PIC12F519-E/MC - 8-Bit Flash MCU, 1.5KB, 4MHz, DFN-8 | Microchip
MPN: PIC12F519-E/MC ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.12 | $1.12 |
| 10 | $0.99 | $9.90 |
| 100 | $0.81 | $81.00 |
| 500 | $0.72 | $360.00 |
| 1,000 | $0.64 | $640.00 |
PIC12F519-E/MC Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM), and peripherals onto one die, typically targeted at cost-sensitive embedded control tasks. Within the product hierarchy, the PIC12F519 belongs to the PIC10/12 family of baseline and mid-range 8-bit microcontrollers -> microcontrollers -> embedded processors -> integrated circuits -> semiconductors. The '12-bit wide instruction set' is a Microchip hallmark offering 2:1 code density over 8-bit instruction MCUs from competitors, and the device also carries the legacy PIC12C5xx core, making it familiar to long-time PIC users.
Key features include an internal 4 MHz factory-calibrated oscillator with software-selectable LF (31 kHz) and HF (8 MHz) modes, an 8-bit real-time clock/counter (TMR0) with 8-bit prescaler, a Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation, and ultra-low-power nanoWatt technology with power-managed sleep and wake-up modes. Code protection, Power-on Reset (POR), and Brown-out Reset (BOR) are built in, and in-circuit serial programming (ICSP) is supported via two pins.
The PIC12F519 uses a Harvard RISC architecture with separate program and data buses, providing deterministic single-cycle instruction execution. Its peripheral set is intentionally minimal—PORTA with six GPIO pins, an 8-bit timer, and an analogue comparator selectable on GP0/GP1/GP2—optimised for compact glue-logic replacement and battery-powered applications rather than high-throughput DSP tasks.
Typical applications include battery chargers, smart sensors, appliance controls, LED drivers, low-end remote controls, and small motor controllers. The extended temperature range also supports industrial monitoring nodes and automotive body electronics (non-safety). It fits particularly well where PIC12C508/PIC12C509 firmware is already deployed and a Flash-based migration is desired.
When designing with this device, allocate I/O pins carefully because only 6 of the 8 package pins are usable as GPIO; the remaining 2 are VDD/VSS. Place a 0.1 uF decoupling capacitor as close to the VDD pin as the DFN-8 land pattern allows, and follow Microchip's recommended ICSP layout for in-circuit programming access.
This page consolidates manufacturer specification data, distributor pricing as of 2026-09-15, a side-by-side drop-in compatibility table against PIC12F510/PIC12F509/PIC12F1822 family parts, and practical design guidance not found in the standalone datasheet.
Drop-in alternatives for PIC12F519-E/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-E/MC (same form factor and footprint) — differing in Package, Internal Oscillator, Timers, I/O Pins, Watchdog Timer.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC12F519T-I/MC
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC12F519-I/MC
✅ Drop-In✓ In Stock
$0.68 / Unit
View Datasheet →PIC12F510-I/MC
✅ Drop-In✓ In Stock
$0.78 / Unit
View Datasheet →PIC12F510-E/MC
✅ Drop-In📋 Reference alternative (not in catalog)
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 Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC |
| Instruction Set Width | 12-bit |
| Number of Instructions | 33 single-word/single-cycle |
| Program Memory (Flash) | 1.5 KB |
| Data EEPROM (Flash) | 64 bytes |
| SRAM | 41 bytes |
| Maximum Clock Speed | 8 MHz (200 ns instruction cycle when configured) |
| Factory-Calibrated Internal Oscillator | 4 MHz |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| I/O Pins | 6 (PORTA) |
| Timers | 8-bit TMR0 with 8-bit prescaler + WDT |
| Peripherals | POR, BOR, WDT, analogue comparator on GP0/GP1/GP2 |
| Operating Temperature Range | -40C to +125C (industrial, 'E' suffix) |
| Package | DFN-8 (3 x 2 mm, 0.90 mm height), lead-free plastic |
| Programming Interface | ICSP (in-circuit serial programming) |
| Code Protection | Yes |
| RoHS Status | Compliant |
PIC12F519-E/MC Pin Configuration
| Pin 1 | VDD — Positive supply voltage (2.0V to 5.5V) |
| Pin 2 | GP5/T1CKI/OSC1/CLKIN — GPIO bit 5, Timer1 clock input, oscillator input or external clock input |
| Pin 3 | GP4/T1G/OSC2/CLKOUT — GPIO bit 4, Timer1 gate, oscillator output or clock output |
| Pin 4 | GP3/MCLR/VPP — GPIO bit 3, master clear reset (active low) or ICSP programming voltage |
| Pin 5 | GP2/COUT/INT/CCP1 — GPIO bit 2, comparator output, external interrupt, or CCP1 PWM output |
| Pin 6 | GP1/CIN-/ICSPCLK — GPIO bit 1, comparator negative input, ICSP clock |
| Pin 7 | GP0/CIN+/ICSPDAT — GPIO bit 0, comparator positive input, ICSP data |
| Pin 8 | VSS — Ground reference |
Typical Applications
PIC12F519-E/MC is suitable for 6 applications: Battery-Powered Sensor Node, Appliance Control Board, Automotive Body Electronics (Non-Safety), LED Driver / Lighting Controller, Industrial Monitoring Node, Remote Control / IR Transmitter.
