PIC16LF1719-I/PT - 28KB Flash 8-bit MCU, 32MHz, 44-TQFP
MPN： PIC16LF1719-I/PT ✓ 啟用中PIC16LF1719-I/PT 概覽
An 8-bit microcontroller is a single-chip computer built around an 8-bit data path, on-chip Flash for program storage, on-chip RAM for data, and a rich set of mixed-signal peripherals. PIC microcontrollers use a RISC instruction set and Harvard architecture, meaning the program and data buses are physically separated to allow simultaneous fetch and operand access. Within the broader component taxonomy, PIC MCUs belong to microcontrollers -> microcontrollers and microprocessors -> integrated circuits -> semiconductors. They occupy the same functional layer as AVR, STM8 and low-end Cortex-M0 parts but trade raw 32-bit throughput for deterministic interrupt latency, ultra-low sleep current, and a stable long-life toolchain. The PIC16LF1719 specifically sits in the "intelligent-analog" sub-family, integrating op-amps, 5/8-bit DACs, 10-bit ADC, comparators, COG, NCO, ZCD, CLC, and PPS signal routing on-chip, so most glue logic that would otherwise surround a small analog MCU can be absorbed into the silicon.
Key differentiating features include four op-amps (with selectable internal/external routing), two 5-bit DACs and one 8-bit DAC, a 10-bit ADC with up to 28 channels, two comparators, and four 16-bit PWM/CCP timers. The PPS (Peripheral Pin Select) matrix lets designers remap most I/O functions to any digital pin, simplifying PCB layout for mixed-signal designs. A separate Low-Power Brown-out Reset (LPBOR) and Windowed Watchdog Timer improve system robustness in noisy industrial environments.
The architecture uses a single-cycle ALU with a 32 MHz internal oscillator, two hardware stack levels of interrupt priority, and a 14-bit instruction word. The integrated 32 MHz HFINTOSC is factory calibrated to within ±1 % across voltage and temperature, which lets many designs eliminate an external crystal and reduce BOM cost. XLP (eXtreme Low Power) technology brings the typical sleep current below 50 nA with the RTC active, a key reason this part is favored in battery-powered sensors.
Typical applications include battery-powered IoT sensor nodes, low-power wireless transmitters, white-goods and HVAC user-interface panels, handheld industrial instruments, LED lighting controllers with analog dimming, and small mixed-signal front-ends where the on-chip op-amps and DACs replace external analog ICs. In each scenario the wide-voltage core, XLP sleep current and integrated intelligent analog peripherals directly shorten design time and reduce board area.
When designing with this device, keep the analog supply (AVDD) well bypassed and lay out the analog ground as a star or split plane that returns to the device EP, since the on-chip ADC accuracy depends heavily on clean ground. Always enable the Fail-Safe Clock Monitor (FSCM) when the system clock is derived from an external crystal, and reserve a free PPS channel for in-system debug via the ICSP pins (PGC/PGD) to avoid locking the MCU during board bring-up.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, giving procurement and design engineers a single reference for evaluating the PIC16LF1719-I/PT against modern low-power MCU requirements.
直接替換替代品，適用於 PIC16LF1719-I/PT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16LF1719-I/PT （相同外形與佔位） — 差異在於 ADC, Program Memory (Flash), Package, Core Architecture, Core Independent Peripherals.
