PIC18F24K42T-E/SSVAO - 16KB Flash 8-bit MCU, SSOP-28 | Microchip
MPN: PIC18F24K42T-E/SSVAO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.55 | $25.50 |
| 100 | $2.18 | $218.00 |
| 500 | $1.92 | $960.00 |
| 1,000 | $1.68 | $1,680.00 |
PIC18F24K42T-E/SSVAO Overview
An 8-bit microcontroller (MCU) is a single-chip computer that combines a CPU, non-volatile program memory, working RAM, and configurable I/O peripherals on one die. PIC18F devices use an enhanced Harvard RISC architecture with 16-bit instructions executed from Flash, and they sit within the broader hierarchy of microcontroller -> embedded controller -> semiconductor IC. The 'F' denotes Flash program memory and the 'K42' family suffix identifies the third-generation low-power core with on-chip 1.8-5.5V operation, intelligent analog, and configurable logic cells (CLC).
Key features include a 12-bit ADC with Computation (ADC2), a 5-bit DAC, DMA controller, high-speed comparators, configurable logic cells (CLC), complementary waveform generator (CWG), PWM/CCP, and Hardware Limit Timer (HLT). The 28-pin SSOP package offers the smallest SSOP footprint in the family while retaining 25 usable I/O, multiple UART/SPI/I2C, and a 32 kHz low-power oscillator for RTC-style duty-cycled operation.
The architecture uses a 16-bit instruction word on an 8-bit data path with hardware Multiply and a 31-level stack, supporting C-compiled firmware. The 12-bit ADC2 block automates averaging, threshold comparison, and burst-mode sampling, offloading CPU time and enabling low-power sensor acquisition. Vectored interrupts, peripheral pin select (PPS), and nanoWatt XLP power management make the part flexible across motor, lighting, and IoT edge-node designs.
Typical applications include automotive body and sensor modules, industrial control, IoT edge nodes, LED lighting drivers, motor control with CWG/PWM, and battery-powered sensor hubs. The combination of on-chip DMA, ADC2 with computation, and CLC allows software-free signal chains in many cases.
When designing, confirm the VAO suffix indicates the automotive/extended-grade screening flow rather than a standard catalog part; pull-ups on I2C, decoupling per VDD/AVDD pair, and unused-pin configuration to outputs-low are recommended. The 'T' suffix denotes tape-and-reel packaging, suitable for high-volume SMT assembly.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes derived from the Microchip datasheet, datasheet typical-application circuits, and Microchip cross-reference guidance not consolidated in a single manufacturer view.
Drop-in alternatives for PIC18F24K42T-E/SSVAO — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC18F24K42T-E/SSVAO (same form factor and footprint) — differing in Operating Temperature, Package, Program Memory (Flash), ADC, Data SRAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F24K42-I/SS
✅ Drop-In✓ In Stock
$1.53 / Unit
View Datasheet →PIC18F24K42-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F24K42T-E/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC18F25K42-I/SS
✅ Drop-In✓ In Stock
$1.78 / Unit
View Datasheet →PIC18F26K42-I/SS
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC18F24K40-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC18F24K42T-E/SSVAO Maximum Ratings & Electrical Characteristics
| Architecture | PIC18 8-bit Harvard RISC |
| Family | PIC18FxxK42 |
| Program Memory (Flash) | 16 KB |
| Data RAM | 1 KB |
| EEPROM | 256 bytes |
| Package | SSOP-28 (5.30 mm body) |
| Pin Count | 28 |
| Operating Voltage | 1.8 V to 5.5 V |
| Max CPU Speed | 64 MHz (16 MIPS) |
| ADC | 12-bit ADC2 with Computation |
| DAC | 5-bit DAC |
| Comparators | High-speed comparators |
| Configurable Logic Cells (CLC) | Yes |
| Complementary Waveform Generator (CWG) | Yes |
| DMA Controller | Yes |
| PWM / CCP | Yes |
| Hardware Limit Timer (HLT) | Yes |
| Communication | UART, SPI, I2C (with PPS) |
| Operating Temperature | Extended grade (E suffix) |
| Packaging | Tape & Reel (T suffix) |
| RoHS Status | Compliant |
PIC18F24K42T-E/SSVAO ssop-28 (5.30 mm body) Pin Configuration Guide
Pin configuration for PIC18F24K42T-E/SSVAO (ssop-28 (5.30 mm body) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC18F24K42T-E/SSVAO.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC18F24K42T-E/SSVAO is suitable for 7 applications: Automotive Body Control Module, IoT Edge Sensor Node, LED Lighting Driver, Industrial Motor Control, Battery Charging and Power Management, Consumer Appliance Control, Medical Sensor Hub.
Automotive Body Control Module
The PIC18F24K42T-E/SSVAO's VAO screening flow and extended-temperature operation fit automotive body-control applications such as interior lighting, mirror control, and HVAC auxiliaries. Its 12-bit ADC2 with computation enables accurate battery-voltage and ambient-temperature monitoring across -40C to +125C. The on-chip DMA offloads data movement from the CPU, allowing deterministic response time on CAN-LIN gateway tasks.
