PIC18F46K22-I/ML - 64KB Flash 8-bit MCU 44-QFN | Microchip
MPN: PIC18F46K22-I/ML ✓ AktifPIC18F46K22-I/ML Ringkasan
An 8-bit microcontroller (MCU) is a programmable processor core built around an 8-bit data path that integrates Flash program memory, SRAM, EEPROM, peripherals, and interrupt logic into a single chip. PIC18F devices use a Harvard RISC architecture with a 16-bit instruction word, giving them deterministic interrupt latency and strong code density for embedded C and assembly projects. They sit within the broader hierarchy of microcontrollers -> microcontrollers -> microcontrollers -> MCUs -> semiconductors, and bridge low-power peripherals with real-time control.
Key features include 16 MIPS throughput at 64 MHz, 1 KB of EEPROM, nanoWatt XLP sleep current typically below 100 nA, two rail-to-rail analog comparators with programmable on-chip voltage reference, up to 28 channels of mTouch capacitive touch sensing, two USART, two MSSP (SPI/I2C), and a 12-bit ADC with up to 28 channels. The charge-time measurement unit (CTMU) supports capacitive and ratiometric measurements, while the peripheral pin select (PPS) provides flexible signal routing.
Architecturally, the PIC18F46K22 uses an enhanced Harvard core with hardware multiply, a 31-level stack, and self-programmable Flash that allows bootloaders and on-the-fly firmware updates. The -I suffix indicates the industrial -40°C to +85°C temperature grade, and /ML denotes the 8x8 mm QFN-44 EP package with better thermal dissipation than a TQFP of the same die.
Typical applications include automotive body controllers, HVAC control panels, white-goods and appliance interfaces, low-power sensor nodes, capacitive touch user interfaces, and industrial control modules where 5V tolerance and EMI robustness matter. The wide operating voltage makes it tolerant of 3.3V and legacy 5V rails.
When designing with the PIC18F46K22-I/ML, ground the exposed pad (EP) to a continuous copper pour to meet the 31.6 C/W thermal resistance; leave at least 0.5 mm clearance on outer rows for solder wicking. Decouple VDD/VSS pairs with 100 nF X7R ceramics as close as possible to each pin pair. For migration planning, evaluate the PIC18F46Q10 family as Microchip's recommended modern successor.
Alternatif penggantian untuk PIC18F46K22-I/ML — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian PIC18F46K22-I/ML (sama faktor bentuk dan footprint) — berbeda di dalam Package, Program Memory (Flash), Timers, ADC, Core Architecture.
PIC18F46K22-I/PT
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC18F45K22-I/ML
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC18F44K22-I/ML
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC18F46K22-E/ML
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →PIC18F46K20-I/ML
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC18F46K22T-I/ML
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
PIC18F46K22-I/ML Rating Maksimal & Karakteristik Listrik
| Family | PIC18F XLP |
| Core Architecture | 8-bit PIC RISC |
| Program Memory (Flash) | 64 KB |
| RAM | 3968 B |
| EEPROM | 1024 B |
| Maximum CPU Frequency | 64 MHz |
| Performance (MIPS) | 16 MIPS |
| Tegangan Pemuat | 2.5 V to 5.5 V |
| Suhu Kerja | -40 C to +85 C (industrial) |
| ADC | 12-bit, up to 28 channels |
| Comparators | 2 rail-to-rail analog |
| Timers | 8-bit and 16-bit, multiple modules |
| Communication | 2x USART, 2x MSSP (SPI/I2C) |
| Capacitive Touch Channels | Up to 28 (mTouch) |
| Paket | QFN-44 EP (ML) 8x8 mm |
| Jumlah Pin | 44 |
| Tipe Mounting | Surface Mount |
| Status RoHS | Compliant |
| Automotive Qualification | AEC-Q100 qualified |
| Low-Power Technology | nanoWatt XLP |
Konfigurasi Pin PIC18F46K22-I/ML
| Pin produk 1 | RE3/MCLR — Master Clear (reset) input or digital I/O RE3 |
