PIC12F519-E/P - 8-bit 8MHz Flash MCU 1.5KB | Microchip
MPN: PIC12F519-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.18 | $1.18 |
| 10 | $1.06 | $10.60 |
| 100 | $0.92 | $92.00 |
| 500 | $0.82 | $410.00 |
| 1,000 | $0.73 | $730.00 |
PIC12F519-E/P Overview
An 8-bit microcontroller (MCU) is a small computer-on-a-chip built around a CPU with an 8-bit data bus, embedded Flash/ROM for program storage, RAM for data, and integrated peripherals such as timers, ADCs, and communication ports. MCUs sit hierarchically inside microcontrollers -> embedded processors -> semiconductor ICs, and they form the lowest tier of programmable computing hardware used in mass-market embedded systems.
Key features of the PIC12F519 include a precision internal 8 MHz oscillator with software-selectable calibration, six general-purpose I/O pins, one 8-bit and one 16-bit timer, a watchdog timer with its own on-chip RC oscillator, and Microchip's nanoWatt technology for ultra-low power consumption. The device supports in-circuit serial programming (ICSP) via two pins, enabling firmware updates after PCB assembly.
Architecturally, the PIC12F519 uses a Harvard RISC core with separate program and data buses, allowing instruction fetch and operand access to occur simultaneously. This single-cycle execution model, combined with deterministic timing, makes it well suited to real-time control loops and interrupt-driven firmware architectures commonly required in cost-sensitive industrial and consumer products.
Typical applications include LED drivers and lighting control, battery chargers, low-end motor control, remote controls, sensor signal conditioning, and small appliance controls. The wide 2.0V-5.5V supply range and nanoWatt sleep modes make it a strong fit for battery-powered and energy-harvesting designs where quiescent current directly determines operating life.
When designing with the PIC12F519, engineers should note that the internal oscillator is factory calibrated but offers ±1% (typical) accuracy; designs requiring tight UART baud-rate tolerance may need an external crystal. The ICSP pins (GP0/GP1) double as general I/O and must be considered when allocating pin functions.
This page synthesizes current distributor pricing, drop-in same-family alternatives, and practical design notes that go beyond what is printed in the manufacturer datasheet, giving procurement and engineering teams a single decision-ready reference.
Drop-in alternatives for PIC12F519-E/P — 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/P (same form factor and footprint) — differing in Timers, Package, ADC, Internal Oscillator, Instruction Set.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC12F519-E/MS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.63 / Unit
View Datasheet →PIC12F519-E/MC
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.64 / Unit
View Datasheet →PIC12F510-I/P
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.63 / Unit
View Datasheet →PIC12F509-E/P
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC12F508-E/P
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC12CE519-04E/P
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.02 / Unit
View Datasheet →PIC12F519-E/P Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit RISC Harvard (PIC) |
| Program Memory Type | Flash |
| Program Memory Size | 1.5 KB (1K x 12) |
| Data RAM | 64 bytes (41 x 8) |
| Data EEPROM | 64 bytes |
| Maximum CPU Speed | 8 MHz |
| Instruction Set | 33 single-word/single-cycle instructions |
| Supply Voltage Range | 2.0 V to 5.5 V |
| I/O Pins | 6 (GPIO GP0-GP5) |
| Timers | 1 x 8-bit, 1 x 16-bit (TMR0/TMR1) |
| Watchdog Timer | Yes, with dedicated on-chip RC oscillator |
| Internal Oscillator | 8 MHz factory calibrated |
| Operating Temperature Range | -40 C to +125 C (Industrial, "E") |
| Package | 8-pin PDIP (P) |
| Mounting Type | Through-hole (DIP) |
| ICSP | Yes (in-circuit serial programming on GP0/GP1) |
| Low-Power Technology | nanoWatt (deep sleep modes) |
| RoHS Status | Compliant (lead-free) |
PIC12F519-E/P Pin Configuration
| Pin 1 | VDD — Positive supply voltage (2.0V to 5.5V) |
| Pin 2 | GP5/T1CKI/OSC1/CLKIN — GPIO GP5 / Timer1 clock input / external clock input |
| Pin 3 | GP4/AN3/T1G/OSC2/CLKOUT — GPIO GP4 / Timer1 gate / oscillator output |
| Pin 4 | GP3/MCLR/VPP — GPIO GP3 / Master Clear (reset, active low) / programming voltage |
| Pin 5 | GP2/INT/COUT/CCP1 — GPIO GP2 / external interrupt / comparator output / CCP1 |
| Pin 6 | GP1/CIN-/ICSPCLK — GPIO GP1 / comparator inverting input / ICSP clock |
| Pin 7 | GP0/CIN+/ICSPDAT — GPIO GP0 / comparator non-inverting input / ICSP data |
| Pin 8 | VSS — Ground reference |
Typical Applications
PIC12F519-E/P is suitable for 7 applications: LED Lighting Drivers, Remote Control Transmitters, Battery Chargers and Monitors, Small Appliance Controls, Sensor Signal Conditioning, Automotive Body Electronics (Non-Safety), Industrial Control Logic Replacement.
LED Lighting Drivers
The PIC12F519-E/P fits low-cost LED driver designs where its 8 MHz core, six GPIO pins, and 2.0-5.5V supply range directly accept single-cell Li-ion or 5V USB power. PWM control of LED brightness is straightforward using the 8-bit or 16-bit timer, while the nanoWatt sleep modes drop quiescent current into the microamp range for battery-powered fixtures. EEPROM stores trim values for LED bin compensation, and the calibrated internal oscillator removes the need for an external crystal, shrinking BOM cost.