Recommended
IoT Edge Sensor Node
For battery-powered IoT sensor nodes, the PIC18F24K42T-E/SSVAO delivers nanoWatt XLP deep sleep current under typical conditions and a 1.8 V minimum supply for direct coin-cell operation. Its 12-bit ADC2 with oversampling and Hardware Limit Timer (HLT) automate threshold detection without waking the CPU, which is critical for years-of-life sensor deployments. UART/SPI/I2C with PPS support multiple radios and sensors on the same SSOP-28 footprint.
Recommended
LED Lighting Driver
The PIC18F24K42T-E/SSVAO integrates a Complementary Waveform Generator (CWG), PWM, and high-speed comparators ideal for digital LED drivers and dimmable lighting. CWG produces complementary MOSFET drive signals with programmable dead-band, eliminating external logic. ADC2 monitors LED current and temperature, while CLC implements hardware fault protection independent of firmware execution.
Recommended
Industrial Motor Control
For small BLDC or stepper control, the PIC18F24K42T-E/SSVAO combines CWG for 3-phase complementary drive, PWM for variable duty, and 12-bit ADC2 for back-EMF sensing in a SSOP-28 outline. The on-chip DMA streams ADC samples without CPU overhead, freeing MIPS for the commutation algorithm. Extended temperature screening supports factory-floor installations near motor windings.
Recommended
Battery Charging and Power Management
The PIC18F24K42T-E/SSVAO's 1.8-5.5V operating range, 12-bit ADC2 for current and voltage sensing, and 5-bit DAC for reference setting enable a single-chip Li-ion or lead-acid charge controller. CLC modules implement constant-current/constant-voltage control loops in hardware, reducing firmware complexity. DMA maintains accurate coulomb counting while the CPU sleeps.
Recommended
Consumer Appliance Control
In appliances such as coffee makers, washing machines, or smart thermostats, the PIC18F24K42T-E/SSVAO provides capacitive-touch sensing via CLC and ADC2, PWM for motor or heater control, and UART for HMI display interfacing. The SSOP-28 package supports compact board layouts typical of consumer appliances. Self-programmable Flash enables OTA-style field updates.
Recommended
Medical Sensor Hub
The PIC18F24K42T-E/SSVAO suits low-risk medical accessories such as personal health monitors or rehabilitation sensors where extended temperature and stable ADC performance are required. ADC2 oversampling supports accurate heart-rate or SpO2 front-end measurements, while DMA streams data to a host MCU. Note: this part is not FDA-cleared for life-support devices; review IEC 60730 for safety-critical functions.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F24K42T-E/SSVAO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F24K42-I/SS | PIC18F24K42-E/SS | PIC18F25K42-I/SS | PIC18F26K42-I/SS | PIC18F24K40-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-28 | SSOP-28 - same | SSOP-28 - same | SSOP-28 - same | SSOP-28 - same | SSOP-28 - same |
| Program Flash | 16 KB | 16 KB | 16 KB | 32 KB | 64 KB | 16 KB |
| RAM | 1 KB | 1 KB | 1 KB | 2 KB | 4 KB | 1 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| ADC | 12-bit ADC2 with Computation | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 | 10-bit ADC (no ADC2) |
| Core Generation | K42 with DMA, CLC, CWG | K42 - same | K42 - same | K42 - same | K42 - same | K40 - older generation, no CLC/DMA |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
Key Differentiators
- VAO extended-grade screening with same SSOP-28 footprint as industrial siblings (vs PIC18F24K42-I/SS)
- On-chip DMA, CLC, and CWG vs older K40 core (vs PIC18F24K40-I/SS)
- 16 KB Flash in same footprint as 32/64 KB siblings (vs PIC18F25K42-I/SS)
Design Notes
Decouple every VDD/AVDD pair with a 100 nF ceramic capacitor placed within 3 mm of the package pin; add a bulk 1-10 uF tantalum or ceramic near the IC. The PIC18F24K42T-E/SSVAO allows independent AVDD/VDD rails, and sharing them via ferrite beads reduces ADC noise coupling. In deep sleep, the nanoWatt XLP mode typically draws microampere-level current, so size the bulk capacitor to hold the rail during wake events.
The SSOP-28 package has a junction-to-ambient thermal resistance of approximately 100 C/W on a 2-layer 1 oz board, per typical Microchip datasheet family guidance. At 64 MHz with peripherals active, power dissipation stays under 50 mW, so no heatsink is required. For sealed enclosures with limited convection, estimate the junction rise as: T_j = T_a + (P_d * theta_JA). Always derate 20% for production tolerances.
Route the ICSP/PGD-PGC programming signals with short traces and avoid crossing high-current switching nets; Microchip ICD programming is robust but sensitive to capacitance >30 pF on PGC/PGD. Place the external 32.768 kHz crystal within 5 mm of SOSC0/SOSC1 if used for RTC. Use ground pour on top and bottom layers stitched with 4-8 vias near VSS pins for low-impedance return paths.
Configure all unused I/O pins as digital outputs low to minimize current leakage in nanoWatt XLP modes - floating inputs can leak nanoamps and defeat the low-power claim. Disable unused peripherals via PMDx registers before sleep; peripherals left clocked draw current even when idle. Ensure PPS assignments for the I2C/SPI/UART peripherals do not conflict with the ICSP programming pins or you will lose in-circuit debug.
Compliance Information
VAO suffix indicates Microchip automotive-grade screening; AEC-Q100 status confirmed via Microchip ordering code breakdown. Halogen-free status not explicitly stated in the provided distributor data.
