PIC16LF1782T-I/SS - 8-bit MCU, 32MHz, 3.5KB Flash, 12-bit ADC | Microchip
MPN: PIC16LF1782T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.57 | $25.70 |
| 100 | $2.28 | $228.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.82 | $1,820.00 |
PIC16LF1782T-I/SS Overview
An 8-bit PIC microcontroller (MCU) is a class of microcontroller built around an 8-bit data path and Harvard architecture, meaning program and data memory use separate buses. The PIC16 family sits within Microchip's broader PIC microcontroller hierarchy: PIC16 -> mid-range 8-bit MCU -> microcontroller -> embedded semiconductor. These devices are widely used for deterministic real-time control with low power consumption, particularly in battery-operated and sensor-interface designs.
The PIC16LF1782 integrates 24 digital I/O pins, two op-amps, two comparators, three timers, a 16-bit PWM module, EUSART, I2C, SPI, and a programmable reference. Its eXtreme Low Power (XLP) technology enables active current consumption in the microamp range, with sleep currents down to a few nanoamps depending on configuration. The integrated 12-bit ADC achieves effective resolutions that are useful for precision sensor conditioning without an external ADC.
Typical applications include low-power sensor nodes, IoT edge devices, battery-powered instrumentation, LED lighting controllers, and portable consumer products where extended battery life and analog integration reduce BOM cost. The 1.8V to 3.6V supply range supports operation from a single Li-ion or two AA cells. Designers benefit from the integrated op-amps for signal conditioning, eliminating external analog components.
When designing with this part, ensure decoupling on VDD/AVDD and use MPLAB X IDE with XC8 compiler for firmware development. Programming and debugging are supported via ICSP (In-Circuit Serial Programming) through dedicated PGC/PGD pins, simplifying field updates.
Drop-in alternatives for PIC16LF1782T-I/SS — 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 PIC16LF1782T-I/SS (same form factor and footprint) — differing in Package, Operating Temperature, Comparators, I/O Pins, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1782-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1782T-I/SO
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16LF1783T-I/SS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.45 / Unit
View Datasheet →PIC16LF1782-I/SO
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16LF1782-I/ML
✅ Drop-In✓ In Stock
$1.24 / Unit
View Datasheet →PIC16LF1768-I/SS
✅ Drop-In✓ In Stock
$0.86 / Unit
View Datasheet →PIC16LF1776-I/SS
✅ Drop-In✓ In Stock
$1.45 / Unit
View Datasheet →PIC16LF1782T-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 Harvard RISC 8-bit |
| Family | PIC XLP 16F |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| Data EEPROM | 256 bytes |
| Data RAM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage | 1.8 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) |
| ADC | 12-bit, up to 11 channels |
| DAC | 8-bit |
| Digital I/O Pins | 24 |
| Op-Amps / Comparators | 2 / 2 |
| Timers | 3 (Timer0, Timer1, Timer2) |
| Communication Interfaces | EUSART, I2C, SPI |
| PWM Channels | Yes (PSMC + CCP) |
| Package | 28-SSOP (0.209 inch, 5.30 mm width) |
| Mounting Type | Surface Mount |
| MSL Level | 1 |
| RoHS Status | Compliant |
| Programming Method | ICSP (In-Circuit Serial Programming) |
PIC16LF1782T-I/SS Pin Configuration
| Pin 1 | MCLR/VPP — Master Clear (Reset) input or programming voltage input |
| Pin 2 | RA0/AN0/C1IN+ — PORTA bit 0 / Analog input 0 / Comparator 1 positive input |
| Pin 3 | RA1/AN1/C1IN-/OPA1IN+ — PORTA bit 1 / Analog input 1 / Comparator 1 negative input / Op-amp 1 positive input |
| Pin 4 | RA2/AN2/VREF-/DAC1OUT — PORTA bit 2 / Analog input 2 / Voltage reference negative / DAC 1 output |
| Pin 5 | RA3/AN3/VREF+/C1OUT — PORTA bit 3 / Analog input 3 / Voltage reference positive / Comparator 1 output |
| Pin 6 | RA4/AN4/OPA1IN-/C2OUT — PORTA bit 4 / Analog input 4 / Op-amp 1 negative input / Comparator 2 output |
| Pin 7 | RA5/AN5/OPA1OUT — PORTA bit 5 / Analog input 5 / Op-amp 1 output |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA7/OSC1/CLKIN — PORTA bit 7 / Oscillator input / External clock input |
| Pin 10 | RA6/OSC2/CLKOUT — PORTA bit 6 / Oscillator output / Clock output |
| Pin 11 | RC0/SOSCFO/T1CKI — PORTC bit 0 / Secondary oscillator output / Timer1 clock input |
| Pin 12 | RC1/SOSCFI/CCP2 — PORTC bit 1 / Secondary oscillator input / Capture/Compare/PWM 2 |
| Pin 13 | RC2/CCP1 — PORTC bit 2 / Capture/Compare/PWM 1 |
