PIC18LF8520-I/PT Microchip Integrated Circuit (Quad Flat Packages) In Stock
Microchip PIC18LF8520-I/PT is an 8-bit PIC18 low-voltage microcontroller with 32 kB Flash, 2 kB RAM, 16-channel 10-bit ADC, and 2 V minimum supply, housed in an 80-pin TQFP for high pin-count embedded control applications. Available worldwide with RoHS compliance.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 80
- Lifecycle
- ACTIVE
- Datasheet
- PIC18LF8520-I/PT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $9.0500(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
- 32 kB Flash program memory with self-write capability for in-field firmware updates without external programming hardware
- 16-channel 10-bit ADC enabling simultaneous monitoring of multiple analog sensor inputs in a single device
- Low-voltage operation down to 2 V minimum extends battery life in single-cell and two-cell applications
- 2 kB on-chip RAM with 20-bit address bus for complex data buffers and communication stacks
- 80-pin TQFP package providing ample GPIO for bus interfaces, peripheral control, and panel I/O
Applications
The PIC18LF8520-I/PT is suited for multi-channel data acquisition systems, industrial panel controllers, and portable measurement instruments that need a rich set of analog inputs alongside extensive digital I/O. Its 2 V minimum supply makes it suitable for battery-operated equipment running from two AA cells, while 32 kB of Flash accommodates complex communication stacks such as Modbus or CANopen alongside the application code. The 80-pin TQFP package provides sufficient GPIO for interfacing displays, keypads, sensor arrays, and communication peripherals simultaneously.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TQFP-80 |
| Factory Lead Time | 5Weeks |
| YTEOL | 8 |
| Has ADC | YES |
| Additional Feature | ALSO OPERATES AT 2V MINIMUM SUPPLY |
| Address Bus Width | 20 |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC18 |
| Clock Frequency-Max | 40MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| External Data Bus Width | 16 |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-PQFP-G80 |
| JESD-609 Code | e3 |
| Low Power Mode | NO |
| Number of External Interrupts | 4 |
| Number of I/O Lines | 68 |
| Number of Serial I/Os | 1 |
| Number of Timers | 5 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 16 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TQFP80,.55SQ |
| Package Shape | SQUARE |
| Package Style | FLATPACK, THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 2048 |
| ROM (words) | 16384 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 40MHz |
| Supply Current-Max | 5mA |
| 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 | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many ADC channels does PIC18LF8520-I/PT provide and what resolution do they offer for sensor measurement?
The PIC18LF8520-I/PT includes 16 analog input channels connected to a 10-bit ADC, resolving 1024 codes over the reference voltage range. For a 3.3 V reference this gives approximately 3.2 mV per LSB, adequate for temperature sensors, potentiometers, current shunts, and photodiodes. All 16 channels share a single successive-approximation converter, with channel selection via an internal multiplexer.
What is the minimum supply voltage for PIC18LF8520-I/PT and how does this benefit two-cell battery designs?
The PIC18LF8520-I/PT operates down to 2 V minimum supply. Two alkaline AA cells in series start at 3 V and discharge to approximately 1.8 V at end-of-life; the 2 V threshold allows the MCU to remain operational until cells are nearly fully discharged, maximizing usable energy. This eliminates the need for a boost converter in many portable field instruments and extends field service intervals.
How does the 32 kB Flash on PIC18LF8520-I/PT accommodate a Modbus RTU stack alongside application code?
A typical Modbus RTU software stack compiled for PIC18 architecture occupies 4 kB to 8 kB of Flash. With 32 kB total, the remaining 24 kB to 28 kB is available for application logic including ADC sampling, filtering algorithms, display drivers, and EEPROM management. This is sufficient for complete industrial sensor transmitter firmware without requiring external program memory expansion.
For a PCB redesign replacing a 64-pin MCU with PIC18LF8520-I/PT, what additional I/O does the 80-pin TQFP provide?
Upgrading from a 64-pin package to the 80-pin TQFP of PIC18LF8520-I/PT adds approximately 12 to 16 additional GPIO pins, depending on dedicated power and oscillator pin assignments. The 0.5 mm pin pitch TQFP-80 body is approximately 12 mm x 12 mm, which fits on a standard mid-size PCB. These extra pins allow adding a parallel LCD interface, a second SPI bus, or additional interrupt inputs without requiring an external I/O expander IC.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $10.6500 | $10.65 |
| 100+ | $9.9400 | $994.00 |
| 1000+ | $9.3700 | $9370.00 |
| 5000+ | $9.0500 | $45250.00 |
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