PIC16LF1765T-I/ST - 8-Bit XLP MCU 14KB Flash 32MHz 14-TSSOP | Microchip
MPN: PIC16LF1765T-I/ST ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.95 | $1.95 |
| 10 | $1.78 | $17.80 |
| 100 | $1.55 | $155.00 |
| 500 | $1.39 | $695.00 |
| 1,000 | $1.24 | $1,240.00 |
PIC16LF1765T-I/ST Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and programmable peripherals. The PIC16F family uses a RISC-based 8-bit architecture with a 14-bit instruction word, optimized for deterministic interrupt response and low code footprint. Within the broader taxonomy, a microcontroller sits between a digital signal processor (DSP) and a generic microprocessor, trading raw computational throughput for integration, peripheral richness, and very low power consumption.
Key features of the PIC16LF1765T-I/ST include 14 KB Flash, 1 KB RAM, 256 bytes of EEPROM data memory, and a 10-bit ADC with internal channels supporting up to 12 analog inputs depending on package. It also integrates two operational amplifiers, two comparators, and supports PWM, I2C, SPI, and EUSART communications, making it well suited for sensor conditioning and motor control in compact form factors.
Architecturally, the part uses a Harvard-style memory map with separate code and data buses, enabling single-cycle instruction fetch with two-cycle ALU operations at 32 MHz. The XLP technology provides nanoWatt sleep modes with currents as low as the microampere range, enabling years of battery life on coin-cell or two-AAA configurations. The 14-TSSOP package offers a small footprint suitable for high-density PCB designs.
Typical applications include IoT sensor nodes, battery-powered handheld instruments, LED lighting controllers, low-side driver signal conditioning, and consumer appliances that benefit from integrated analog and small-package MCU integration. The wide operating voltage and low quiescent current make it suitable for solar-powered remote sensor applications.
When designing with this part, ensure the supply decoupling follows the manufacturer recommended layout (typically 0.1 µF ceramic close to VDD) and verify the analog supply rail (AVDD) is properly decoupled when the ADC is used. The 14-TSSOP package shares a footprint with several other PIC16F176x variants, allowing pin-compatible scaling across flash sizes. The internal 32 MHz oscillator provides sufficient timing accuracy for UART communications up to standard baud rates without an external crystal.
This page synthesizes distributor pricing, drop-in alternatives, and practical design considerations not consolidated in the manufacturer datasheet, helping engineers compare the PIC16LF1765T-I/ST against same-package peers within the PIC16 family.
Drop-in alternatives for PIC16LF1765T-I/ST — 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/ST (same form factor and footprint) — differing in Package, Operating Temperature, ADC, Program Memory (Flash), Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1765-I/ST
✅ Drop-In✓ In Stock
$0.86 / Unit
View Datasheet →PIC16LF1554-I/ST
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →PIC16LF1574-I/ST
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →PIC16LF1705T-I/ST
✅ Drop-In✓ In Stock
$0.98 / Unit
View Datasheet →PIC16LF1705-I/ST
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16LF1765T-I/ST Maximum Ratings & Electrical Characteristics
| Product Family | PIC16 (8-bit) |
| Core | PIC RISC 8-bit |
| Core Series | PIC16LF176x |
| Program Memory (Flash) | 14 KB (8K x 14) |
| Data RAM | 1 KB |
| EEPROM Data Memory | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| ADC | 10-bit |
| Operating Temperature | -40°C to +85°C (Industrial, "I") |
| Package | 14-pin TSSOP (ST) |
| Mounting Type | Surface Mount |
| I/O Pins | 12 (approx.) |
| Low-Power Feature | XLP (eXtreme Low Power) |
| MSL Level | 1 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
PIC16LF1765T-I/ST Pin Configuration
| Pin 1 | RA0/ICSPDAT — Bidirectional I/O; ICSP data |
| Pin 2 | RA1/ICSPCLK — Bidirectional I/O; ICSP clock |
| Pin 3 | RA2 — Bidirectional I/O; analog input |
| Pin 4 | RA3/MCLR/VPP — I/O; Master Clear reset (active low); programming voltage |
| Pin 5 | RA4 — Bidirectional I/O |
| Pin 6 | RA5 — Bidirectional I/O |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Pin 9 | RB4 — Bidirectional I/O |
| Pin 10 | RB5 — Bidirectional I/O |
| Pin 11 | RB6/ICCK — Bidirectional I/O; ICSP clock |
| Pin 12 | RB7/ICDAT — Bidirectional I/O; ICSP data |
| Pin 13 | VDDCORE — Internal core voltage decoupling |
| Pin 14 | RA7 — Bidirectional I/O |
Typical Applications
PIC16LF1765T-I/ST is suitable for 7 applications: Battery-Powered IoT Sensor Node, LED Lighting Controller, Low-Side Driver Signal Conditioning, Handheld Battery-Powered Instrument, Solar-Powered Remote Sensor, Consumer Appliance Control, Industrial Sensor Transmitter.
