PIC18F43K22T-I/PT - 8-bit 64MHz 8KB Flash MCU | Microchip
Référence : PIC18F43K22T-I/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $2.95 | $2,95 |
| 10 | $2.65 | $26,50 |
| 100 | $2.3 | $230,00 |
| 500 | $2.05 | $1 025,00 |
| 1 000 | $1.85 | $1 850,00 |
PIC18F43K22T-I/PT Présentation
An 8-bit microcontroller (MCU) is a single-chip processor that integrates a CPU, program memory, data memory, and peripherals into one package. The PIC18F family combines a RISC-based Harvard architecture with rich peripheral integration, sitting between basic PIC16 MCUs and higher-end 16-bit dsPIC/PIC24 devices. The 'XLP' (eXtreme Low Power) designation indicates nanoWatt technology, with sleep currents as low as the tens-of-nA range, making the family well suited for battery-powered designs.
Key features of the PIC18F43K22 include: up to 36 I/O pins, 14-channel 10-bit ADC with computation, two analog comparators, two Enhanced USART modules, two MSSP (SPI/I2C) modules, four 16-bit timers plus three CCP and three ECCP capture/compare/PWM modules, and an internal 16 MHz oscillator with PLL support up to 64 MHz. The 64 MHz instruction-cycle performance delivers 16 MIPS throughput, providing ample headroom for sensor-fusion and control loops.
The architecture combines a modified Harvard bus with a 16-bit instruction word and an 8-bit data path, an 8-level hardware stack, and an interrupt controller supporting priority levels with hardware context saving. Internal oscillator accuracy is trimmed to within +/-2% across voltage and temperature, allowing designs to omit an external crystal in many cases. The integrated 10-bit ADC provides automatic acquisition and channel-scanning modes, easing firmware overhead.
Typical applications include industrial control panels, HVAC sensor nodes, low-power remote sensor nodes, USB/serial interface bridges, LED driver controllers, and small home appliances. Automotive body electronics and aftermarket gauge clusters are also supported via the part's recommended-for-automotive status (special order codes apply).
When designing with this device, note the 5V-tolerant digital inputs, the need for proper decoupling (100 nF + 1 uF bulk) near VDD/AVDD, and the fact that the analog reference voltage must be sourced from a low-noise regulator if ADC accuracy below 1 LSB drift is required. Migrating between 28/40/44-pin K22 variants requires only a recompile because the family shares a common peripheral set.
Alternatives de remplacement direct pour PIC18F43K22T-I/PT — 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 PIC18F43K22T-I/PT (même facteur de forme et même empreinte) — différant par Package, Timers, ADC, Operating Temperature, Core.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18F43K22-I/PT
✅ Remplacement direct✓ En stock
$1.95 / unité
Voir la fiche technique →PIC18F43K22T-I/ML
✅ Remplacement direct✓ En stock
$1.78 / unité
Voir la fiche technique →PIC18F43K22-I/MV
✅ Remplacement direct✓ En stock
$1.08 / unité
Voir la fiche technique →PIC18F43K22-E/PT
✅ Remplacement direct✓ En stock
$2.18 / unité
Voir la fiche technique →PIC18F43K20T-I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F4331-I/PT
✅ Remplacement direct✓ En stock
$3.05 / unité
Voir la fiche technique →PIC18F45Q10
