PIC18F24K40-I/MV - 8-bit 64MHz MCU, 16KB Flash, 28-UQFN | Microchip
N.º da peça: PIC18F24K40-I/MV ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $2.45 | $2,45 |
| 10 | $2.18 | $21,80 |
| 100 | $1.84 | $184,00 |
| 500 | $1.55 | $775,00 |
| 1.000 | $1.36 | $1.360,00 |
PIC18F24K40-I/MV Visão geral
An 8-bit microcontroller (MCU) is a single-chip computer integrating a central processing unit, non-volatile program storage (Flash/ROM), working RAM, and configurable I/O peripherals. Within the broader semiconductor taxonomy, the PIC18F24K40 sits under the PIC18 family (an 8-bit CISC enhanced mid-range architecture), under the Microchip 8-bit MCU portfolio, and ultimately under the microcontroller category of embedded semiconductors. The 8-bit segment remains the workhorse for cost- and power-sensitive applications where deterministic real-time response, simple toolchains, and ease of programming outweigh raw computational throughput.
Key features include 24 digital I/O pins, a 10-bit ADC with acquisition channel sharing, a 5-bit DAC, two comparators with selectable reference, Zero-Cross Detect (ZCD), a Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), CRC/Memory Scan, Peripheral Pin Select (PPS), and serial interfaces comprising EUSART, SPI, and I2C. XLP technology delivers nanoWatt sleep currents suitable for battery-powered IoT and sensor nodes that spend most of their life in idle or doze modes.
Architecturally, the device uses the enhanced mid-range PIC18 core with a modified Harvard bus and hardware multiplier, with an instruction set tuned for C-compiled code. The CIP block lets timers, PWMs, and communication peripherals operate without CPU intervention, freeing the core for application logic and reducing firmware complexity and BOM cost in motor control, lighting, and power-conversion front-ends.
Typical applications include low-power IoT sensor nodes, LED lighting controllers, battery chargers, small appliances and white goods, automotive body and interior modules (using the -Q1 variant), HVAC controls, and general-purpose 5V embedded logic replacements. Wide 2.3-5.5V operation and robust peripheral integration make it a flexible drop-in upgrade for legacy PIC16F and early PIC18F designs.
When designing with this part, prioritize decoupling with a 100 nF ceramic capacitor close to VDD plus a bulk cap on AVDD, and use PPS early to assign peripheral functions to convenient pins. Verify whether your firmware assumes 28-pin SPDIP/SSOP/SOIC layout versus the UQFN footprint before committing to PCB.
This page synthesizes distributor pricing, drop-in same-package alternatives, application guidance, and design notes that complement (but do not replace) the manufacturer datasheet for design-in evaluation.
Alternativas drop-in para PIC18F24K40-I/MV — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC18F24K40-I/MV (mesmo formato e footprint) — diferindo em Package, ADC, Comparators, DAC, Core.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18F25K40-I/MV
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18F24K40T-I/MV
✅ Drop-In✓ Em estoque
$1.42 / unidade
Ver ficha técnica →PIC18F24K40-E/MV
✅ Drop-In✓ Em estoque
$1.85 / unidade
Ver ficha técnica →PIC18F25K40T-I/MV
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18F26K40-I/MV
✅ Drop-In✓ Em estoque
$1.18 / unidade
Ver ficha técnica →PIC18F46K40-I/MV
✅ Drop-In✓ Em estoque
$2.15 / unidade
Ver ficha técnica →PIC18F24K40-I/MV Classificações máximas e características elétricas
| Core Architecture | PIC18 enhanced mid-range 8-bit |
| Maximum CPU Frequency | 64 MHz |
| Program Memory (Flash) | 16 KB (8K x 16) |
| RAM | 1 KB |
| EEPROM | 256 B |
| Supply Voltage (VDD) | 2.3 V to 5.5 V |
| Digital I/O Pins | 24 |
| ADC | 10-bit |
| DAC | 5-bit |
| Comparators | 2 |
| Timers | Multiple (8-bit and 16-bit, see datasheet) |
| Serial Interfaces | EUSART, SPI, I2C |
| Core Independent Peripherals (CIPs) | CWG, WWDT, CRC/Memory Scan, ZCD, PPS |
| XLP (Extreme Low Power) Technology | Yes (nanoWatt sleep modes) |
| Encapsulamento | 28-UQFN (MV) 4x4 mm |
| Temperatura de operação | -40C to +85C (Industrial, "-I") |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
Configuração de pinos do PIC18F24K40-I/MV
| Pino 1 | RA2 — Digital I/O / analog input / comparator input |
| Pino 2 | RA3 — Digital I/O / analog input / comparator input |
| Pino 3 | RA4 — Digital I/O / analog input / DAC output reference |
| Pino 4 | RA5 — Digital I/O / analog input |
