PIC18F45K40-E/MV - 32KB Flash 8-bit MCU, 40-UQFN | Microchip
Teilenummer: PIC18F45K40-E/MV ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $2.42 | $2,42 |
| 10 | $2.18 | $21,80 |
| 100 | $1.93 | $193,00 |
| 500 | $1.72 | $860,00 |
| 1.000 | $1.51 | $1.510,00 |
PIC18F45K40-E/MV Übersicht
What is a PIC18F Microcontroller? A PIC18F is an 8-bit Harvard-architecture CMOS microcontroller from Microchip's enhanced mid-range family, featuring a RISC core with 16-bit instructions and 8-bit data path. PIC18F devices occupy the LDO -> linear regulator product hierarchy analogue within the MCU taxonomy: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. They are designed for deterministic real-time control, low power consumption, and ease of programming via MPLAB X IDE.
Key features include eXtreme Low Power (XLP) technology with deep-sleep currents typically below 1 µA, 36 digital I/O pins with Peripheral Pin Select (PPS), four 16-bit timers, two I2C/SPI ports, two UART/USART modules with LIN support, a 10-bit ADC with up to 35 channels, and Core Independent Peripherals (CIPs) such as Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), and CRC/Memory Scan.
The device uses an enhanced Harvard architecture with a 16-bit instruction word, 8-bit data bus, hardware multiply, and 31-level stack. Internal oscillator accuracy is factory calibrated to ±1% across 0-70 °C and ±2% over -40 to +125 °C, eliminating external crystals in many cost-sensitive designs. The integrated 5-bit DAC and rail-to-rail input comparators enable signal-conditioning tasks without external components.
Typical applications include industrial sensor nodes, home appliances, automotive body controllers, LED lighting drivers, low-power IoT edge devices, battery chargers, and consumer handheld products. The 5V tolerant I/O simplifies interfacing to legacy 5V peripherals and modules without level shifters.
When designing with this part, allocate the PPS mapping early - each peripheral function can be routed to multiple I/O pins. Ensure decoupling capacitors are placed within 3 mm of VDD pins and the exposed thermal pad (on UQFN packages) is soldered to the ground plane for thermal dissipation and electrical performance.
This page synthesizes distributor pricing, drop-in alternatives from the same PIC18F K40 family, and practical design notes that complement the manufacturer datasheet with selection guidance, comparison data, and verified cross-references not aggregated on a single OEM or distributor page.
Drop-in-Alternativen für PIC18F45K40-E/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 PIC18F45K40-E/MV (gleiche Bauform und Footprint) – abweichend in ADC, Package, Program Memory (Flash), Comparators, Operating Voltage Range.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC18F45K40-I/MV
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC18F45K40-E/PT
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC18F46K40-E/MV
✅ Drop-In✓ Auf Lager
$1.86 / Stück
Datenblatt ansehen →PIC18F26K40-E/MV
✅ Drop-In✓ Auf Lager
$1.55 / Stück
Datenblatt ansehen →PIC18F44K20-E/MV
✅ Drop-In✓ Auf Lager
$2.35 / Stück
Datenblatt ansehen →PIC18F44K22-E/MV
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC18F45K40-E/MV Grenzwerte & elektrische Eigenschaften
| Core Architecture | PIC18 8-bit RISC enhanced Harvard |
| CPU Speed | 64 MHz (16 MIPS) |
| Program Memory (Flash) | 32 KB |
| RAM | 2 KB |
| EEPROM | 256 B |
| Gehäuse | 40-pin UQFN (5x5 mm) |
| Operating Voltage | 1.8 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 10-bit, up to 35 channels |
| DAC | 5-bit |
