PIC18F25K42T-E/SSVAO - 32KB Flash 8-bit MCU, AEC-Q100 | Microchip
N.º de pieza: PIC18F25K42T-E/SSVAO ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.85 | $3,85 |
| 10 | $3.47 | $34,70 |
| 100 | $3.04 | $304,00 |
| 500 | $2.71 | $1.355,00 |
| 1.000 | $2.4 | $2.400,00 |
PIC18F25K42T-E/SSVAO Descripción general
An 8-bit microcontroller (MCU) is a single-chip computer built around a CPU with an 8-bit data path, on-chip Flash for program storage, RAM for variables, EEPROM for non-volatile data, and a rich peripheral set including timers, ADC, communication interfaces, and Core Independent Peripherals (CIPs). Within the broader taxonomy, the PIC18F25K42T-E/SSVAO belongs to: microcontroller -> embedded MCU -> PIC18 family -> PIC18 K-series -> PIC18(L)FxxK42 family -> 28-pin K42 sub-family -> automotive-grade (AEC-Q100) variants. This hierarchy is what distinguishes it from 16-bit dsPIC and 32-bit ARM Cortex-M competitors from other vendors.
The key feature set includes a 12-bit differential ADC with Computation (ADC2), a 5-bit DAC, on-chip DMA, three analog comparators, a 16-bit PWM, four Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), Hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT), CRC/Memory Scan, and Peripheral Pin Select (PPS) for flexible signal routing. CIPs let designers offload logic to hardware, reducing CPU wake events and extending battery life in always-on applications.
On the architecture side, this MCU uses Microchip's enhanced mid-range 8-bit CPU core with a 16-bit instruction word and an 8-level hardware stack, paired with a Harvard bus that lets the CPU fetch from Flash while reading data from RAM. The XLP nanoWatt technology adds multiple idle/sleep modes and ultra-low-power peripherals such as RTCC, HLVD, and WWDT, enabling years of operation from a single coin cell when properly configured.
Typical applications for the PIC18F25K42T-E/SSVAO span the automotive AEC-Q100 landscape: body controllers, sensor interfaces, LED lighting modules, HVAC actuators, BCM auxiliary functions, and LIN-connected nodes. Industrial and consumer variants in the same family address general-purpose motor control, IoT end nodes, and battery-powered sensing.
When designing with this device, ensure proper decoupling (100 nF + bulk cap close to VDD/AVDD/VBAT) and configure unused pins as outputs low to minimize leakage. The PPS peripheral must be locked before entering sleep to avoid accidental peripheral remap after a watchdog reset.
This page synthesizes distributor pricing, AEC-Q100 cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternativas directas para PIC18F25K42T-E/SSVAO — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC18F25K42T-E/SSVAO (mismo factor de forma y huella) — difiere en ADC, Package, DAC, Operating Temperature, Program Memory (Flash).
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC18F25K42-E/SSVAO
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC18F25K42T-E/SS
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC18F25K42-I/SS
✅ Sustitución directa✓ En stock
$1.78 / unidad
Ver hoja de datos →PIC18F25K40-E/SSVAO
✅ Sustitución directa✓ En stock
$1.92 / unidad
Ver hoja de datos →PIC18F25K40T-I/SS
✅ Sustitución directa✓ En stock
$1.45 / unidad
Ver hoja de datos →PIC18F25K42T-E/SSVAO Valores máximos y características eléctricas
| Product Family | PIC18 (L)FxxK42 |
| Core | PIC18 8-bit enhanced mid-range |
| Program Flash Memory | 32 KB |
| SRAM | 2 KB |
| EEPROM | 256 bytes |
| Maximum CPU Frequency | 64 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V |
| Encapsulado | 28-pin SSOP (5.30 mm / 0.209" width) |
| Tipo de montaje | Surface Mount |
| Temperatura de funcionamiento | -40 C to +125 C (automotive grade, "E") |
| ADC | 12-bit differential with Computation (ADC2) |
| DAC | 5-bit |
| DMA Channels | Yes, on-chip |
| Core Independent Peripherals | CLC, CWG, HLT, WWDT, CRC/Memory Scan, PPS |
| Communication Interfaces | UART, SPI, I2C (per family datasheet DS40001869) |
| AEC-Q100 Grade | Qualified (automotive, "VAO" suffix) |
| Lead-Free / RoHS | Lead-free finish; RoHS status per manufacturer page |
Configuración de pines de PIC18F25K42T-E/SSVAO