| Pin 14 | RC3/SCL1/SCK1 — PORTC bit 3 / I2C clock 1 / SPI clock 1 |
| Pin 15 | RC4/SDA1/SDI1 — PORTC bit 4 / I2C data 1 / SPI data input 1 |
| Pin 16 | RC5/SDO1 — PORTC bit 5 / SPI data output 1 |
| Pin 17 | RC6/TX/CK — PORTC bit 6 / EUSART transmit / EUSART clock |
| Pin 18 | RC7/RX/DT — PORTC bit 7 / EUSART receive / EUSART data |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
| Pin 21 | RB0/AN6/CCP3 — PORTB bit 0 / Analog input 6 / Capture/Compare/PWM 3 |
| Pin 22 | RB1/AN7/C2IN+ — PORTB bit 1 / Analog input 7 / Comparator 2 positive input |
| Pin 23 | RB2/AN8/OPA2IN+ — PORTB bit 2 / Analog input 8 / Op-amp 2 positive input |
| Pin 24 | RB3/AN9/OPA2IN-/PGM — PORTB bit 3 / Analog input 9 / Op-amp 2 negative input / LVP programming |
| Pin 25 | RB4/AN10/SDA2 — PORTB bit 4 / Analog input 10 / I2C data 2 |
| Pin 26 | RB5/AN11/SCL2 — PORTB bit 5 / Analog input 11 / I2C clock 2 |
| Pin 27 | RB6/PGC — PORTB bit 6 / Programming clock (ICSP) |
| Pin 28 | RB7/PGD — PORTB bit 7 / Programming data (ICSP) |
Typical Applications
PIC16LF1782T-I/SS is suitable for 6 applications: Battery-Powered IoT Sensor Node, Portable Medical Monitoring Devices, LED Lighting and Backlight Controllers, Industrial Sensor Interface Modules, Consumer Remote Controls and HMI, Portable Test and Measurement Instruments.
Battery-Powered IoT Sensor Node
The PIC16LF1782T-I/SS suits battery-powered IoT sensor nodes because its XLP sleep current of approximately 50 nA extends battery life beyond five years on a single CR2032 cell. The integrated 12-bit ADC directly samples temperature, humidity, or gas sensors without external signal conditioning, while the 32 MHz core enables wake-measure-transmit-mote cycles in well under a second. Two on-chip op-amps support thermocouple or bridge-sensor amplification, eliminating analog front-end ICs. The 1.8V to 3.6V supply range allows direct operation from a Li-ion or two AA cells. Compared with a discrete MCU + external ADC architecture, the PIC16LF1782T-I/SS reduces BOM count, PCB area, and quiescent current simultaneously, making it a strong fit for wireless sensor nodes, BLE beacons, and remote monitoring stations.
Recommended
Portable Medical Monitoring Devices
The PIC16LF1782T-I/SS fits portable medical monitoring devices such as pulse oximeters, glucose meters, and wearable health patches. Its 12-bit ADC achieves the resolution needed for SpO2 photodiode current sensing, while the on-chip op-amps transimpedance-amplify optical signals without external analog components. XLP low-power modes extend battery life for multi-day continuous monitoring, and the industrial -40C to +85C range supports body-worn and ambient conditions. The 28-SSOP package is compact enough for small-form-factor wearables, and ICSP enables firmware updates after regulatory approval. For these reasons the PIC16LF1782T-I/SS is a cost-effective 8-bit core for medical-grade peripherals requiring IEC 60601-friendly low-leakage designs.
Recommended
LED Lighting and Backlight Controllers
The PIC16LF1782T-I/SS functions well as a smart LED lighting controller, leveraging its PSMC (Programmable Switch Mode Controller) peripheral and 16-bit PWM channels to drive high-brightness LED strings with smooth dimming. The 12-bit ADC reads ambient light sensors or potentiometers for closed-loop brightness control, while the 8-bit DAC provides analog trim outputs. Compared with a discrete analog dimmer, the PIC16LF1782T-I/SS enables software-configurable color-mixing, fade patterns, and PWM frequency adjustment. The 1.8V to 3.6V range suits USB-powered or Li-ion-supplied lighting. Designers should add a logic-level MOSFET driver for high-current LED strings, but the MCU itself integrates the control logic, reducing component count substantially.
Recommended
Industrial Sensor Interface Modules
The PIC16LF1782T-I/SS is well suited for industrial 4-20 mA sensor interfaces, RTD/thermistor signal conditioning, and bridge sensor readout modules. Two integrated op-amps provide instrumentation-amplifier gain stages for strain-gauge load cells or pressure sensors, while the 12-bit ADC delivers adequate resolution for typical industrial measurements. The 24 I/O pins drive status LEDs, control relays, and interface to RS-485 transceivers via the integrated EUSART. The industrial -40C to +85C temperature range supports cabinet-mount operation. Compared with using a 32-bit ARM MCU, the PIC16LF1782T-I/SS achieves sub-1mA active current, reducing thermal dissipation and power-supply requirements for isolated sensor modules.
