PIC16LF1764-I/ML - 8-bit MCU, 7KB Flash, 32MHz | Microchip
MPN: PIC16LF1764-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.97 | $0.97 |
| 10 | $0.88 | $8.80 |
| 100 | $0.78 | $78.00 |
| 500 | $0.69 | $345.00 |
| 1,000 | $0.61 | $610.00 |
| 3,000 | $0.54 | $1,620.00 |
PIC16LF1764-I/ML Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and programmable peripherals onto one IC. The 8-bit PIC16 family targets low-power, deterministic embedded applications. XLP™ (eXtreme Low Power) is Microchip's branded ultra-low-power technology for battery-operated designs, reducing sleep current below 50 nA in many variants. The PIC16(L)F1764/5/8/9 family specifically combines intelligent analog integration with digital peripherals to suit a variety of closed-loop and sensing applications.
Key features include 7KB of self-programmable FLASH, 512B RAM, 10-bit ADC with up to 8 channels, two operational amplifiers, zero-cross detect, high-current sink/source I/O, and programmable logic cells. The 32MHz internal oscillator provides ample clock speed for sensor signal conditioning, while nanoWatt XLP technology extends battery life in standby applications.
The architecture follows a Harvard RISC design with a single accumulator and 49 instructions, optimized for C and assembly code efficiency. The device supports In-Circuit Serial Programming (ICSP), operates from 1.8V to 3.6V (LF variant), and includes a 32kHz low-power oscillator plus a 32MHz high-speed oscillator. The integrated op amps allow direct interfacing with sensors without external analog components.
Typical applications include LED lighting control, battery-powered sensor nodes, closed-loop fan control, motor drive companion ICs, and IoT endpoint devices. Designers value this part for its combination of analog integration and nanoWatt sleep modes in compact 16-pin QFN.
When designing with this device, place a 0.1µF decoupling capacitor within 2mm of the VDD pin and consider the exposed pad thermal dissipation. The 16-QFN (4x4) footprint suits compact PCBs but requires careful solder stencil design for reliable reflow.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16LF1764-I/ML — 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 PIC16LF1764-I/ML (same form factor and footprint) — differing in Package, ADC, Core Architecture, Operating Temperature, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1765-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1769-I/ML
✅ Drop-In✓ In Stock
$1.65 / Unit
View Datasheet →PIC16LF1704-I/ML
✅ Drop-In✓ In Stock
$0.71 / Unit
View Datasheet →PIC16LF1705-I/ML
✅ Drop-In✓ In Stock
$0.54 / Unit
View Datasheet →PIC16LF1619-I/ML
✅ Drop-In✓ In Stock
$1.32 / Unit
View Datasheet →PIC16LF1764-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC |
| Family | PIC® XLP™ 16F |
| CPU Speed | 32 MHz |
| Program Memory | 7 KB (4K x 14) FLASH |
| RAM | 512 B |
| ADC | 10-bit |
| Operating Voltage (LF) | 1.8 V to 3.6 V |
| Package | 16-QFN (4x4 mm) with Exposed Pad |
| Mounting Type | Surface Mount |
| Pin Count | 16 |
| Operating Temperature | -40°C to +85°C (Industrial) |
| Low-Power Technology | nanoWatt XLP™ |
| RoHS Status | Compliant |
| MSL Level | 1 |
PIC16LF1764-I/ML Pin Configuration
| Pin 1 | RA0/AN0 — I/O port A bit 0 / Analog channel 0 |
| Pin 2 | RA1/AN1 — I/O port A bit 1 / Analog channel 1 |
| Pin 3 | RA2/AN2 — I/O port A bit 2 / Analog channel 2 |
| Pin 4 | RA3/AN3 — I/O port A bit 3 / Analog channel 3 |
| Pin 5 | RA4/AN4 — I/O port A bit 4 / Analog channel 4 |
| Pin 6 | RA5/AN5 — I/O port A bit 5 / Analog channel 5 |
| Pin 7 | VDD — Positive supply voltage (1.8V-3.6V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RB4/AN6 — I/O port B bit 4 / Analog channel 6 |
| Pin 10 | RB5/AN7 — I/O port B bit 5 / Analog channel 7 |
| Pin 11 | RB6/ICSPCLK — I/O port B bit 6 / ICSP clock |
| Pin 12 | RB7/ICSPDAT — I/O port B bit 7 / ICSP data |
| Pin 13 | RC0 — I/O port C bit 0 |
| Pin 14 | RC1 — I/O port C bit 1 |
| Pin 15 | RC2 — I/O port C bit 2 |
| Pin 16 | RC3 — I/O port C bit 3 |
| Pin 17 | EP — Exposed Pad - thermal/ground, must be soldered to PCB |
Typical Applications
PIC16LF1764-I/ML is suitable for 7 applications: LED Lighting Control, Battery-Powered IoT Sensor Node, Closed-Loop Fan Speed Control, Motor Drive Companion IC, Industrial Process Control, Wearable Health Monitoring, Smart Home Sensor Hub.
