PIC16F819T-E/SO - 8-bit 20MHz 3.5KB Flash MCU 18-SOIC | Microchip
N.º de pieza: PIC16F819T-E/SO ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $1.65 | $1,65 |
| 10 | $1.48 | $14,80 |
| 100 | $1.32 | $132,00 |
| 500 | $1.18 | $590,00 |
| 1.000 | $1.05 | $1.050,00 |
PIC16F819T-E/SO Descripción general
A microcontroller (MCU) is an integrated circuit that combines a CPU core, program memory, data memory, and peripheral interfaces in a single chip. Flash-based 8-bit MCUs such as the PIC16F819 sit at the foundation of embedded control hierarchies, bridging simple logic devices (timer ICs, glue logic) and higher-performance 32-bit Cortex-M or RISC-V application processors. The PIC® 16F architecture is fully upward compatible with the PIC16C7x, PIC16C62xA, PIC16C5X, and PIC12Cxxx devices, easing migration across Microchip's mature 8-bit portfolio.
Key features of the PIC16F819T-E/SO include a 10-bit ADC with up to 5 input channels, two 8-bit and one 16-bit timers with capture/compare, USART with LIN support, MSSP for SPI and I²C (master/slave), an 8 MHz internal oscillator, and nanoWatt power-saving modes that drop supply current to microampere levels during sleep. The 35 single-word instruction RISC core simplifies code generation and reduces firmware complexity compared with CISC alternatives.
Typical applications where this 18-pin 8-bit MCU fits include consumer appliances, automotive body modules (interior lighting, HVAC controls, sensor interfacing), industrial control panels with serial (LIN/UART) connectivity, low-cost sensor hubs, and battery-powered remote controls. Its wide operating temperature range and Flash programmability support in-circuit serial programming (ICSP) for both prototyping and production in-circuit firmware updates.
When designing with the PIC16F819T-E/SO, place decoupling capacitors (100 nF + 10 uF) within 5 mm of VDD/SS and use a 4.7 kΩ pull-up on MCLR as Microchip's reference design recommends. For software development, MPLAB X IDE with XC8 compiler and PICkit programmers remain the canonical toolchain. This page synthesises distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas directas para PIC16F819T-E/SO — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC16F819T-E/SO (mismo factor de forma y huella) — difiere en Core Architecture, Package, Timers, Internal Oscillator, ADC.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC16F819-I/SO
✅ Sustitución directa✓ En stock
$1.95 / unidad
Ver hoja de datos →PIC16F819-E/SO
✅ Sustitución directa✓ En stock
$2.2 / unidad
Ver hoja de datos →PIC16F819T-I/SO
✅ Sustitución directa✓ En stock
$2.18 / unidad
Ver hoja de datos →PIC16F88-I/SO
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
PIC16F818-I/SO
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
PIC16F819T-E/SO Valores máximos y características eléctricas
| Product Family | PIC® 16F |
| Core Architecture | 8-bit RISC |
| Instruction Set | 35 single-word instructions |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| RAM | 256 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Frequency | 20 MHz (200 ns instruction cycle) |
| Supply Voltage (Vdd) | 4 V to 5.5 V |
| I/O Pins | 16 |
| ADC | 10-bit, up to 5 channels |
| Timers | 2 x 8-bit, 1 x 16-bit with capture/compare |
| Communication Peripherals | USART (LIN support), MSSP (SPI / I²C master & slave) |
| Internal Oscillator | 8 MHz |
| Power-Saving Mode | nanoWatt Technology (sleep mode) |
| Encapsulado | 18-SOIC (0.295", 7.50 mm width) |