| Pino 5 | RA6 — Digital I/O / oscillator output |
| Pino 6 | RA7 — Digital I/O / oscillator input |
| Pino 7 | VSS — Ground reference |
| Pino 8 | RB0 — Digital I/O / interrupt-on-change / programming |
| Pino 9 | RB1 — Digital I/O / interrupt-on-change |
| Pino 10 | RB2 — Digital I/O / interrupt-on-change |
| Pino 11 | RB3 — Digital I/O / interrupt-on-change |
| Pino 12 | RB4 — Digital I/O / interrupt-on-change |
| Pino 13 | RB5 — Digital I/O / interrupt-on-change / programming |
| Pino 14 | RB6 — Digital I/O / interrupt-on-change / ICD clock |
| Pino 15 | RB7 — Digital I/O / interrupt-on-change / ICD data |
| Pino 16 | AVDD — Analog supply voltage |
| Pino 17 | AVSS — Analog ground |
| Pino 18 | RC0 — Digital I/O / analog input |
| Pino 19 | RC1 — Digital I/O / analog input |
| Pino 20 | RC2 — Digital I/O / analog input / comparator output |
| Pino 21 | RC3 — Digital I/O / analog input |
| Pino 22 | RC4 — Digital I/O / analog input |
| Pino 23 | RC5 — Digital I/O / analog input |
| Pino 24 | RC6 — Digital I/O / EUSART TX |
| Pino 25 | RC7 — Digital I/O / EUSART RX |
| Pino 26 | RD0 — Digital I/O / enhanced PWM |
| Pino 27 | RD1 — Digital I/O / enhanced PWM |
| Pino 28 | VDD — Digital supply voltage |
Aplicações típicas
PIC18F24K40-I/MV é adequado para 7 aplicaçãos: Battery-Powered IoT Sensor Nodes, LED Lighting Controllers, Small Appliance and White Goods Control, Battery Chargers and Power Management Front-Ends, Automotive Body/Interior Modules (AEC-Q100 variant), HVAC and Fan Control, General-Purpose 5V Embedded Logic Replacement.
Battery-Powered IoT Sensor Nodes
The PIC18F24K40-I/MV suits battery-powered IoT sensor nodes thanks to its XLP nanoWatt sleep currents and wide 2.3 V to 5.5 V supply range, both verified in the DS40001784G datasheet. With its 10-bit ADC and internal voltage reference, the device can directly digitize thermistor, photo-sensor, or battery-voltage signals without external components. In a typical 3.3 V coin-cell node, the MCU wakes every few seconds, samples, transmits via EUSART/SPI-connected radio, and returns to sleep, drawing only nanoAmperes between events - extending battery life into the multi-year range.
Recomendado
LED Lighting Controllers
The PIC18F24K40-I/MV fits LED lighting controllers because of its Complementary Waveform Generator (CWG) and PWM peripherals that drive MOSFET half-bridges without CPU load, per the Microchip PIC18(L)F24-25K40 datasheet (DS40001784G). The 5-bit DAC and two comparators enable closed-loop current regulation for constant-current LED strings, while ZCD (Zero-Cross Detect) supports TRIAC-dimmable AC input stages. Designers use this MCU as a low-cost alternative to dedicated LED-driver ICs in dimmable downlights and linear fixtures.
Recomendado
Small Appliance and White Goods Control
For small appliances (coffee makers, blenders, air purifiers) and white-goods user-interface boards, the PIC18F24K40-I/MV offers enough peripherals (EUSART, SPI, I2C, ADC, PWM) to replace multiple discrete components. According to the DS40001784G datasheet, its wide 2.3 V to 5.5 V VDD range tolerates unregulated 5 V wall-adapter supplies, and the XLP idle mode keeps standby power below regulatory thresholds. The 28-UQFN (MV) package suits compact UI PCBAs where SPDIP/SSOP would be too tall.
Recomendado
Battery Chargers and Power Management Front-Ends
The PIC18F24K40-I/MV works well as the supervisory MCU in lithium-ion or lead-acid charger designs, monitoring voltage/current via its 10-bit ADC and 5-bit DAC, while PWM channels drive the synchronous-rectifier control loop. The CWG (Complementary Waveform Generator) can generate dead-band-aware complementary PWMs for half-bridge converters without software overhead, as documented in DS40001784G. Two on-chip comparators enable primary-side over-current protection with sub-microsecond response.
Recomendado
Automotive Body/Interior Modules (AEC-Q100 variant)
For non-safety automotive body and interior modules - HVAC panel controls, ambient lighting, seat controllers - the AEC-Q100-qualified PIC18F24K40T-I/MVQ1 variant of this die is specified to -40C to +125C and PPAP-documented per Microchip's automotive grade guidelines. The K40 CIP block (CWG, ZCD, WWDT) reduces firmware complexity for body controllers, and the 28-UQFN (MV) footprint handles under-dash vibration environments. Designers pair it with CAN/LIN transceivers over EUSART for in-vehicle networking.