LED Lighting Control
The PIC16LF1764-I/ML suits LED lighting controllers thanks to its integrated 10-bit ADC, two on-chip operational amplifiers, and zero-cross detect peripherals that simplify closed-loop current regulation. In a typical constant-current LED driver, the op amp senses shunt voltage across a sense resistor while the zero-cross detect pin synchronizes PWM dimming to AC line frequency. The 32MHz CPU handles PID control for current regulation while the nanoWalt XLP sleep modes reduce standby power when the lamp is off. Operating from 1.8V to 3.6V makes the part compatible with battery-backed emergency LED modules. Companion parts include LED drivers like the HV9910 and optocouplers for AC line isolation.
Recommended
Battery-Powered IoT Sensor Node
The PIC16LF1764-I/ML is engineered for coin-cell battery IoT sensor nodes thanks to nanoWalt XLP technology delivering sleep currents below 50nA. The 32MHz core processes sensor data, transmits results, then returns to deep sleep. The 1.8-3.6V supply range suits direct coin-cell (CR2032) operation without boost converters. With 7KB FLASH the device accommodates custom firmware for sensor fusion algorithms while 512B RAM handles small data buffers. The 16-QFN (4x4mm) footprint fits miniaturized wearable form factors. Companion sensors include the BMP280 for environmental monitoring and the LIS3DHTR for accelerometer readings.
Recommended
Closed-Loop Fan Speed Control
The PIC16LF1764-I/ML drives closed-loop fan speed controllers by combining its integrated op amps for tachometer feedback amplification with zero-cross detect for AC mains synchronization. The 32MHz clock provides ample computation for PID speed regulation loops, while the 10-bit ADC samples tachometer pulses for RPM calculation. Operating from 1.8-3.6V allows a single 3.3V regulator topology. The 16-QFN package with exposed pad dissipates heat reliably during continuous operation. Companion parts include triac drivers such as the MOC3021 and tachometer conditioning circuitry.
Recommended
Motor Drive Companion IC
The PIC16LF1764-I/ML serves as a companion controller for BLDC and stepper motor systems, leveraging its zero-cross detect and integrated op amps for back-EMF sensing. The 32MHz core executes field-oriented control firmware while 7KB FLASH accommodates proprietary motor profiles. The 1.8-3.6V operation supports direct 3.3V regulation from the main motor supply. The 16-QFN (4x4mm) package allows placement near the power-stage for short analog feedback traces. Companion parts include gate drivers such as the DRV8313 and current-sense amplifiers for motor feedback paths.
Recommended
Industrial Process Control
The PIC16LF1764-I/ML supports industrial process loops requiring on-chip analog conditioning through its two operational amplifiers and 10-bit ADC. The 32MHz processing handles PID calculations while the zero-cross detect synchronizes with 50/60Hz line signals for TRIAC-based heater control. The industrial -40°C to +85°C temperature rating suits factory floor deployment. The 16-QFN package withstands typical industrial PCB assembly reflow profiles per JEDEC J-STD-020. Companion parts include the AD623 instrumentation amplifier and ISO124 isolation amplifiers for safe high-voltage interfacing.