| Pin 1 | RA0/IOC0/ANA0/ADACT0 — PORTA bit 0 / interrupt-on-change / analog input / ADC trigger |
| Pin 2 | RA1/IOC1/ANA1 — PORTA bit 1 / IOC / analog input 1 |
| Pin 3 | RA2/IOC2/ANA2 — PORTA bit 2 / IOC / analog input 2 |
| Pin 4 | RA3/IOC3/ANA3/VREF+ — PORTA bit 3 / IOC / analog input 3 / VREF+ |
| Pin 5 | RA4/IOC4/ANA4 — PORTA bit 4 / IOC / analog input 4 |
| Pin 6 | RA5/IOC5/ANA5 — PORTA bit 5 / IOC / analog input 5 |
| Pin 7 | RA6/IOC6/OSC2/CLKOUT — PORTA bit 6 / IOC / OSC2 / CLKOUT |
| Pin 8 | RA7/IOC7/OSC1/CLKIN — PORTA bit 7 / IOC / OSC1 / CLKIN |
| Pin 9 | VSS — Ground reference |
| Pin 10 | RB0/IOC8/ANB0/FLT0/CCP2 — PORTB bit 0 / IOC / analog / PWM fault / CCP2 |
| Pin 11 | RB1/IOC9/ANB1/CCP1 — PORTB bit 1 / IOC / analog / CCP1 |
| Pin 12 | RB2/IOC10/ANB2 — PORTB bit 2 / IOC / analog 2 |
| Pin 13 | RB3/IOC11/ANB3 — PORTB bit 3 / IOC / analog 3 |
| Pin 14 | RB4/IOC12/ANB4 — PORTB bit 4 / IOC / analog 4 |
| Pin 15 | RB5/IOC13/ANB5/CLCIN3 — PORTB bit 5 / IOC / analog 5 / CLC input 3 |
| Pin 16 | RB6/IOC14/ICSPCLK — PORTB bit 6 / IOC / ICD clock (programming/debug) |
| Pin 17 | RB7/IOC15/ICSPDAT — PORTB bit 7 / IOC / ICD data (programming/debug) |
| Pin 18 | VSS — Ground reference (second VSS pin) |
| Pin 19 | VDD — Positive supply voltage |
| Pin 20 | RC0/SOSCO — PORTC bit 0 / secondary oscillator output (32 kHz crystal) |
| Pin 21 | RC1/SOSCI — PORTC bit 1 / secondary oscillator input |
| Pin 22 | RC2 — PORTC bit 2 / general digital I/O (PPS-mappable) |
| Pin 23 | RC3 — PORTC bit 3 / general digital I/O (PPS-mappable) |
| Pin 24 | RC4 — PORTC bit 4 / general digital I/O (PPS-mappable) |
| Pin 25 | RC5 — PORTC bit 5 / general digital I/O (PPS-mappable) |
| Pin 26 | RC6 — PORTC bit 6 / general digital I/O (PPS-mappable) |
| Pin 27 | RC7 — PORTC bit 7 / general digital I/O (PPS-mappable) |
| Pin 28 | MCLR/RE3 — Master Clear (reset) input; can be disabled as RE3 (digital input only) |
Aplicaciones típicas
PIC18F25K42T-E/SSVAO es adecuado para 6 aplicacións: Automotive Body Control Module (BCM), LIN Network Sensor Nodes, Automotive LED Lighting Modules, HVAC Blower and Stepper Control, Industrial Sensor Interface Board, Battery-Powered IoT Edge Node.
Automotive Body Control Module (BCM)
The PIC18F25K42T-E/SSVAO's AEC-Q100 qualification and -40 C to +125 C operating range make it well-suited for body control module auxiliary functions such as mirror control, seat adjustment, and wiper control. Its 64 MHz CPU and 32 KB Flash run small LIN stacks and CIP-driven state machines for contact-bounce filtering and timing without CPU overhead. The 12-bit ADC2 with Computation handles position-sensor reads while DMA offloads PWM updates, freeing the CPU for communication tasks.
Recomendado
LIN Network Sensor Nodes
As a LIN slave in automotive distributed sensor networks, the PIC18F25K42T-E/SSVAO offers 32 KB Flash for LIN stacks plus application code, hardware UART with auto-baud, and PPS for routing the LIN line to any GPIO. The XLP nanoWatt sleep current (typ. < 1 uA in retention) and DMA allow the node to wake only on LIN activity or sensor interrupt, preserving battery life in always-on architectures. AEC-Q100 qualification and -40 C to +125 C range meet underhood and cabin deployment.
Recomendado
Automotive LED Lighting Modules
The PIC18F25K42T-E/SSVAO drives tail-light, indicator, and interior LED modules through its 16-bit PWM, Complementary Waveform Generator (CWG), and Hardware Limit Timer (HLT) for fault handling. CIPs let the MCU dim and detect open/short faults without CPU wakeups, meeting ISO 7637 and AEC-Q100 reliability expectations. The 5.5 V VDD rail accepts pre-regulated 5 V from the BCM and the small 28-SSOP footprint (5.30 mm width) fits tight lamp-head PCBAs.
Recomendado
HVAC Blower and Stepper Control
For HVAC blower speed and mode-door control, the PIC18F25K42T-E/SSVAO offers 16-bit PWM for blower drive plus CLC/CWG for stepper pulse sequencing without CPU load. The 12-bit ADC2 with Computation averages tach feedback and detects stall conditions, while CIPs debounce limit switches in hardware. AEC-Q100 and -40 C to +125 C guarantee operation behind the dashboard under thermal stress.