Battery-Powered IoT Sensor Node
The PIC16LF1765T-I/ST is well suited for battery-powered IoT sensor nodes because its 1.8-3.6 V operating range matches 2x AA or 3x coin-cell supplies directly, and the integrated 10-bit ADC plus op-amps eliminate the need for external analog front-end components. The XLP nanoWatt sleep modes drop quiescent current into the sub-microampere range between sensor reads, enabling years of battery life on a single 3 V coin cell. The 32 MHz internal oscillator is accurate enough for UART communication without an external crystal, reducing BOM cost. Pin-compatible scaling to PIC16LF1554-I/ST or PIC16LF1705T-I/ST within the same 14-TSSOP footprint allows cost/firmware optimization across SKUs. Recommended companion MPNs: PIC16LF1705T-I/ST (firmware upgrade path) and MCP9808 (high-accuracy temperature sensor for environmental monitoring).
Recommended
LED Lighting Controller
The PIC16LF1765T-I/ST fits LED lighting controllers because its PWM outputs and op-amp analog comparators enable constant-current feedback loops and dimming control without external driver ICs. The 14 KB Flash accommodates color-mixing algorithms and DMX/CCT protocols, while 1 KB RAM is sufficient for LED state buffers. XLP sleep modes extend battery life in portable LED fixtures, and the 1.8-3.6 V VDD range matches single-cell Li-ion directly. The 14-TSSOP package (0.65 mm pitch) supports high-density lighting PCB layouts where space is at a premium. The integrated 10-bit ADC supports ambient light sensing for adaptive brightness. Recommended companion MPNs: MCP16502 (multi-rail DC-DC) and NCP5623 (RGB LED driver).
Recommended
Low-Side Driver Signal Conditioning
The PIC16LF1765T-I/ST is ideal for low-side driver signal conditioning because its integrated op-amps, comparators, and 10-bit ADC form a complete analog front-end on a single die. Engineers can build current-sense amplifiers with the on-chip op-amp, threshold detect with the comparator, and digitize results with the ADC - all within one MCU. The 14 KB Flash is sufficient for sensor calibration tables and PWM drive profiles, while 1 KB RAM supports control loops. XLP low-power modes let the system sleep between events, reducing idle drain on solar or battery supplies. The wide 1.8-3.6 V VDD tolerance covers both 3.3 V and 2.4 V low-side driver topologies. Recommended companion MPNs: MCP9700 (analog temperature sensor) and MCP1700 (3.3V LDO regulator).
Recommended
Handheld Battery-Powered Instrument
The PIC16LF1765T-I/ST suits handheld battery instruments because its XLP technology and 1.8-3.6 V VDD enable multi-year operation from a single 3 V coin cell while delivering 32 MHz processing for measurement routines. The 14 KB Flash stores instrument firmware and calibration constants, and the 256-byte EEPROM persists user settings without external memory. Integrated op-amps amplify sensor signals directly, reducing the analog chain to a single-chip solution. The 14-TSSOP package fits inside compact handheld enclosures with minimal PCB real estate. UART and I2C peripherals enable connection to BLE modules or LCD displays for user interface integration. Recommended companion MPNs: RN4871 (BLE module) and MCP1755 (3.3V LDO).
Recommended
Solar-Powered Remote Sensor
The PIC16LF1765T-I/ST supports solar-powered remote sensor deployments because its nanoWatt sleep modes combined with 1.8-3.6 V VDD tolerate direct Li-ion battery or supercap operation. The internal 32 MHz oscillator eliminates external crystals, reducing BOM and assembly cost for outdoor enclosures. Integrated op-amps condition bridge sensor outputs (load cells, strain gauges) without external amplifiers. The 14 KB Flash supports LoRaWAN or Sigfox protocol stacks for low-power wide-area network (LPWAN) connectivity. XLP wake-from-RTCC modes let the MCU sleep for minutes between transmissions, harvesting minimal solar energy. Recommended companion MPNs: RN2903 (LoRaWAN module) and MCP1640 (boost converter for solar harvesting).
