PIC16LF1765T-I/SL - 8-Bit XLP MCU, 14KB Flash, 14-SOIC | Microchip
MPN: PIC16LF1765T-I/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.95 | $1.95 |
| 10 | $1.75 | $17.50 |
| 100 | $1.55 | $155.00 |
| 500 | $1.35 | $675.00 |
| 1,000 | $1.2 | $1,200.00 |
PIC16LF1765T-I/SL Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (typically Flash), working RAM, and a configurable set of peripherals such as timers, ADCs, communication interfaces, and general-purpose I/O. The PIC16F176X family is positioned in Microchip's mid-range 8-bit portfolio and is purpose-built for intelligent analog integration: each device combines a 10-bit ADC, op-amps, comparators, and Digital-to-Analog Converters (DACs) on-chip, enabling designers to replace external analog components with firmware-configurable on-chip resources. Within the PIC taxonomy, PIC16LF1765 belongs to the eXtreme Low Power (XLP) group and the 14/20-pin mid-range 8-bit sub-family.
Key features of the PIC16LF1765 include a 32 MHz internal oscillator, 12 I/O pins, on-chip 10-bit ADC, multiple DAC and op-amp peripherals, support for mTouch capacitive sensing, and Microchip's nanoWatt XLP sleep currents typically in the nanoamp range. The 14-pin SOIC package provides a compact footprint with excellent thermal performance for hand-held and industrial modules.
The 'LF' process variant operates across 1.8 V to 3.6 V, supporting single-cell lithium or two-cell alkaline chemistries directly. Internal peripherals are routed through Microchip's Peripheral Pin Select (PPS) framework, simplifying PCB layout by remapping digital functions to physical pins in firmware. Watchdog timer, brown-out reset, and in-circuit serial programming (ICSP) are standard.
Typical applications include low-power sensor nodes, IoT edge devices, battery-powered metering, LED lighting controllers, capacitive-touch human-machine interfaces, and consumer appliances. Designers choose this part when on-chip analog integration and sub-microamp sleep currents are needed alongside a familiar 8-bit PIC toolchain (MPLAB X IDE + XC8 compiler).
When designing with the PIC16LF1765, ensure that the chosen regulator (such as the MCP1700 or MCP1703 LDO) provides a stable rail within the 1.8 V to 3.6 V window with adequate headroom for transients. Decouple VDD with a 100 nF ceramic capacitor placed within a few millimeters of the IC, and route the ICSP clock and data signals so they can reach the programming header without crossing noisy power traces.
This page synthesizes distributor stock, tape-and-reel pricing tiers, pin-compatible same-family alternatives, and practical design notes drawn from Microchip's PIC16F176X datasheet and application notes - information not found in the bare datasheet PDF alone.
Drop-in alternatives for PIC16LF1765T-I/SL — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC16LF1765T-I/SL (same form factor and footprint) — differing in ADC, Package, Program Memory (Flash), Operating Temperature, Data SRAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesPIC16LF1765T-I/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC mid-range |
| Series | PIC® XLP™ 16F |
| CPU Speed (max) | 32 MHz |
| Program Memory (Flash) | 14 KB (8K x 14) |
| RAM | 1 KB |
| EEPROM | 128 bytes |
| Operating Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 12 |
| ADC | 10-bit, on-chip |
| Package | 14-SOIC (SL) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C (Industrial, 'I' suffix) |
| Low-Power Feature | nanoWatt XLP |
| Packaging | Tape & Reel ('T' suffix) |
| RoHS Status | Compliant |
PIC16LF1765T-I/SL Pin Configuration
| Pin 1 | RA3/AN3/MCLR — Bidirectional I/O, analog input 3, Master Clear (reset) input |
| Pin 2 | RA0/AN0 — Bidirectional I/O, analog input 0 |
| Pin 3 | RA1/AN1 — Bidirectional I/O, analog input 1 |
| Pin 4 | RA2/AN2 — Bidirectional I/O, analog input 2 |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RC0 — Bidirectional I/O port C, PPS-mappable |
| Pin 7 | RC1 — Bidirectional I/O port C, PPS-mappable |
| Pin 8 | RC2 — Bidirectional I/O port C, PPS-mappable |
| Pin 9 | RC3 — Bidirectional I/O port C, PPS-mappable |
| Pin 10 | RC4 — Bidirectional I/O port C, PPS-mappable |
| Pin 11 | RC5 — Bidirectional I/O port C, PPS-mappable |
| Pin 12 | RA4/AN4 — Bidirectional I/O, analog input 4 |
| Pin 13 | RA5/AN5 — Bidirectional I/O, analog input 5 |
| Pin 14 | VDD — Positive supply input (1.8 V to 3.6 V) |
Typical Applications
PIC16LF1765T-I/SL is suitable for 6 applications: Battery-Powered IoT Sensor Node, Capacitive-Touch User Interface, LED Lighting Controller, Industrial Sensor Transmitter, Consumer Appliance Controller, Portable Health Monitoring Device.
Battery-Powered IoT Sensor Node
The PIC16LF1765's 1.8 V to 3.6 V operation and nanoWatt XLP sleep currents below 50 nA typical make it ideal for coin-cell or 2x AA powered IoT sensor nodes. The on-chip 10-bit ADC and integrated op-amps let the firmware digitize thermistor, photocell, or gas-sensor signals without external analog ICs. Designers can place the MCU into Sleep between samples and wake on a timer or sensor interrupt, with 14 KB Flash accommodating 8-/16-bit protocol stacks such as Modbus RTU or a custom sub-GHz driver.