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F43K22T-I/PT Valeurs maximales et caractéristiques électriques
| Core Architecture | PIC18 8-bit RISC (Harvard) |
| Family | PIC18 XLP 18K (PIC18F2X/4XK22) |
| Maximum CPU Frequency | 64 MHz (16 MIPS) |
| Program Memory (Flash) | 8 KB (4K x 16) |
| Data RAM | 768 bytes |
| Data EEPROM | 256 bytes (per datasheet family, see note) |
| Operating Voltage Range | 2.3 V to 5.5 V (Datasheet reference 4.2 to 5.5 V for LF/HF variants) |
| I/O Pins | 36 |
| ADC | 10-bit, up to 28 channels |
| Analog Comparators | 2 |
| UART Modules | 2 (Enhanced USART) |
| SPI Modules | 2 (via MSSP) |
| I2C Modules | 2 (via MSSP) |
| Timers | Four 16-bit + three 8-bit |
| CCP/ECCP | 3 CCP + 3 ECCP |
| Internal Oscillator | Yes (16 MHz with PLL, software selectable) |
| Température de fonctionnement | -40C to +85C (Industrial, 'I') |
| Boîtier | 44-pin TQFP (PT), 10x10 mm |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
| Recommended for Automotive | Yes (special ordering codes required) |
Configuration des broches de PIC18F43K22T-I/PT
| Broche 1 | RB7 — I/O port RB7 / KBI3 / PGC (ICSP clock) |
| Broche 2 | RB6 — I/O port RB6 / KBI2 / PGD (ICSP data) |
| Broche 3 | RB5 — I/O port RB5 / KBI1 |
| Broche 4 | RB4 — I/O port RB4 / KBI0 |
| Broche 5 | RB3 — I/O port RB3 / CCP2 |
| Broche 6 | RB2 — I/O port RB2 / CCP1 |
| Broche 7 | RB1 — I/O port RB1 / RX2/DT2 |
| Broche 8 | RB0 — I/O port RB0 / INT0 / FLT0 |
| Broche 9 | VSS — Ground |
| Broche 10 | VDD — Positive supply (2.3 V to 5.5 V) |
| Broche 11 | RC7 — I/O port RC7 / RX1/DT1 |
| Broche 12 | RC6 — I/O port RC6 / TX1/CK1 |
| Broche 13 | RC5 — I/O port RC5 / SDO2 |
| Broche 14 | RC4 — I/O port RC4 / SDI2/SDA2 |
| Broche 15 | RC3 — I/O port RC3 / SCK2/SCL2 |
| Broche 16 | RC2 — I/O port RC2 / ECCP1 |
| Broche 17 | RC1 — I/O port RC1 / ECCP2 / T3CKI |
| Broche 18 | RC0 — I/O port RC0 |
| Broche 19 | RD7 — I/O port RD7 / CCP4 |
| Broche 20 | RD6 — I/O port RD6 / TX2/CK2 |
| Broche 21 | RD5 — I/O port RD5 |
| Broche 22 | RD4 — I/O port RD4 |
| Broche 23 | RD3 — I/O port RD3 |
| Broche 24 | RD2 — I/O port RD2 |
| Broche 25 | RD1 — I/O port RD1 / IC2 |
| Broche 26 | RD0 — I/O port RD0 / IC1 |
| Broche 27 | RE3 — I/O port RE3 |
| Broche 28 | RE2 — I/O port RE2 |
| Broche 29 | RE1 — I/O port RE1 |
| Broche 30 | RE0 — I/O port RE0 |
| Broche 31 | MCLR — Master Clear (reset, active low) |
| Broche 32 | RA7 — I/O port RA7 / CLKI |
| Broche 33 | RA6 — I/O port RA6 / CLKO / OSC2 |
| Broche 34 | RA5 — I/O port RA5 / AN4 / SS1 |
| Broche 35 | RA4 — I/O port RA4 / T0CKI |
| Broche 36 | RA3 — I/O port RA3 / AN3 / VREF+ |
| Broche 37 | RA2 — I/O port RA2 / AN2 / VREF- |
| Broche 38 | RA1 — I/O port RA1 / AN1 / C1INC |
| Broche 39 | RA0 — I/O port RA0 / AN0 / C1INA |
| Broche 40 | VSS — Ground (second) |
| Broche 41 | AVDD — Analog positive supply |
| Broche 42 | AVSS — Analog ground |
| Broche 43 | RA5 — (see pin 34 - alternate assignment documented in datasheet) |
| Broche 44 | OSC1 — External oscillator input / RA7 alt |
Applications typiques
PIC18F43K22T-I/PT convient pour 7 applications: Industrial Control Panel, Low-Power Remote Sensor Node, HVAC Sensor and Controller, Automotive Body Electronics, USB / Serial Bridge Device, LED Lighting and Signage Controller, Small Home Appliance Controller.
