PIC18F65K22-E/MR - 64KB Flash, 64MHz 8-bit MCU, 64-VQFN | Microchip
料号： PIC18F65K22-E/MR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.6 | $5.60 |
| 10 | $5.04 | $50.40 |
| 100 | $4.48 | $448.00 |
| 500 | $3.95 | $1,975.00 |
| 1,000 | $3.5 | $3,500.00 |
PIC18F65K22-E/MR 概述
Key features include a 64 MHz internal oscillator (16 MIPS instruction throughput), up to 54 digital I/O pins, three 12-bit A/D converters with up to 16 input channels, two comparators, four 16-bit timers, two CCP modules, three EUSART and two SPI/I2C peripherals, plus a CTMU peripheral. The integrated USB 2.0 full-speed transceiver supports USB device/host/OTG operation without an external PHY, simplifying BOM cost. The on-chip 12-bit ADC delivers conversion rates up to 100 ksps, suitable for sensor signal acquisition and closed-loop control.
The PIC18F65K22 uses an enhanced Harvard RISC core with hardware multiply and a C-optimized instruction set, making it suitable for both assembly and C development under MPLAB X IDE and XC8/MCC code generation. Peripherals connect via a peripheral pin select (PPS) multiplexer that allows flexible pin assignment, easing PCB layout under tight package constraints. The device also includes an LCD driver capable of driving up to 288 segments, making it a fit for user-interface appliances and instrumentation.
Typical applications include battery-powered IoT sensor nodes with capacitive touch user input, USB peripherals such as HID or CDC class devices, industrial control panels combining analog sensing with segment-LCD readouts, and portable medical instrumentation where low quiescent current directly extends battery life. The wide operating voltage range allows direct connection to 2xAA or Li-Ion battery stacks.
When designing with this part, pay attention to the VQFN exposed pad layout - the thermal pad must be soldered to a sufficiently large copper pour to meet thermal and electrical ground connectivity requirements. Decoupling should follow the datasheet recommended pattern with at least one 0.1uF and one 1uF/10uF bulk capacitor placed close to the VDD pins, and the USB bus must use the datasheet-specified 90-ohm differential pair routing. The device is provided in tape-and-reel packaging suitable for SMT assembly lines.
This page synthesizes distributor pricing, pin-compatible alternatives within the PIC18 K-series family, and practical design notes beyond what the manufacturer datasheet alone provides - including comparison against the -I temperature grade sibling and a checklist of common pitfalls when migrating between MR and PT 64/80-pin packages.
直接替换替代料： PIC18F65K22-E/MR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC18F65K22-E/MR （相同外形与封装尺寸） ——差异在于 Package, Core Architecture, ADC, Operating Temperature Range, Timers.
快速对比工具——选择替代料号进行并排对比：
PIC18F65K22-I/MR
✅ 直接替换📋 参考替代料（不在目录中）
PIC18F65K22T-E/MR
✅ 直接替换📋 参考替代料（不在目录中）
PIC18F66K22-E/MR
✅ 直接替换✓ 有现货
$3.79 / 个
查看数据手册 →PIC18F65K90-E/MR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.6 / 个
查看数据手册 →PIC18F65K40-E/MR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.32 / 个
查看数据手册 →PIC18F65K22-E/PT
✅ 直接替换✓ 有现货
$4.39 / 个
查看数据手册 →PIC18F65K22-E/MR 最大额定值与电气特性
| Family | PIC18F K-series (PIC18F6XK22) |
| Core | 8-bit PIC enhanced RISC |
| Program Memory | 64 KB Flash |
| RAM | 4 KB |
| EEPROM | 1 KB |
| Maximum Clock Speed | 64 MHz (16 MIPS) |
| Supply Voltage Range | 1.8 V to 5.5 V |
| 工作温度范围 | -40C to +125C (Extended) |