Recommended
Capacitive-Touch User Interface
The PIC16LF1765 integrates Microchip's mTouch capacitive-sensing hardware with on-chip op-amps, enabling button, slider, and wheel interfaces without dedicated touch ICs. With 12 I/O available and Peripheral Pin Select remapping, the firmware can drive an 8-button keypad plus a proximity sensor from a single MCU. The 14 KB Flash accommodates Microchip's mTouch libraries and a state-machine user-interface layer while the LF process keeps sleep current low enough for weeks of standby on a coin cell.
Recommended
LED Lighting Controller
The PIC16LF1765's on-chip 10-bit ADC, multiple DACs, and PWM modules make it ideal for constant-current LED drivers and RGB color-mixing controllers. The MCU can sample a photodiode for ambient feedback, drive three MOSFET gates via PWM for RGB tuning, and run a smooth color-mixing algorithm in firmware using its 1 KB of RAM. Wide-voltage LF operation directly supports 12 V or 24 V LED strips with a simple linear regulator, while 32 MHz CPU speed enables flicker-free PWM at 20 kHz without software overhead.
Recommended
Industrial Sensor Transmitter
The PIC16LF1765's industrial -40 C to +85 C temperature rating, 14 KB Flash, and on-chip analog peripherals make it a strong choice for 4-20 mA sensor transmitters and small PLC-style analog modules. The 10-bit ADC plus integrated op-amps can directly condition a bridge sensor or RTD signal, and the LF process supports loop-powered operation from 24 V industrial rails with a low-dropout regulator. The 14-SOIC package is easy to hand-prototype, and ICSP allows field firmware updates.
Recommended
Consumer Appliance Controller
Consumer appliances such as coffee makers, blenders, and small kitchen electronics benefit from the PIC16LF1765's integrated op-amps, comparators, and zero-cross detection support. The 14 KB Flash can hold a full state machine plus user-interface logic, and the LF process supports direct Li-Ion battery operation for cordless devices. Watchdog timer and brown-out reset provide the robustness required by consumer safety standards, while the small SOIC-14 footprint keeps the BOM compact for cost-sensitive SKUs.
Recommended
Portable Health Monitoring Device
The PIC16LF1765's low power, on-chip ADC, and small SOIC-14 package make it a fit for portable personal-health peripherals such as pulse-oximeter front-ends, fitness bands, and thermometers. The LF variant's 1.8 V minimum supply lets the firmware run directly from a single Li-Ion cell with a small buck-boost or LDO, and the 32 MHz CPU executes small DSP-style filters for heart-rate or temperature smoothing in real time. Sleep current below 50 nA preserves weeks of shelf-life on coin-cell powered wearables.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1765T-I/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1765-I/SL | PIC16LF1764-I/SL | PIC16LF1704-I/SL | PIC16LF1575T-I/SL | PIC16LF1455-I/SL |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC (SL) | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same |
| Flash Memory | 14 KB | 14 KB | 7 KB | 7 KB | 14 KB | 14 KB |
| RAM | 1 KB | 1 KB | 512 B | 512 B | 1 KB | 1 KB |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| USB Peripheral | No | No | No | No | No | Yes (USB 2.0 FS) |
Key Differentiators
- Largest Flash in the 14-pin PIC16F1764/5 family (vs PIC16LF1764-I/SL)
- On-chip intelligent analog integration (vs PIC16LF1455-I/SL)
- Tape & Reel factory packaging (vs PIC16LF1765-I/SL)
Design Notes
Power the PIC16LF1765 from a low-quiescent LDO such as the MCP1700 (1.6 uA Iq typical) to maximize battery life. Place a 100 nF decoupling capacitor within 5 mm of the VDD pin and add a bulk capacitor (1 uF to 10 uF ceramic) on the rail to handle ADC reference transients. Ensure VDD stays within 1.8 V to 3.6 V at all loads, including the brown-out threshold.
Route the ICSPDAT and ICSPCLK signals to a programming header with no series resistors, keeping them on the same layer as the MCU. Place the MCLR pull-up (typically 10 kohm to VDD) close to the MCU; do not share MCLR with other loads. Keep analog traces (sensor inputs) short and away from PWM-driven traces to avoid coupled noise on the ADC input.
Do not assume the 'LF' variant can run at 5 V; the LF process tops out at 3.6 V and will be damaged above the abs-max of 4.0 V. Always enable the Brown-Out Reset (BOR) fuse for battery-powered designs to avoid undefined execution when VDD sags below 1.8 V. When migrating from the PIC16F1765 (5V), check op-amp and ADC input range - the LF part will clip at lower common-mode voltages.
When using the on-chip ADC for millivolt-level sensor signals, enable the integrated op-amp in buffer mode to drive the ADC input and add a 100 nF capacitor at the ADC pin to filter high-frequency noise. Set the ADC clock period to at least 1 us per bit (Fosc/32 or slower) for 10-bit accuracy. Use Microchip's mTouch noise-suppression routines for capacitive-sensing designs near switching power supplies.
Compliance Information
RoHS and REACH compliance per Microchip product page; not AEC-Q100 qualified (industrial grade only). Halogen-free per Microchip's standard PIC16 packaging declarations.