Recommended
Remote Control Transmitters
Handheld IR/RF remote controls benefit from the PIC12F519-E/P's small footprint, 8-pin PDIP, and ultra-low sleep current. Six GPIO are sufficient for 4-6 button matrix scanning plus an IR LED drive line, and the 1.5 KB Flash holds button debounce, repeat codes, and IR protocol state machines. The internal 8 MHz oscillator provides the timing precision needed for 38 kHz carrier generation, while EEPROM retains pairing data across battery swaps.
Recommended
Battery Chargers and Monitors
Single-cell Li-ion and NiMH charger designs use the PIC12F519-E/P as the supervisory controller, leveraging its 2.0V-5.5V input to monitor battery voltage directly. The 64-byte EEPROM logs charge-cycle counts, and the watchdog timer ensures recovery from fault states. The internal oscillator and nanoWatt sleep modes keep idle draw below 1 uA, extending standby life in always-connected products like wireless sensor nodes.
Recommended
Small Appliance Controls
Coffee makers, blenders, and other small appliances use the PIC12F519-E/P as the central timing and I/O controller. The 8-pin PDIP simplifies through-hole PCB assembly for cost-sensitive appliance lines, while the 33-instruction RISC core executes appliance-state machines deterministically. EEPROM retains user presets (brew strength, blend duration) across power cycles, and the wide temperature range supports kitchen-environment operation.
Recommended
Sensor Signal Conditioning
Simple sensor interface boards pair the PIC12F519-E/P with passive sensors such as thermistors, reed switches, or Hall-effect devices. Six GPIO accommodate multiple sensor inputs, while the calibrated internal oscillator drives precise timing intervals for polled or interrupt-driven sampling. The low sleep current is ideal for energy-harvesting wireless sensor nodes that spend most of their life in standby.
Recommended
Automotive Body Electronics (Non-Safety)
Interior automotive modules such as LED indicators, ambient lighting, and door-lock indicators deploy the PIC12F519-E/P because of its industrial temperature rating and stable internal oscillator. The 8-pin PDIP and modest GPIO count suit small actuator-driver PCBs. For AEC-Q100 qualified automotive designs, the PIC12F519T-I/MC (automotive grade) variant is preferred - share the same die in a DFN-8 package.
Recommended
Industrial Control Logic Replacement
Replacing discrete logic or 555-timer circuits with the PIC12F519-E/P reduces component count and enables firmware-driven behavior changes without board respins. Six GPIO handle multiple sensor inputs or relay drives, while the 1.5 KB Flash stores lookup tables or sequencing logic. The wide 2.0-5.5V supply tolerates 24V industrial rails after regulation, and the -40C to +125C temperature range covers factory-floor environments.
Recommended
Recommended Products Summary
Engineering reference data for PIC12F519-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC12F519-E/MS | PIC12F519-E/MC | PIC12F510-I/P | PIC12F509-E/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PDIP-8 | MSOP-8 (drop-in SMD) | DFN-8 (drop-in SMD) | PDIP-8 (same) | PDIP-8 (same) |
| Program Memory (Flash) | 1.5 KB (1K x 12) | 1.5 KB (same) | 1.5 KB (same) | 1.5 KB (same) | 1 KB (-33%) |
| Data RAM | 64 bytes | 64 bytes | 64 bytes | 64 bytes | 64 bytes |
| Data EEPROM | 64 bytes | 64 bytes | 64 bytes | 64 bytes | None (no EEPROM) |
| ADC | No | No | No | Yes (4-ch 8-bit) | No |
| Max CPU Speed | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| Supply 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 |
| Temperature Grade | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) |
Key Differentiators
- Includes on-chip EEPROM data memory (vs PIC12F509-E/P)
- Larger Flash than PIC12F508 (vs PIC12F508-E/P)
- Standard Flash, not OTP (vs PIC12CE519-04E/P)
- Wider temperature grade than I-suffix (vs PIC12F519-I/P)
Design Notes
The PIC12F519-E/P draws <1 uA in Sleep mode at 3V, but typical Run current at 8 MHz and 5V is around 1 mA plus I/O loading. For battery-powered designs, place the MCU in Sleep as soon as work is done and wake via WDT, INT, or pin-change interrupts. Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of pin 1; adding a 10 uF bulk cap improves behavior during load transients.
Keep the ICSP pins (GP0/GP1) accessible on the PCB or test points; production programming requires a 5-pin header (VDD, VSS, MCLR, ICSPCLK, ICSPDAT). If those pins must drive external circuitry, add 4.7 kohm series resistors to allow the programmer to override. Maintain a ground plane under the MCU to reduce EMI from switching I/O.
The MCLR pin (GP3) is shared with the reset function. If left unconnected, the device may intermittently reset or fail to start. Tie MCLR to VDD through a 10 kohm pull-up, optionally with a 100 nF cap for noise immunity. Also note that GP3 cannot be configured as a digital output - it is input-only on this part.
The internal 8 MHz oscillator is factory calibrated but drifts roughly 1-2% across voltage and temperature. For UART baud rates above 9600 baud, verify timing with the OSCTUNE register or switch to an external crystal. PWM frequency for LED dimming should be set above 100 Hz to avoid visible flicker, achievable with Timer2 prescaler settings.
At 8 MHz and 5V with all six GPIO sourcing 10 mA, total power dissipation is well under 100 mW, so no heatsink is needed. The PDIP-8 package theta_JA of ~84 C/W keeps junction rise below 10 C in still air, per Microchip package thermal data.
Compliance Information
RoHS-compliant lead-free PDIP packaging per Microchip product page. PIC12F519-E/P itself is not AEC-Q100 qualified; use PIC12F519T-I/MC or PIC12F519T-E/MC for automotive-grade applications.