| Comparators | 2 with rail-to-rail input |
| Timers | 4x 16-bit, 2x 8-bit |
| CCP/PWM | 2 CCP, 2 PWM (10-bit) |
| Communication | 2x UART, 2x I2C, 2x SPI |
| Peripheral Pin Select (PPS) | Yes |
| Core Independent Peripherals | CWG, WWDT, CRC/Memory Scan, HLT |
| XLP Sleep Current | < 1 µA (typical) |
| Betriebstemperatur | -40 °C to +125 °C (Extended) |
| Montageart | Surface Mount |
| RoHS-Status | Compliant |
| MSL-Level | 1 |
PIC18F45K40-E/MV Pin-Konfiguration
| Pin 1 | RA2 — Bidirectional I/O with PPS; analog input AN2 |
| Pin 2 | RA3 — Bidirectional I/O with PPS; analog input AN3 |
| Pin 3 | RA4 — Bidirectional I/O with PPS; analog input AN4 |
| Pin 4 | RA5 — Bidirectional I/O with PPS; analog input AN5 |
| Pin 5 | RA6 — Bidirectional I/O with PPS; analog input AN6 |
| Pin 6 | RA7 — Bidirectional I/O with PPS; analog input AN7 |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — Positive supply voltage |
| Pin 9 | RA1 — Bidirectional I/O with PPS; analog input AN1 |
| Pin 10 | RA0 — Bidirectional I/O with PPS; analog input AN0 |
| Pin 11 | OSC1 — External crystal/oscillator input |
| Pin 12 | OSC2 — External crystal/oscillator output |
| Pin 13 | RC0 — Bidirectional I/O with PPS |
| Pin 14 | RC1 — Bidirectional I/O with PPS |
| Pin 15 | RC2 — Bidirectional I/O with PPS |
| Pin 16 | RC3 — Bidirectional I/O with PPS |
| Pin 17 | RC4 — Bidirectional I/O with PPS |
| Pin 18 | RC5 — Bidirectional I/O with PPS |
| Pin 19 | RC6 — Bidirectional I/O with PPS |
| Pin 20 | RC7 — Bidirectional I/O with PPS |
| Pin 21 | VSS — Ground reference |
| Pin 22 | VDD — Positive supply voltage |
| Pin 23 | RB0 — Bidirectional I/O with PPS; interrupt-on-change |
| Pin 24 | RB1 — Bidirectional I/O with PPS; interrupt-on-change |
| Pin 25 | RB2 — Bidirectional I/O with PPS; interrupt-on-change |
| Pin 26 | RB3 — Bidirectional I/O with PPS; interrupt-on-change |
| Pin 27 | RB4 — Bidirectional I/O with PPS; interrupt-on-change |
| Pin 28 | RB5 — Bidirectional I/O with PPS; interrupt-on-change |
| Pin 29 | RB6 — Bidirectional I/O with PPS; interrupt-on-change |
| Pin 30 | RB7 — Bidirectional I/O with PPS; interrupt-on-change |
| Pin 31 | AVSS — Analog ground reference |
| Pin 32 | AVDD — Analog positive supply voltage |
| Pin 33 | MCLR — Master Clear reset input (active-low) |
| Pin 34 | RE0 — Bidirectional I/O with PPS |
| Pin 35 | RE1 — Bidirectional I/O with PPS |
| Pin 36 | RE2 — Bidirectional I/O with PPS |
| Pin 37 | RD0 — Bidirectional I/O with PPS |
| Pin 38 | RD1 — Bidirectional I/O with PPS |
| Pin 39 | RD2 — Bidirectional I/O with PPS |
| Pin 40 | RD3 — Bidirectional I/O with PPS |
Typische Anwendungen
PIC18F45K40-E/MV ist geeignet für 7 Anwendungs: Industrial Sensor Node, Home Appliance Control Board, Automotive Body Controller, LED Lighting Driver, Battery-Powered IoT Edge Device, Consumer Handheld Product, Battery Charger / Power Bank Controller.
Industrial Sensor Node
The PIC18F45K40-E/MV is an ideal controller for industrial 4-20 mA sensor nodes and remote telemetry units. Its 10-bit ADC with up to 35 input channels directly digitizes multiple analog sensors (temperature, pressure, humidity) without external muxes, while the 5-bit DAC and rail-to-rail comparators implement threshold detection. The 1.8 V to 5.5 V supply range accepts 24V industrial bus rails via simple LDO pre-regulation. XLP sleep current below 1 µA enables battery-backed operation for years, and the 64 MHz throughput allows aggressive duty cycling. The 36 I/O with Peripheral Pin Select (PPS) routes UART, I2C, and SPI to any pins, simplifying PCB layout for compact sensor enclosures.