| I/O Pins | 54 |
| 封装 | 64-pin VQFN (9x9 mm, exposed pad) |
| ADC | 12-bit, up to 16 channels |
| USB | USB 2.0 Full-Speed OTG (integrated transceiver) |
| Timers | 4 x 16-bit, 2 x 8-bit |
| Communication Peripherals | 2x EUSART, 2x SPI/I2C, 2x MSSP |
| Special Features | nanoWatt XLP, CTMU, LCD driver (up to 288 segments), PPS |
| RoHS 状态 | Compliant |
PIC18F65K22-E/MR 引脚配置
| 引脚 1 | RB0/INT0/FLT0 — PORTB bit 0 / external interrupt 0 / PWM fault input |
| 引脚 2 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| 引脚 3 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| 引脚 4 | RB3/INT3 — PORTB bit 3 / external interrupt 3 |
| 引脚 5 | RB4/KBI0 — PORTB bit 4 / KBI interrupt 0 |
| 引脚 6 | RB5/KBI1 — PORTB bit 5 / KBI interrupt 1 |
| 引脚 7 | RB6/KBI2/PGC — PORTB bit 6 / KBI interrupt 2 / ICSP clock |
| 引脚 8 | RB7/KBI3/PGD — PORTB bit 7 / KBI interrupt 3 / ICSP data |
| 引脚 9 | VSS — Ground reference |
| 引脚 10 | VDD — Positive supply voltage |
| 引脚 11 | RC0/SOSCO — PORTC bit 0 / secondary oscillator output |
| 引脚 12 | RC1/SOSCI — PORTC bit 1 / secondary oscillator input |
| 引脚 13 | RC2/T1G — PORTC bit 2 / Timer1 gate |
| 引脚 14 | RC3 — PORTC bit 3 |
| 引脚 15 | RC4 — PORTC bit 4 |
| 引脚 16 | RC5 — PORTC bit 5 |
| 引脚 17 | RC6 — PORTC bit 6 |
| 引脚 18 | RC7 — PORTC bit 7 |
| 引脚 19 | VSS — Ground reference |
| 引脚 20 | VDD — Positive supply voltage |
| 引脚 21 | RD0/PSP0 — PORTD bit 0 / parallel slave port bit 0 |
| 引脚 22 | RD1/PSP1 — PORTD bit 1 / parallel slave port bit 1 |
| 引脚 23 | RD2/PSP2 — PORTD bit 2 / parallel slave port bit 2 |
| 引脚 24 | RD3/PSP3 — PORTD bit 3 / parallel slave port bit 3 |
| 引脚 25 | RD4/PSP4 — PORTD bit 4 / parallel slave port bit 4 |
| 引脚 26 | RD5/PSP5 — PORTD bit 5 / parallel slave port bit 5 |
| 引脚 27 | RD6/PSP6 — PORTD bit 6 / parallel slave port bit 6 |
| 引脚 28 | RD7/PSP7 — PORTD bit 7 / parallel slave port bit 7 |
| 引脚 29 | VSS — Ground reference |
| 引脚 30 | VDD — Positive supply voltage |
| 引脚 31 | RE0/RD — PORTE bit 0 / parallel slave port read control |
| 引脚 32 | RE1/WR — PORTE bit 1 / parallel slave port write control |
| 引脚 33 | RE2/CS — PORTE bit 2 / parallel slave port chip select |
| 引脚 34 | RE3 — PORTE bit 3 (input only) |
| 引脚 35 | RE4 — PORTE bit 4 |
| 引脚 36 | RE5 — PORTE bit 5 |
| 引脚 37 | RE6 — PORTE bit 6 |
| 引脚 38 | RE7 — PORTE bit 7 |
| 引脚 39 | RF0 — PORTF bit 0 |
| 引脚 40 | RF1/AN6 — PORTF bit 1 / analog input 6 |
| 引脚 41 | RF2/AN7 — PORTF bit 2 / analog input 7 |
| 引脚 42 | RF3/AN8 — PORTF bit 3 / analog input 8 |
| 引脚 43 | RF4/AN9 — PORTF bit 4 / analog input 9 |
| 引脚 44 | RF5/AN10/CVREF — PORTF bit 5 / analog input 10 / CV reference |
| 引脚 45 | RF6/AN11 — PORTF bit 6 / analog input 11 |
| 引脚 46 | RF7 — PORTF bit 7 |
| 引脚 47 | RG0 — PORTG bit 0 |
| 引脚 48 | RG1 — PORTG bit 1 |
| 引脚 49 | RG2 — PORTG bit 2 |
| 引脚 50 | RG3 — PORTG bit 3 |
| 引脚 51 | RG4 — PORTG bit 4 |
| 引脚 52 | MCLR/RE3 — Master clear reset input |
| 引脚 53 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| 引脚 54 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| 引脚 55 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| 引脚 56 | RA3/AN3 — PORTA bit 3 / analog input 3 |
| 引脚 57 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| 引脚 58 | RA5/AN4 — PORTA bit 5 / analog input 4 |
| 引脚 59 | RA6/OSC2 — PORTA bit 6 / oscillator output |
| 引脚 60 | RA7/OSC1 — PORTA bit 7 / oscillator input |
| 引脚 61 | VSS — Ground reference |
| 引脚 62 | VDD — Positive supply voltage |
| 引脚 63 | D+/RG6 — USB D+ / PORTG bit 6 |
