disabled to avoid leakage; (2) MCLR should be pulled up to VDD through a 10 kohm resistor unless configured as a regular I/O; (3) PPS remapping of peripherals must be UNLOCKED before configuration - the IOLOCK bit must be cleared by the unlock sequence; (4) Always consult the device errata for ADCC and PPS revisions before locking the PCB layout for production.

For USB applications using the on-chip USB peripheral, the D+/D- lines require 90 ohm differential impedance and a 1.5 kohm pull-up to indicate Full-Speed connection; place ferrite beads on VDD near the USB connector to suppress bus-powered noise. For CAN bus lines, use the MCP2515 external CAN controller or a dedicated CAN PIC18F variant; the PIC18F65K40 lacks an integrated CAN peripheral in the standard configuration.

규정 준수 정보

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
무연
Yes
무할로겐
Yes
분쟁 광물
Compliant

RoHS compliant per Microchip product page. Industrial (-I) temperature grade; AEC-Q100 not qualified - choose PIC18F65K40-E/MR for harsh environment variants.

데이터 검증일: 2026-09-28 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

관련 검색

PIC18F65K40-I/MR PIC18F65K40-I/MR datasheet Microchip PIC18F65K40 PIC18 8-bit 64MHz 32KB Flash 64-pin VQFN microcontroller XLP PIC18F65K40 capacitive touch mTouch PIC18F65K40 vs PIC18F46K40 PIC18F65K40 drop-in replacement PIC18F65K40 buy price distributor what is the operating voltage of PIC18F65K40 PIC18F65K40 pinout 64-VQFN PIC18 XLP nanoWatt low power MCU

관련 부품 & 용어

Microchip Technology PIC18F65K40 PIC18F65K40-I/MR PIC18F65K40T-I/MR PIC18LF65K40-I/MR PIC18F65K40-E/MR PIC18F46K40-I/ML PIC18 XLP 8-bit microcontroller PIC18 enhanced Harvard architecture PIC18 K40 family Core Independent Peripheral (CIP) Complementary Waveform Generator (CWG) Windowed Watchdog Timer (WWDT) Peripheral Pin Select (PPS) mTouch capacitive touch 64-VQFN VQFN family surface mount AEC-Q100 RoHS REACH industrial temperature grade EEPROM 5V tolerant I/O
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