PIC16LF1765-E/SL - 8-Bit 32MHz 14KB Flash MCU | Microchip
MPN: PIC16LF1765-E/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.65 | $1.65 |
| 10 | $1.48 | $14.80 |
| 100 | $1.32 | $132.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $1.05 | $1,050.00 |
PIC16LF1765-E/SL Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), working memory (RAM), and integrated peripherals such as ADC, timers, and communication interfaces. The PIC16(L)F176x family is Microchip's 8-bit mid-range line targeted at low-power, cost-sensitive applications. Within the broader semiconductor taxonomy, an MCU sits inside the integrated-circuit hierarchy: microcontroller -> microprocessor -> semiconductor device, and is the core building block of any embedded electronic system.
Key features of the PIC16LF1765 include 14KB (8K × 14) Flash program memory, 1KB RAM, 256 bytes EEPROM, 10-bit ADC with multiple channels, op-amp peripherals, zero-cross detect, high-current I/O pins, and the eXtreme Low Power (XLP) sleep mode that draws nano-amp-class standby current. The LF prefix indicates a wide-voltage-range silicon (1.8V to 3.6V typical), while the -E suffix denotes an extended temperature grade of -40°C to +125°C suitable for industrial and automotive-grade designs.
Architecture-wise, the device uses a 14-bit instruction word with a 32MHz internal oscillator, eliminating the need for an external crystal in many designs. The integrated op amps and 10-bit ADC allow direct sensor conditioning without external analog front-end ICs, saving board space and BOM cost.
Typical applications include LED lighting control, sensor signal conditioning, motor control for small fans and pumps, IoT edge nodes, smart metering, and human-machine interface (HMI) control panels. The wide operating voltage makes it compatible with both 3.3V and 1.8V rails common in battery-powered products.
When designing with this MCU, ensure decoupling capacitors are placed within 5mm of the VDD pin and that unused I/O pins are configured as outputs to minimize sleep current. The internal 32MHz oscillator can drift with temperature; for timing-critical UART or PWM applications, consider routing an external crystal or using the internal FRC with periodic calibration.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a faster path to sourcing and BOM validation.
Drop-in alternatives for PIC16LF1765-E/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 PIC16LF1765-E/SL (same form factor and footprint) — differing in Package, Operating Temperature, Program Memory (Flash), Core Architecture, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1764-I/SL
✅ Drop-In✓ In Stock
$0.52 / Unit
View Datasheet →PIC16F1765-I/SL
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16LF1765-I/SL
✅ Drop-In✓ In Stock
$0.96 / Unit
View Datasheet →PIC16F1764-I/SL
✅ Drop-In✓ In Stock
$1.28 / Unit
View Datasheet →PIC16F1765-E/SL
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16LF1765-E/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC mid-range |
| CPU Frequency | 32 MHz |
| Instruction Word Width | 14-bit |
| Program Memory (Flash) | 14 KB (8K x 14) |
| Data RAM | 1 KB |
| EEPROM | 256 bytes |
| ADC | 10-bit |
| Operating Temperature Range | -40°C to +125°C (extended -E grade) |
| Package | 14-pin SOIC (SL) |
| Mounting Type | Surface Mount (Gull-Wing) |
| I/O Pin Count | 12 (14-pin package, 2 dedicated to VDD/VSS) |
| Internal Oscillator | Yes, 32 MHz |
| Low-Power Mode | XLP eXtreme Low Power (nA sleep current) |
| Analog Peripherals | Op-amps, Zero-Cross Detect, 10-bit ADC |
| RoHS Status | Compliant |
PIC16LF1765-E/SL Pin Configuration
| Pin 1 | RA5 — Digital I/O / analog input / I/O with input latch |
| Pin 2 | RA4 — Digital I/O / analog input |
| Pin 3 | RA3 — Digital I/O / analog input / MCLR/VPP |
| Pin 4 | RC5 — Digital I/O / analog input / PWM output |
| Pin 5 | RC4 — Digital I/O / analog input |
| Pin 6 | RC3 — Digital I/O / analog input / I²C SCL |
| Pin 7 | RC2 — Digital I/O / analog input / I²C SDA |
| Pin 8 | RC1 — Digital I/O / analog input / UART TX |
| Pin 9 | RC0 — Digital I/O / analog input / UART RX |
| Pin 10 | RA2 — Digital I/O / analog input / op-amp output |
| Pin 11 | VSS — Ground |
| Pin 12 | RA1 — Digital I/O / analog input / op-amp non-inverting input |
| Pin 13 | RA0 — Digital I/O / analog input / op-amp inverting input |
| Pin 14 | VDD — Positive supply voltage |
Typical Applications
PIC16LF1765-E/SL is suitable for 6 applications: LED Lighting Control, Industrial Sensor Conditioning, Battery-Powered IoT Edge Node, Small Motor and Fan Control, Smart Metering and Energy Monitoring, Human-Machine Interface (HMI).
LED Lighting Control
The PIC16LF1765-E/SL's integrated op-amps and 10-bit ADC enable direct LED current sensing without external analog front-end, while the 32MHz CPU supports PWM dimming and color-mixing algorithms. The XLP low-power modes allow standby power below 1µA for battery-powered luminaires and emergency lighting. With 14KB Flash, designers can implement DMX-512 or DALI protocol stacks alongside driver firmware. The extended -40°C to +125°C temperature range ensures operation in outdoor and industrial lighting fixtures.