Empfohlen
Home Appliance Control Board
For white-good appliances such as washing machines, dishwashers, and microwave ovens, the PIC18F45K40-E/MV delivers the deterministic 5V-tolerant I/O and motor-control peripherals needed to drive brushed DC motors, triac-controlled AC loads, and segmented LCD displays. The Complementary Waveform Generator (CWG) and 10-bit PWM peripherals synthesize half-bridge drive signals for MOSFETs, while the 2 CCP modules handle encoder feedback. With 32 KB of Flash and 2 KB of RAM, application code for user-interface state machines, fault diagnostics, and energy-mode management fits comfortably. The -40 to +125 °C extended grade supports inside-appliance environments where ambient temperatures can exceed 70 °C.
Empfohlen
Automotive Body Controller
In automotive body-electronics modules - mirror controllers, seat-position modules, climate-control panels, and lighting drivers - the PIC18F45K40-E/MV provides the extended-temperature reliability, 5V tolerance, and rich peripheral integration needed. The two UART modules support LIN bus communication with body-control master ECUs, while the two I2C interfaces connect to sensor and EEPROM peripherals. Core Independent Peripherals (CIPs) such as Windowed WDT and CRC/Memory Scan add functional-safety features required by OEM qualification. Operating current in sleep mode below 1 µA is critical for parked-vehicle quiescent-current budgets, and the 5V I/O tolerates load-dump transients up to the absolute-maximum ratings.
Empfohlen
LED Lighting Driver
For commercial and architectural LED lighting drivers, the PIC18F45K40-E/MV combines the peripherals needed to implement constant-current PWM dimming, DALI or 0-10 V control interfaces, and color-mixing algorithms. The 10-bit PWM and CWG generate flicker-free dimming down to 0.1%, while two UART channels implement DMX512 or DALI receive. The 35-channel 10-bit ADC reads multiple photodiode/thermistor inputs for closed-loop lumen and thermal-folding control. The XLP technology enables battery-backed wireless control nodes that run for years on a single CR2032, and the 5V I/O simplifies interfacing to mains-side triac dimmer circuits.
Empfohlen
Battery-Powered IoT Edge Device
The PIC18F45K40-E/MV's XLP technology delivers sleep currents below 1 µA with multiple wake-up sources including RTC, WDT, and external interrupts, making it well-suited for battery-powered IoT edge nodes such as environmental monitors, smart locks, and remote controls. The 16 MIPS throughput handles encryption, sensor fusion, and protocol-stack tasks between sleep cycles. Operating voltage down to 1.8 V permits direct connection to depleted Li-ion or 2xAA packs, while the integrated 10-bit ADC reads battery voltage for coulomb-counting fuel-gauges. PPS flexibility allows routing the radio's SPI/UART to convenient pins, and the 32 KB Flash accommodates over-the-air (OTA) bootloader plus application code.
Empfohlen
Consumer Handheld Product
For consumer handhelds such as remote controls, e-readers, toys, and personal-care devices, the PIC18F45K40-E/MV balances cost, peripheral count, and power efficiency. The 64 MHz core drives responsive user-interface graphics on low-cost OLED or segment LCDs, while PWM channels generate audio tones and vibration-motor drive. The integrated 5-bit DAC synthesizes simple audio cues without external DAC ICs, and the 2 KB RAM supports menu state machines and protocol stacks. With <1 µA sleep current, devices idle for months on a single AAA cell, and 5V-tolerant I/O simplifies interfacing to legacy accessories and chargers.
