PIC16LF819-I/SO - 8-Bit PIC MCU, 3.5KB Flash, 16 I/O | Microchip
MPN: PIC16LF819-I/SO ✓ فعالPIC16LF819-I/SO جائزہ
An 8-bit PIC microcontroller is a RISC (Reduced Instruction Set Computer) processor that executes one instruction per clock cycle (except branches), enabling deterministic timing and high code density. The PIC16F/LF family sits in Microchip's mid-range 8-bit portfolio, bridging the gap between baseline 8-pin PIC10/12 devices and the higher-performance PIC18 family. The PIC16LF819 shares its instruction set and peripheral set with the PIC16F818 and PIC16F87, enabling upward code compatibility across the family and a clear migration path to devices with more memory or more pins.
Key features include five channels of 10-bit analog-to-digital conversion, a synchronous serial port configurable for SPI or I2C, an asynchronous serial port for RS-232-style links, two capture/compare/PWM modules, and ICD (In-Circuit Debugger) support via the dedicated ICSP interface. The nanoWatt power-managed architecture provides multiple idle and sleep modes plus a watchdog timer and brown-out reset, allowing aggressive current budgets in battery-driven sensor and instrumentation designs.
Typical applications include portable instrumentation, data acquisition front-ends, environmental and process sensor conditioning, low-power remote controls, and consumer white goods where 16 I/O and 3.5 KB of code space are sufficient. The wide VDD range makes it equally at home on a 3 V coin-cell rail or a regulated 5 V industrial supply. The industrial temperature grade supports outdoor enclosures, HVAC controls, and metering equipment.
A practical design consideration: because the device has no on-chip debug beyond ICD, budget board area for the ICSP header (5-pin or RJ-11) and use series resistors on PGC/PGD if those pins must also serve as general I/O after development. Always tie MCLR through a 10 kohm pull-up to VDD to prevent spurious resets during power-up; a 100 nF decoupling capacitor must sit within 5 mm of the VDD pin.
This page synthesizes distributor pricing, drop-in same-family and same-package alternatives, and practical design notes that are not aggregated on a single manufacturer page.
کے لیے ڈراپ اِن متبادل PIC16LF819-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 PIC16LF819-I/SO (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Core Architecture, ADC, Operating Temperature, Program Memory (Flash).
PIC16LF819-I/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LF819-I/MLTSL
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F819-I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F818-I/SO
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16LF818-I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LF88-I/SO
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LF819-I/SO زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Product Type | 8-bit PIC microcontroller (MCU) |
| Family | PIC16F/LF (mid-range 8-bit) |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| Data Memory (SRAM) | 256 bytes |
| EEPROM Data Memory | 256 bytes |
| CPU Speed | 10 MHz (10 MIPS) |
| Operating Voltage (VDD) | 2.0 V to 5.5 V |
| Digital I/O Pins | 16 |
| ADC | 10-bit, 5 channels |
| Timers | 2 x 8-bit + 1 x 16-bit |
| CCP/PWM Modules | 2 |
| Internal Oscillator | 8 MHz (factory calibrated) |
| Serial Interfaces | 1 x SSP (SPI/I2C), 1 x AUSART (RS-232) |
| آپریٹنگ درجہ حرارت | -40C to +85C (industrial, '-I') |
| پیکیج | 18-pin SOIC (SO), wide-body, 7.5 mm body width |
| ماؤنٹنگ ٹائپ | Surface Mount |
| RoHS اسٹیٹس | Compliant (lead-free) |
| MSL لیول | 1 |
| Debug Support | ICSP/ICD |
| Brown-out Reset | Yes |
| Watchdog Timer | Yes |
PIC16LF819-I/SO پن کنفیگریشن
| پن 1 | RA0/AN0 — Digital I/O RA0 / analog input AN0 |
| پن 2 | RA1/AN1 — Digital I/O RA1 / analog input AN1 |
| پن 3 | RA2/AN2 — Digital I/O RA2 / analog input AN2 |
| پن 4 | MCLR/VPP — Master clear (reset) / programming voltage |
| پن 5 | VSS — Ground reference |
| پن 6 | RB0/INT — Digital I/O RB0 / external interrupt |
| پن 7 | RB1 — Digital I/O RB1 |
| پن 8 | RB2 — Digital I/O RB2 |
| پن 9 | RB3/PGM — Digital I/O RB3 / LVP programming |
| پن 10 | RB4 — Digital I/O RB4 |
| پن 11 | RB5 — Digital I/O RB5 |
| پن 12 | RB6/PGC — Digital I/O RB6 / ICSP clock |
| پن 13 | RB7/PGD — Digital I/O RB7 / ICSP data |
| پن 14 | VDD — Positive supply (2.0 V to 5.5 V) |
| پن 15 | OSC2/CLKO — Crystal/oscillator output / I/O |
| پن 16 | OSC1/CLKI — Crystal/oscillator input |
| پن 17 | RA7/OSC1 — Digital I/O RA7 / alt oscillator input |
| پن 18 | RA6/OSC2 — Digital I/O RA6 / alt oscillator output |
عام استعمالات
PIC16LF819-I/SO کے لیے موزوں ہے 6 ایپلیکیشنs: Portable Battery-Powered Sensor Node, Industrial Process Monitor (16-bit Sensor Conditioning), Low-Cost HVAC Control Board, Consumer White Goods User Interface, Educational Microcontroller Trainer, Automotive Interior Lighting Controller.