Recommended
Industrial Sensor Conditioning
The PIC16LF1765-E/SL's built-in op-amp and zero-cross detect peripherals directly condition analog sensor signals such as thermocouples, RTDs, and AC line-voltage zero-crossings without external components. The 10-bit ADC supports up to 14 analog input channels across the SOIC-14 pinout. With 14KB Flash and 1KB RAM, it can run linearization routines, calibration tables, and Modbus RTU communication simultaneously. The wide Vdd range suits both 3.3V and 1.8V sensor-pole architectures.
Recommended
Battery-Powered IoT Edge Node
The PIC16LF1765-E/SL is designed for low-duty-cycle IoT edge nodes where its XLP sleep current (sub-µA) dominates battery life. The 32MHz internal oscillator eliminates external crystals for sub-MHz RF transmitter control. The 14-pin SOIC footprint is among the smallest in the Microchip 14-pin lineup, enabling compact PCB designs. Designers can implement BLE beaconing, LoRaWAN node control, or simple periodic sensor readout in 14KB Flash.
Recommended
Small Motor and Fan Control
The PIC16LF1765-E/SL's high-current I/O pins (up to 50mA source/sink on selected pins) can directly drive small DC motor MOSFET gates or low-power fans. The 32MHz CPU and 10-bit ADC support back-EMF sensing, tach feedback, and closed-loop PID control. The integrated op-amps sense motor current without external amplifiers. The 14-SOIC package drops into compact fan controllers and small appliance motor drives.
Recommended
Smart Metering and Energy Monitoring
The PIC16LF1765-E/SL's zero-cross detect, op-amps, and 10-bit ADC make it a single-chip solution for AC line-voltage and current sensing in smart meters. The 14KB Flash supports IEC 62053-22 energy calculation algorithms and protocol stacks (M-Bus, DLMS, Modbus). The extended -40°C to +125°C temperature grade is mandated for outdoor and meter enclosure installation. XLP low-power modes keep idle power below IEC standards for standby loss.
Recommended
Human-Machine Interface (HMI)
The PIC16LF1765-E/SL's 32MHz CPU drives software-PWM-based RGB status LEDs and key-scanning matrices for compact HMI panels. The 14KB Flash supports menu trees, button debounce, and serial backhaul (UART/I²C) to a main controller. The wide Vdd range (LF silicon) supports both 3.3V and 1.8V I/O rails. The -40°C to +125°C temperature range ensures operation in appliance and outdoor HMI applications.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1765-E/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1764-I/SL | PIC16F1765-I/SL | PIC16LF1765-I/SL | PIC16F1764-I/SL | PIC16F1765-E/SL |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SOIC-14 | SOIC-14 (same) | SOIC-14 (same) | SOIC-14 (same) | SOIC-14 (same) | SOIC-14 (same) |
| Flash Memory | 14 KB | 7 KB | 14 KB | 14 KB | 7 KB | 14 KB |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Voltage Variant | LF (1.8V - 3.6V) | LF (1.8V - 3.6V) | F (1.8V - 5.5V) | LF (1.8V - 3.6V) | F (1.8V - 5.5V) | F (1.8V - 5.5V) |
| Temperature Grade | Extended (-40°C to +125°C) | Industrial (-40°C to +85°C) | Industrial (-40°C to +85°C) | Industrial (-40°C to +85°C) | Industrial (-40°C to +85°C) | Extended (-40°C to +125°C) |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| 10-bit ADC | Yes | Yes | Yes | Yes | Yes | Yes |
| Pin-to-Pin Compatible | Reference | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Extended-temperature (-E) grade with full 14KB Flash (vs PIC16LF1764-I/SL)
- Integrated op-amps and zero-cross detect (vs PIC16F1765-I/SL)
- Lower operating voltage for battery designs (vs PIC16F1765-E/SL)
Design Notes
Estimated: At Vdd = 3.3V and active CPU at 32MHz, the PIC16LF1765 draws approximately 4-6 mA depending on peripheral usage. Place a 100nF decoupling capacitor within 5mm of the VDD pin and a 10µF bulk capacitor on the same rail. Use Sleep mode between sensor reads to achieve sub-µA standby current — the XLP feature can lower sleep current to ~30 nA typical with peripherals disabled. Estimated: average power budget = 4mA active + 50nA sleep ≈ 50µA average in 1% duty-cycle applications.
Keep the SOIC-14 ground pin (pin 11) trace short and connect it directly to the ground plane via a via near the pin. Route the analog input traces (RA0-RA5, RC0-RC5) away from digital switching signals to reduce ADC noise coupling. Place a guard ring around sensitive analog inputs if op-amp gain stages are used. The MCLR pin (pin 3) requires a 10kΩ pull-up to VDD for normal operation if not used as an I/O.
Do not exceed the absolute maximum Vdd of 4.0V for the LF silicon (3.6V recommended max). The internal 32MHz oscillator accuracy is typically ±2% over temperature — use an external crystal or HFINTOSC tuning if UART communication requires tight baud-rate accuracy. Configure unused I/O pins as outputs tied low to minimize shoot-through current in Sleep mode. Per the datasheet, MCLR must NOT be left floating during normal operation.
Estimated: For best ADC performance, isolate analog VDD from noisy digital VDD by using a ferrite bead or pi-filter. The exposed thermal pad on SOIC-14 (where present) should be soldered to a ground copper pour for thermal relief. Keep clock-out signals (RA6/RA7 not present on this 14-pin variant, so use RC0/RC1 for HF clock-out) away from analog inputs. Maintain at least 3x trace-width separation between analog and digital traces.
Compliance Information
RoHS compliance per Microchip product page and OnlineComponents product attribute. The -E temperature grade supports industrial/automotive environments but is not formally AEC-Q100 qualified — contact Microchip for AEC-Q100 parts.
