PIC16LF1519-E/P - 28KB Flash 8-bit MCU, 40-PDIP | Microchip
MPN: PIC16LF1519-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.1 | $3.10 |
| 10 | $2.79 | $27.90 |
| 100 | $2.48 | $248.00 |
| 500 | $2.21 | $1,105.00 |
| 1,000 | $1.96 | $1,960.00 |
PIC16LF1519-E/P Overview
An 8-bit microcontroller is a single-chip computer built around a CPU with an 8-bit data path, on-chip program memory (Flash), data memory (SRAM), and a rich set of peripherals. PIC microcontrollers from Microchip are widely used in embedded control because the PIC16F1xxx enhanced mid-range core delivers deterministic interrupt latency, a small footprint, and the mature MPLAB X IDE toolchain. PIC MCUs sit in the hierarchy of microcontrollers -> embedded controllers -> semiconductors, and they serve as the 'brain' inside products ranging from sensor nodes to white goods.
Key features of the PIC16LF1519-E/P include 28KB Flash, 1024B SRAM, an integrated 10-bit A/D converter, multiple Enhanced Universal Synchronous/Asynchronous Receiver/Transmitters (EUSART) and MSSP (I2C/SPI) peripherals, and XLP technology for nanoWatt sleep currents. The 'LF' prefix designates the low-voltage variant optimized for 1.8V–3.6V operation, while the 'E' suffix denotes the -40C to +125C extended operating temperature range. The 40-pin PDIP package simplifies prototyping, breadboarding, and low-volume production.
Architecturally, the PIC16LF1519 uses Microchip's enhanced mid-range 8-bit core with a hardware multiplier and a 16-level hardware stack, executing most instructions in a single instruction cycle. Internal RC oscillators, PLL options, and flexible clock switching allow designers to balance computational throughput against active current draw. The XLP suite adds ultra-low-power sleep modes, deep sleep with RAM retention, and a Windowed Watchdog Timer (WWDT) for safety-sensitive applications.
Typical applications include low-power IoT sensor nodes, battery-powered consumer devices, industrial control and monitoring, white-goods and appliance controllers, and educational/hobbyist projects that benefit from through-hole soldering. Designers choose the PIC16LF1519-E/P when they need more Flash and peripherals than the PIC16F150x family, while still requiring a 1.8V minimum supply and nanoWatt XLP energy efficiency.
When designing with this MCU, ensure the chosen programmer/debugger (PICkit 3, PICkit 4, MPLAB ICD 3, or MPLAB ICD 4) supports the PIC16F1xxx family, and verify the in-circuit debugger pin assignments do not conflict with your application I/O. Decouple VDD with a 100nF ceramic capacitor placed within a few millimeters of the supply pins, and add a bulk capacitor if driving heavier loads from the I/O ports.
Drop-in alternatives for PIC16LF1519-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 PIC16LF1519-E/P (same form factor and footprint) — differing in Operating Temperature, ADC, MSL Level, Timers, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1518-E/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1517-E/P
✅ Drop-In✓ In Stock
$1.85 / Unit
View Datasheet →PIC16LF1508-E/P
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16LF1459-E/SS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.55 / Unit
View Datasheet →PIC16LF1509-I/SS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.4 / Unit
View Datasheet →PIC16LF1519-E/P Maximum Ratings & Electrical Characteristics
| Core | PIC16F1xxx enhanced mid-range 8-bit |
| Program Memory | 28KB Flash (16K x 14 words) |
| SRAM | 1024 bytes |
| Data EEPROM | Not specified on this datasheet variant |
| Maximum CPU Speed | 20 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V (LF low-voltage family) |
| Operating Temperature | -40C to +125C (E grade, extended) |
| ADC | 10-bit on-chip |
| Timers | Multiple 8-bit and 16-bit timers |
| Communication Peripherals | EUSART + MSSP (I2C/SPI) |
| I/O Pins | Up to 36 (package dependent) |
| Low-Power Feature | XLP nanoWatt technology, deep sleep with RAM retention |
| Watchdog | Windowed Watchdog Timer (WWDT) |
