PIC16F819-I/SO - 8-bit 20MHz 3.5KB Flash MCU | Microchip
MPN: PIC16F819-I/SO ✓ فعالPIC16F819-I/SO جائزہ
A microcontroller is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working RAM, peripheral interfaces (ADC, timers, communication ports), and general-purpose I/O into one package. It belongs to the hierarchy: microcontroller -> embedded processor -> integrated circuit -> semiconductor. The PIC16F819-I/M8 line is part of Microchip's mid-range "PIC16F" family that emphasizes low power (nanoWatt technology), compact code footprint (35 single-word instructions), and upward compatibility with the older PIC16C7x/PIC16C62xA/PIC16C5X/PIC12CXXX devices, allowing code reuse across product generations.
Key features include 4V to 5.5V single-supply operation, an internal 8MHz oscillator (selectable via configuration fuses), 10-bit ADC with 5 channels, a hardware USART, a 16-bit timer/counter, and nanoWatt power management that drops supply current below 1uA in sleep mode. The device offers in-circuit serial programming (ICSP) and in-circuit debugger support via the standard ICD header.
Architecturally, the PIC16F819 uses a Harvard RISC core with separate program and data buses, 14-bit wide instruction words, and a hardware stack that simplifies C and assembly development. The Flash program memory supports 100K erase/write cycles typical and >40 years data retention per Microchip's published endurance specifications.
Typical applications include low-power sensor and edge-processing displays for embedded industrial IoT nodes, low-end sensor interfaces, and handheld consumer products. The integrated ADC and PWM simplify sensor signal conditioning and motor/LED control loops.
When designing with this device, place a 100nF decoupling capacitor within 5mm of VDD and a 10uF bulk capacitor near the IC. Reserve the MCLR pin with a 10kohm pull-up to VDD to avoid spurious resets, and ensure ICP/ICSP header access for field firmware updates.
کے لیے ڈراپ اِن متبادل PIC16F819-I/SO — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC16F819-I/SO (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Core Architecture, Timers, Operating Temperature, Internal Oscillator.
PIC16F819-I/PTSL
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F819-I/ML
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F819-E/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F818-I/SO
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16F88-I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F819-I/SO زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC16 (8-bit RISC, 14-bit instruction) |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| Data SRAM | 256 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Frequency | 20 MHz (200 ns instruction cycle) |
| Supply Voltage (VDD) | 4 V to 5.5 V |
| Internal Oscillator | 8 MHz |
| Digital I/O Pins | 16 |
| Analog-to-Digital Converter | 10-bit, 5 channels |
| Timers | 1 x 8-bit, 1 x 16-bit |
| Capture/Compare/PWM Modules | 1 |
| Serial Interfaces | 1x SSP (SPI or I2C), USART |
| پیکیج | 18-pin SOIC (SO, 0.300 in) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| آپریٹنگ درجہ حرارت | -40C to +85C (industrial) |
| Instruction Set | 35 single-word instructions |
| In-Circuit Programming | ICSP / ICD supported |
| RoHS اسٹیٹس | Compliant |
PIC16F819-I/SO پن کنفیگریشن
| پن 1 | RA2/AN2 — Port A bit 2 / Analog input channel 2 |
| پن 2 | RA3/AN3/VREF+ — Port A bit 3 / Analog input 3 / Positive voltage reference |
| پن 3 | RA4/AN4/T0CKI — Port A bit 4 / Analog input 4 / Timer0 clock input |
| پن 4 | RA5/MCLR/VPP — Port A bit 5 / Master Clear (reset) / Programming voltage |
| پن 5 | VSS — Ground reference |
| پن 6 | RB0/INT — Port B bit 0 / External interrupt |
| پن 7 | RB1 — Port B bit 1 |
| پن 8 | RB2 — Port B bit 2 |
| پن 9 | RB3/PGM — Port B bit 3 / Low-voltage ICSP clock |
| پن 10 | RB4 — Port B bit 4 |
| پن 11 | RB5 — Port B bit 5 |
| پن 12 | RB6/PGC — Port B bit 6 / ICSP serial clock |
| پن 13 | RB7/PGD — Port B bit 7 / ICSP serial data |
| پن 14 | VDD — Positive supply voltage (4V to 5.5V) |
| پن 15 | OSC2/CLKOUT — Crystal oscillator output / clock output |
| پن 16 | OSC1/CLKIN — Crystal oscillator input / external clock input |
| پن 17 | RA0/AN0 — Port A bit 0 / Analog input channel 0 |
| پن 18 | RA1/AN1 — Port A bit 1 / Analog input channel 1 |
عام استعمالات
PIC16F819-I/SO کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Sensor Interface Node, Consumer Appliance Control Board, LED Lighting Controller, Battery-Powered Remote / IoT Edge Device, Automotive Body / Interior Subsystem, Educational / Hobbyist MCU Platform.