Recommended
Consumer Remote Controls and HMI
The PIC16LF1782T-I/SS powers consumer remote controls, small HMI panels, and wireless key fobs due to its low cost, low power, and integrated peripherals. The EUSART, I2C, and SPI interfaces connect to RF transceivers (Sub-GHz or 2.4 GHz modules) and OLED displays without external peripherals. Sleep currents below 50 nA extend coin-cell battery life beyond the shelf life of the battery itself. The 24 I/O pins scan up to 4x6 key matrices with interrupt-on-change wake-up, enabling instantaneous response from deep sleep. The 28-SSOP package is small enough for slim remote enclosures, and MPLAB X IDE with MCC simplifies code generation for time-to-market-driven consumer products.
Recommended
Portable Test and Measurement Instruments
The PIC16LF1782T-I/SS functions as the control MCU in portable digital multimeters, clamp meters, and handheld insulation testers. The 12-bit ADC combined with integrated op-amps performs direct RMS voltage and current measurements up to the meter's specified bandwidth. Compared with a dedicated multimeter IC, this approach yields a more flexible user interface, customizable calibration, and easier firmware updates via ICSP. The integrated 8-bit DAC generates reference voltages for self-test or calibration routines, while EUSART outputs measurement data to Bluetooth modules for wireless logging. The 1.8V to 3.6V operation suits 3.3V Li-ion rechargeable packs commonly used in modern handheld instruments.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1782T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1782-I/SS | PIC16LF1783T-I/SS | PIC16LF1768-I/SS | PIC16LF1776-I/SS | PIC16LF1782-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP (0.209 inch) | 28-SSOP (0.209 inch) - same | 28-SSOP (0.209 inch) - same | 28-SSOP (0.209 inch) - same | 28-SSOP (0.209 inch) - same | 28-QFN (6x6 mm) |
| Program Memory (Flash) | 3.5 KB (2K x 14) | 3.5 KB (2K x 14) | 7 KB (4K x 14) | 7 KB (4K x 14) | 14 KB (8K x 14) | 3.5 KB (2K x 14) |
| Data RAM | 256 bytes | 256 bytes | 512 bytes | 1 KB | 1 KB | 256 bytes |
| Data EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 10-bit | 10-bit | 12-bit |
| DAC Resolution | 8-bit | 8-bit | 8-bit | 8-bit | 10-bit | 8-bit |
| Integrated Op-Amps | 2 | 2 | 2 | 1 | 4 | 2 |
Key Differentiators
- Integrated analog front-end (2 op-amps + 2 comparators + 12-bit ADC + 8-bit DAC) eliminates external analog ICs (vs PIC16LF1508-I/P (28-PDIP MCU with no op-amps, 10-bit ADC))
- eXtreme Low Power (XLP) technology with sub-50nA sleep current (vs PIC16F1782T-I/SS (F variant without LF low-power modes))
- PSMC (Programmable Switch Mode Controller) for advanced PWM (vs PIC16LF1765T-I/ML (similar MCU without PSMC peripheral))
Design Notes
Add a 100 nF decoupling capacitor as close as possible to the VDD (pin 20) lead, plus a bulk 10 uF tantalum or ceramic cap on the VDD rail. For noise-sensitive analog designs, also place a 100 nF cap on AVSS/AVDD if separate analog supply pins are used, and use wide ground planes around the SSOP-28 thermal pad to reduce digital switching noise coupling into the 12-bit ADC.
Route the ICSP lines (PGC/PGD on RB6/RB7) with a ground-trace shield and keep them away from analog inputs (AN0-AN11) to avoid coupling programming noise into ADC readings. Place the MCLR pull-up resistor (typically 10 kOhm) close to the pin, and add a series diode for VPP isolation if your application uses MCLR as a manual reset button. The 28-SSOP land pattern should follow the JEDEC MS-150 standard.
Do not exceed the 3.6V absolute maximum on VDD - the PIC16LF1782 is a 'LF' (low-voltage) variant and will be damaged by 5V signals. Configure unused I/O pins as outputs (not inputs) to prevent floating-pin current consumption. When migrating from PIC16F1782 firmware, verify that the supply voltage is within 1.8-3.6V; the PIC16F1782 supports up to 5.5V, so existing 5V code may reference out-of-range peripheral configurations.
For optimal 12-bit ADC performance, set the ADC clock source to FOSC/16 or slower (per datasheet AC characteristics), and use the Aquisition Time Select bits (ADCON1.ACQT) to allow at least 5 us settling time for high-impedance sources. Avoid routing high-frequency digital signals (PWM outputs, oscillator) directly adjacent to analog inputs - maintain at least 3x the trace-to-trace spacing of the analog trace width.
Compliance Information
RoHS compliant per Microchip product page and JLCPCB listing. Industrial -40C to +85C operating range. Not AEC-Q100 qualified; for automotive applications, consult Microchip's PIC16F1xx AEC-Q100 portfolio.
