PIC12F519-I/MC - 8-Bit Flash MCU, 8MHz, 1.5KB | Microchip
MPN: PIC12F519-I/MC ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.32 | $1.32 |
| 10 | $1.18 | $11.80 |
| 100 | $1.02 | $102.00 |
| 500 | $0.89 | $445.00 |
| 1,000 | $0.76 | $760.00 |
| 3,000 | $0.68 | $2,040.00 |
PIC12F519-I/MC Overview
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path. Within the broader taxonomy it belongs to: microcontroller -> embedded microcontroller -> 8-bit microcontroller -> Flash-based MCU -> PIC12F family. Microcontrollers combine a CPU, non-volatile program memory, RAM, and peripherals on a single die, allowing them to replace discrete logic in cost-sensitive embedded applications. The PIC12F519 is optimized for pin- and code-efficient control tasks in consumer, industrial, and appliance products.
Key features include an internal 8 MHz oscillator with 4x PLL option, 41-byte data RAM, a 8-bit timer (TMR0) with 8-bit programmable prescaler, a watchdog timer with on-chip RC oscillator, an analog comparator, and a wide 2.0V to 5.5V operating supply range. The device also supports in-circuit serial programming (ICSP) via GP0 and GP1, allowing firmware updates after PCB assembly.
The PIC12F519 uses a Harvard-class RISC architecture with separate program and data buses, allowing instruction fetch and operand access in the same cycle. Its CMOS design with nanoWatt technology minimizes active and sleep-mode current, suiting battery-powered applications where quiescent draw is critical.
Typical applications include LED lighting controllers, battery chargers, remote-control transmitters, smart sensors, small appliance controls, and low-pin-count IoT edge nodes. The wide voltage range (2.0V to 5.5V) and integrated peripherals let designers build complete products with minimal external components.
When designing with this device, allocate at least two pins (GP0 and GP1) for ICSP if you plan in-field firmware updates. Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of the pin. For low-power applications, use the sleep mode and watchdog timer to achieve quiescent currents below 1 uA.
This page synthesizes distributor pricing, drop-in alternatives from the PIC12 family, application guidance, and design considerations not found in the manufacturer datasheet alone, helping engineers select the right 8-bit MCU for compact embedded designs.
Drop-in alternatives for PIC12F519-I/MC — 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 PIC12F519-I/MC (same form factor and footprint) — differing in Package, Internal Oscillator, Timers, Watchdog Timer, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC12F510-I/MC
✅ Drop-In✓ In Stock
$0.78 / Unit
View Datasheet →PIC12F509-I/MC
✅ Drop-In✓ In Stock
$0.55 / Unit
View Datasheet →PIC12F508-I/MC
✅ Drop-In✓ In Stock
$0.47 / Unit
View Datasheet →PIC12F519-E/MC
✅ Drop-In✓ In Stock
$0.64 / Unit
View Datasheet →PIC12F519T-I/MC
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC12F519-I/MC Maximum Ratings & Electrical Characteristics
| Core Processor | PIC |
| Core Size | 8-Bit |
| Program Memory Type | Flash |
| Program Memory Size | 1.5 KB (1K x 12) |
| EEPROM Size | 64 x 8 (64 bytes) |
| Data RAM Size | 41 bytes |
| Maximum Clock Speed | 8 MHz |
| Supply Voltage Range | 2.0 V to 5.5 V |
| Number of I/O Pins | 6 |
| Number of Timers | 1 (8-bit TMR0 with prescaler) |
| Watchdog Timer | Yes (on-chip RC oscillator) |
| Analog Comparator | Yes (1x) |
| Internal Oscillator | Yes (4 MHz / 8 MHz with 4x PLL option) |
| ICSP (In-Circuit Serial Programming) | Yes (via GP0/GP1) |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 8-pin DFN (2x3 mm) with exposed pad |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC12F519-I/MC Pin Configuration
| Pin 1 | GP5/OSC1/CLKIN — General-purpose I/O / oscillator input / external clock input |
| Pin 2 | GP4/OSC2/CLKOUT — General-purpose I/O / oscillator output / clock output |
| Pin 3 | GP3/MCLR/VPP — General-purpose I/O (input only) / master clear reset / programming voltage |
| Pin 4 | GP2/AN2/T0CKI/INT/COUT — General-purpose I/O / analog input / TMR0 clock input / external interrupt / comparator output |
| Pin 5 | GP1/CIN-/ICSPCLK — General-purpose I/O / comparator inverting input / ICSP clock |
| Pin 6 | GP0/CIN+/ICSPDAT — General-purpose I/O / comparator non-inverting input / ICSP data |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — Positive supply voltage (2.0V to 5.5V) |
Typical Applications
PIC12F519-I/MC is suitable for 7 applications: LED Lighting Controller, Battery Charger Controller, Remote Control Transmitter, Small Appliance Control, Smart Sensor Node, Hobbyist and Educational Projects, Automotive Interior Accessories.
