PIC18F43K20-I/MV - 8KB Flash 64MHz 8-bit MCU | Microchip
Teilenummer: PIC18F43K20-I/MV ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $3.85 | $3,85 |
| 10 | $3.46 | $34,60 |
| 100 | $2.78 | $278,00 |
| 500 | $2.35 | $1.175,00 |
| 1.000 | $1.97 | $1.970,00 |
PIC18F43K20-I/MV Übersicht
What is a PIC microcontroller? A PIC (Peripheral Interface Controller) is a family of 8/16/32-bit RISC microcontrollers from Microchip built around a Harvard architecture. The PIC18F family sits in the mid-range tier, balancing code density, peripheral integration and ultra-low-power operation. Microcontrollers in this class combine a CPU core, Flash program memory, RAM, EEPROM, timers, communication peripherals (UART/SPI/I2C) and analog blocks on a single die, forming the smallest possible self-contained computer for embedded control. The PIC18F43K20 belongs to the PIC18F K20 sub-family, distinguished by nanoWatt XLP energy-management modes and 10-bit ADC capability.
Key features include 36 I/O pins with peripheral pin select, four 16-bit timers, one 8-bit timer, two comparators with programmable voltage reference, two CCP modules, an enhanced USART, MSSP for SPI and I2C, a 13-channel 10-bit ADC and an on-chip 1.2 V fixed voltage reference. The 40-pin UQFN package exposes a thermal pad for low thermal resistance, allowing operation at the full -40 C to +85 C industrial temperature range.
Typical applications are portable battery-powered instruments, sensor-interface boards, low-power wireless sensor nodes, USB/serial human-interface devices, and general-purpose embedded control where code density, low sleep current and small PCB footprint are all required.
When designing with this part, ensure the exposed pad is soldered to a sufficiently large copper pour for thermal relief and ground integrity; bypassing VDD with a 100 nF ceramic capacitor placed within 5 mm of the supply pin is recommended for clean ADC and PLL operation.
This page synthesizes current distributor pricing, Microchip PIC18F K20 family cross-references and practical PCB design notes that complement the manufacturer datasheet.
Drop-in-Alternativen für PIC18F43K20-I/MV – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC18F43K20-I/MV (gleiche Bauform und Footprint) – abweichend in ADC, Package, Timers, Operating Temperature Range, Operating Voltage Range.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC18F43K20T-I/MV
✅ Drop-In✓ Auf Lager
$1.59 / Stück
Datenblatt ansehen →PIC18F45K20-I/MV
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC18F46K20-I/MV
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC18F43K22-I/MV
✅ Drop-In✓ Auf Lager
$1.08 / Stück
Datenblatt ansehen →PIC18F26K40-I/MV
✅ Drop-In✓ Auf Lager
$1.18 / Stück
Datenblatt ansehen →PIC18F43K20-I/MV Grenzwerte & elektrische Eigenschaften
| Core Architecture | PIC RISC 8-bit |
| Series | PIC18F K20 / PIC18F43K20 |
| Program Memory (Flash) | 8 KB (4K x 16) |
| SRAM | 768 bytes |
| EEPROM | 256 bytes |
| Max CPU Speed | 64 MHz (16 MIPS, 4 clocks/instruction cycle) |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Operating Temperature (I grade) | -40 C to +85 C |
| Gehäuse | 40-pin UQFN (5x5 mm) with exposed pad (MV) |
| I/O Pins | 36 |
| ADC | 10-bit, up to 13 channels |
| Comparators | 2 rail-to-rail analog comparators |
| Fixed Voltage Reference (FVR) | 1.2 V nominal |
| Timers | 4 x 16-bit, 1 x 8-bit |
| Communication Peripherals | 1x EUSART, 1x MSSP (SPI/I2C) |
| I/O Sink/Source | 25 mA / 25 mA |
| Low-Power Technology | nanoWatt XLP |
| CCP Modules | 2 |
| RoHS | Compliant |
| MSL-Level | 3 (168 hours) |
PIC18F43K20-I/MV 40-pin uqfn (5x5 mm) with exposed pad (mv) Pinbelegungsleitfaden
Pinbelegung für PIC18F43K20-I/MV (40-pin uqfn (5x5 mm) with exposed pad (mv)-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.