Recommended
Consumer Appliance Control
The PIC16LF1765T-I/ST fits consumer appliance control boards because its integrated op-amps, comparators, and 10-bit ADC support direct sensor interfacing (temperature, humidity, current) without external analog components. The 14 KB Flash covers appliance firmware with user-interface handling, while 1 KB RAM supports menu buffers. PWM outputs drive motor speed or valve control via low-side switches. The 14-TSSOP SMD package supports high-volume automated assembly. XLP modes reduce standby power to comply with energy-efficiency regulations (Energy Star, EU EcoDesign). UART/SPI peripherals enable display and keypad communication. Recommended companion MPNs: MCP1700 (3.3V LDO) and AT24C32 (I2C EEPROM for user settings).
Recommended
Industrial Sensor Transmitter
The PIC16LF1765T-I/ST is appropriate for industrial 4-20 mA sensor transmitters because its 10-bit ADC and integrated op-amps provide signal conditioning for bridge-type sensors in a compact 14-TSSOP footprint. The wide 1.8-3.6 V VDD is compatible with loop-powered 4-20 mA designs after a small LDO. Industrial -40°C to +85°C operating range meets factory-floor requirements. UART/SPI peripherals enable HART or Modbus communication protocols. XLP sleep modes minimize loop current draw when not transmitting, staying within 3.6 mA HART budget. The 14 KB Flash accommodates protocol stacks and linearization tables. Recommended companion MPNs: MCP1700 (low-Iq LDO) and XTR115 (4-20 mA current loop transmitter).
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1765T-I/ST — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1765-I/ST | PIC16LF1554-I/ST | PIC16LF1574-I/ST | PIC16LF1705T-I/ST |
|---|---|---|---|---|---|
| Package | 14-TSSOP (ST) | 14-TSSOP (ST) | 14-TSSOP (ST) | 14-TSSOP (ST) | 14-TSSOP (ST) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 14 KB | 14 KB | 7 KB | 7 KB | 14 KB |
| RAM | 1 KB | 1 KB | 512 B | 512 B | 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 |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Op-Amps (integrated) | Yes (2) | Yes (2) | No | No | No |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| XLP Low Power | Yes | Yes | Yes | Yes | Yes |
| Tape & Reel Suffix | Yes (-T suffix) | No (tube) | No (tube) | No (tube) | Yes (-T suffix) |
Key Differentiators
- Integrated op-amps and comparators (vs PIC16LF1554-I/ST)
- Same-package with T&R packaging for SMT (vs PIC16LF1765-I/ST)
- EEPROM data memory for parameter storage (vs PIC16LF1705T-I/ST)
Design Notes
Place a 0.1 µF ceramic decoupling capacitor as close as possible to the VDD pin (pin 8) and a 10 µF bulk capacitor near the MCU. Per the Microchip PIC16LF176x datasheet, an additional 0.1 µF should be placed near VDDCORE (pin 13) to stabilize the internal regulator. For battery applications, verify the chosen battery chemistry (Li-ion, alkaline, coin cell) can supply peak current during ADC conversion (typically < 5 mA peak). Use a Schottky diode on VDD for reverse-polarity protection in industrial environments.
The 14-TSSOP package has a 0.65 mm pin pitch requiring fine-pitch SMT assembly. Follow IPC-7351 land pattern guidelines with solder mask defined (SMD) pads for best solder joint reliability. Keep analog traces (ADC inputs, op-amp inputs) short and away from digital switching traces (PWM, oscillator). Place a ground pour on the top layer stitched with vias to bottom ground for return-current paths. Avoid routing high-current traces under the MCU package.
Do not leave the MCLR pin (pin 4) floating; tie it to VDD through a 10 kΩ resistor for normal operation, or leave it disconnected only if unused but with the MCLR disabled in configuration words. The ICSPDAT/ICSPCLK pins (RA0/RA1) must be accessible for in-circuit serial programming (ICSP) - do not place series resistors that exceed 4.7 kΩ on these lines. When migrating from PIC16LF1765-I/ST to PIC16LF1765T-I/ST, only the shipping carrier changes (tube vs tape-and-reel); firmware and pinout are identical.
For ADC accuracy, drive analog inputs through a low-impedance source (< 10 kΩ) or add an external buffer. The internal ADC acquisition time is specified as 1.0 µs minimum at 32 MHz. When using the internal op-amps for signal conditioning, route the feedback network close to the op-amp pins to minimize parasitic capacitance. For UART communications at high baud rates (> 115200), use the internal oscillator's calibration register or add an external crystal for frequency stability.
Compliance Information
RoHS and REACH compliant per Microchip product environmental certifications; lead-free (Pb-free) reflow profile per JEDEC J-STD-020; MSL Level 1 rated. Not AEC-Q100 qualified - for automotive, use PIC16F equivalent with automotive grade marking.
