PIC18F46K22-I/MV - 8-bit 64MHz 64KB Flash MCU | Microchip
Référence : PIC18F46K22-I/MV ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $3.42 | $3,42 |
| 10 | $3.07 | $30,70 |
| 100 | $2.62 | $262,00 |
| 500 | $2.34 | $1 170,00 |
| 1 000 | $2.1 | $2 100,00 |
PIC18F46K22-I/MV Présentation
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path that integrates CPU, memory (Flash for program, RAM for data, EEPROM for non-volatile storage), and peripherals into one package. The PIC18 family sits between PIC16 (baseline) and dsPIC33 (16-bit DSP) in Microchip's portfolio, offering higher performance than baseline MCUs while maintaining code efficiency for general-purpose embedded designs. PIC18F K-series parts specifically add nanoWatt XLP sleep currents below 100 nA in some modes, competing directly with low-power ARM Cortex-M0+ devices.
Key features include 64 KB (32K x 16) of self-programmable Flash, 256-byte EEPROM data memory, a 16-level hardware stack, and 35 I/O pins. The PIC18F46K22 family supports 256 KB of addressed program space via a 21-bit PC, allowing linear addressing for large applications. Operating voltage spans 1.8 V to 5.5 V, and the 64 MHz internal oscillator provides 16 MIPS of throughput from a single-cycle instruction pipeline.
Technical depth: The device uses a 16-bit instruction word with an 8-bit data path, executes most instructions in one cycle, and supports hardware multiply and prioritized interrupts. The 12-bit A/D converter offers up to 28 channels with auto-acquisition, while the EUSART supports LIN, IrDA, and RS-485 protocols. Compared with the older PIC18F4620, the K22 family adds more peripherals, deeper FIFO, and lower sleep current thanks to XLP technology.
Typical applications include industrial control panels, low-power sensor nodes, USB-less human-machine interface (HMI) controllers, building automation, and battery-powered instrumentation. The wide 1.8-5.5 V range lets the same firmware run from single-cell Li-Ion, 3.3 V LDO rails, or legacy 5 V systems, making it a common migration target for legacy PIC18F4620 designs.
Designers should be aware that the 40-pin UQFN (MV) package has an exposed thermal pad (EP) that must be soldered to the ground plane for thermal dissipation. Programming is supported by MPLAB X IDE with PICkit 3/4/5 or ICD 4; for production programming, use MPLAB PM3 or the MPLAB IPE production tooling.
This page synthesizes Microchip distributor pricing, drop-in UQFN-40 alternatives from the same PIC18F K22 family, and practical design notes not aggregated in the manufacturer datasheet.
Alternatives de remplacement direct pour PIC18F46K22-I/MV — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC18F46K22-I/MV (même facteur de forme et même empreinte) — différant par ADC, Package, Program Memory (Flash), Timers, Operating Temperature.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18F46K22T-I/MV
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F46Q10-I/MV
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F46K42-I/MV
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F46J50-I/MV
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F47Q10-I/MV
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F46K22-I/MV Valeurs maximales et caractéristiques électriques
| Core Architecture | PIC18 8-bit RISC |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data RAM | 3,968 bytes |
| Data EEPROM | 1,024 bytes |
| Maximum CPU Speed | 64 MHz (16 MIPS) |
| Internal Oscillator | 16 MHz to 64 MHz selectable |
| Operating Voltage | 1.8 V to 5.5 V |
| I/O Pins | 35 |
| ADC | 12-bit, up to 28 channels |
| Comparators | Yes (multiple) |
| Timers | Multiple 8/16-bit with CCP/ECCP |
| Communication | 2x EUSART, 2x MSSP (SPI/I2C) |
| PWM Channels | Up to 5 CCP/ECCP |
| Boîtier | 40-UQFN (MV) 5x5 mm |
| Température de fonctionnement | -40C to +85C (Industrial, 'I') |
| Low-Power Technology | nanoWatt XLP |
| Statut RoHS | Compliant |
Configuration des broches de PIC18F46K22-I/MV
| Broche 1 | RA2 — Digital I/O / analog input AN2 |
| Broche 2 | RA3 — Digital I/O / analog input AN3 / VREF+ |
| Broche 3 | RA4 — Digital I/O / analog input AN4 |
| Broche 4 | RA5 — Digital I/O / analog input AN5 |
| Broche 5 | VDD — Positive supply voltage (1.8-5.5 V) |
| Broche 6 | VSS — Ground reference |
| Broche 7 | RA7 — Digital I/O / oscillator input |
| Broche 8 | RA6 — Digital I/O / oscillator output |
| Broche 9 | RC0 — Digital I/O / analog input AN16 |
| Broche 10 | RC1 — Digital I/O / analog input AN17 |
| Broche 11 | RC2 — Digital I/O / analog input AN18 |
