PIC16F819-I/SS Microchip Integrated Circuit (Small Outline Packages) In Stock
8-bit PIC16 Flash microcontroller running up to 20MHz with integrated ADC and 20-pin SSOP package for compact embedded control designs. Features a non-volatile Flash program memory and 16 I/O pins covering analog and digital interface needs. Available from Microchip with lead-free RoHS-compliant packaging and worldwide distribution support.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- PIC16F819-I/SS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.5300(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 20 MHz maximum clock frequency with 8-bit PIC16 core for reliable embedded control tasks
- Integrated ADC enables direct digitization of analog sensor signals without external conversion components
- 20-pin SSOP package provides 16 I/O pins in a compact 5.3mm wide shrink small outline footprint
- Flash program memory allows in-circuit reprogramming for iterative firmware updates during development and production
Applications
The PIC16F819-I/SS is used in appliance control panels, HVAC sensor interfaces, and motor control modules where an 8-bit MCU with analog input capability and reprogrammable Flash memory is needed in a space-efficient package. Its 20-pin SSOP footprint and 16 available I/O pins make it well suited for replacing older one-time-programmable MCUs in consumer and industrial designs that require field firmware updates. The integrated ADC also enables direct connection to analog sensors such as NTC thermistors, potentiometers, and current sense resistors without external signal conditioning ICs.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SSOP-20 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Has ADC | YES |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC16 |
| Clock Frequency-Max | 20MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 1 |
| Number of I/O Lines | 16 |
| Number of Timers | 5 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 256 |
| ROM (words) | 3584 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 20MHz |
| Supply Current-Max | 4.2mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.15 |
| Country of Origin | Philippines, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16F819-I/SS:
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDSO20
Frequently Asked Questions
How many ADC channels does PIC16F819-I/SS provide and what resolution do they support for sensor measurements?
The PIC16F819-I/SS integrates a 10-bit ADC with multiple multiplexed input channels selectable from available analog-capable I/O pins. The 10-bit resolution provides 1024 discrete levels across the reference voltage span, enabling precise digitization of signals from NTC thermistors, potentiometers, and current sense resistors in industrial and consumer embedded control applications without requiring an external ADC chip.
What is the maximum clock speed of PIC16F819-I/SS and how does it compare to legacy PIC16C-series equivalents?
The PIC16F819-I/SS operates at up to 20 MHz using its internal or external oscillator sources, providing up to 5 MIPS throughput with the PIC16 4-clock-per-instruction architecture. This matches or exceeds many legacy PIC16C one-time-programmable devices, while the Flash program memory of PIC16F819-I/SS adds the advantage of in-circuit reprogramming via ICSP without requiring UV erasure or device replacement.
Is the 20-pin SSOP package of PIC16F819-I/SS compatible with hand soldering during prototype assembly?
The SSOP-20 package used by PIC16F819-I/SS has a lead pitch of 0.635mm, which is fine enough to challenge manual soldering with standard tips but is achievable with a fine-tip iron and flux. For volume production, the package is fully compatible with standard SMT reflow and wave soldering processes. Prototype builders unfamiliar with SSOP can use breakout adapter boards to convert the 0.635mm pitch to 2.54mm through-hole spacing for breadboard evaluation.
When should a designer upgrade from PIC16F819-I/SS to a higher-pin-count PIC16F variant in a product revision?
A designer should consider moving to a 28-pin or 40-pin PIC16F variant when the application outgrows the 16 available I/O pins of PIC16F819-I/SS, or when additional peripherals such as EUSART, SPI, or I2C master with dedicated pins are needed simultaneously with multiple ADC channels. As long as the design fits within 16 I/O pins, the 20MHz Flash MCU in SSOP-20 remains a cost-effective and compact solution for 8-bit embedded control tasks.
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