Keine detaillierten Pinbelegungsdaten verfügbar für PIC18F43K20-I/MV.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
PIC18F43K20-I/MV ist geeignet für 6 Anwendungs: Battery-Powered Sensor Node, USB / Serial Human-Interface Device, Industrial Control / Sensor Interface Board, Portable Medical Monitoring Device, Home Appliance User Interface, Automotive Accessory and Lighting Module.
Battery-Powered Sensor Node
The PIC18F43K20-I/MV is well matched to battery-powered sensor nodes because its nanoWatt XLP technology enables sleep currents below 1 uA, while 8 KB Flash fits typical ZigBee or LoRa stack-in-application code. Operating from 1.8 V to 3.6 V lets the part run directly from a single lithium coin cell or two alkaline AAs. The 13-channel 10-bit ADC handles multiple analog sensors with no external multiplexer, and the integrated 1.2 V FVR improves absolute ADC accuracy. Designers typically use the MSSP to drive an SPI temperature sensor and the EUSART to push data through a low-power transceiver, with Sleep and Idle modes managed by interrupt-on-change on digital GPIO pins.
Empfohlen
USB / Serial Human-Interface Device
The PIC18F43K20-I/MV can serve as the main MCU in HID peripherals such as custom keyboards, mice, barcode scanners and small instrumentation keypads. The 64 MHz internal oscillator provides reliable USB-FS timing at 48 MHz via software PLL, while the EUSART and MSSP handle USB-to-UART or USB-to-SPI bridging. The 36 I/O pins easily accommodate 8x8 key matrices, indicator LEDs and rotary encoders. At 3.3 V, the 25 mA sink/source capability drives LEDs directly without drivers. The UQFN-40 (MV) package keeps PCB size around 25 mm x 25 mm, ideal for compact plastic enclosures.
Empfohlen
Industrial Control / Sensor Interface Board
In industrial control panels the PIC18F43K20-I/MV aggregates analog and digital inputs, runs Modbus-RTU on the EUSART, and updates local status indicators. The 10-bit ADC with 13 channels accepts 4-20 mA transducer signals through external shunt resistors, while two rail-to-rail analog comparators provide fast over-current or over-voltage detection. The -40 C to +85 C industrial temperature rating suits cabinet-mounted installations. The UQFN exposed pad and wide operating range allow long-term deployment without active cooling. The 8 KB Flash is adequate for PID-style control loops with HMI menu support.
Empfohlen
Portable Medical Monitoring Device
The PIC18F43K20-I/MV fits portable medical accessories such as handheld pulse oximeters, single-parameter patient monitors and drug-delivery pumps where low power and a small PCB are essential. nanoWatt XLP sleep below 100 nA in RTCC mode extends battery life between measurements, while the 13-channel 10-bit ADC reads photodiode, thermistor and pressure-sensor signals. The 1.2 V FVR and ratiometric ADC measurements support accurate SpO2 and NIBP conversions. With 8 KB Flash, the firmware can include averaging filters, alarm thresholds and small LCD menu handling without external memory.
Empfohlen
Home Appliance User Interface
For white-goods user-interface boards the PIC18F43K20-I/MV drives segmented LCD or LED indicators, scans capacitive or matrix keypads and exchanges commands with the main appliance controller over UART. Its 36 I/O lines fit 7-segment digit displays plus indicator LEDs without external drivers, and the EUSART handles main-MCU commands at 115200 baud. nanoWatt XLP idle modes let the front panel keep a clock running on standby at sub-mA current, and the 40-pin UQFN fits behind narrow bezels of ovens, washing machines and dishwashers.
Empfohlen
Automotive Accessory and Lighting Module
In interior lighting, dashboard accessories and aftermarket automotive modules the PIC18F43K20-I/MV controls LED strings, reads switch positions and reports diagnostics. The 64 MHz clock and CCP/PWM modules generate flicker-free LED dimming at 1 kHz to 20 kHz PWM, while the EUSART drives CAN or LIN transceivers for body-network communication. Two rail-to-rail comparators implement battery-voltage monitoring and reverse-polarity protection. Designers targeting -40 C to +125 C should select the E (extended) grade variant instead, but the I (industrial) grade is widely used for cabin-mounted accessories.
