PIC16F1765-I/SL - 8-bit MCU, 14KB Flash, 32MHz, 14-SOIC | Microchip
MPN: PIC16F1765-I/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.5 | $2.50 |
| 10 | $2.27 | $22.70 |
| 100 | $2.03 | $203.00 |
| 500 | $1.79 | $895.00 |
| 1,000 | $1.55 | $1,550.00 |
PIC16F1765-I/SL Overview
A microcontroller (MCU) is a single-chip computer containing a processor core, program and data memory, and integrated peripherals such as ADC, DAC, timers, and communication interfaces. The PIC16F1765 belongs to the broader 8-bit MCU category, which sits within the integrated circuit hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. Despite its small 14-pin SOIC footprint, the PIC16F1765 provides analog integration comparable to devices in much larger packages, allowing designers to replace multiple discrete components with a single IC.
The PIC16F1765 integrates four 10-bit DACs, op-amps, comparators and a high-resolution PWM engine for closed-loop analog control. XLP technology enables active currents measured in microamperes and deep sleep currents in the nanoampere range, making the device suitable for battery-powered applications that demand years of service life. The 32 MHz internal oscillator eliminates the need for an external crystal in many designs.
Typical applications include LED lighting drivers, switched-mode power supplies, battery chargers, motor control loops, sensor signal conditioning, and low-power IoT edge nodes. The combination of intelligent analog peripherals and low-power sleep modes supports designs that previously required multiple ICs.
When designing with this part, evaluate whether the 14-pin SOIC package has sufficient I/O for your application - larger PIC16F1768/1769 variants exist with the same peripheral set in 20- and 28-pin packages. Ensure the configuration words match your chosen clock, watchdog, brown-out and code-protect settings before programming production firmware. According to Microchip's family datasheet, a decoupling capacitor of 0.1 uF placed within 4 mm of VDD is recommended.
Drop-in alternatives for PIC16F1765-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 PIC16F1765-I/SL (same form factor and footprint) — differing in Package, ADC, Operating Temperature, Program Memory (Flash), Core.
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View Datasheet →PIC16F1765-I/SL Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit Microcontroller (MCU) |
| Core Architecture | PIC16 (Enhanced Mid-Range) |
| CPU Bit Width | 8-bit |
| Maximum CPU Speed | 32 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data SRAM | 1 KB |
| ADC | 10-bit |
| DAC | 5-bit and 10-bit |
| Package | 14-SOIC (SL), 3.90 mm body width |
| Operating Temperature | -40C to +85C (Industrial, "I") |
| Mounting Type | Surface Mount |
| MSL Level | 1 |
| RoHS Status | Compliant |
| Low-Power Technology | XLP (eXtreme Low Power) |
PIC16F1765-I/SL Pin Configuration
| Pin 1 | RA3/AN3/Vref+/C1IN+/T1G — Bidirectional I/O, analog input, voltage reference, comparator input, timer1 gate |
| Pin 2 | RA4/AN4/T1G — Bidirectional I/O, analog input, timer1 gate |
| Pin 3 | RA5/MCLR/Vpp — Bidirectional I/O, Master Clear (reset) input, programming voltage |
| Pin 4 | RA6/OSC2/CLKO — Bidirectional I/O, oscillator output, clock output |
| Pin 5 | RA7/OSC1/CLKI — Bidirectional I/O, oscillator input, clock input |
| Pin 6 | VSS — Ground reference |
| Pin 7 | RA0/AN0/C1IN0-/DAC1OUT — Bidirectional I/O, analog input, comparator input, DAC1 output |
| Pin 8 | RA1/AN1/C1IN1-/DAC2OUT — Bidirectional I/O, analog input, comparator input, DAC2 output |
| Pin 9 | RA2/AN2/DAC3OUT — Bidirectional I/O, analog input, DAC3 output |
| Pin 10 | RC0/SOSCO — Bidirectional I/O, secondary oscillator output |
| Pin 11 | RC1/SOSCI — Bidirectional I/O, secondary oscillator input |
| Pin 12 | RC2/AN6/DAC4OUT — Bidirectional I/O, analog input, DAC4 output |
| Pin 13 | RC3/AN7 — Bidirectional I/O, analog input |
| Pin 14 | VDD — Positive supply voltage |
Typical Applications
PIC16F1765-I/SL is suitable for 6 applications: LED Lighting Drivers, Switched-Mode Power Supplies (SMPS), Battery Chargers, Sensor Signal Conditioning, Motor Control Loops, Low-Power IoT Edge Nodes.
LED Lighting Drivers
The PIC16F1765-I/SL is well matched to LED lighting drivers because it integrates 10-bit DAC, op-amps and switch-mode control peripherals in a single 14-SOIC package, enabling closed-loop constant-current control of LED strings without external analog ICs. The PIC16F176X family datasheet cites LED drivers as a primary application. XLP low-power technology keeps standby consumption in the nanoampere range, which is critical for always-on lighting controls. A typical implementation uses the op-amp to sense shunt-resistor current, the 10-bit DAC to set the reference and the PWM module to drive the switching transistor. The 32 MHz CPU provides enough bandwidth for digital compensator loops while the 14 KB Flash accommodates reference lookup tables.