Battery-Powered Sensor Node
The PIC12F519-E/MC fits battery-powered sensor nodes because its nanoWatt sleep current drops the device below 1 uA in standby, and the 4 MHz internal oscillator wakes the CPU within microseconds for periodic sampling. Its 2.0-5.5 V VDD range covers both 3 V coin-cell and 3.6 V LiSOCl2 chemistries without a boost converter, while 6 GPIO is enough for one I2C/SPI sensor plus an interrupt line. The 1.5 KB Flash accommodates small state machines, and the 64-byte EEPROM stores calibration constants that survive battery swaps. Engineers should keep the WDT enabled for sensor timeouts and use the 31 kHz LF oscillator for the deepest sleep modes to maximise battery life.
Recommended
Appliance Control Board
For white-goods and small-appliance control boards, the PIC12F519-E/MC provides deterministic single-cycle instruction execution that simplifies timing-critical tasks like triac firing, relay sequencing, and LED multiplexing. Its -40C to +125C industrial temperature grade tolerates the heat inside toaster ovens, coffee makers, and dishwasher control bays. The ICSP interface on GP0/GP1 allows production-line firmware updates without unmounting the chip, which is valuable for late-stage configuration or warranty repairs. Place a 0.1 uF decoupling capacitor close to VDD, and reserve GP3 as the MCLR/ICSP pin to avoid contention with output loads.
Recommended
Automotive Body Electronics (Non-Safety)
The PIC12F519-E/MC's -40C to +125C industrial temperature range is sufficient for non-safety automotive body applications such as ambient lighting controllers, window switch readers, and seat-position sensors. Its 5.5 V maximum VDD tolerates cranking transients on 12 V rails when paired with a TVS diode and bulk capacitor, although for AEC-Q100 qualified requirements designers should select a PIC16F or PIC18F Q1-grade part. The small DFN-8 (3x2 mm) footprint fits behind dashboard switch clusters where PCB area is constrained. Internal POR, BOR, and WDT cover automotive cold-start and brown-out scenarios without external reset ICs.
Recommended
LED Driver / Lighting Controller
For small LED drivers and decorative lighting strips, the PIC12F519-E/MC drives PWM-controlled MOSFETs or constant-current sinks using its 8-bit TMR0 with prescaler, achieving smooth dimming across a 1:256 duty cycle range. With only 6 GPIO it can handle RGB plus one status LED, or a single high-current white channel via a logic-level MOSFET. The internal 4 MHz oscillator provides enough PWM frequency to avoid visible flicker when prescaler is tuned to 1 kHz or higher. For battery-powered lanterns, the nanoWatt sleep plus WDT wakeup enables an off-state current of under 2 uA, preserving cell life for years.
Recommended
Industrial Monitoring Node
The PIC12F519-E/MC works as an inexpensive edge-of-network monitoring node in industrial environments, gathering digital sensor status (limit switches, flow meters, opto-isolated alarms) and reporting via UART bit-banged on two GPIO pins. Its extended -40C to +125C temperature range handles unheated enclosures, and 1.5 KB Flash fits Modbus-style slave firmware. The internal 4 MHz oscillator delivers deterministic instruction timing important for asynchronous serial framing at 9600 or 19200 baud. For EMI robustness, place the part away from switching power sections and route its VDD through a ferrite bead.
Recommended
Remote Control / IR Transmitter
The PIC12F519-E/MC is well suited to low-cost IR remote controls for TVs, fans, and consumer A/V gear. Its small 3x2 mm DFN-8 footprint fits inside slim handset enclosures, while the 4 MHz internal oscillator and TMR0 can be clocked to generate 38 kHz carrier PWM for IR LEDs without external crystals. Sleep current under 1 uA lets a coin cell last the typical shelf life of an unused remote. With 6 GPIO the device can scan a 3x3 keypad matrix plus drive the IR output, or interface a capacitive touch button via the analogue comparator on GP0/GP1/GP2.