| Broche 12 | RC3 — Digital I/O / analog input AN19 / SCL1 |
| Broche 13 | RC4 — Digital I/O / analog input AN20 / SDA1 |
| Broche 14 | RC5 — Digital I/O / analog input AN21 |
| Broche 15 | RC6 — Digital I/O / TX1 |
| Broche 16 | RC7 — Digital I/O / RX1 |
| Broche 17 | RD0 — Digital I/O |
| Broche 18 | RD1 — Digital I/O |
| Broche 19 | RD2 — Digital I/O |
| Broche 20 | RD3 — Digital I/O |
| Broche 21 | RD4 — Digital I/O |
| Broche 22 | RD5 — Digital I/O / PWM |
| Broche 23 | RD6 — Digital I/O / TX2 |
| Broche 24 | RD7 — Digital I/O / RX2 |
| Broche 25 | VSS — Ground reference |
| Broche 26 | VDD — Positive supply voltage (1.8-5.5 V) |
| Broche 27 | RB0 — Digital I/O / interrupt-on-change / AN10 |
| Broche 28 | RB1 — Digital I/O / AN8 |
| Broche 29 | RB2 — Digital I/O / AN9 |
| Broche 30 | RB3 — Digital I/O / AN11 |
| Broche 31 | RB4 — Digital I/O / AN12 |
| Broche 32 | RB5 — Digital I/O / AN13 / CCP5 |
| Broche 33 | RB6 — Digital I/O / ICSPCLK |
| Broche 34 | RB7 — Digital I/O / ICSPDAT |
| Broche 35 | RE0 — Digital I/O / AN6 |
| Broche 36 | RE1 — Digital I/O / AN7 |
| Broche 37 | RE2 — Digital I/O / AN5 alternate |
| Broche 38 | RE3 — Digital I/O / MCLR#/VPP |
| Broche 39 | RA0 — Digital I/O / analog input AN0 |
| Broche 40 | RA1 — Digital I/O / analog input AN1 |
| Broche EP | EP — Exposed thermal pad (must be soldered to ground) |
Applications typiques
PIC18F46K22-I/MV convient pour 7 applications: Industrial Control Panels, Low-Power Battery Sensor Nodes, Building Automation Controllers, Automotive Body Electronics (Non-Safety), USB-less HMI / Display Controllers, Medical Patient Monitoring Accessories, Smart Meter Data Concentrators.
Industrial Control Panels
The PIC18F46K22-I/MV suits industrial HMI and control panel designs where its 64 KB Flash handles multi-language UI strings and 3,968 bytes of RAM run real-time menu state machines. The wide 1.8-5.5 V VDD range accepts unregulated 24 V-to-5 V industrial rails with adequate headroom, while the 12-bit ADC with 28 channels reads multiple sensor inputs (temperature, pressure, flow) simultaneously. Its 35 I/O pins drive LCD segments, keypad matrices, and relay coils. Compared with ARM Cortex-M0+ alternatives, the K22's deterministic 16 MIPS PIC18 pipeline simplifies IEC 61508 functional-safety timing analysis.
Recommandé
Low-Power Battery Sensor Nodes
The PIC18F46K22-I/MV is ideal for battery-powered wireless sensor nodes where its nanoWatt XLP technology drops sleep current below 100 nA with RTCC active. The 64 MHz CPU wakes in microseconds to process sensor data, then returns to sleep - duty-cycling keeps average consumption below 50 uA even with hourly transmissions. The 12-bit ADC reads battery voltage for fuel gauging, and the EUSART interfaces directly with low-power RF transceivers like the MRF89XA. Compared with Cortex-M0+ alternatives, the K22 achieves deeper sleep modes without RTC wake-up overhead.
Recommandé
Building Automation Controllers
The PIC18F46K22-I/MV drives building automation subsystems such as HVAC damper controllers, lighting ballasts, and access-control readers. Its EUSART modules support RS-485 multi-drop BACnet or Modbus communication at 1 Mbps, while the MSSP ports interface with I2C temperature/humidity sensors. The 64 KB Flash accommodates BACnet object dictionaries and scheduling logic without external memory. The -40C to +85C industrial operating range tolerates plenum-temperature environments, and the UQFN-40 package is small enough for inline J-box mounting.
Recommandé
Automotive Body Electronics (Non-Safety)
The PIC18F46K22-I/MV powers non-safety automotive body modules such as seat controllers, mirror adjusters, and interior lighting. Its 35 I/O pins drive multiple motor H-bridges and LED strings via PWM, and the 12-bit ADC reads current-sensing resistors for stall detection. While not AEC-Q100 qualified, the industrial -40C to +85C range and automotive-grade suppliers make it usable in non-regulated body domains. For AEC-Q100 designs, Microchip recommends the PIC18F46K22-I/MVVAO extended-temperature variant.
Recommandé
USB-less HMI / Display Controllers
The PIC18F46K22-I/MV drives character LCD and small graphic OLED panels as a co-MCU in HMI stacks. Its 35 I/O pins support 8-bit parallel LCD interfaces or SPI OLED control with parallel key-scanning, and the 64 KB Flash stores multi-language bitmap tables. The EUSART links to a host processor for command exchange, while the CCP modules generate backlight PWM with software-tuned curves. Compared with full-graphic controllers, the K22 strikes a balance between pin count and cost for sub-display applications.