Industrial Sensor Interface Node
The PIC16F819-I/SO suits low-cost sensor interfaces because its 10-bit 5-channel ADC and 16 digital I/O let it read multiple analog sensors and drive digital loads in a single chip. Per Microchip datasheet DS39631F, its 4V to 5.5V supply, 20 MHz CPU, and nanoWatt sleep mode below 1 uA fit battery or 24V-bus-powered industrial nodes. Place a 100nF decoupling cap within 5mm of VDD; the internal 8 MHz oscillator removes the need for a crystal in cost-sensitive sensor modules, and ICSP supports in-field firmware updates without removing the MCU from the PCB.
تجویز کردہ
Consumer Appliance Control Board
The PIC16F819-I/SO drives small appliance controls via its 1 CCP/PWM module, 16 digital I/O, and integrated USART for keypad/display interfaces. Per Microchip datasheet DS39631F, its 35 single-word instructions and 14-bit instruction width simplify assembly and C code development, while the 3.5 KB Flash is sized for typical appliance state-machine firmware. The -40C to +85C industrial temperature grade covers laundry, kitchen, and HVAC control environments, and the 18-pin SOIC package is friendly to single-layer consumer PCBs.
تجویز کردہ
LED Lighting Controller
The PIC16F819-I/SO drives LED dimming and color-mixing loops via its 10-bit ADC (for current/voltage sensing) and 1 CCP/PWM module, which produces stable PWM for LED current control. Per Microchip datasheet DS39631F, the 20 MHz instruction throughput and 14-bit PWM resolution support smooth dimming curves and color-temperature transitions. The internal 8 MHz oscillator eliminates external timing components in compact lighting PCBs, while the 16 I/O handle multiple LED channels and a DMX-style serial control interface.
تجویز کردہ
Battery-Powered Remote / IoT Edge Device
The PIC16F819-I/SO is a strong fit for battery-powered IoT edge nodes because its nanoWatt sleep mode drops current below 1 uA and the internal 8 MHz oscillator removes a crystal. Per Microchip datasheet DS39631F, the 256-byte EEPROM stores configuration and calibration data without external NVRAM, and the integrated USART and SSP (SPI/I2C) interface support short-range wireless modules such as Sub-GHz or BLE transceivers. Its 3.5 KB Flash is sufficient for sensor-fusion firmware in resource-constrained edge nodes.
تجویز کردہ
Automotive Body / Interior Subsystem
Although not AEC-Q100 qualified, the PIC16F819-E/SO variant supports the -40 to +125C extended temperature range suitable for non-safety automotive interior modules. Per Microchip datasheet DS39631F, its 4V to 5.5V supply tolerates nominal 5V automotive rails, and the integrated ADC/PWM handle LED drivers, simple motor controls, and switch-matrix scanning in door modules, seat controllers, and HVAC panels. Confirm AEC-Q100 requirements with the system safety plan before selecting for safety-critical subsystems.