Recommended
Wearable Health Monitoring
The PIC16LF1764-I/ML fits wearable health monitors thanks to its nanoWalt XLP sleep current below 50nA that extends coin-cell life. The 32MHz core runs signal-processing algorithms for heart-rate or pulse-oximetry while the integrated op amps condition biopotential electrodes directly without external analog front-ends. The 1.8-3.6V operation suits direct Li-ion battery usage. The compact 16-QFN (4x4mm) package fits wrist-worn form factors. Companion parts include the MAX30102 optical sensor module and BLE modules like the RN4870 for wireless data transmission.
Recommended
Smart Home Sensor Hub
The PIC16LF1764-I/ML integrates smart-home endpoint devices by handling multiple analog sensors through its ADC and two op amps. The 32MHz core runs mesh-network protocols like Zigbee or Thread stacks while 7KB FLASH supports application firmware. The nanoWalt XLP sleep modes extend battery life in door/window sensors. The 16-QFN package fits compact PCBAs inside small enclosures. Companion parts include the CC2530 Zigbee transceiver and the BME280 environmental sensor.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1764-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1765-I/ML | PIC16LF1769-I/ML | PIC16LF1704-I/ML | PIC16LF1705-I/ML | PIC16LF1619-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 16-QFN (4x4 mm) | 16-QFN (4x4 mm) - same | 16-QFN (4x4 mm) - same | 16-QFN (4x4 mm) - same | 16-QFN (4x4 mm) - same | 16-QFN (4x4 mm) - same |
| Core | PIC 8-bit, 32MHz | PIC 8-bit, 32MHz | PIC 8-bit, 32MHz | PIC 8-bit, 32MHz | PIC 8-bit, 32MHz | PIC 8-bit, 32MHz |
| FLASH | 7 KB | 14 KB | 14 KB | 7 KB | 7 KB | 8 KB |
| RAM | 512 B | 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 | 1.8 V to 3.6 V |
| Integrated Op Amps | 2 | 2 | 2 | 0 | 0 | 0 |
| Zero-Cross Detect | Yes | Yes | Yes | No | No | No |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
Key Differentiators
- Integrated operational amplifiers reduce BOM (vs PIC16LF1704-I/ML)
- Zero-cross detect for AC line synchronization (vs PIC16LF1619-I/ML)
- Larger memory headroom than closest drop-in (vs PIC16LF1704-I/ML)
Design Notes
Place a 0.1µF ceramic decoupling capacitor within 2mm of the VDD pin (pin 7) and a 10µF bulk capacitor near the IC. The 16-QFN (4x4mm) exposed pad must be soldered to a ground copper pour with thermal vias to provide both electrical ground and thermal dissipation. Inadequate exposed pad soldering can raise junction temperature by 15-20°C above rated operation.
The PIC16LF1764-I/ML operates from 1.8V to 3.6V on VDD. The LF variant is mandatory for sub-2V operation; do NOT substitute the PIC16F1764 (2.3-5.5V) when designing 1.8V systems. For battery applications, configure the internal 32kHz LFINTOSC for Sleep mode and gate peripherals not in use to achieve nanoWalt XLP current below 50nA per the Microchip datasheet.
The ICSP clock and data lines (RB6/RB7) double as GPIO; ensure firmware correctly disables the ICSP module via CONFIG words before using these pins as outputs, otherwise ICSP contention can occur during programming. The integrated op amps require explicit configuration through the OPAxCON registers; failing to configure them leaves inputs floating and increases quiescent current.
Estimated: At 32MHz, 3.3V supply, and 8mA active CPU current, total power dissipation is approximately 26mW. The 16-QFN thermal resistance (θJA) of approximately 39°C/W yields a junction temperature rise of ~1°C above ambient. No external heatsink is required for normal operation, but the exposed pad must be soldered for the rated thermal performance.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; not recommended for automotive safety-critical applications. Industrial temperature range -40°C to +85°C.