| 引脚 64 | D-/RG7 — USB D- / PORTG bit 7 |
典型应用
PIC18F65K22-E/MR 适用于 7 应用s: Battery-Powered IoT Sensor Nodes with Capacitive Touch, USB HID/CDC Peripherals, Industrial Control Panels with Segment LCD, Portable Medical Instrumentation, Home Appliance User Interfaces, Automotive Body Electronics (Non-Safety), Educational / Maker Development Platforms.
Battery-Powered IoT Sensor Nodes with Capacitive Touch
The PIC18F65K22-E/MR is well suited for battery-powered IoT sensor nodes with capacitive touch user input because the integrated CTMU peripheral simplifies touch button and slider implementation without external timing components. The nanoWatt XLP technology achieves deep-sleep currents in the nanoampere range, extending battery life to years on 2xAA cells. The 12-bit ADC provides accurate sensor measurement while the wide 1.8-5.5V supply range allows direct connection to alkaline or Li-Ion battery stacks. Designers can use sleep mode + periodic CTMU scanning to keep average current under 1 uA.
推荐
USB HID/CDC Peripherals
The PIC18F65K22-E/MR is ideal for USB HID or CDC class peripherals because the integrated USB 2.0 full-speed transceiver supports device, host, and OTG operation without an external PHY, reducing BOM cost. The 64 KB Flash accommodates USB stacks, class drivers, and application code, while 4 KB SRAM handles USB buffering plus application data. The on-chip USB voltage regulator powers the transceiver directly from the 5V VBUS rail. Per Microchip datasheet section, the USB peripheral requires a 48 MHz clock source, achievable via the PLL from a 16 MHz crystal or internal oscillator.
推荐
Industrial Control Panels with Segment LCD
The PIC18F65K22-E/MR fits industrial control panels combining analog sensing with segment-LCD readouts because the integrated LCD driver supports up to 288 segments without an external LCD controller. The 12-bit ADC with up to 16 channels handles multi-sensor acquisition, while the extended -40C to +125C temperature grade tolerates factory-floor environments. PPS allows flexible routing of digital signals around the LCD glass connector, easing PCB layout. The 64 KB Flash accommodates HMI state machines, calibration tables, and segment mapping arrays.
推荐
Portable Medical Instrumentation
The PIC18F65K22-E/MR serves portable medical instrumentation well because nanoWatt XLP technology minimizes quiescent current, directly extending battery life in compliance-critical applications. The 12-bit ADC with up to 16 channels captures physiological sensor signals such as temperature, pulse, or impedance measurements with adequate resolution for clinical-grade accuracy. The USB OTG transceiver supports tethered data transfer to host PCs for record-keeping. Extended temperature grade and Watchdog Timer with separate oscillator enhance system reliability for unattended operation.
推荐
Home Appliance User Interfaces
The PIC18F65K22-E/MR is suitable for home appliance user interfaces combining capacitive touch with segment LCD display because the CTMU peripheral simplifies touch button implementation and the integrated LCD driver eliminates external display controllers. The wide 1.8-5.5V supply accepts unregulated wall-adapter outputs, reducing power supply cost. PWM outputs drive LED indicators or backlight brightness control. The extended -40C to +125C temperature grade tolerates kitchen or laundry environments where ambient temperature can spike during operation.