| Package | 40-pin PDIP (P) |
| Mounting Type | Through-Hole (DIP) |
| RoHS Status | Compliant |
| MSL Level | Not applicable (through-hole package) |
PIC16LF1519-E/P Pin Configuration
| Pin 1 | RA0/AN0 — Digital I/O / Analog input channel 0 |
| Pin 2 | RA1/AN1 — Digital I/O / Analog input channel 1 |
| Pin 3 | RA2/AN2 — Digital I/O / Analog input channel 2 |
| Pin 4 | RA3/AN3/VREF+ — Digital I/O / Analog input / Voltage reference positive |
| Pin 5 | RA4/AN4 — Digital I/O / Analog input channel 4 |
| Pin 6 | RA5/AN5 — Digital I/O / Analog input channel 5 |
| Pin 7 | RA6/OSC2 — Digital I/O / Oscillator output |
| Pin 8 | RA7/OSC1 — Digital I/O / Oscillator input |
| Pin 9 | VDD — Positive supply voltage |
| Pin 10 | VSS — Ground reference |
| Pin 11 | RB0/INT — Digital I/O / External interrupt |
| Pin 12 | RB1 — Digital I/O |
| Pin 13 | RB2 — Digital I/O |
| Pin 14 | RB3 — Digital I/O |
| Pin 15 | RB4 — Digital I/O |
| Pin 16 | RB5 — Digital I/O |
| Pin 17 | RB6/PGC — Digital I/O / In-circuit debug clock |
| Pin 18 | RB7/PGD — Digital I/O / In-circuit debug data |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
| Pin 21 | RC0 — Digital I/O |
| Pin 22 | RC1 — Digital I/O |
| Pin 23 | RC2 — Digital I/O |
| Pin 24 | RC3 — Digital I/O |
| Pin 25 | RC4 — Digital I/O |
| Pin 26 | RC5 — Digital I/O |
| Pin 27 | RC6 — Digital I/O |
| Pin 28 | RC7 — Digital I/O |
| Pin 29 | RE3/MCLR — Digital I/O / Master Clear (reset) |
| Pin 30 | RD0 — Digital I/O |
| Pin 31 | RD1 — Digital I/O |
| Pin 32 | RD2 — Digital I/O |
| Pin 33 | RD3 — Digital I/O |
| Pin 34 | RD4 — Digital I/O |
| Pin 35 | RD5 — Digital I/O |
| Pin 36 | RD6 — Digital I/O |
| Pin 37 | RD7 — Digital I/O |
| Pin 38 | VSS — Ground reference |
| Pin 39 | VDD — Positive supply voltage |
| Pin 40 | NC — Not connected (per datasheet; reserved/unused) |
Typical Applications
PIC16LF1519-E/P is suitable for 7 applications: Battery-Powered IoT Sensor Nodes, Industrial Control and Monitoring, White Goods and Appliance Controllers, Educational and Hobbyist Projects, Automotive Body and Interior Modules, Consumer Electronics and Wearables, LED Lighting and Signage Controllers.
Battery-Powered IoT Sensor Nodes
The PIC16LF1519-E/P's 1.8-3.6V supply range and XLP nanoWatt sleep modes make it ideal for battery-powered IoT sensor nodes running on 2xAA or single-cell Li-ion chemistries. With 28KB Flash and 1024B SRAM, it can host a wireless sensor application plus a small protocol stack. The integrated 10-bit ADC interfaces directly with analog sensors (temperature, light, gas), while deep-sleep current down in the nanoampere range extends coin-cell battery life to years. Designers can wake the MCU periodically via the Watchdog Timer or an external interrupt, perform a single ADC measurement, transmit via MSSP or EUSART, and return to sleep within milliseconds.
Recommended
Industrial Control and Monitoring
Industrial control panels and condition-monitoring devices leverage the PIC16LF1519-E/P's 10-bit ADC, multiple timers, and 36 I/O pins to read sensors and drive actuators. The extended -40C to +125C temperature rating (E grade) supports factory-floor and outdoor enclosures. The PIC16F1xxx core's deterministic interrupt latency suits real-time control loops, while 28KB Flash comfortably hosts Modbus or proprietary industrial protocols. EUSART plus MSSP (I2C/SPI) provide connectivity to digital sensors, HMI displays, and industrial bus transceivers.
Recommended
White Goods and Appliance Controllers
The PIC16LF1519-E/P is well-suited to washing machines, dishwashers, microwave ovens, and HVAC controllers where 28KB Flash accommodates user-interface state machines and motor-control algorithms. Its XLP features reduce standby power to meet stringent energy regulations like ENERGY STAR and EU Ecodesign. The 40-pin PDIP package is friendly to through-hole assembly used in high-reliability appliance boards, and the wide operating voltage tolerates rectified mains-derived supplies. Multiple timers support brushed-DC motor PWM, sensor sampling, and UI debounce.