| Temperatura de funcionamiento | -40 °C to +125 °C (Industrial, 'E' suffix) |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
Configuración de pines de PIC16F819T-E/SO
| Pin 1 | RA2/AN2 — PORTA I/O / ADC channel 2 |
| Pin 2 | RA3/AN3/VREF+ — PORTA I/O / ADC channel 3 / ADC reference input |
| Pin 3 | RA4/AN4 — PORTA I/O / ADC channel 4 |
| Pin 4 | RA5/SS — PORTA I/O / MSSP slave select |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RB0/INT — PORTB I/O / External interrupt |
| Pin 7 | RB1 — PORTB I/O |
| Pin 8 | RB2 — PORTB I/O |
| Pin 9 | RB3/PGM — PORTB I/O / Low-voltage programming |
| Pin 10 | RB4 — PORTB I/O |
| Pin 11 | RB5 — PORTB I/O |
| Pin 12 | RB6/PGC — PORTB I/O / ICSP clock |
| Pin 13 | RB7/PGD — PORTB I/O / ICSP data |
| Pin 14 | VDD — Positive supply 4.0-5.5 V |
| Pin 15 | RA6/OSC2 — PORTA I/O / Crystal oscillator output |
| Pin 16 | RA7/OSC1 — PORTA I/O / Crystal oscillator input |
| Pin 17 | RA0/AN0 — PORTA I/O / ADC channel 0 |
| Pin 18 | RA1/AN1 — PORTA I/O / ADC channel 1 |
Aplicaciones típicas
PIC16F819T-E/SO es adecuado para 6 aplicacións: Consumer Appliance Control, Industrial Sensor Hubs, Automotive Body Electronics (Prototyping), Battery-Powered Remote Controls, LED Lighting Drivers, IoT Sensor Nodes (UART/MQTT Gateway Side).
Consumer Appliance Control
The PIC16F819T-E/SO suits cost-sensitive consumer appliances (coffee makers, fan controllers, washing-machine user interfaces) with its 16 I/O pins, 10-bit ADC for sensor interfacing, and USART. The 256-byte EEPROM stores user settings (mode, timer presets) across power cycles. nanoWatt sleep mode drops quiescent current to microampere levels, helping appliances meet ENERGY STAR standby budgets under 1 W.
Recomendado
Industrial Sensor Hubs
The PIC16F819T-E/SO integrates MSSP (SPI / I²C) and USART (LIN-capable), letting it aggregate temperature, pressure, and flow sensors on a single 18-pin footprint. The 20 MHz core and 5 MIPS throughput handle cyclic polling with 10-bit ADC precision at sub-millisecond intervals. Its extended -40 °C to +125 °C operating range supports factory-floor deployment without external thermal management.
Recomendado
Automotive Body Electronics (Prototyping)
Although not AEC-Q100 qualified, the PIC16F819T-E/SO is widely used to prototype automotive body modules (interior lighting, HVAC panel logic, sensor nodes) thanks to its USART with LIN support, which is the standard low-speed automotive serial bus. Engineering-grade temperature coverage (-40 to +125 °C) allows under-hood and cabin prototypes, while the Flash-based ICSP supports in-circuit firmware updates during vehicle validation cycles.
Recomendado
Battery-Powered Remote Controls
The PIC16F819T-E/SO fits handheld remote controls (TV, garage-door, RF key fobs) where 5 V supply is convenient from USB charging and nanoWatt sleep extends standby to years on a single coin cell. The 16 I/O pins drive IR LEDs, button matrices, and bi-directional RF modules. 3.5 KB Flash holds IR protocol libraries (NEC, RC5) plus user-customisation logic. Wide -40 to +125 °C range tolerates outdoor and automotive cabin environments.
Recomendado
LED Lighting Drivers
The PIC16F819T-E/SO drives multi-channel LED strings via PWM outputs derived from its 16-bit timer/capture/compare peripheral, enabling individually programmable colour-mixing or dim curves. The 10-bit ADC samples photodiodes or potentiometers for closed-loop brightness feedback. nanoWatt sleep drops standby draw in smart-bulb designs to meet EU standby regulations below 0.5 W, and 256 bytes EEPROM stores last user-set brightness after power-down.
