PIC18F56K42T-I/PT Microchip Integrated Circuit (Quad Flat Packages) In Stock
PIC18F56K42T-I/PT is an 8-bit PIC18 microcontroller by Microchip with 64 kB Flash, 4 kB RAM, and a 64 MHz maximum clock in a 48-pin TQFP package. Key specs: 12-bit ADC with computation, UART/SPI/I2C peripherals, and 2.3 V to 5.5 V operating voltage. Available in tape-and-reel with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 48
- Lifecycle
- ACTIVE
- Datasheet
- PIC18F56K42T-I/PT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9703(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 64 kB self-write Flash and 4 kB RAM provide ample code and data space for mid-range 8-bit embedded applications
- 12-bit ADC with computation (ADCC) performs hardware averaging and threshold comparison without CPU intervention, freeing cycles for application logic
- Up to 64 MHz operation from a 5 V supply, scalable down to 16 MHz at 2.3 V for low-power sleep budgets
- Rich peripheral set including 4× UART, 2× SPI, 2× I2C, 4× CCP, and 10-bit PWM on 48 available I/O pins
- Peripheral Pin Select (PPS) routing lets designers remap digital peripherals to any I/O pin, simplifying PCB layout
Applications
PIC18F56K42T-I/PT targets embedded control applications such as home appliance controllers, HVAC units, and industrial sensor interfaces where an 8-bit core with rich analog and digital peripherals is sufficient. Its 12-bit ADCC and multiple UART/SPI/I2C ports suit metering, motor speed feedback, and multi-sensor data-acquisition boards. The 48-pin TQFP footprint and 2.3 V to 5.5 V supply range make it compatible with a broad range of power architectures and PCB form factors.
Specifications
| Manufacturer Package Code | TQFP-48 |
| Factory Lead Time | 6Weeks |
| Date Of Intro | 2017-06-16 |
| YTEOL | 7 |
| Has ADC | YES |
| Additional Feature | ALSO OPERATES WITH 2.5VMIN @32 MHZ AND 2.3VMIN @16MHZ |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC18 |
| Clock Frequency-Max | 64MHz |
| DAC Channels | YES |
| DMA Channels | YES |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-PQFP-G48 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of DMA Channels | 2 |
| Number of External Interrupts | 3 |
| Number of I/O Lines | 44 |
| Number of Timers | 7 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | QFP48,.28SQ,20 |
| Package Shape | SQUARE |
| Package Style | FLATPACK, LOW PROFILE, FINE PITCH |
| RAM (bytes) | 4096 |
| RAM (words) | 4096 |
| ROM (words) | 65536 |
| ROM Programmability | FLASH |
| Speed | 64MHz |
| Supply Current-Max | 350mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Philippines, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How much Flash and RAM does PIC18F56K42T-I/PT provide, and is that sufficient for a FreeRTOS kernel?
The device integrates 64 kB of self-write program Flash and 4 kB of data RAM. A minimal FreeRTOS port for PIC18 typically requires around 8 kB to 12 kB of Flash and 1 kB to 2 kB of RAM, so the 64 kB Flash and 4 kB RAM leave enough headroom for a small RTOS plus application tasks in most use cases.
What is the maximum ADC resolution on PIC18F56K42T-I/PT and what makes the ADCC module different from a standard SAR ADC?
The integrated ADCC module delivers 12-bit resolution and adds hardware-based computation features such as burst averaging over up to 64 samples, setpoint error calculation, and threshold interrupt generation. This means the CPU does not have to poll or average samples in software, reducing interrupt latency and allowing lower effective clock rates for the same measurement update rate.
What is the operating voltage range of PIC18F56K42T-I/PT and how does it affect the maximum clock frequency?
The device operates from 2.3 V to 5.5 V. At 5 V, full-speed 64 MHz operation is available. Dropping to 2.5 V limits the CPU to 32 MHz, and at the minimum 2.3 V the clock is restricted to 16 MHz to maintain reliable Flash read and write timing margins.
How many UART channels does PIC18F56K42T-I/PT include, and can they all run simultaneously in a multi-sensor node design?
PIC18F56K42T-I/PT includes 4 independent UART modules, each supporting standard asynchronous serial communication as well as LIN and DMX protocol modes. All 4 UARTs can operate simultaneously, enabling a single microcontroller to bridge multiple 115200 baud sensor streams to a host processor without an external UART expander.
For a compact IoT sensor board, how does the 48-pin TQFP package of PIC18F56K42T-I/PT compare to a larger 64-pin TQFP variant?
The 48-pin TQFP body measures 7 mm × 7 mm with a 0.5 mm pitch, providing 36 general-purpose I/O pins. Moving to a 64-pin TQFP increases the body to 10 mm × 10 mm, adding more I/O but consuming significantly more board area. For designs that fit within the 36-pin I/O budget, the 48-pin variant saves roughly 51 mm² of PCB real estate.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.1202 | $2.12 |
| 250+ | $1.0033 | $250.83 |
| 500+ | $0.9868 | $493.40 |
| 1000+ | $0.9703 | $970.30 |
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