Recommended
Educational and Hobbyist Projects
The PIC16LF1519-E/P's through-hole PDIP-40 form factor is breadboard-friendly, making it a popular choice for university embedded-systems labs, maker projects, and STEM education. MPLAB X IDE and the free XC8 compiler support the PIC16LF1519, and PICkit 4 / MPLAB Snap programmers debug it natively. With 28KB Flash and 1024B SRAM, students can implement UART communication, I2C peripherals, ADC sampling, PWM, and interrupt-driven control without running out of memory. The 1.8-3.6V supply is safely powered from USB or 3.3V regulator boards.
Recommended
Automotive Body and Interior Modules
The -40C to +125C extended temperature rating of the PIC16LF1519-E/P supports non-safety automotive body electronics such as interior lighting, seat controllers, and accessory modules. The 1.8-3.6V supply aligns with 3.3V regulated automotive rails, and XLP sleep modes minimize quiescent draw on always-on battery connections. 28KB Flash accommodates CAN-LIN gateway code or capacitive-touch firmware using the mTouch peripheral. For safety-critical systems, designers should select AEC-Q100-qualified PIC16 variants instead.
Recommended
Consumer Electronics and Wearables
Consumer wearables and portable gadgets benefit from the PIC16LF1519-E/P's combination of small code footprint, low active current, and deep-sleep nanoWatt modes. Devices such as fitness bands, remote controls, electronic toys, and smart-home sensor hubs run for months on a single coin cell. The 10-bit ADC captures bio-sensor signals or environmental data, while I2C/SPI interfaces communicate with companion RF transceivers or MEMS sensors. The PDIP-40 package is also suited to rapid prototyping before migrating to surface-mount QFN for production.
Recommended
LED Lighting and Signage Controllers
The PIC16LF1519-E/P can drive LED drivers and signage controllers using its PWM-capable timers and 10-bit ADC for ambient-light feedback. Architectural lighting, RGB pixel strips, and electronic signage require deterministic PWM timing that the PIC16F1xxx core delivers with single-cycle instruction execution. 28KB Flash supports advanced lighting effects, schedules, and DMX-style protocol handling. The 40-pin PDIP simplifies development boards and field-replaceable modules in commercial lighting installations.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1519-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1518-E/P | PIC16LF1517-E/P | PIC16LF1519-E/MV | PIC16LF1508-E/P |
|---|---|---|---|---|---|
| Package | PDIP-40 | PDIP-40 | PDIP-40 | VQFN-40 (MV) | PDIP-40 |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 28KB | 16KB | 14KB | 28KB | 7KB |
| SRAM | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes | 256 bytes |
| Operating Voltage | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V |
| Maximum CPU Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Temperature Grade | E (-40C to +125C) | E (-40C to +125C) | E (-40C to +125C) | E (-40C to +125C) | E (-40C to +125C) |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
Key Differentiators
- Highest Flash in the PIC16LF151x PDIP-40 family (vs PIC16LF1518-E/P)
- Wide 1.8-3.6V supply range suitable for battery-powered designs (vs PIC16F1519-I/P (F variant))
- Extended -40C to +125C operating temperature (vs PIC16LF1519-I/P (I grade))
Design Notes
Decouple VDD with a 100nF ceramic capacitor placed within 5mm of each VDD pin and connect VSS directly to a low-impedance ground plane. For battery applications, add a 10uF bulk capacitor on VDD to handle transient current spikes when the ADC or peripherals wake up. The PIC16LF1519-E/P supports three VDD/VSS pairs on the 40-pin PDIP (pins 9-10, 19-20, 38-39); bypass each pair independently for best noise immunity.
Keep crystal traces short and symmetric when using an external oscillator (RA6/OSC2 and RA7/OSC1 pins). Place the loading capacitors within 5mm of the oscillator pins and shield the traces with a ground pour to minimize EMI. If using the internal HFINTOSC, leave RA6/RA7 available for general I/O but configure the FOSC configuration bits accordingly.
MCLR (RE3) must be tied to VDD through a 10kΩ pull-up resistor for normal operation, or driven low by the programmer during in-circuit serial programming (ICSP). RB6/PGC and RB7/PGD are the ICSP clock and data pins - if these pins are used in the application, ensure the application circuit does not load them heavily, or debugging will fail. Never exceed 3.6V on any VDD pin or the LF variant will be damaged.
Compliance Information
RoHS compliant per Microchip product page. E grade (-40C to +125C) supports industrial environments but is not AEC-Q100 qualified - choose AEC-Q100-qualified PIC16 variants for safety-critical automotive applications.