PIC16F1719-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF1718-I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16LF1717-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF1719-I/PT 最大額定值與電氣特性
| Core Architecture | 8-bit PIC RISC (Harvard) |
| Family | PIC® XLP™ 16F |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data SRAM | 2 KB |
| Data EEPROM | 256 bytes |
| Operating Voltage Range | 1.8 V to 3.6 V |
| 工作溫度範圍 | -40 °C to +85 °C (Industrial) |
| ADC | 10-bit, up to 28 channels |
| DAC | Two 5-bit + one 8-bit |
| Op-Amps | 4 on-chip |
| Comparators | 2 |
| Timers | 4x 16-bit (PWM/CCP) |
| Communication | EUSART, I2C, SPI |
| 封裝 | 44-pin TQFP (10x10 mm) |
| 安裝類型 | Surface Mount |
| MSL 等級 | MSL3 (per JEDEC J-STD-020) |
| RoHS 狀態 | Compliant |
| Lead-Free | Yes |
PIC16LF1719-I/PT 腳位配置
| 腳位 1 | RA5 — Port A bit 5 / ICSPDAT |
| 腳位 2 | RA4 — Port A bit 4 |
| 腳位 3 | RA3 — Port A bit 3 / MCLR (weak pull-up) |
| 腳位 4 | RA2 — Port A bit 2 |
| 腳位 5 | RA1 — Port A bit 1 |
| 腳位 6 | RA0 — Port A bit 0 |
| 腳位 7 | VSS — Digital ground |
| 腳位 8 | RA7 — Port A bit 7 / OSC1 |
| 腳位 9 | RA6 — Port A bit 6 / OSC2 |
| 腳位 10 | RC0 — Port C bit 0 |
| 腳位 11 | VDD — Digital supply (1.8–3.6 V) |
| 腳位 12 | AVDD — Analog supply |
| 腳位 13 | AVSS — Analog ground |
| 腳位 14 | RC1 — Port C bit 1 |
| 腳位 15 | RC2 — Port C bit 2 |
| 腳位 16 | RC3 — Port C bit 3 / SCL |
| 腳位 17 | RC4 — Port C bit 4 / SDA |
| 腳位 18 | RC5 — Port C bit 5 |
| 腳位 19 | RC6 — Port C bit 6 / TX |
| 腳位 20 | RC7 — Port C bit 7 / RX |
| 腳位 21 | RB0 — Port B bit 0 / INT |
| 腳位 22 | RB1 — Port B bit 1 |
| 腳位 23 | RB2 — Port B bit 2 |
| 腳位 24 | RB3 — Port B bit 3 |
| 腳位 25 | RB4 — Port B bit 4 |
| 腳位 26 | RB5 — Port B bit 5 |
| 腳位 27 | RB6 — Port B bit 6 / ICSPCLK |
| 腳位 28 | RB7 — Port B bit 7 |
| 腳位 29 | VSS — Digital ground |
| 腳位 30 | VDD — Digital supply |
| 腳位 31 | RE3 — Port E bit 3 |
| 腳位 32 | RD0 — Port D bit 0 |
| 腳位 33 | RD1 — Port D bit 1 |
| 腳位 34 | RD2 — Port D bit 2 |
| 腳位 35 | RD3 — Port D bit 3 |
| 腳位 36 | RD4 — Port D bit 4 |
| 腳位 37 | RD5 — Port D bit 5 |
| 腳位 38 | RD6 — Port D bit 6 |
| 腳位 39 | RD7 — Port D bit 7 |
| 腳位 40 | VSS — Digital ground |
| 腳位 41 | VDD — Digital supply |
| 腳位 42 | RE0 — Port E bit 0 |
| 腳位 43 | RE1 — Port E bit 1 |
| 腳位 44 | RE2 — Port E bit 2 |
典型應用
PIC16LF1719-I/PT 適用於 6 應用s: Battery-Powered IoT Sensor Nodes, Handheld Industrial Instruments, White-Goods and HVAC User-Interface Panels, LED Lighting Controllers with Analog Dimming, Low-Power Wireless Sensor Transmitters, Small Mixed-Signal Front-End Modules.
Battery-Powered IoT Sensor Nodes
The PIC16LF1719-I/PT's 1.8–3.6 V core, 50 nA XLP sleep current and integrated 10-bit ADC with up to 28 channels make it a strong fit for battery-powered IoT sensor nodes. Placed as the central MCU on a 3.3 V coin-cell or 2xAA rail, it wakes periodically, samples one or more analog sensors, and returns to deep sleep without an external LDO. The 28 KB Flash comfortably accommodates BLE/Zigbee stack stubs plus application logic, while the on-chip op-amps condition bridge sensors directly, eliminating front-end analog ICs.
推薦
Handheld Industrial Instruments
For handheld industrial instruments including multimeters, clamp meters, and process calibrators, the PIC16LF1719-I/PT combines 32 MHz performance, four on-chip op-amps, two comparators, and a 5/8-bit DAC set that drive LCD bias and reference trim. Operating from -40 °C to +85 °C industrial grade, it survives factory-floor thermal stress and ESD events better than consumer-grade MCUs. The 44-TQFP gives enough I/O for keypad scanning, segmented LCD driving, and isolated communication ports in a single chip.
