PIC16F1782T-I/SS - 8-Bit MCU, 3.5KB Flash, 12-bit ADC | Microchip
MPN: PIC16F1782T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.66 | $16.60 |
| 100 | $1.48 | $148.00 |
| 500 | $1.32 | $660.00 |
| 1,000 | $1.18 | $1,180.00 |
PIC16F1782T-I/SS Overview
An 8-bit microcontroller (MCU) is a small, low-power computer-on-a-chip built around an 8-bit data path and a Harvard or von Neumann architecture; it executes a compact instruction set, contains CPU flash, EEPROM, RAM, and CPU/basic timers on-chip, and serves as the core of embedded systems ranging from sensor nodes to white goods. The PIC16F1782 belongs to the enhanced mid-range PIC16 family, sitting below 16-bit PIC24 and dsPIC devices in Microchip's portfolio and above legacy baseline PIC10/PIC12/PIC16 parts in compute and analog capability. XLP™ (eXtreme Low Power) technology and nanoWatt features place it under the broader power management IC umbrella in system-level power trees.
Key features include 12-bit differential ADC with computation (ADC²), an 8-bit DAC, two op-amps, a 10-bit DAC reference, a 16-bit timer, and multiple communication peripherals: I²C, SPI, and EUSART with auto-baud detect. The device supports up to 12 I/O ports, internal oscillator calibration, and on-chip debug via ICSP™. The SSOP-28 form factor offers a small-PCB footprint while exposing nearly all peripheral pins.
The PIC16F1782 uses a modified Harvard architecture with a 14-bit instruction word, allowing most instructions to complete in one instruction cycle. CPU flash memory supports self-programmability under firmware control, while the 256-byte data EEPROM supports 1M erase/write cycles typical. Analog integration (12-bit ADC, 8-bit DAC, two op-amps, programmable ramp generator) is implemented on-chip, reducing external component count versus discrete analog implementations.
Typical applications include industrial sensor conditioning, LED lighting control with smooth dimming, battery chargers with closed-loop current/voltage regulation, motor control loops, and small appliances. The XLP nanoWatt modes also suit battery-powered sensor and metering designs.
Design consideration: PIC microcontrollers require proper supply decoupling and a stable reset circuit; place a 100 nF decoupling capacitor close to VDD and follow Microchip's oscillator configuration guidelines to ensure reliable startup. The device is supported by MPLAB® X IDE and the XC8 compiler for development.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16F1782T-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 PIC16F1782T-I/SS (same form factor and footprint) — differing in ADC, Package, Program Memory (Flash), DAC, Maximum CPU Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesPIC16F1782T-I/SS Maximum Ratings & Electrical Characteristics
| Architecture | 8-bit PIC® RISC (Harvard), enhanced mid-range |
| Instruction Word Size | 14 bits |
| Program Memory (Flash) | 3.5 KB |
| RAM | 256 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Instruction Execution | 200 ns (single-cycle) |
| Supply Voltage (VDD) | 2.5 V to 5.5 V |
| I/O Pins | 12 |
| ADC | 12-bit differential with computation (ADC²) |
| DAC | 8-bit DAC, 10-bit DAC reference |
| On-chip Op-Amps | 2 |
| Timers | 16-bit timer, plus 8-bit and basic timers |
| Communication | I²C, SPI, EUSART with auto-baud |
| Operating Temperature | -40 °C to +85 °C (industrial) |
| Package | SSOP-28 (5.30 mm width) |
| Low-Power Technology | XLP™ / nanoWatt |
| RoHS Status | Compliant |
PIC16F1782T-I/SS Pin Configuration
| Pin 1 | RA3/MCLR/VPP — General I/O / Master Clear reset / Programming voltage |
| Pin 2 | RA0 — PORTA bit 0 (analog/digital) |
| Pin 3 | RA1 — PORTA bit 1 (analog/digital) |
| Pin 4 | RA2 — PORTA bit 2 (analog/digital) |
| Pin 5 | RA4 — PORTA bit 4 |
| Pin 6 | RA5 — PORTA bit 5 |
| Pin 7 | RA6 — PORTA bit 6 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA7 — PORTA bit 7 (OSC2 in some modes) |
| Pin 10 | OSC1 — Crystal/clock input |
| Pin 11 | RB0 — PORTB bit 0 |
| Pin 12 | RB1 — PORTB bit 1 |
| Pin 13 | RB2 — PORTB bit 2 |
| Pin 14 | RB3 — PORTB bit 3 |
| Pin 15 | RB4 — PORTB bit 4 |
| Pin 16 | RB5 — PORTB bit 5 |
| Pin 17 | RB6/ICSPCLK — PORTB bit 6 / ICSP clock |
| Pin 18 | RB7/ICSPDAT — PORTB bit 7 / ICSP data |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
| Pin 21 | RC0 — PORTC bit 0 |
| Pin 22 | RC1 — PORTC bit 1 |
| Pin 23 | RC2 — PORTC bit 2 |
| Pin 24 | RC3 — PORTC bit 3 |
| Pin 25 | RC4 — PORTC bit 4 |
| Pin 26 | RC5 — PORTC bit 5 |
| Pin 27 | RC6 — PORTC bit 6 |
| Pin 28 | RC7 — PORTC bit 7 |
Typical Applications
PIC16F1782T-I/SS is suitable for 6 applications: Industrial Sensor Signal Conditioning, Battery-Powered Sensor Nodes, LED Lighting Dimming Control, Closed-Loop Battery Charger, Small Appliance Motor Control, Smart Sensor Hubs and Metering.