LED Lighting Controller
The PIC12F519-I/MC fits LED lighting controllers by providing 6 general-purpose I/O pins, an 8 MHz internal oscillator, and a PWM-capable timer in a 2x3 mm DFN package. Its 1.5 KB Flash holds typical dimming profiles and color-mixing algorithms; the 2.0V-5.5V supply range lets it run directly from a 3.3V or 5V LED driver rail. The analog comparator enables current-sense feedback without an external op-amp, reducing BOM cost in compact MR16, candle, and strip-light designs.
Recommended
Battery Charger Controller
The PIC12F519-I/MC is well suited as a battery charger state-machine controller. Its 1.5 KB Flash stores NiMH, Li-ion, or lead-acid charge profiles; the analog comparator monitors battery voltage via a resistor divider without an external ADC. The 2.0V minimum supply lets it run from a single Li-ion cell, and the nanoWatt sleep mode reduces quiescent draw below 1 uA when the charger is idle. The DFN-8 footprint enables integration into USB-style charger cubes and power banks.
Recommended
Remote Control Transmitter
The PIC12F519-I/MC excels in IR/RF remote-control transmitters that demand low cost and tiny footprints. Six I/O pins drive 4-6 keypad buttons directly without a matrix, and the internal oscillator eliminates the external resonator, fitting a 2x3 mm DFN package. The 8 MIPS execution rate encodes standard RC5/RC6 or proprietary protocols in real time, and the 2.0V-5.5V supply lets the MCU run from a single CR2032 coin cell with sleep currents under 1 uA, extending battery life to multiple years.
Recommended
Small Appliance Control
The PIC12F519-I/MC is widely deployed in small appliance controllers such as coffee makers, blenders, fans, and toasters. Its 1.5 KB Flash stores UI state machines and timing profiles; the TMR0 with prescaler generates accurate delays for heating-element control; and the watchdog timer recovers from ESD or brown-out events. The industrial -40C to +85C temperature rating meets kitchen and laundry environment demands, while the 2.0V-5.5V range supports both rectified mains-derived and battery backup supplies.
Recommended
Smart Sensor Node
The PIC12F519-I/MC supports low-pin-count IoT sensor nodes by combining 6 I/O, an analog comparator for threshold detection, and ICSP for in-field firmware updates via the GP0/GP1 pins. The 1.5 KB Flash holds sensor linearization tables and threshold logic; the nanoWatt sleep mode and 1 uA typical quiescent current extend battery life in coin-cell-powered temperature, water-leak, or occupancy sensors. The 2x3 mm DFN package fits inside the sensor housing, eliminating the need for a separate MCU board.
Recommended
Hobbyist and Educational Projects
The PIC12F519-I/MC is a popular choice for hobbyists and STEM education because of its low cost, breadboard-friendly DFN-8 breakout boards, and free MPLAB X IDE toolchain. The 1.5 KB Flash accommodates beginner projects such as blinking LEDs, PWM motor speed control, simple games, and sensor readers. The ICSP interface works with $30 PICkit 4 programmers, and the extensive Microchip application-note library provides ready-to-compile code examples for common tasks like servo control and analog sensing.
