PIC16LF1765-I/SL - 8-bit XLP MCU, 14KB Flash, 32MHz | Microchip
MPN: PIC16LF1765-I/SL ✓ Hoạt độngPIC16LF1765-I/SL Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O. The PIC16 family uses a RISC-based 8-bit core optimised for deterministic instruction execution and low power, sitting in the broader hierarchy of embedded microcontrollers -> microcontrollers -> semiconductor ICs. XLP variants such as the PIC16LF1765-I/SL add sub-uA sleep modes and nanoWatt technology, enabling multi-year coin-cell or battery-only deployments without external power management.
Key features include 14 KB of self-programmable Flash, configurable on-chip peripherals including op-amps, 10-bit ADC, zero-cross detect, high-current I/Os, programmable ramp generators, and multiple communication peripherals (I2C, SPI, UART). The SOIC-14 footprint gives designers a small, hand-solderable through-hole-replacement style SMD package with broad third-party tool support from PICkit, ICD, and MPLAB X ecosystem. 32 MHz operation provides 8 MIPS sustained throughput for real-time control loops.
Typical applications include low-power IoT sensor nodes, battery-backed thermostats, LED lighting controllers, white-goods user-interface boards, and portable medical accessories. The compact SOIC-14 pinout also serves hand-held instrumentation where board area is constrained and where deep-sleep current directly affects field-replaceable battery service intervals.
When designing with this MCU, allocate at least one I/O for an in-circuit serial programming (ICSP) header so the device can be re-flashed in the field, and respect the Vdd/Vss decoupling guidance (100 nF ceramic at every supply pin plus a bulk 10 uF) to keep the internal FRC oscillator stable. This page synthesizes distributor pricing, drop-in PIC16F1765 and PIC16LF176x family alternatives, and practical design notes that go beyond what is in the bare manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF1765-I/SL — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16LF1765-I/SL (cùng hình factor và footprint) — khác nhau ở ADC, Package, Operating Temperature, Program Memory (Flash), Core Architecture.
PIC16LF1765T-I/SL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1765-I/SL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1825-I/SL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1765-I/SL Tỷ lệ tối đa & tính chất điện
| Architecture | 8-bit PIC® XLP™ RISC |
| Family | PIC16F176x / PIC16LF176x |
| Program Memory (Flash) | 14 KB (8K x 14) |
| RAM | 1 KB |
| Maximum CPU Frequency | 32 MHz |
| Nhiệt độ hoạt động | -40 °C to +85 °C (industrial, suffix "I") |
| ADC | 10-bit (per datasheet family) |
| Op-amps / Comparators | On-chip (per PIC16LF176x family features) |
| Zero-Cross Detect | Yes (per PIC16LF176x family features) |
| High-Current I/O | Yes (per PIC16LF176x family features) |
| Hộp | 14-pin SOIC (SL) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân PIC16LF1765-I/SL
| Chân 1 | RA5 — Digital I/O / analog input |
| Chân 2 | RA4 — Digital I/O / analog input |
| Chân 3 | RA3 — Digital I/O / analog input / MCLR (per device configuration) |
| Chân 4 | RA2 — Digital I/O / analog input |
| Chân 5 | RA1 — Digital I/O / analog input |
| Chân 6 | RA0 — Digital I/O / analog input |
| Chân 7 | VSS — Ground reference |
| Chân 8 | RB7 — Digital I/O / ICSPDAT |
| Chân 9 | RB6 — Digital I/O / ICSPCLK |
| Chân 10 | RB5 — Digital I/O |
| Chân 11 | RB4 — Digital I/O |
| Chân 12 | RB3 — Digital I/O |
| Chân 13 | RB2 — Digital I/O |
| Chân 14 | VDD — Positive supply |
Ứng dụng tiêu biểu
PIC16LF1765-I/SL phù hợp cho 6 Áp dụngs: Battery-Powered IoT Sensor Node, LED Lighting Controller / Driver, White-Goods User Interface Board, Portable Medical Accessory, Smart Thermostat / HVAC Controller, Hand-Held Test Instrument / Remote Control.
Battery-Powered IoT Sensor Node
The PIC16LF1765-I/SL is an ideal core for IoT sensor nodes running on coin-cell or 2xAA batteries. Its XLP (nanoWatt) sleep current is sub-microampere, while 14 KB of Flash is enough for sensor-conditioning firmware plus a small communication stack. The on-chip 10-bit ADC handles most analogue sensors, and the integrated op-amps let the board eliminate external signal-conditioning parts. Place the MCU between the battery and a low-power RF or LoRa sub-GHz module, wake on interrupt, sample, transmit, and return to deep sleep. With typical duty cycles of 0.1%, the PIC16LF1765-I/SL extends battery life into multi-year territory.
Được đề xuất
LED Lighting Controller / Driver
The PIC16LF1765-I/SL is well matched to dimmable LED lighting controllers thanks to its high-current I/O (sinking tens of milliamps per pin) and integrated zero-cross detect for TRIAC phase-cut dimming. The on-chip op-amps can perform closed-loop current sensing without external active parts, reducing BOM cost. The 14 KB Flash fits firmware for flicker-free dimming curves, DMX or 0-10 V interface handling, and in-field OTA-style calibration via ICSP. The 14-pin SOIC is small enough for retrofit lamp PCBs, and the XLP sleep current is irrelevant when mains-powered but useful for emergency-pack backup.
