PIC18C442-I/L Microchip Integrated Circuit (Plastic Leaded Chip Carrier) In Stock
Microchip PIC18C442-I/L is an 8-bit CMOS microcontroller with 40 MHz clock, on-chip ADC, and 44-pin PLCC package. Features CAN module support, USART, SPI, and I2C interfaces for embedded control. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Plastic Leaded Chip Carrier
- Pin Count
- 44
- Lifecycle
- OBSOLETE
- Datasheet
- PIC18C442-I/L Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PIC18C442-I/L?
- 8-bit PIC18 CPU core running up to 40 MHz with Harvard architecture for high-throughput control loops
- Integrated 10-bit ADC with multiple input channels for direct sensor acquisition without external components
- 44-pin PLCC package with CAN, USART, SPI, and I2C peripherals enabling multi-protocol industrial communication
What is PIC18C442-I/L used for?
The PIC18C442-I/L suits embedded control applications requiring reliable serial communication and analog input, such as industrial motor controllers, automotive body control modules, and smart sensor nodes. Its CAN interface makes it ideal for multi-node networked systems operating in noisy environments. Designers use this MCU in HVAC controllers, building automation gateways, and data-logging instruments where compact 44-pin PLCC footprint conserves board space.
What are the specifications of PIC18C442-I/L?
| Pbfree Code | Yes |
| Date Of Intro | 1999-06-17 |
| YTEOL | 0 |
| Has ADC | YES |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC18 |
| Clock Frequency-Max | 40MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-PQCC-J44 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 3 |
| Number of I/O Lines | 34 |
| Number of Serial I/Os | 1 |
| Number of Timers | 6 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 16 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LDCC44,.7SQ |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER |
| Qualification Status | Not Qualified |
| RAM (bytes) | 512 |
| ROM (words) | 8192 |
| ROM Programmability | OTPROM |
| Screening Level | TS 16949 |
| Speed | 40MHz |
| Supply Current-Max | 38mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.2V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | J BEND |
| Terminal Pitch | 1.27mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Plastic Leaded Chip Carrier |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Philippines |
Where can I find the PIC18C442-I/L datasheet?
PIC18C442-I/L Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC18C442-I/L?
Compatible alternatives and drop-in replacements for PIC18C442-I/L:
RISC Microcontroller, 8-Bit, OTPROM, PIC18 CPU, 40MHz, CMOS, PQCC44
RISC Microcontroller, 8-Bit, OTPROM, PIC18 CPU, 40MHz, CMOS, PDIP40
RISC Microcontroller, 8-Bit, OTPROM, PIC18 CPU, 40MHz, CMOS, PQFP44
Frequently Asked Questions
What is the maximum clock frequency supported by the PIC18C442-I/L and how does it affect instruction throughput?
The PIC18C442-I/L supports a maximum clock frequency of 40 MHz, delivering up to 10 MIPS throughput due to its 4-clock-per-instruction Harvard pipeline. This makes it suitable for real-time control tasks requiring fast loop execution within tight 100 µs timing budgets.
Which analog measurement scenarios benefit from the built-in ADC on the PIC18C442-I/L?
The integrated 10-bit ADC with 8 input channels allows direct connection of resistive sensors, thermistors, and 0–5 V transducer outputs without an external converter. Acquisition time is configurable down to 2 µs, supporting multi-channel scanning in temperature monitoring, pressure sensing, and battery management systems.
When is PIC18C442-I/L a practical choice over a smaller 28-pin PIC18 variant for CAN-based designs?
The 44-pin PLCC package provides 33 I/O pins versus 25 on a 28-pin DIP, giving enough GPIO to run a CAN node at 1 Mbps alongside USART, SPI peripherals, and 8 ADC channels simultaneously. This eliminates the need for an I/O expander in applications like automotive body-control modules or industrial fieldbus gateways.
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