| Pin produk 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Pin produk 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Pin produk 4 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Pin produk 5 | RA3/AN3 — PORTA bit 3 / analog input 3 |
| Pin produk 6 | RA4/AN4 — PORTA bit 4 / analog input 4 |
| Pin produk 7 | RA5/AN5 — PORTA bit 5 / analog input 5 |
| Pin produk 8 | RA6 — PORTA bit 6 |
| Pin produk 9 | RA7 — PORTA bit 7 |
| Pin produk 10 | VSS — Ground reference |
| Pin produk 11 | VDD — Positive supply voltage |
| Pin produk 12 | RB0/AN12 — PORTB bit 0 / analog input 12 |
| Pin produk 13 | RB1/AN10 — PORTB bit 1 / analog input 10 |
| Pin produk 14 | RB2/AN8 — PORTB bit 2 / analog input 8 |
| Pin produk 15 | RB3/AN9 — PORTB bit 3 / analog input 9 |
| Pin produk 16 | RB4/AN11 — PORTB bit 4 / analog input 11 |
| Pin produk 17 | RB5/AN13 — PORTB bit 5 / analog input 13 |
| Pin produk 18 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pin produk 19 | RB7/PGD — PORTB bit 7 / ICSP data |
| Pin produk 20 | VSS — Ground reference |
| Pin produk 21 | VDD — Positive supply voltage |
| Pin produk 22 | RC0/SOSCO — PORTC bit 0 / secondary oscillator output |
| Pin produk 23 | RC1/SOSCI — PORTC bit 1 / secondary oscillator input |
| Pin produk 24 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| Pin produk 25 | RC3/SCL — PORTC bit 3 / I2C clock |
| Pin produk 26 | RC4/SDA — PORTC bit 4 / I2C data |
| Pin produk 27 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin produk 28 | RC6/TX/CK — PORTC bit 6 / USART TX or clock |
| Pin produk 29 | RC7/RX/DT — PORTC bit 7 / USART RX or data |
| Pin produk 30 | VSS — Ground reference |
| Pin produk 31 | VDD — Positive supply voltage |
| Pin produk 32 | RD0 — PORTD bit 0 |
| Pin produk 33 | RD1 — PORTD bit 1 |
| Pin produk 34 | RD2 — PORTD bit 2 |
| Pin produk 35 | RD3 — PORTD bit 3 |
| Pin produk 36 | RD4 — PORTD bit 4 |
| Pin produk 37 | RD5 — PORTD bit 5 |
| Pin produk 38 | RD6 — PORTD bit 6 |
| Pin produk 39 | RD7 — PORTD bit 7 |
| Pin produk 40 | VSS — Ground reference |
| Pin produk 41 | VDD — Positive supply voltage |
| Pin produk 42 | RE0/AN5 — PORTE bit 0 / analog input 5 |
| Pin produk 43 | RE1/AN6 — PORTE bit 1 / analog input 6 |
| Pin produk 44 | RE2/AN7 — PORTE bit 2 / analog input 7 |
| Pin produk 45 | EP — Exposed thermal pad - connect to VSS |
Aplikasi Umum
PIC18F46K22-I/ML cocok untuk 6 aplikasis: Automotive Body Control Module, Capacitive Touch User Interface, Industrial HVAC Control Panel, Battery-Powered Sensor Node, White Goods Motor Controller, Medical Device User Interface.
Automotive Body Control Module
The PIC18F46K22-I/ML is well-suited for automotive body ECUs because it is AEC-Q100 qualified, supports 2.5V–5.5V rails from the vehicle 12V pre-regulated bus, and integrates two rail-to-rail comparators for switch debouncing. With 64 KB Flash and 3968 B RAM, it can host CAN-style communication stacks via the two MSSP peripherals and 16 MIPS performance enables real-time lighting and seat-control response. Its nanoWatt XLP sleep below 100 nA is critical for parked-current battery compliance.
Direkomendasikan
Capacitive Touch User Interface
The mTouch and CTMU peripherals in the PIC18F46K22-I/ML enable up to 28 capacitive touch channels without an external touch IC. This makes the part a strong fit for white-goods, kitchen appliance, and consumer touch panels where BOM cost matters. The 12-bit ADC, 16 MIPS throughput, and 64 KB Flash accommodate modern GUI state machines with on-the-fly firmware updates through self-programmable Flash.
Direkomendasikan
Industrial HVAC Control Panel
The PIC18F46K22-I/ML fits HVAC control panels because it integrates dual analog comparators, multiple PWM modules, and the PIC18 real-time control architecture. Industrial 24V pre-regulated rails step down to 5V, where the part's 2.5V–5.5V tolerance handles transients. nanoWatt XLP lets the panel enter sub-uA standby between user interactions while still waking instantly via mTouch or comparator interrupts.