Recommended
Switched-Mode Power Supplies (SMPS)
The PIC16F1765-I/SL is suitable for low-power SMPS controllers where the integrated op-amp, comparators and high-resolution PWM eliminate external analog components. The PIC16F176X family datasheet documents dedicated switch-mode control peripherals including current-mode control logic and programmable dead-time. A 32 MHz CPU executes the digital compensation loop, while XLP sleep modes reduce quiescent current during light-load operation. The 14-SOIC package fits inside compact adapter enclosures. Designers commonly pair it with a gate driver such as the MCP14700 or a discrete MOSFET on the secondary side.
Recommended
Battery Chargers
Battery charger designs benefit from the PIC16F1765-I/SL's integrated 10-bit ADC for voltage and current measurement, plus the 10-bit DAC for programmable reference levels. The PIC16F176X datasheet highlights Li-ion and NiMH charge profiles as supported use cases. The op-amp can amplify a low-side current-sense signal while the zero-cross detect peripheral enables AC-line-synchronized timing in wireless-charging topologies. XLP sleep currents below 1 uA allow years of shelf life on a primary cell, and the 14-SOIC package keeps total BOM small. The 32 MHz CPU supports CC-CV algorithm execution with state-machine firmware.
Recommended
Sensor Signal Conditioning
The PIC16F1765-I/SL fits sensor-signal-conditioning front ends where the integrated op-amp, 10-bit ADC and 10-bit DAC remove the need for external analog chains. Thermistor, RTD and bridge-sensor inputs can be amplified by the on-chip op-amp, digitized by the ADC and linearized by firmware running at 32 MHz. The XLP sleep mode allows battery-powered wireless sensor nodes to wake periodically and transmit readings. The 14-SOIC package is small enough for in-line sensor probes and the 14 KB Flash holds calibration tables for multiple sensor types.
Recommended
Motor Control Loops
Small brushed DC motor and stepper motor control loops are within reach of the PIC16F1765-I/SL when using its integrated op-amp for current sensing and PWM module for speed/torque actuation. The PIC16F176X family datasheet documents motor control as a typical application with hardware zero-cross detect support for back-EMF commutation in BLDC designs. The 32 MHz CPU executes PI control loops with sub-microsecond period, and the 14 KB Flash holds commutation tables. The 14-SOIC package suits compact fan, pump and small-appliance motor boards.
Recommended
Low-Power IoT Edge Nodes
The PIC16F1765-I/SL is appropriate for low-power IoT edge nodes where XLP technology delivers nanoampere sleep currents that enable multi-year coin-cell operation. The integrated 10-bit ADC reads sensor data while the 32 MHz core runs short processing tasks before returning to sleep. The 14 KB Flash accommodates lightweight LoRaWAN or sub-GHz protocol stacks plus application logic. Pairing with an external sub-GHz transceiver such as the Microchip MRF89XA keeps the bill of materials small while leaving headroom for over-the-air firmware updates in the 1 KB SRAM.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1765-I/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1765-I/P | PIC16F1764-I/SL | PIC16F1704-I/SL | PIC16F1575-I/SL | PIC16F15225-I/SL | PIC16F1615-I/SL |
|---|---|---|---|---|---|---|---|
| Package | 14-SOIC (SL) | 14-PDIP (P) | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Maximum Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| XLP Low-Power | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Five integrated 10-bit DAC channels in 14-SOIC (vs PIC16F1704-I/SL)
- 14 KB Flash in the smallest SOIC of the family (vs PIC16F1704-I/SL)
- Dedicated switch-mode control peripherals (vs PIC16F1575-I/SL)
Design Notes
Place a 0.1 uF decoupling capacitor within 4 mm of the VDD pin (pin 14) and a bulk capacitor of at least 1 uF on the same node. According to the Microchip PIC16F176X family datasheet, inadequate decoupling on VDD can cause code-execution errors during high-current switching events. For battery-powered designs, add a 10 uF bulk reservoir to handle transient switching loads on adjacent analog peripherals.
Do not leave MCLR floating. The PIC16F1765-I/SL requires MCLR (pin 3) tied to VDD through a 10 kohm resistor for normal operation, or tied directly to VDD if the reset function is unused. Floating MCLR is the most common cause of intermittent start-up failures. Disable MCLR in the configuration words only when the application truly does not require external reset.
Route the analog signals (RA0-RA2, RC2-RC3) away from high-current switching traces such as PWM outputs. The PIC16F1765-I/SL's integrated ADC achieves better than 10 ENOB only when digital and analog ground returns are kept separate and joined at a single point near VSS (pin 6). Use a ground pour on the top layer beneath the SOIC package to provide thermal dissipation; without it, theta_JA rises and the device derates at high ambient temperatures.
Estimated: at 32 MHz FOSC, the internal clock has a 4 MHz instruction-cycle rate. Long PCB traces on OSC1/OSC2 will introduce reflections; keep the crystal or resonator within 5 mm of pins 4 and 5. When using the internal 32 MHz HFINTOSC, leave OSC1/OSC2 as standard GPIO to free two I/O pins but expect higher jitter than with a crystal reference.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - select automotive-grade "E" or "-VAO" variants if required for automotive applications. Halogen-free status not explicitly stated in provided data.