Industrial Sensor Signal Conditioning
The PIC16F1782T-I/SS integrates a 12-bit differential ADC², two on-chip op-amps, and an 8-bit DAC in a SSOP-28, eliminating external signal-chain components in thermocouple, RTD, and bridge-sensor interfaces. Its 3.5 KB Flash holds calibration tables and linearization routines, while XLP™ sleep current under 100 nA typical enables battery-backed sensor nodes. The industrial -40°C to +85°C grade supports factory-floor deployment. Per Microchip PIC16F1782 datasheet Section 27, the ADC² computes averaged and thresholded results in hardware, offloading CPU cycles for housekeeping. Pair with the PIC16F1783-I/SS migration target if program size grows above 3.5 KB.
Recommended
Battery-Powered Sensor Nodes
With XLP™ nanoWatt technology and a 2.5 V to 5.5 V supply, the PIC16F1782T-I/SS supports multi-year battery operation from coin cells in wireless sensor nodes. Sleep currents below 100 nA typical with LFINTOSC running, plus internal 16 MHz HFINTOSC eliminating external crystal leakage, make it ideal for periodic-sampling designs. The 12-bit ADC² computes averages in hardware, so the CPU can stay asleep longer between conversions. Per Microchip PIC16F1782 datasheet Section 30, the device supports deep-sleep wake from ADC, comparator, and timer interrupts, enabling energy budgets well below 10 µA average.
Recommended
LED Lighting Dimming Control
The PIC16F1782T-I/SS fits LED drivers with smooth dimming and constant-current control by combining its 8-bit DAC, 16-bit timer, and PWM peripherals. The on-chip op-amps implement current-sense feedback loops, while ADC² samples photodiode feedback for ambient-light compensation. Industrial temperature grade and 5 V operation suit commercial fixtures. Per Microchip application note AN1785, the PIC16F1782 family can implement closed-loop LED drivers with no external analog ICs, and the 32 MHz CPU bandwidth handles DMX-512 or DALI protocol parsing in firmware. Migrate to PIC16F1768-E/SS if more program memory is needed.
Recommended
Closed-Loop Battery Charger
For lithium-ion or NiMH battery chargers, the PIC16F1782T-I/SS uses its 12-bit differential ADC for high-side current sensing, the 8-bit DAC for set-point control, and the op-amps to amplify sense signals, all without external ICs. The 256-byte EEPROM stores cycle counts and CC/CV profile parameters, while 3.5 KB Flash fits state-machine charger firmware. The 32 MHz CPU executes fast control loops with hardware PWM for synchronous rectification. Per Microchip AN1849, the PIC16F1782's analog integration reduces charger BOM by 30-40% versus discrete implementations.
Recommended
Small Appliance Motor Control
BLDC and stepper motor control in small appliances is well-served by the PIC16F1782T-I/SS at 32 MHz CPU, with the 16-bit timer, PWM, and ADC² providing sensorless commutation support. The two on-chip op-amps amplify BEMF feedback, while the 8-bit DAC generates reference ramps for soft-start. SSOP-28 exposes sufficient I/O for Hall sensor inputs, power-switch gate drivers, and user-interface switches. Industrial -40°C to +85°C grade fits appliance environments. Per Microchip AN1164, the PIC16F1782 family runs sensorless BLDC algorithms at 32 MHz with full-bandwidth current control.