Recomendado
HVAC and Fan Control
The PIC18F24K40-I/MV targets HVAC control applications where multi-channel PWM, ADC monitoring, and serial communications are required. According to the DS40001784G datasheet, the CWG can produce complementary PWM for three-phase or BLDC fan commutation with hardware dead-band insertion, and the 10-bit ADC reads thermistor and pressure-sensor feedback for variable-speed blower control. Sleep mode plus XLP idle make it economical for always-listening thermostats and zone controllers.
Recomendado
General-Purpose 5V Embedded Logic Replacement
The PIC18F24K40-I/MV is widely used as a modern replacement for legacy PIC16F and early PIC18F designs because the K40 family preserves the classic PIC18 instruction set while adding XLP low-power modes and Core Independent Peripherals. With 5 V tolerance across all pins and the same 28-pin footprint options (SP, SO, SS, ML, MV), it serves as a pin-compatible upgrade path for existing 5 V designs without PCB rework, per the DS40001784G migration guidance.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18F24K40-I/MV — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC18F25K40-I/MV | PIC18F24K40T-I/MV | PIC18F24K40-E/MV | PIC18F25K40T-I/MV | PIC18F26K40-I/MV | PIC18F46K40-I/MV |
|---|---|---|---|---|---|---|---|
| Package | 28-UQFN (MV) 4x4 mm | 28-UQFN (MV) 4x4 mm - same | 28-UQFN (MV) 4x4 mm - same | 28-UQFN (MV) 4x4 mm - same | 28-UQFN (MV) 4x4 mm - same | 28-UQFN (MV) 4x4 mm - same | 28-UQFN (MV) 4x4 mm - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Flash Memory | 16 KB | 32 KB | 16 KB | 16 KB | 32 KB | 64 KB | 64 KB |
| RAM | 1 KB | 2 KB | 1 KB | 1 KB | 2 KB | 2 KB | 3 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 1024 B | 1024 B |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Supply Voltage Range | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Digital I/O Pins | 24 | 24 | 24 | 24 | 24 | 24 | 36 |
| Drop-in Compatibility | Reference | Direct - more Flash | Direct - identical die | Direct - higher temp grade | Direct - more Flash, T&R | Direct - much more Flash | Direct - higher I/O count |
Principais diferenciais
- Memory-doubled drop-in upgrade within same package (vs PIC18F25K40-I/MV)
- Extended-temperature option in identical package (vs PIC18F24K40-E/MV)
- Core Independent Peripherals reduce firmware complexity (vs PIC18F24K22 (legacy K22))
Notas de projeto
Place a 100 nF ceramic decoupling capacitor within 5 mm of each VDD/AVDD pin and a bulk 1 uF to 10 uF tantalum or ceramic cap on the VDD rail, as recommended by the Microchip PIC18(L)F24-25K40 datasheet (DS40001784G). For battery-powered designs, route the MV package's no-exposed-pad leadframe to a clean ground plane; do not assume a thermal pad exists. Verify in XLP sleep mode that the BOR and watchdog are off-state or properly clocked from the low-power internal oscillator to achieve nanoAmpere-level sleep current.
The 28-UQFN (MV) package is a 4x4 mm leadframe with 0.4 mm pitch lands; use NSMD pads with at least 0.05 mm solder-mask expansion to ensure reliable reflow. Keep analog traces (AVDD, AVSS, ADC inputs) short and isolated from PWM and digital switching signals, and route the crystal traces symmetrically within 5 mm of the OSC pins. PPS (Peripheral Pin Select) is your friend - assign EUSART/SPI/I2C pins to the most PCB-convenient locations before laying out the schematic.
Do not assume 28-UQFN (MV) is footprint-compatible with 28-SSOP (SS) or 28-SOIC (SO) variants - the land pattern differs and PCB adapters are required. Always verify the exact ordering code suffix (SP, SO, SS, ML, MV) before committing to PCB layout. Also, the PIC18F24K40 has a different memory map and peripheral register layout than the older PIC18F24K22 - do not assume firmware portability without checking the migration guide in the datasheet.
At 64 MHz core clock with peripherals active, the PIC18F24K40 typically draws ~15 mA from VDD = 3.3 V. The 28-UQFN (MV) package has no exposed thermal pad, so heat is conducted only through the leadframe into PCB copper pours. Estimated: with 1 sq inch of 2 oz copper pour on VSS/VDD, the junction-to-ambient thermal resistance is approximately 60 C/W, giving ~1 C rise per 17 mW - well within the 125 C max junction temperature for typical MCU workloads.
Informações de conformidade
RoHS and REACH compliant per Microchip product page. The -I/MV variant is industrial grade (-40C to +85C); choose the -Q1 suffix for AEC-Q100 automotive qualification. Lead-free and halogen-free per Microchip's environmental compliance documentation.