Được đề xuất
White-Goods User Interface Board
For washing machines, dishwashers, ovens, and refrigerators the PIC16LF1765-I/SL offers 32 MHz of deterministic throughput for user-interface boards: rotary encoders, capacitive or mechanical key matrices, segment LCD or LED indicators, and buzzer control. Its 14 KB Flash holds state-machine firmware with multiple wash/dry programs, while 1 KB of RAM is sufficient for display refresh buffers. The industrial -40 °C to +85 °C temperature grade handles the thermal environment of an appliance control compartment. SOIC-14 is compatible with wave-solder reflow profiles used in white-goods manufacturing lines.
Được đề xuất
Portable Medical Accessory
Portable medical accessories such as peak-flow meters, glucose-monitor accessories, and pulse-oximeter reference boards benefit from the PIC16LF1765-I/SL's XLP core. The op-amps condition front-end bio-sensor signals (photodiode, thermistor) without external active components, while the 10-bit ADC quantises them with adequate resolution for diagnostic indicators. The industrial temperature range accommodates clinical and home-use environments. Battery life is extended by the nanoWatt sleep, and the SOIC-14 footprint keeps the PCB small enough for hand-held enclosures.
Được đề xuất
Smart Thermostat / HVAC Controller
The PIC16LF1765-I/SL drives residential and light-commercial smart thermostats. Its zero-cross detect simplifies mains-frequency synchronisation for TRIAC-controlled fan or compressor switching, and its op-amps handle thermistor-bridge temperature sensing directly. The 14 KB Flash stores scheduling firmware plus a small UI library, while the XLP sleep mode keeps the standby current negligible on battery-backed thermostats that retain clock during power loss. The SOIC-14 pinout is well within the package budget of wall-mounted thermostats.
Được đề xuất
Hand-Held Test Instrument / Remote Control
The PIC16LF1765-I/SL is a good fit for compact hand-held test instruments and infrared/RF remote controls. The on-chip op-amps drive the front-end signal chain, the high-current I/O can directly drive an IR LED without a transistor, and the XLP sleep current keeps the standby drain low. The 14-pin SOIC is hand-solderable for prototype builds and is accepted by most contract manufacturers. With the MPLAB X and PICkit toolchain, designers can iterate quickly and re-flash units in the field via ICSP.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF1765-I/SL — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16LF1765T-I/SL | PIC16F1765-I/SL | PIC16LF1825-I/SL |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SOIC-14 (SL) | SOIC-14 (SL) - same | SOIC-14 (SL) - same | SOIC-14 (SL) - same |
| Flash Memory | 14 KB | 14 KB | 14 KB | 14 KB |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB |
| Maximum Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| XLP / Low-Power | Yes (LF / nanoWatt) | Yes (LF / nanoWatt) | No (F standard voltage) | Yes (LF / nanoWatt) |
| Op-Amps / Zero-Cross Detect | Yes | Yes | Yes | No (mTouch instead) |
| Temperature Grade | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
Bảo phân biệt quan trọng
- On-chip op-amps and zero-cross detect integrated with XLP core (vsPIC16LF1825-I/SL)
- Tape-and-reel SL variant offers identical die on the same SOIC-14 footprint (vsPIC16LF1765T-I/SL)
- Same XLP core with extended low-voltage Vdd support versus standard F variant (vsPIC16F1765-I/SL)
Ghi chú thiết kế
Estimated: with a 3.0 V supply and the PIC16LF1765-I/SL running at 32 MHz, the active current is roughly 5-7 mA depending on which peripherals are clocked. Drop to 32 kHz internal LFINTOSC for sleep polling, which yields single-digit microampere active currents and sub-uA deep-sleep currents. Decoupling: 100 nF ceramic directly at Vdd and another at Vss, plus a 10 uF bulk capacitor within 1 cm of the pins to stabilise the FRC oscillator.
Keep the ICSP header (ICSPCLK, ICSPDAT, MCLR, Vdd, Vss) on a 5-pin 0.1" header or pogo-pad footprint so the unit can be re-flashed in production or in the field with a PICkit 4 or ICD 4. Place the ICSP header at the board edge or under a service-cover flap; do not bury it under RF shielding or other components. A 4k7 pull-up on MCLR is required unless the internal weak pull-up is enabled in configuration bits.
Do not assume that the PIC16LF1765-I/SL has the same Vdd range as the PIC16F1765. The LF variant is the low-voltage XLP part and may not operate correctly above its specified Vdd maximum - confirm the Vdd upper limit in the datasheet electrical characteristics table before substituting. Also remember that configuration bits lock the oscillator mode and pin functions; setting them incorrectly can leave the device un-flashable without a high-voltage programmer.
Place the device away from high-current switching traces and high-dV/dt nodes. The op-amps inside the PIC16LF1765-I/SL are sensitive to supply noise; a star-ground topology with the MCU ground pin connected close to a low-impedance ground pour keeps analog performance stable. If a switching regulator is on the same board, route the analog ground separately back to a common star point at the bulk capacitor negative terminal.
Thông tin tuân thủ
RoHS and lead-free per Microchip product page. Not AEC-Q100 qualified - choose a PIC16F1765 or PIC16LF1765 extended-temperature variant for automotive or other harsh-environment qualification.