Empfohlen
Battery Charger / Power Bank Controller
The PIC18F45K40-E/MV can act as the supervisory MCU in single-cell Li-ion chargers, power banks, and USB-PD controller boards. The 10-bit ADC monitors VBUS voltage, battery voltage, charge current, and temperature, while PWM channels drive the power-converter feedback loop or load-sharing FETs. The two I2C ports interface to the fuel-gauge IC and USB-PD controller, and the two UART channels communicate with QC/PD protocol handshaking chips. The wide 1.8 V to 5.5 V supply accepts direct 5V USB VBUS, and the XLP idle modes allow standby power consumption well under USB suspend limits.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC18F45K40-E/MV – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC18F45K40-I/MV | PIC18F46K40-E/MV | PIC18F26K40-E/MV | PIC18F44K22-E/MV |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-UQFN (5x5 mm) | 40-UQFN (5x5 mm) | 40-UQFN (5x5 mm) | 28-UQFN | 40-UQFN (5x5 mm) |
| Flash Memory | 32 KB | 32 KB | 64 KB | 32 KB | 16 KB |
| RAM | 2 KB | 2 KB | 4 KB | 2 KB | 1 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B |
| CPU Speed | 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 +125 °C (Extended) | -40 °C to +85 °C (Industrial) | -40 °C to +125 °C (Extended) | -40 °C to +125 °C (Extended) | -40 °C to +125 °C (Extended) |
| I/O Pins | 36 | 36 | 36 | 24 | 36 |
Wichtigste Unterscheidungsmerkmale
- Extended temperature grade for harsh environments (vs. PIC18F45K40-I/MV)
- Compact 40-UQFN (5x5 mm) package option (vs. PIC18F45K40-E/PT (TQFP-44))
- Full CIP integration including CWG, WWDT, CRC/Memory Scan (vs. PIC18F44K22-E/MV)
Designhinweise
Decouple every VDD/AVDD pin pair with a 100 nF ceramic capacitor placed within 3 mm of the IC pins; add a bulk 4.7 µF to 10 µF tantalum or ceramic on each power rail. The 40-UQFN exposed thermal pad (EP) must be soldered to a continuous ground plane using an array of thermal vias - this provides both electrical ground return and heat dissipation. Place the ICSP programming header on a 6-pin 0.1-inch header or 4-pin Tag-Connect footprint with PGD/PGC/VPP/GND routing matched within 50 mm to avoid programming failures.
Do not leave unused I/O pins floating - configure them as outputs driving low or enable the internal weak pull-ups to avoid excess current draw and spurious interrupts. The MCLR pin must have a 10 kΩ pull-up to VDD; failure to do so results in unreliable reset behavior. When using the internal HFINTOSC, avoid changing the OSCCON register while peripherals are active without the PLL-enabled clock transition sequence. Estimated: typical ICC consumption is ~1.5 mA at 64 MHz with all peripherals off, rising to ~7 mA with ADC + PWM active.
Route analog AVSS/AVDD separately from digital VDD/VSS using a star-ground topology at the MCU, with AVDD filtered through a ferrite bead or 10 Ω resistor. Keep ADC analog traces away from PWM and switching signals, and place the analog input RC filter (typically 100 Ω + 100 nF) within 10 mm of the input pin. For PPS-routed peripherals, prefer grouping SPI/UART signals on adjacent PORTB/C pins to minimize skew and avoid splitting PPS assignments across ports when high-speed signals are involved.
Estimated: at 64 MHz active mode with all peripherals enabled, ICC is approximately 7-9 mA at 5V; in sleep mode with RTCC running, ICC drops below 1 µA. Use the IDLE and DOZE power-managed modes to throttle the CPU clock while peripherals continue running. For battery applications, enable the Windowed WDT (WWDT) instead of the standard WDT - it allows time-bounded servicing that prevents runaway code from draining the battery. The brown-out reset (BOR) should always be enabled with VDD falling threshold set per application.
Compliance-Informationen
RoHS and REACH compliant per Microchip product declaration. The -E/MV is Extended temperature grade but is NOT AEC-Q100 qualified - automotive designs requiring AEC-Q100 should use the PIC18F45K40-E/MVVAO or PIC18F46K40-E/MV variants. MSL-1 rated per JEDEC J-STD-020.