Industrial Control Panel
The PIC18F43K22T-I/PT is well suited to industrial control panels where 36 I/O pins drive relays, switches, LEDs, keypads, and indicator lamps while maintaining deterministic response to operator input. The 64 MHz (16 MIPS) core handles debounced key scanning, multi-channel ADC monitoring of analog sensor inputs, and Modbus RTU polling over one of the two Enhanced USART ports, with ample headroom for custom state machines. The wide 2.3 V to 5.5 V supply allows direct connection to 24 V-derived 5 V or 3.3 V rails, while nanoWatt XLP sleep modes drop the standby current to tens of nA between operator actions, extending the lifetime of battery-backed indicator panels. The 44-pin TQFP footprint is easy to assemble on standard 2-layer FR4 PCBs and supports both point-to-point wiring harnesses and ribbon-cable interconnect to daughter boards.
Recommandé
Low-Power Remote Sensor Node
Battery-powered wireless sensor nodes leverage the PIC18F43K22T-I/PT nanoWatt XLP technology to achieve multi-year battery life on a pair of AA cells or a single Li-ION cell. Sleep currents drop into the tens-of-nA range with the RTCC running, allowing the MCU to wake every few seconds to read a thermistor, photodiode, or gas-sensor via the 10-bit ADC. The 64 MHz core wakes from sleep in microseconds, computes an FFT or running average, and transmits over an SPI-controlled LoRa or sub-GHz radio before returning to sleep. The 2.3 V minimum input lets the design ride cell voltage all the way down to near-end-of-life, and the 768-byte RAM comfortably holds a 32-sample window plus radio frame buffer.
Recommandé
HVAC Sensor and Controller
The PIC18F43K22T-I/PT fits HVAC control boards that need simultaneous temperature, humidity, and pressure sensing along with relay or triac output control for fans, compressors, and dampers. The 14-channel 10-bit ADC reads thermistor and ratiometric pressure transducers, while the three ECCP modules generate zero-cross-switched triac drive waveforms for proportional fan speed control. The second Enhanced USART supports Modbus RTU communication with a building-management system, while the I2C bus reads a digital humidity sensor and an EEPROM setpoint memory. NanoWatt XLP technology minimizes standby draw when the HVAC system is idle, helping meet energy-star and ErP standby targets without sacrificing wakeup latency.
Recommandé
Automotive Body Electronics
The PIC18F43K22T-I/PT is recommended for automotive body electronics applications such as interior lighting controllers, mirror-position modules, seat-controller nodes, and HVAC blowers, where the wide operating temperature range and robust peripheral mix drive board consolidation. The two Enhanced USARTs connect to LIN bus transceivers for body-domain networking, while the ECCP modules drive PWM-controlled LED strings with hardware fault handling. The integrated 10-bit ADC with computation offloads windowed monitoring of battery voltage, current sense, and thermistor feedback. Automotive-grade screening with the appropriate ordering codes is recommended, although the standard industrial variant supports aftermarket designs.
Recommandé
USB / Serial Bridge Device
The PIC18F43K22T-I/PT serves as a USB-to-UART or USB-to-SPI/I2C bridge, leveraging the 64 MHz instruction cycle to handle full-speed USB packetization alongside high-throughput peripheral translation. With a low-cost external 12 MHz crystal and PLL, the MCU presents a CDC-ACM virtual COM port on the host while transparently forwarding data to a downstream MCU or sensor network over UART or SPI. The 8 KB Flash comfortably stores USB descriptors and HID/COM class stacks, while the 768-byte RAM accommodates USB endpoint buffers plus framing logic. Industrial users benefit from the 2.3 V to 5.5 V input range, which lets the bridge power from the USB VBUS rail or a downstream logic rail.
Recommandé
LED Lighting and Signage Controller
The PIC18F43K22T-I/PT drives DMX512 and SPI-controlled LED chains, where the 64 MHz core sustains up to 800 kbps DMX refresh rates while concurrently servicing on-board diagnostics and display updates. The three ECCP modules generate independent PWM outputs for RGB channels, while the MSSP ports daisy-chain APA102 or WS2812-style LED strips at high refresh rates with DMA-friendly SPI bursts. NanoWatt XLP sleep lets the controller shut down LED strings when the venue is closed, dropping to sub-uA standby. The 44-pin TQFP package gives ample pin budget for keypad, status LED, and I2C ambient-light sensor integration without external logic.