Portable Battery-Powered Sensor Node
The PIC16LF819-I/SO fits portable sensor nodes because of its 2.0 V to 5.5 V VDD range and nanoWatt sleep current under 1.5 uA at 25C, which lets it run for years from a 3 V coin cell when waking only to sample. The 10-bit 5-channel ADC reads thermistor, photodiode, or strain-gauge signals directly without an external amplifier, while the 16-bit timer drives wake-on-comparison cycles. The 256-byte EEPROM logs hourly readings without external FRAM, and the 3.5 KB flash holds state-machine plus calibration code. Compared with a PIC16F819, the LF variant uniquely supports depleted-cell operation down to 2.0 V - critical for primary lithium chemistries that sag to 2.4 V end-of-life. Designers should bias unused I/O as outputs low to minimise shoot-through in sleep mode.
تجویز کردہ
Industrial Process Monitor (16-bit Sensor Conditioning)
The PIC16LF819-I/SO suits industrial process monitors that must operate across -40C to +85C (industrial -I grade) and on 24 V loop power regulated down to 5 V or 3.3 V rails. Its 10 MIPS throughput allows multiplexed reads from multiple 4-20 mA loops via the ADC, and the two CCP/PWM modules can drive isolated 4-20 mA or 0-10 V output stages for valve control. The synchronous serial port talks to external SPI FRAM for non-volatile logging, while the AUSART provides RS-485 connectivity to a PLC or HMI panel. The 18-pin SOIC package is reflow-solderable on a 4-layer industrial PCB, and the brown-out reset plus watchdog timer keep the node alive through brown-outs on long sensor cables.
تجویز کردہ
Low-Cost HVAC Control Board
The PIC16LF819-I/SO is well matched to HVAC control boards that need deterministic 10 MIPS throughput to scan keypads, drive 7-segment or character LCDs, and switch relays or TRIAC drivers through opto-isolated outputs. Its 16 I/O pins handle matrix keypads plus three or four relay outputs, while the 10-bit ADC reads NTC thermistors for supply-air and return-air temperature with 0.5C resolution. The wide 2.0 V to 5.5 V VDD range allows direct operation from a rectified 5 V regulator on the HVAC line. The -40C to +85C industrial grade tolerates attic and outdoor-cabinet installation, and ICSP debug lets engineers iterate on thermostat firmware using only a 5-pin header, no JTAG required.
تجویز کردہ
Consumer White Goods User Interface
The PIC16LF819-I/SO powers user-interface panels in washing machines, dishwashers, and microwave ovens where 16 I/O, 3.5 KB of code, and a sub-$3 unit price are key. Its CCP/PWM channels drive LED backlight brightness with hardware fade, while the AUSART links to a main appliance MCU for status reporting. The nanoWatt idle mode drops below 50 uA at 5 V when the appliance is in standby, helping meet Energy Star standby budgets. The 18-pin SOIC is small enough to fit behind a 7-segment or character LCD module, and the industrial -I grade survives the heat and humidity of a kitchen environment without thermal derating.