تجویز کردہ
Educational / Hobbyist MCU Platform
The PIC16F819-I/SO is widely used as a teaching platform because the 35-instruction PIC16 mid-range instruction set is approachable, and ICSP/ICD support means beginners can program and debug the chip on a breadboard with a PICkit 3/4. Per Microchip datasheet DS39631F, the 3.5 KB Flash and 256-byte SRAM run code, hobbyist projects, and MPLAB X sample code without external memory. Its widespread distributor availability and low unit price make it a common starting point for educational and maker MCU projects.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16F819-I/SO — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16F819-I/P | PIC16F819-I/ML | PIC16F819-E/SO | PIC16F818-I/SO | PIC16F88-I/SO |
|---|---|---|---|---|---|---|
| Package | SOIC-18 (SO, 0.300 in) | DIP-18 (different footprint) | QFN-28 (different footprint) | SOIC-18 (same) | SOIC-18 (same) | SOIC-18 (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 3.5 KB (2K x 14) | 3.5 KB | 3.5 KB | 3.5 KB | 1.75 KB | 7 KB |
| Data EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 0 bytes | 256 bytes |
| Data SRAM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 128 bytes | 368 bytes |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| ADC Resolution / Channels | 10-bit / 5 channels | 10-bit / 5 channels | 10-bit / 5 channels | 10-bit / 5 channels | 10-bit / 5 channels | 10-bit / 7 channels |
| Internal Oscillator | 8 MHz | 8 MHz | 8 MHz | 8 MHz | None | 8 MHz |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +125C (extended) | -40C to +85C | -40C to +85C |
اہم امتیازی خصوصیات
- On-chip 256-byte data EEPROM absent in PIC16F818 (بمقابلہPIC16F818-I/SO)
- Internal 8 MHz oscillator eliminates external crystal (بمقابلہPIC16F818-I/SO)
- Extended-temperature grade variant available (بمقابلہPIC16F819-I/P (DIP-18))
- Compact Flash footprint vs PIC16F88 (بمقابلہPIC16F88-I/SO)
ڈیزائن نوٹس
Place a 100nF ceramic decoupling capacitor within 5mm of the VDD pin (pin 14) and a 10uF bulk capacitor near the IC. The PIC16F819 operates from 4V to 5.5V; for designs needing 3.3V rails use an LDO such as MCP1700 between the supply and VDD. Estimated: at 20 MHz with all peripherals active, ICC is typically 11 mA, so an MCP1700-3302 (250 mA LDO) provides >20x headroom.
Always pull MCLR (pin 5, RA5/MCLR/VPP) high with a 10kohm resistor to VDD; floating MCLR causes spurious resets and prevents reliable ICSP programming. For ICSP, reserve the PGC (RB6) and PGD (RB7) pins to the ICSP header without series resistors; in-circuit capacitors on RB6/RB7 interfere with programming. The internal 8 MHz oscillator is factory-trimmed but software calibration can tighten accuracy further for UART timing.
At 5V VDD and 20 MHz, the PIC16F819-I/SO dissipates well under 100 mW, so the SOIC-18 package requires no special thermal management. Ensure ambient temperature stays within -40C to +85C for the industrial (-I) grade; for elevated-temperature applications such as automotive interior modules, choose the PIC16F819-E/SO extended-temperature variant rated to +125C. Estimated: junction-to-ambient thermal resistance for SOIC-18 is approximately 85 C/W, so at 50 mW dissipation the junction rises ~4C above ambient.
Keep the crystal or resonator traces between OSC1 (pin 16) and OSC2 (pin 15) short and surround them with a ground pour to reduce EMI. When using the internal 8 MHz oscillator, leave OSC1/OSC2 as standard GPIO (RA7/RB0 on larger variants) or tie OSC1 to ground through a 1Mohm resistor to minimize leakage. For ADC accuracy, route analog traces (AN0 to AN4) away from digital switching signals and add a small RC filter at AVDD when present.
تعمیل کی معلومات
RoHS and REACH compliant per Microchip product page. Standard -I industrial grade (-40C to +85C); AEC-Q100 not qualified - choose PIC16F819-E/SO (-40C to +125C extended) for non-safety automotive interior modules only.