Recommended
Smart Sensor Hubs and Metering
The PIC16F1782T-I/SS can aggregate multiple sensors in a single hub, leveraging 12 I/O pins, I²C/SPI/EUSART, and ADC² to read temperature, flow, pressure, or other analog/digital sensors and output via UART or I²C. The 256-byte RAM and 256-byte EEPROM buffer calibration data, while 3.5 KB Flash fits standard MODBUS or proprietary protocols. Per Microchip PIC16F1782 datasheet Section 18, the device's PWM + op-amp combo can drive a 4-20 mA loop output for industrial transmitters. Its industrial temperature rating and 5 V tolerance simplify integration with legacy 5 V industrial networks.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1782T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1782-I/SS | PIC16F1783-I/SS | PIC16F1709-I/SS | PIC16F1768-E/SS | PIC16F15344T-I/SS |
|---|---|---|---|---|---|---|
| Package | SSOP-28 | SSOP-28 (same) | SSOP-28 (same) | SSOP-28 (same) | SSOP-28 (same) | SSOP-28 (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 3.5 KB | 3.5 KB | 7 KB | 1.75 KB | 7 KB | 7 KB |
| RAM | 256 B | 256 B | 512 B | 256 B | 512 B | 512 B |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| ADC Resolution | 12-bit differential ADC² | 12-bit ADC² | 12-bit ADC² | 10-bit ADC | 12-bit ADC² | 10-bit ADC |
| On-chip Op-Amps | 2 | 2 | 2 | 2 | 2 | 0 |
| DAC | 8-bit | 8-bit | 8-bit | 8-bit | 8-bit | 5-bit |
| Industrial Temperature Grade | Yes (-40°C to +85°C) | Yes | Yes | Yes | Extended grade | Yes |
Key Differentiators
- 12-bit differential ADC² plus two on-chip op-amps in 8-bit MCU (vs PIC16F1709-I/SS)
- More program memory (3.5 KB) than earlier baseline PIC16 parts (vs PIC16F15344T-I/SS)
- Industrial -40°C to +85°C grade with SSOP-28 footprint flexibility (vs PIC16F1782-I/SS)
Design Notes
Place a 100 nF decoupling capacitor as close as physically possible to the VDD pin (pin 20) of the PIC16F1782T-I/SS, with a short trace to VSS (pin 19 or pin 8). For designs that drive relays, motors, or LEDs, add a 10 µF bulk capacitor on the MCU power rail to handle inrush. The 2.5 V to 5.5 V supply tolerance allows direct 3.3 V LDO or 5 V USB bus power without level shifting. Decoupling is critical during ADC conversions, as VDD ripple directly couples into ADC readings on higher-impedance analog paths.
For SSOP-28 layouts, route ICSPCLK (pin 17) and ICSPDAT (pin 18) to an in-circuit programming header using a 2.54 mm pitch connector compatible with Microchip's MPLAB® PICkit™ 5 and Snap programmers. Keep analog traces short and away from digital switching nodes; for high-impedance analog inputs (op-amp feedback, ADC inputs) use ground guard rings or pour boundaries. Place the optional external crystal or resonator near pins 9-10, with short, symmetric traces and a ground plane guard on both sides. SSOP-28 supports MSL1, so standard reflow profiles up to 260°C peak are acceptable per JEDEC J-STD-020.
Do not leave the MCLR pin (pin 1) floating - even with internal weak pull-up enabled, an external 10 kΩ pull-up to VDD ensures robust reset behavior in noisy industrial environments. When migrating from PIC16F1782T-I/SS to PIC16F15344T-I/SS, recompile firmware for the new core and revalidate analog peripheral mapping; the PIC16F15344 family lacks the two on-chip op-amps present in PIC16F1782. Always set the configuration bits for the intended oscillator mode (HFINTOSC vs crystal) in the source file's #pragma config section, otherwise the device may fail to start at the expected frequency.
For best ADC² accuracy on the PIC16F1782T-I/SS, keep analog ground (VSS at pin 8) star-connected to the digital ground (VSS at pin 19) only at the power connector - or use a single solid ground plane with analog/digital separation at the FE end. The on-chip op-amps' non-inverting inputs share pins with PORTB, so plan pin assignments to avoid digital switching on op-amp input pins during conversions. Reference Microchip AN1171 and the PIC16F1782 family datasheet Section 30 for detailed analog-layout recommendations.
Compliance Information
Per Microchip product page the PIC16F1782 family is RoHS/REACH compliant and lead-free. AEC-Q100 is not applicable (consumer/industrial grade, not automotive).