Recomendado
IoT Sensor Nodes (UART/MQTT Gateway Side)
On the wired side of an IoT sensor network, the PIC16F819T-E/SO aggregates UART-attached digital sensors and bridges them to a Wi-Fi/Ethernet gateway through its MSSP (I²C/SPI) and USART. The 256-byte RAM and 3.5 KB Flash fit small protocol conversion (Modbus to JSON) tasks. The -40 to +125 °C tolerance lets it sit inside outdoor enclosures with minimal derating across seasons and latitudes.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC16F819T-E/SO — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC16F819-I/SO | PIC16F819-E/SO | PIC16F819T-I/SO | PIC16F88-I/SO | PIC16F818-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC | 18-SOIC (same) | 18-SOIC (same) | 18-SOIC (same) | 18-SOIC (same) | 18-SOIC (same) |
| Flash Program Memory | 3.5 KB (2K x 14) | 3.5 KB | 3.5 KB | 3.5 KB | 7 KB (+100%) | 1.75 KB (-50%) |
| RAM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 368 bytes (+44%) | 128 bytes (-50%) |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 64 bytes (-75%) |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Temperature | -40 °C to +125 °C (E grade) | -40 °C to +85 °C (I grade) | -40 °C to +125 °C (E grade) | -40 °C to +85 °C (I grade) | -40 °C to +85 °C (I grade) | -40 °C to +85 °C (I grade) |
| Shipping Format | Tape & Reel (T suffix) | Tube | Tube | Tape & Reel | Tube | Tube |
Diferenciadores clave
- Tape-and-Reel format at extended industrial temperature (frente a PIC16F819-I/SO)
- Doubled Flash and RAM headroom (frente a PIC16F818-I/SO)
- EEPROM retained vs PIC16F818 alternative (frente a PIC16F818-I/SO)
Notas de diseño
Place a 100 nF X7R ceramic bypass capacitor directly across VDD (pin 14) and VSS (pin 5) leads within 5 mm of the package to suppress switching noise from the internal oscillator. Add a bulk 10 uF tantalum or aluminium-polymer capacitor near the IC. For sleep-mode designs using nanoWatt Technology, the supply current drops below 1 µA but the voltage regulator still needs that bypass; otherwise VDD bounce can wake the MCU spuriously. Estimated: at 20 MHz and 5 V, IDD is ~7 mA at full code execution per the Microchip datasheet DC characteristics.
Route the ICSP clock (PGC, pin 12) and data (PGD, pin 13) traces together, straight and short, ideally with a guarded ground plane between them and any RF traces. Keep the MCLR/RA5 line free of high-current switching. Use a 10 kΩ pull-up on MCLR (if not used as I/O) and a 4.7 kΩ pull-up on RA5 to avoid in-circuit serial programming failures. Decoupling the ICSP pins helps the PICkit 4 in-circuit programmer operate reliably at 5 V.
Do not drive PORTB pins beyond the 5.5 V absolute maximum even when the rest of the system is 12 V or higher; clamp with a series resistor or level translator. Watch ADC sourcing: the PIC16F819 ADC is ratiometric with VDD, so a noisy supply appears as noisy ADC readings - digitise with averaging or use a low-impedance reference (e.g., MCP1525). When using the internal 8 MHz oscillator, calibrate OSCCAL on a per-unit basis or your UART timing may drift by ±2 % from the nominal 5 MIPS.
The 18-SOIC package has theta_JA of approximately 70 °C/W in still air (per JEDEC EIA/JESD51 measurement). At maximum 20 MHz and 5 V, the device burns ~35 mW worst case, so junction rise is only ~2.5 °C. For designs where the MCU shares a hot PCB with power components, ensure that the ground pad path keeps the case at ambient plus a small margin. The 'E' grade (-40 to +125 °C) does NOT mean the die runs hot; the upper limit is for the operating environment, not internal dissipation.
Información de cumplimiento
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose PIC16F15324-Q1 or PIC16F18855-Q1 for production automotive. Lead-free, halogen-free, conflict-mineral compliant per Microchip supplier declarations.