Direkomendasikan
Battery-Powered Sensor Node
The nanoWatt XLP technology gives the PIC18F46K22-I/ML a measured sleep current below 100 nA, while the RTC and periodic wake from Timer1 let it run for years on a 3V lithium cell. The 12-bit ADC with internal voltage reference, plus CTMU, supports ratiometric temperature and gas sensing. Two USART and two MSSP interfaces cover LoRa, BLE, or Wi-Fi module links for a sub-$5 sensor node.
Direkomendasikan
White Goods Motor Controller
The PIC18F46K22-I/ML can drive small brushed DC or stepper motor control loops directly with its PWM, ECCP, and 12-bit ADC in washing machines, dishwashers, and refrigerators. The 16 MIPS throughput is enough for sensorless back-EMF commutation, while the QFN-44 EP package dissipates controller heat across the exposed pad. AEC-Q100 qualification also meets refrigerator compressor inverter qualification requirements.
Direkomendasikan
Medical Device User Interface
For portable medical devices such as blood-pressure monitors, glucose meters, and pulse oximeters, the PIC18F46K22-I/ML provides the deterministic PIC18 interrupt latency needed for safety-critical measurement sequencing. The 12-bit ADC with internal 1.024V reference captures sensor data with <1 LSB linearity, while the 64 KB Flash supports IEC 62304 firmware audits. Low power extends battery life during standby.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk PIC18F46K22-I/ML — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | PIC18F46K22-I/PT | PIC18F45K22-I/ML | PIC18F44K22-I/ML | PIC18F46K22-E/ML | PIC18F46K20-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | QFN-44 EP (ML) 8x8 mm | TQFP-44 (PT) 10x10 mm | QFN-44 EP (ML) 8x8 mm - same | QFN-44 EP (ML) 8x8 mm - same | QFN-44 EP (ML) 8x8 mm - same | QFN-44 EP (ML) 8x8 mm - same |
| Flash Memory | 64 KB | 64 KB | 32 KB (-50%) | 16 KB (-75%) | 64 KB | 32 KB (-50%) |
| RAM | 3968 B | 3968 B | 1536 B (-61%) | 768 B (-81%) | 3968 B | 1536 B (-61%) |
| CPU Frequency | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C (extended) | -40 C to +85 C |
| AEC-Q100 | Qualified (Grade 3) | Qualified (Grade 3) | Qualified (Grade 3) | Qualified (Grade 3) | Qualified (Grade 1) | Qualified (Grade 3) |
Diferensiator Kunci
- Same silicon in QFN-44 package (vsPIC18F46K22-I/PT)
- Doubled Flash and RAM over the K20 predecessor (vsPIC18F46K20-I/ML)
- Highest memory tier in K22 family (vsPIC18F45K22-I/ML)
Catatan Desain
Solder the QFN-44 EP exposed pad to a continuous copper pour using at least 4 thermal vias (0.3 mm drill, 0.6 mm pad) to a bottom-plane ground pour. This brings the thermal resistance to ~31.6 C/W as specified by Microchip datasheet DS41476. Without proper EP soldering, the part can overheat in continuous 64 MHz operation at high ambient temperatures.
Place a 100 nF X7R decoupling capacitor within 3 mm of every VDD pin pair (4 pairs total in QFN-44) and a single 10 uF bulk tantalum or ceramic on the main supply rail. The internal voltage regulator requires this bulk capacitance to handle nanoWatt XLP mode transitions when waking from sub-uA sleep to active 16 MIPS operation.
Configuration fuses (CONFIG words) control WDT, code-protect, oscillator, and low-voltage-programming settings; an unprogrammed device defaults to safe slow RC mode. Always set CONFIG1L for proper FOSC selection - leaving the default blocks PLL and prevents 64 MHz operation. Program CONFIG7L CONFIG7H for read protection only after firmware is fully verified.
Route the ICSP pins (RB6/PGC, RB7/PGD) to a 6-pin 0.1 inch header on the PCB edge for in-circuit programming and debug. Keep the trace length under 50 mm and use a 4.7 kohm pull-up on MCLR to VDD to avoid spurious resets in electrically noisy environments like motor drive stages.
Informasi Konformitas
AEC-Q100 Grade 3 qualified per datasheet DS41476 and Microchip product page. RoHS and lead-free confirmed via distributor stock listings.