Recommandé
Small Home Appliance Controller
The PIC18F43K22T-I/PT drives small kitchen and household appliances such as coffee machines, induction cooktops, and washing-machine sub-modules, where deterministic control and rich peripheral integration replace discrete logic. The 10-bit ADC reads NTC thermistors and current sense resistors, while the ECCP modules generate zero-cross-switched and phase-angle-controlled triac drive for heating elements and pumps. The second USART connects to a touch-panel controller or a Wi-Fi/BLE module for app-driven control. The 2.3 V to 5.5 V supply range supports both 3.3 V logic and 5 V analog sensor interfaces from a single MCU, reducing BOM and PCB area.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18F43K22T-I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC18F43K22-I/PT | PIC18F43K22T-I/ML | PIC18F43K22-E/PT | PIC18F43K20T-I/PT | PIC18F45Q10 |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (PT) | 44-pin TQFP (PT) | 44-pin QFN (ML) | 44-pin TQFP (PT) | 44-pin TQFP (PT) | 44-pin TQFP |
| CPU Speed | 64 MHz (16 MIPS) | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Flash | 8 KB | 8 KB | 8 KB | 8 KB | 16 KB (+100%) | 32 KB |
| RAM | 768 bytes | 768 bytes | 768 bytes | 768 bytes | 1024 bytes (+33%) | 2 KB |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C | -40C to +85C | -40C to +125C (E grade) | -40C to +85C | -40C to +125C |
| ADC Channels | Up to 28 channels, 10-bit | Up to 28 ch, 10-bit | Up to 28 ch, 10-bit | Up to 28 ch, 10-bit | Up to 28 ch, 10-bit | Up to 24 ch, 12-bit |
| nanoWatt XLP | Yes | Yes | Yes | Yes | Yes | Yes |
| Lifecycle Status | Active (newer PIC18F45Q10 recommended) | Active | Active | Active | Active | Active (preferred) |
| Unit Price (1 pc, indicative) | $2.95 | $2.95 (Tray, comparable) | $2.95 (same die) | $3.10 (E grade premium) | $3.20 (16 KB Flash) | $3.50 (newer CIPs) |
Principaux différenciateurs
- Same-family TQFP variants on Tray for low-volume prototyping (vs PIC18F43K22-I/PT)
- Higher-density QFN package for space-constrained designs (vs PIC18F43K22T-I/ML)
- Extended temperature for harsh environments (vs PIC18F43K22-E/PT)
- Double Flash memory for firmware headroom (vs PIC18F43K20T-I/PT)
- Modern CIP migration path with 12-bit ADC (vs PIC18F45Q10)
Notes de conception
Place a 100 nF ceramic decoupling capacitor as close as possible to each VDD/AVDD pin pair, with a shared 1 µF to 10 µF bulk capacitor on the supply rail. The PIC18F43K22T-I/PT supports separate AVDD/AVSS for ADC noise isolation - route AVSS to a quiet ground island if ADC accuracy below 1 LSB is required. Use a ferrite bead between VDD and AVDD when the digital rails are noisy, and reference AVDD through a low-noise LDO such as MCP1700.
The 44-pin TQFP (PT) footprint uses 0.8 mm pitch with a 10x10 mm body. Route signals on inner layers to escape the high pin density, and use a ground pour under the package for thermal dissipation. ICSP pins (RB6/RB7) must be accessible without crossing other signal traces to allow in-circuit programming and debugging. The exposed thermal pad (if any) should be soldered to a copper pour tied to VSS.
Do not omit the MCLR pull-up resistor (typically 10 kΩ to VDD) - leaving MCLR floating causes erratic resets under noise. The configuration words (CONFIG1H-4L) must be programmed with valid oscillator and watchdog settings, or the part may not start. When migrating between PIC18F4XK22 variants, validate the analog channel mapping - although most peripherals are pin-compatible, the ADC channel assignments shift with package pin count.
Estimated: at 64 MHz / 5 V operation, the PIC18F43K22T-I/PT core current is typically 6 mA, dissipating approximately 30 mW. With a TQFP theta_JA around 50 C/W, junction temperature rise is roughly 1.5 C above ambient. Thermal design is rarely a concern for normal MCU operation; however, sustained high-current GPIO sourcing (e.g., 25 mA per pin with 36 I/O loaded) can add tens of mW and should be derated for elevated ambient.
Informations de conformité
RoHS and REACH compliant per Microchip product page. Recommended for automotive designs with appropriate ordering codes; AEC-Q100 qualification is achieved via specific automotive part variants.