Recommended
Automotive Interior Accessories
The PIC12F519-I/MC (Industrial grade) targets automotive interior accessories such as ambient lighting modules, seat-occupancy indicators, and trim illumination controllers. The 8 MHz internal oscillator, 6 GPIO, and 2.0V-5.5V supply tolerate 12V battery transients when paired with a TVS diode and LDO. For under-hood or AEC-Q100 environments, the PIC12F519-E/MC extended-temperature variant rated -40C to +125C is recommended. The 1.5 KB Flash holds CAN/LIN byte sequences or simple LIN slave protocols.
Recommended
Recommended Products Summary
Engineering reference data for PIC12F519-I/MC — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC12F510-I/MC | PIC12F509-I/MC | PIC12F508-I/MC | PIC12F519-E/MC |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | DFN-8 (2x3 mm) | DFN-8 (2x3 mm) - same | DFN-8 (2x3 mm) - same | DFN-8 (2x3 mm) - same | DFN-8 (2x3 mm) - same |
| Program Memory (Flash) | 1.5 KB (1K x 12) | 0.75 KB | 1.0 KB | 0.75 KB | 1.5 KB |
| EEPROM | 64 bytes | None | None | None | 64 bytes |
| Maximum Clock Speed | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| Operating Voltage | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (Extended) |
| Number of I/O Pins | 6 | 6 | 6 | 6 | 6 |
| AEC-Q100 Qualified | No (Industrial grade only) | No | No | No | No |
Key Differentiators
- Highest program memory in the PIC12F5xx baseline family (vs PIC12F510-I/MC)
- Integrated 64-byte EEPROM for non-volatile data storage (vs PIC12F509-I/MC)
- Compact 2x3 mm DFN package maximizes PCB density (vs PIC12F519-I/MS (MSOP-8))
- Industrial temperature range for harsh environments (vs PIC12F519-E/MC (Extended temp))
Design Notes
Estimated: The PIC12F519-I/MC DFN-8 package has an exposed thermal pad that MUST be soldered to the PCB for mechanical reliability and thermal performance. Per Microchip DFN soldering guidelines, the pad should connect to a copper pour of at least 10 mm^2 on the top or bottom layer, with multiple thermal vias to the opposite plane. Insufficient thermal pad soldering is the #1 cause of field failures in DFN-packaged MCUs.
Place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 8) on every PIC12F519-I/MC board. For designs with sleep-mode operation, add a 10 uF bulk capacitor near the supply pin to handle wake-up transients. Per the Microchip datasheet, VDD rise time must be monotonic and faster than 300 ms to ensure proper Power-on Reset; add an external RC delay (10 kohm + 1 uF) on MCLR if the supply rise is slow.
GP3 is input-only on the PIC12F519-I/MC - it cannot be used as a digital output. Designers migrating from larger PICs often overlook this constraint. If you need 6 outputs (rather than 5 outputs + 1 input), choose the PIC12F510-I/MC or PIC12F509-I/MC, which share the same DFN-8 pinout but may offer different I/O capability. Also note that MCLR is enabled by default - disable it via the CONFIG register if not needed to free GP3 for digital input use.
The PIC12F519-I/MC ICSP interface uses GP0 (ICSPDAT) and GP1 (ICSPCLK) shared with general-purpose I/O. Per Microchip ICSP specification, isolate these pins from high-current or high-speed signals during programming by adding 100 ohm series resistors and ensuring no low-impedance load is connected. Adding a 2-pin ICSP header (or at least test pads) on the PCB enables in-field firmware updates without removing the MCU.
Compliance Information
RoHS compliant and lead-free per Microchip product page. Not AEC-Q100 qualified - the PIC12F519-I/MC is industrial grade (-40C to +85C); for AEC-Q100 qualified variants contact Microchip. Halogen-free status not explicitly stated in distributor listings.