推荐
Automotive Body Electronics (Non-Safety)
The PIC18F65K22-E/MR handles automotive body electronics such as seat controllers, mirror modules, or ambient lighting drivers because the extended -40C to +125C temperature grade meets under-hood or cabin thermal stress. The 12-bit ADC reads sensor inputs such as position or temperature, and PWM channels drive LED dimming or motor speed control. Note that for safety-critical applications, designers should select an AEC-Q100-qualified MCU; the PIC18F65K22 family is suitable for non-safety body modules and comfort systems. USB OTG supports diagnostics interface to service tools.
推荐
Educational / Maker Development Platforms
The PIC18F65K22-E/MR fits educational and maker development platforms because the 64-pin VQFN exposes nearly the full PIC18 peripheral set including USB, ADC, CTMU, and LCD driver, enabling hands-on exploration of multiple peripheral classes in one part. MPLAB X IDE and the MPLAB Code Configurator (MCC) provide graphical peripheral setup, lowering the entry barrier for students and hobbyists. The extensive Microchip application note library and active community forum accelerate learning. The tape-and-reel -E/MR variant is typically available through distributors in sample quantities.
推荐
推荐产品汇总
工程参考数据： PIC18F65K22-E/MR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC18F65K22-I/MR | PIC18F65K22T-E/MR | PIC18F66K22-E/MR | PIC18F65K90-E/MR | PIC18F65K40-E/MR |
|---|---|---|---|---|---|---|
| Package | 64-VQFN (9x9) | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 64 KB | 64 KB | 64 KB | 128 KB | 32 KB | 32 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 2 KB | 2 KB |
| Maximum Clock | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) |
| USB 2.0 FS | Yes (OTG) | Yes (OTG) | Yes (OTG) | Yes (OTG) | Yes (OTG) | Yes (OTG) |
| CTMU | Yes | Yes | Yes | Yes | Yes | No (CWG/DSM instead) |
关键差异点
- Integrated USB 2.0 FS OTG with on-chip transceiver （对比 PIC18F46K22-I/P (40-pin DIP, no USB))
- nanoWatt XLP deep-sleep current in nanoampere range （对比 PIC18F4550-I/P (legacy USB PIC))
- Integrated CTMU peripheral for capacitive touch （对比 Discrete touch ICs (e.g., MTCH6102))
设计说明
The 64-pin VQFN (MR) package exposes a central thermal pad that must be soldered to a sufficiently large copper pour for electrical ground and thermal dissipation. Per Microchip layout guidelines, the thermal pad via pattern should use an array of 0.3 mm thermal vias on a 1 mm pitch connecting to an internal ground plane. Insufficient thermal pad soldering can result in 10-15C junction temperature rise under typical loads and may violate reliability specifications at the +125C extended temperature operating point.
Decoupling must follow the datasheet recommendation: place one 0.1 uF ceramic capacitor as close as possible to each VDD/VSS pair, plus a bulk 1 uF or 10 uF tantalum/ceramic at the package entry point. The USB transceiver's internal voltage regulator requires an additional 1 uF + 100 nF pair on the VUSB pin. For battery-powered designs using nanoWatt XLP sleep modes, place the decoupling network so that bulk capacitors do not leak through MCU pins during deep-sleep current measurements.
When migrating between the /MR (64-VQFN) and /PT (64-TQFP) packages, verify the footprint, thermal pad, and PCB layout match before declaring drop-in compatibility. The two packages have identical pin functions but different PCB land patterns and thermal pad requirements - the VQFN requires central pad soldering while the TQFP has no thermal pad. Additionally, USB design requires the D+/D- pair to be routed as a 90-ohm differential pair on the top layer over a continuous ground plane; routing over splits or with vias in the pair degrades USB signal integrity.
合规信息
RoHS and REACH compliance per Microchip product environmental certification. Not AEC-Q100 qualified - for safety-critical automotive designs, use AEC-Q100-qualified PIC18F variants or PIC32MX MCUs.
