PIC16LF1619-E/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
PIC16LF1619-E/SO is an 8-bit PIC microcontroller from Microchip featuring 14KB Flash, 1KB RAM, and a 32MHz internal oscillator. Includes 10-bit ADC, Zero-Cross Detector, Windowed Watchdog Timer, and CRC module in a 20-pin SOIC package. Available from $1.05 in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- PIC16LF1619-E/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0758(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Zero-Cross Detection (ZCD) module enables TRIAC-based AC dimmer designs without external zero-cross circuitry
- 32MHz internal oscillator eliminates external crystal cost while supporting accurate serial communication up to 115200 baud
- 14KB Flash with 14-bit instruction width provides sufficient program space for mid-complexity control firmware in a low-cost 20-pin SOIC
Applications
PIC16LF1619-E/SO is commonly used in consumer lighting dimmers, fan controllers, and HVAC control boards where its integrated Zero-Cross Detector simplifies phase-angle firing of TRIACs without external comparator circuits. Its 10-bit ADC with 8 input channels handles NTC thermistor temperature sensing and potentiometer-based setpoint input simultaneously. The 1.8V to 3.6V low-voltage supply range suits battery-powered smart home accessories and IoT edge nodes requiring minimal active current.
Specifications
| Manufacturer Package Code | SOIC-20 |
| Factory Lead Time | 7Weeks |
| YTEOL | 13 |
| Bit Size | 8 |
| CPU Family | PIC |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e3 |
| On Chip Program ROM Width | 14 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Qualification Status | Not Qualified |
| RAM (bytes) | 1024 |
| ROM (words) | 8192 |
| ROM Programmability | FLASH |
| Speed | 32MHz |
| Supply Current-Max | 5mA |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.31.00.15 |
| Country of Origin | Philippines, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16LF1619-E/SO:
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 32MHz, CMOS, PDSO18
Frequently Asked Questions
How does the Zero-Cross Detector on PIC16LF1619-E/SO simplify AC dimmer or TRIAC control designs?
The integrated Zero-Cross Detection (ZCD) module monitors the AC line directly via a resistor network and generates a hardware interrupt at each zero-voltage crossing without requiring a separate optocoupler or comparator circuit. This allows the firmware to precisely schedule TRIAC firing angles in 1% steps across the AC half-cycle, supporting smooth 1% to 99% brightness control for incandescent or halogen loads. Eliminating an external zero-cross IC reduces BOM cost by roughly $0.15 per board in high-volume lighting productions.
What is the ADC resolution and channel count on PIC16LF1619-E/SO, and how many inputs can it sample simultaneously for multi-sensor systems?
PIC16LF1619-E/SO provides a 10-bit successive-approximation ADC with 8 multiplexed input channels capable of 100k samples per second. Although the multiplexer selects one channel at a time rather than sampling all simultaneously, typical NTC thermistor or potentiometer scans across all 8 channels complete in under 100 µs at 32 MHz. This is fast enough for thermostat or motor speed feedback loops polling 4 sensors at 1 kHz update rates.
How does the Windowed Watchdog Timer (WWDT) in PIC16LF1619-E/SO improve reliability compared to a standard watchdog in safety-critical appliance controllers?
The Windowed Watchdog Timer enforces a time window within which firmware must service the watchdog — clearing it too early or too late both trigger a reset. This prevents runaway code from servicing the watchdog in a tight loop, a failure mode that a standard watchdog cannot detect. In appliance control applications such as HVAC or white goods, where a stuck relay could pose a safety hazard, the WWDT ensures the firmware follows its intended timing schedule to within ±25% of the programmed 256ms to 2048ms window.
For a space-constrained PCB in a smart plug application, what footprint does the SOIC-20 package of PIC16LF1619-E/SO require, and can it be hand-soldered?
The SOIC-20 package has a body width of 7.5mm and a pitch of 1.27mm, giving a PCB land pattern footprint of approximately 10mm x 7.5mm — small enough for a 25mm x 25mm smart plug PCB. The 1.27mm pin pitch is well within hand-soldering capability using a standard 0.4mm solder tip, making it compatible with prototype and low-volume production runs that avoid the fine-pitch challenges of QFN packages. The 0.4mm lead thickness also provides reliable visual inspection under a 10x loupe after reflow.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.0300 | $2.03 |
| 12+ | $1.6460 | $19.75 |
| 50+ | $1.1759 | $58.79 |
| 150+ | $1.1258 | $168.87 |
| 250+ | $1.0758 | $268.95 |
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