Recomendado
Industrial Sensor Interface Board
Industrial sensors and field instruments benefit from the PIC18F25K42T-E/SSVAO's 12-bit differential ADC2 with oversampling and CRC/Memory Scan for firmware integrity verification. With 2.3-5.5 V supply flexibility and 32 KB Flash, the same part runs 4-20 mA loop-side analog processing as well as HART or Modbus slave stacks. PPS simplifies PCB routing when assigning SPI, UART, or I2C to non-default pins on the 28-SSOP package.
Recomendado
Battery-Powered IoT Edge Node
For non-automotive IoT nodes, the PIC18F25K42T-E/SSVAO operates from a single 3 V coin cell at nanoWatt XLP sleep currents of < 100 nA (retention + RTC), waking only for scheduled sensor reads via RTCC and ADC2 with DMA. The 64 MHz CPU bursts through transmit/receive events and returns to sleep, while 32 KB Flash hosts an RTOS-free cooperative scheduler plus secure boot loader. CLC and CWG drive status LEDs and buzzers without waking the core.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC18F25K42T-E/SSVAO — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC18F25K42-E/SSVAO | PIC18F25K42T-E/SS | PIC18F25K42-I/SS | PIC18F25K40-E/SSVAO | PIC18F25K40T-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP (5.30 mm / 0.209") | 28-SSOP (5.30 mm) - same | 28-SSOP (5.30 mm) - same | 28-SSOP (5.30 mm) - same | 28-SSOP (5.30 mm) - same | 28-SSOP (5.30 mm) - same |
| Family | PIC18F25K42 (K42, AEC-Q100) | PIC18F25K42 (K42, AEC-Q100) | PIC18F25K42 (K42, industrial) | PIC18F25K42 (K42, industrial) | PIC18F25K40 (K40, AEC-Q100) | PIC18F25K40 (K40, industrial) |
| Program Flash | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB (per K40 datasheet) | 2 KB (per K40 datasheet) |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Operating Temperature | -40 C to +125 C (AEC-Q100) | -40 C to +125 C (AEC-Q100) | -40 C to +125 C (extended, industrial) | -40 C to +85 C (industrial) | -40 C to +125 C (AEC-Q100) | -40 C to +85 C (industrial) |
| Core Independent Peripherals | CLC, CWG, HLT, WWDT, CRC/Memory Scan, PPS, DMA, ADC2 | Same as this part | Same as this part | Same as this part | PPS, WWDT, CWG, CRC; no CLC/HLT/DMA/ADC2 | PPS, WWDT, CWG, CRC; no CLC/HLT/DMA/ADC2 |
| Packaging / Shipping | Tape & Reel ("T" trailer) | Tray / Tube (no "T") | Tape & Reel (no "VAO") | Tube (industrial, no trailer) | Tray / Tube (K40 die) | Tape & Reel (K40 die, industrial) |
Diferenciadores clave
- Newest K42 die with DMA and ADC2 Computation engine (frente a PIC18F25K40-E/SSVAO)
- AEC-Q100 automotive qualification built-in (frente a PIC18F25K42-I/SS)
- Configurable Logic Cells (CLC) for hardware glue logic (frente a PIC18F25K25 family)
- Tape-and-reel packaging for SMT lines ("T" trailer) (frente a PIC18F25K42-E/SSVAO)
Notas de diseño
Place a 100 nF ceramic decoupling capacitor within 3 mm of VDD (pin 19) and a bulk aluminum/poly cap on the same net at the PCB entrance. For noise-sensitive ADC applications, add a 100 nF + 10 uF decoupling pair on AVSS/AVDD if used, and a ferrite bead in series. The XLP sleep current of < 1 uA in retention mode (per Microchip datasheet DS40001869) assumes VBAT is connected only when needed; leaving VBAT floating saves ~50 nA.
Route the ICSP clock and data lines (RB6/ICSPCLK, RB7/ICSPDAT) directly to a 6-pin header with no series resistors unless your debugger requires them; series resistors degrade edge rates and can break ICD. Keep the trace to MCLR (pin 28) short (< 25 mm) and place the MCLR pull-up resistor (typ. 10 kOhm) within 5 mm of the pin to ensure robust reset behavior in noisy automotive environments.
Do not forget to lock the PPS peripheral (PPSLOCK bit) before entering long sleep periods; otherwise a brown-out or watchdog reset can remap peripherals mid-session and crash the firmware. Configure all unused pins as outputs driven low (not high-Z) to minimize SMD pin leakage on the 28-SSOP package. Avoid leaving the ADC inputs floating - tie unused analog pins to AVSS via a 10 kOhm resistor.
For SPI buses > 50 mm in length, place a 33 Ohm series resistor at the driver end to reduce ringing on SCK/MOSI. The 28-SSOP package's lead inductance (~7 nH per pin) can otherwise produce ~1 V overshoot on rising edges when driving a long trace into a capacitive load. Keep the SPI clock trace at least 2x trace-width away from analog traces (e.g., ADC inputs) to minimize digital crosstalk.
Información de cumplimiento
AEC-Q100 qualified per "VAO" suffix; RoHS/REACH compliant per Microchip product page; halogen-free status not stated in retrieved web data.