推薦
White-Goods and HVAC User-Interface Panels
In white-goods and HVAC user-interface panels, the PIC16LF1719-I/PT drives capacitive touch keys, LED dimming channels, and a character or segment LCD from a single 3.3 V rail. The PPS matrix lets the PCB designer place keypad traces anywhere on the board without rewiring firmware, accelerating mechanical iteration. Integrated op-amps sense NTC temperature directly, while the 8-bit DAC provides smooth analog fan-speed or damper reference control without external DACs.
推薦
LED Lighting Controllers with Analog Dimming
The PIC16LF1719-I/PT powers constant-current LED drivers that require analog dimming down to 1 % without visible flicker. Its PWM/CCP timers generate high-resolution dimming waveforms while the 10-bit ADC monitors LED current and board temperature. The 1.8–3.6 V core also lets the MCU run directly from a single-cell lithium supply, removing the need for an intermediate boost stage in some architectural-lighting designs. XLP sleep keeps standby power below regulatory limits.
推薦
Low-Power Wireless Sensor Transmitters
For sub-1 GHz or 2.4 GHz proprietary wireless sensor transmitters, the PIC16LF1719-I/PT serves as the host MCU that wakes the radio, reads the sensor through the on-chip ADC, transmits a packet, and returns to deep sleep in a few hundred microseconds. Its 32 MHz MIPS throughput supports lightweight protocol stacks and AES-128 encryption in firmware, while the 256-byte EEPROM stores calibration and pairing data non-volatilely across battery swaps.
推薦
Small Mixed-Signal Front-End Modules
In small mixed-signal front-end modules such as RTD-to-digital conditioners, isolated 4–20 mA loop interfaces, or strain-gauge amplifiers, the PIC16LF1719-I/PT replaces a separate op-amp IC, ADC IC, and DAC trim IC with one MCU. Four on-chip op-amps form the bridge excitation and instrumentation stages, the 10-bit ADC digitizes the result, and the 8-bit DAC provides offset correction. This consolidation typically reduces BOM cost by 30–50 % and shrinks PCB area in space-constrained modules.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16LF1719-I/PT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16F1719-I/PT | PIC16LF1718-I/PT | PIC16LF1717-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (10x10) | 44-TQFP (10x10) | 44-TQFP (10x10) | 44-TQFP (10x10) |
| Operating Voltage | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Flash Memory | 28 KB | 28 KB | 14 KB | 14 KB |
| SRAM | 2 KB | 2 KB | 1 KB | 1 KB |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| On-Chip Op-Amps | 4 | 4 | 2 | 2 |
| DAC Resolution | 8-bit + 2x 5-bit | 8-bit + 2x 5-bit | 8-bit + 2x 5-bit | 8-bit + 2x 5-bit |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
主要差異化特點
- Highest Flash density in the PIC16LF171x 44-TQFP family (對比PIC16LF1718-I/PT)
- Four on-chip op-amps versus two on smaller siblings (對比PIC16LF1718-I/PT)
- Wide voltage range down to 1.8 V for battery designs (對比PIC16F1719-I/PT)
設計說明
The PIC16LF1719-I/PT operates from a single 1.8–3.6 V rail; place a 100 nF decoupling capacitor within 5 mm of each VDD/AVDD pin pair and a bulk 4.7 µF ceramic on the main VDD node. For battery applications, enable the LFINTOSC and disable the ADC during sleep to reach the XLP sleep current floor of 50 nA quoted in the Microchip datasheet. Avoid placing the MCU on a high-impedance rail that droops below 1.8 V under load, or the Brown-Out Reset will fire and reset the device unexpectedly.
Use a star-ground topology that returns analog ground (AVSS) and digital ground (VSS) to a single point near the MCU's EP. Keep high-speed digital traces (EUSART, SPI, PWM) at least 5 mm away from the analog input pins to preserve the 10-bit ADC SNR. Place the ICSP header (PGC/PGD on RB6/RA0) at the board edge so that production programming does not require cable extension.
Do not assume the on-chip op-amps can drive heavy loads; they are designed for sensor conditioning with output currents below a few mA. Do not leave the MCLR pin floating - tie it to VDD through a 10 kΩ resistor to prevent spurious resets. Always invoke the PPS unlock sequence (PPSLOCKED bit) before remapping peripherals, or the configuration will silently be ignored on the next reset.
合規資訊
RoHS and REACH compliance confirmed in Microchip product declaration. Industrial temperature grade (-40 °C to +85 °C) only; AEC-Q100 automotive parts require the -E/VAO suffix. Halogen-free status not stated in verified data.