Recommandé
Medical Patient Monitoring Accessories
The PIC18F46K22-I/MV is used in non-critical medical accessories such as pulse-oximeter cable assemblies, electronic stethoscope modules, and digital thermometer probes. The 12-bit ADC with 28 channels captures multiple bio-sensor signals, while the 64 KB Flash stores calibration tables for sensor compensation. The XLP sleep modes extend battery life for portable devices between chargings. The 1.8-5.5 V VDD range simplifies single-cell Li-Ion or 2xAA power topologies common in medical handhelds.
Recommandé
Smart Meter Data Concentrators
The PIC18F46K22-I/MV functions as a sub-MCU in smart-meter data concentrators, aggregating consumption data from multiple meter endpoints over RS-485 or wireless M-Bus. Its 64 KB Flash supports metering protocol stacks (DLMS/COSEM, M-Bus EN 13757-3), while the 3,968 bytes of RAM buffer bursty meter traffic. The 12-bit ADC reads tamper-detection sensors, and the EUSART modules isolate communication buses. Compared with dedicated metering ASICs, the K22 offers design flexibility at lower NRE cost.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18F46K22-I/MV — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC18F46K22T-I/MV | PIC18F46Q10-I/MV | PIC18F46K42-I/MV | PIC18F46J50-I/MV | PIC18F47Q10-I/MV |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-UQFN (MV) 5x5 mm | 40-UQFN (MV) 5x5 mm | 40-UQFN (MV) 5x5 mm | 40-UQFN (MV) 5x5 mm | 40-UQFN (MV) 5x5 mm | 40-UQFN (MV) 5x5 mm |
| Flash Memory | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 128 KB |
| RAM | 3,968 bytes | 3,968 bytes | 3,625 bytes | 8,192 bytes | 3,808 bytes | 3,625 bytes |
| CPU Speed | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS | 48 MHz / 12 MIPS | 64 MHz / 16 MIPS |
| Operating Voltage | 1.8 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 | 2.0 V to 3.6 V | 1.8 V to 5.5 V |
| ADC | 12-bit / 28 channels | 12-bit / 28 channels | 12-bit / 28 channels | 12-bit / 28 channels | 10-bit / 13 channels | 12-bit / 28 channels |
| USB | No | No | No | No | Yes (USB 2.0 FS) | No |
| Low-Power XLP | Yes (nanoWatt XLP) | Yes (nanoWatt XLP) | Yes (XLP) | Yes (XLP) | No (PIC18J standard) | Yes (XLP) |
Principaux différenciateurs
- Same UQFN-40 MV footprint across Microchip PIC18 K22 / Q10 / K42 / J50 families (vs PIC18F46Q10-I/MV)
- nanoWatt XLP sleep current below 100 nA (vs PIC18F46J50-I/MV)
- 1.8 V to 5.5 V wide VDD range (vs PIC18F46J50-I/MV)
Notes de conception
The 40-UQFN (MV) package has a thermal resistance of approximately 31 C/W (theta_JA, JEDEC EIA/JESD51 standard 4-layer board). For an ambient of +85C and full CPU/IO loading, the junction temperature must remain below +125C. The exposed thermal pad (EP) MUST be soldered to a ground-plane copper pour of at least 1 square cm to keep theta_JA within datasheet bounds. Estimated: at 64 MHz CPU with all I/O switching, internal dissipation is well under 100 mW, leaving substantial margin.
Place a 100 nF decoupling capacitor within 3 mm of each VDD pin (pins 5 and 26). Add a bulk 10 uF tantalum or ceramic capacitor near the package to handle switching transients from internal oscillator transitions. For the UQFN-40 layout, use 0.2 mm traces with 0.4 mm pitch to escape from the QFN perimeter; a 4-layer board with continuous ground plane below the part improves EMI and thermal performance per Microchip AN1292 ('PCB Layout Considerations').
Do not connect the MCLR#/VPP pin (RE3) directly to VDD without a resistor or capacitor; the in-circuit serial programming (ICSP) requires a pull-up to allow the programmer to drive VPP high voltage (typically 8-9 V for Flash programming). When using the internal oscillator, allow at least 1 ms startup time after exiting Sleep before code execution to ensure oscillator stability per datasheet timing parameter Tost. Estimated: Tost at 64 MHz from HFINTOSC is approximately 1 ms.
For EUSART communication above 115200 baud, route the TX/RX traces as differential pairs with characteristic impedance of 50 ohms if cable lengths exceed 10 cm. The MSSP (SPI/I2C) signals are not true differential; for I2C buses above 400 kHz, use 4.7 kohm pull-ups rather than the typical 10 kohm to meet rise-time requirements per UM10204 I2C specification. Add 22 ohm series resistors on SPI clock lines longer than 5 cm to dampen ringing.
Informations de conformité
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - this part targets industrial and consumer applications. For AEC-Q100 designs, Microchip recommends the VAO suffix extended-temperature variant.