Recommended
Recommended Products Summary
Engineering reference data for PIC12F519-E/MC — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC12F519T-I/MC | PIC12F519-I/MC | PIC12F510-I/MC | PIC12F510-E/MC | PIC12F509-I/MC | PIC12F508-I/MC |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | DFN-8 (3x2 mm) | DFN-8 (3x2 mm) - same | DFN-8 (3x2 mm) - same | DFN-8 (3x2 mm) - same | DFN-8 (3x2 mm) - same | DFN-8 (3x2 mm) - same | DFN-8 (3x2 mm) - same |
| Program Memory (Flash) | 1.5 KB | 1.5 KB | 1.5 KB | 1.5 KB (14-bit core) | 1.5 KB (14-bit core) | 1 KB (-33%) | 768 B (-50%) |
| Data EEPROM | 64 bytes | 64 bytes | 64 bytes | 64 bytes | 64 bytes | 64 bytes | 16 bytes (-75%) |
| SRAM | 41 bytes | 41 bytes | 41 bytes | 38 bytes | 38 bytes | 41 bytes | 16 bytes (-61%) |
| Maximum Clock Speed | 8 MHz (4 MHz internal) | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| Operating Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Operating Temperature | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
| GPIO Count | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| ADC | No (analogue comparator only) | No (comparator only) | No (comparator only) | Yes (10-bit, 4 ch) | Yes (10-bit, 4 ch) | No (comparator only) | No (comparator only) |
Key Differentiators
- 1.5 KB Flash and 64-byte EEPROM in 12-bit baseline core (vs PIC12F509-I/MC)
- Extended -40C to +125C operating range (vs PIC12F519-I/MC)
- No ADC keeps the die small and cheap (vs PIC12F510-I/MC)
Design Notes
The DFN-8 (3x2 mm) package has an exposed thermal pad that, while not electrically connected on PIC12F519 devices, must be soldered to a PCB land of at least 1 mm x 2 mm to meet the lead-free reflow profile (peak 260C per JEDEC J-STD-020). Place a 0.1 uF X7R 0402 or 0603 decoupling capacitor within 1 mm of the VDD pin and a second 10 uF bulk tantalum or ceramic on the same rail as close as the layout allows. Reserve GP3 as the MCLR/ICSP pin and avoid tying it to VDD directly so that in-circuit serial programming remains possible during production test and field firmware updates. Keep high-speed switching traces (PWM, relay coils) away from the VDD/VSS pair to prevent digital noise coupling into the analogue comparator reference on GP0/GP1/GP2.
Estimated: at VDD = 5.0 V, the PIC12F519-E/MC draws approximately 350 uA active current at 4 MHz internal oscillator and roughly 0.7 uA in sleep (per datasheet DS41319B section 18 Electrical Characteristics). For battery life calculations, factor in the duty cycle between active and sleep states; a 1% active duty cycle yields an average current near 4 uA from a 3 V CR2032 cell (220 mAh), translating to about 6 years of theoretical life. Enable the on-chip Brown-out Reset (BOR) to prevent code corruption during battery end-of-life dips, and configure the WDT as the wake-up source for periodic sensor sampling. Switching from the 4 MHz HF to the 31 kHz LF oscillator during sleep extends endurance further at the cost of slower wake processing.
Do not load GP3 with a low-impedance pull-up to VDD without isolating the MCLR circuit, because the internal weak pull-up is disabled when MCLR is enabled and external drive can prevent reset assertion. The ICSP clock (GP1/ICSPCLK) and data (GP0/ICSPDAT) lines must be accessible to the programming header; loading them with capacitive loads above 50 pF can cause programming failures. The 12-bit instruction set is NOT binary-compatible with 14-bit PIC cores like PIC12F510 - assembly source must be reassembled, and C code targeting the HI-TECH PICC baseline compiler must be rebuilt for the XC8 baseline toolchain. Finally, never exceed 5.5 V on any pin; the absolute maximum ratings in the datasheet list 7 V but sustained over-voltage destroys the I/O cells regardless of the ESD clamp response.
Compliance Information
RoHS and lead-free per Microchip product page ('MC' suffix denotes lead-free DFN-8 package). REACH and conflict-minerals statements available on Microchip supplier portal. Device is not AEC-Q100 qualified; for automotive safety applications choose PIC12F1822-E/MF or a Q1-graded PIC16/PIC18 part.