تجویز کردہ
Educational Microcontroller Trainer
The PIC16LF819-I/SO is widely used in university and hobbyist trainers because of its 35 single-word instruction set, ICD debugging, and free MPLAB X IDE + XC8 toolchain from Microchip. The 18-pin SOIC is breadboard-friendly with a SOIC-to-DIP adapter, and the part tolerates the 3.3 V to 5 V supply range found on common development boards. 3.5 KB of flash holds a real-time operating demo, an interrupt-driven timer exercise, and a UART echo in a single project - making it a richer teaching platform than PIC12C5xx devices with only 0.75 KB of code space. The -I grade means the same part works in lab and field demonstrations across seasons.
تجویز کردہ
Automotive Interior Lighting Controller
The PIC16LF819-I/SO drives interior LED controllers and ambient lighting strips where deterministic PWM is required and the part must tolerate automotive temperature swings. Its two CCP/PWM modules generate hardware PWM at 10-bit resolution, smooth enough for daylight-to-nightlight fades without flicker. The AUSART channel interfaces to a CAN gateway chip for body-control network messages, and the 10-bit ADC monitors supply voltage for load-dump protection up to 5.5 V regulated. The 18-pin SOIC is small enough to fit behind a dome-light housing, and brown-out reset plus watchdog timer handle crank-celldown events typical on automotive buses. Designers should add external TVS diodes on VDD since the LF819 itself has no load-dump rating.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16LF819-I/SO — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16LF819-I/P | PIC16F819-I/SO | PIC16F818-I/SO | PIC16LF818-I/SO | PIC16LF88-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-pin SOIC (SO) | 18-pin PDIP (P) | 18-pin SOIC (SO) | 18-pin SOIC (SO) | 18-pin SOIC (SO) | 18-pin SOIC (SO) |
| Program Memory (Flash) | 3.5 KB | 3.5 KB | 3.5 KB | 1.75 KB | 1.75 KB | 7.2 KB |
| Data Memory (SRAM) | 256 B | 256 B | 256 B | 128 B | 128 B | 368 B |
| EEPROM | 256 B | 256 B | 256 B | 128 B | 128 B | 256 B |
| Operating Voltage (VDD) | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| CPU Speed | 10 MHz / 10 MIPS | 10 MHz / 10 MIPS | 10 MHz / 10 MIPS | 10 MHz / 10 MIPS | 10 MHz / 10 MIPS | 20 MHz / 5 MIPS |
| nanoWatt Low-Power Modes | Yes | Yes | Limited | Limited | Yes | Yes |
اہم امتیازی خصوصیات
- Wide 2.0 V to 5.5 V VDD range with full nanoWatt support (بمقابلہPIC16F819-I/SO)
- 3.5 KB flash - 2x more program memory than PIC16F/LF818 (بمقابلہPIC16F818-I/SO)
- Pin-compatible upgrade to PIC16LF88 for higher-end designs (بمقابلہPIC16LF88-I/SO)
ڈیزائن نوٹس
Place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 14) and a 10 uF bulk capacitor on the same rail. The nanoWatt sleep current is specified with all I/O configured as outputs low and the WDT disabled; configure unused pins as outputs rather than inputs to avoid floating-input shoot-through current. For primary-battery operation at end-of-life near 2.0 V, the brown-out reset should be set to BOREN=ON with BORV=00 (2.0 V threshold) per datasheet 30620A.
Route the ICSP signals PGC (RB6) and PGD (RB7) with short traces and avoid crossing them with switching signals; place a 100 ohm series resistor on each if RB6/RB7 must also drive LEDs or switches in the final design. Keep the crystal traces (OSC1/OSC2) short and symmetric, with the load capacitors within 3 mm of the MCU pins. Place MCLR (pin 4) directly under a 5-pin ICSP header with a 10 kohm pull-up to VDD and a 100 nF to ground to filter ESD.
Do not leave MCLR floating - the part will reset intermittently. Always honour the flash endurance spec (100K erase/write cycles typical, 1M for EEPROM) when designing logging firmware. The 10-bit ADC requires the acquisition time be calculated based on source impedance; for 10 kohm or higher source impedance add a 1 nF hold capacitor or use a slower conversion. ICD pins RB6/RB7 must be set as digital I/O in firmware or the debugger cannot connect.
تعمیل کی معلومات
RoHS compliant per Microchip product page; 'LF' prefix denotes lead-free. Industrial -I grade -40C to +85C, not AEC-Q100 qualified. For AEC-Q100 automotive use consider PIC16F819-I/SO equivalent or migrate to PIC16F1938-E/SO with automotive qualification.
