PIC16LF1783T-I/SO - 7KB Flash 8-Bit MCU, 28-SOIC | Microchip
MPN: PIC16LF1783T-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.31 | $2.31 |
| 10 | $2.05 | $20.50 |
| 100 | $1.82 | $182.00 |
| 500 | $1.59 | $795.00 |
| 1,000 | $1.41 | $1,410.00 |
PIC16LF1783T-I/SO Overview
An 8-bit microcontroller (MCU) is a small computer-on-a-chip that combines a CPU, memory, and configurable I/O peripherals on a single die. It sits in the broader hierarchy: microcontroller -> embedded microcontroller -> embedded IC -> semiconductor. The "PIC" RISC core uses a Harvard architecture with separate program and data buses, allowing instruction fetch and operand read in the same cycle for deterministic real-time response. The "LF" prefix denotes the wide-voltage, low-power "F" series variant optimized for battery and energy-harvesting designs.
Key features include 7KB Flash self-programmability, two op-amps usable as on-chip signal conditioning, an 8-bit DAC for analog output bias generation, a PSMC for power-conversion timing, and nanoWatt XLP sleep currents typically below 50 nA in sleep-with-RTC mode. These on-chip analog and timing peripherals reduce external BOM count in sensor-conditioning, LED-driving, and small SMPS designs. The 28-pin SOIC footprint is the standard wide-body JEDEC SOIC-28 outline, easing hand-soldering and breadboard prototyping.
Typical applications include battery-powered sensor nodes, low-cost industrial control boards, LED lighting controllers with analog dimming, small DC-DC converter control via PSMC, and consumer appliance user-interface modules. Peripherals like the 12-bit ADC and on-chip op-amps suit thermistor, RTD and current-sensing signal chains.
When designing with this part, ensure decoupling capacitors (typically 100 nF plus 1-10 uF bulk) sit within 5 mm of VDD, follow Microchip's MPLAB X IDE pin manager for alternate-function mapping, and respect the 1.8 V minimum VDD for LF (low-voltage F) variants to avoid Flash read errors.
This page synthesizes distributor pricing, same-brand drop-in alternatives, and design considerations for battery-powered designs not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16LF1783T-I/SO — 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 PIC16LF1783T-I/SO (same form factor and footprint) — differing in Package, Communication, Comparators, Operating Temperature, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1783-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1783T-I/SS
✅ Drop-In✓ In Stock
$1.45 / Unit
View Datasheet →PIC16LF1783T-I/ML
✅ Drop-In✓ In Stock
$1.86 / Unit
View Datasheet →PIC16LF1783-I/SS
✅ Drop-In✓ In Stock
$1.36 / Unit
View Datasheet →PIC16LF1783-I/ML
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16LF1783-E/SS
✅ Drop-In✓ In Stock
$1.84 / Unit
View Datasheet →PIC16LF1783T-I/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC (Harvard) |
| Series | PIC16LF1783, PIC XLP 16F family |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data Memory (RAM) | 512 B |
| EEPROM | 256 B |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial, "I") |
| ADC | 12-bit |
| DAC | 8-bit |
| On-chip Op-Amps | Yes (2x) |
| PSMC | Yes (Programmable Switch Mode Controller) |
| Comparators | Fast Comparators |
| Capture/Compare/PWM (CCP) | Yes |
| Communication | I2C, SPI, EUSART (RS-232/RS-485) |
| Low-Power Mode | nanoWatt XLP |
| Package | 28-pin SOIC (0.295 inch / 7.50 mm width) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16LF1783T-I/SO Pin Configuration
| Pin 1 | RA3/AN3/C1IN+/C2IN+/VREF+ — GPIO RA3 / Analog input / Comparator input / Voltage reference positive |
| Pin 2 | RA4/AN4/C1OUT/T0CKI — GPIO RA4 / Analog input / Comparator 1 output / Timer0 clock input |
| Pin 3 | RA5/AN5/OPA1IN+/SS1 — GPIO RA5 / Analog input / Op-amp 1 non-inverting input / SPI1 slave select |
| Pin 4 | RA6/OPA1OUT — GPIO RA6 / Op-amp 1 output |
| Pin 5 | RA7/OPA1IN- — GPIO RA7 / Op-amp 1 inverting input |
| Pin 6 | VDD — Positive power supply |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RA0/AN0/OPA2IN+/DACOUT — GPIO RA0 / Analog input / Op-amp 2 non-inverting input / DAC output |
| Pin 9 | RA1/AN1/OPA2IN-/C2IN+ — GPIO RA1 / Analog input / Op-amp 2 inverting input / Comparator 2 input |
| Pin 10 | RA2/AN2/OPA2OUT — GPIO RA2 / Analog input / Op-amp 2 output |
| Pin 11 | RC0/SOSC/T1CKI/CCP1 — GPIO RC0 / Secondary oscillator / Timer1 clock / CCP1 PWM output |
| Pin 12 | RC1/SMPS_SCP — GPIO RC1 / PSMC short-circuit protection input |
| Pin 13 | RC2/AN6/OPA1IN-/C2IN- — GPIO RC2 / Analog input / Op-amp 1 inverting input / Comparator 2 input |
| Pin 14 | RC3/AN7/OPA2IN-/C1IN- — GPIO RC3 / Analog input / Op-amp 2 inverting input / Comparator 1 input |
| Pin 15 | RC4/SDA1/SDI1 — GPIO RC4 / I2C1 data / SPI1 data in |
| Pin 16 | RC5/SCL1/SCK1 — GPIO RC5 / I2C1 clock / SPI1 clock |
| Pin 17 | RC6/AN8/CCP3/TX1/CK1 — GPIO RC6 / Analog input / CCP3 PWM / EUSART TX / EUSART clock |
| Pin 18 | RC7/AN9/CCP4/RX1/DT1 — GPIO RC7 / Analog input / CCP4 PWM / EUSART RX / EUSART data |
| Pin 19 | RB0/AN12/CCP5/INT — GPIO RB0 / Analog input / CCP5 PWM / External interrupt |
| Pin 20 | RB1/AN10/C1OUT/PSMC1IN — GPIO RB1 / Analog input / Comparator 1 output / PSMC1 input |
| Pin 21 | RB2/AN8/PSMC1OUT — GPIO RB2 / Analog input / PSMC1 PWM output |
| Pin 22 | RB3/AN9/C2OUT/PSMC2OUT — GPIO RB3 / Analog input / Comparator 2 output / PSMC2 output |
| Pin 23 | RB4/AN11/PSMC3OUT — GPIO RB4 / Analog input / PSMC3 output |
| Pin 24 | RB5/AN13/PSMC4OUT — GPIO RB5 / Analog input / PSMC4 output |
| Pin 25 | RB6/ICSPCLK — GPIO RB6 / ICSP programming clock |
| Pin 26 | RB7/ICSPDAT — GPIO RB7 / ICSP programming data |
| Pin 27 | MCLR/VPP — Master Clear (reset) / Programming voltage |
| Pin 28 | VSS — Ground reference |
Typical Applications
PIC16LF1783T-I/SO is suitable for 6 applications: Battery-Powered Sensor Node, Industrial Control Board, LED Lighting Controller with Analog Dimming, Small DC-DC Converter Control (PSMC), Consumer Appliance User Interface, Automotive Interior Lighting Module.
Battery-Powered Sensor Node
The PIC16LF1783T-I/SO suits battery-powered sensor nodes because its nanoWatt XLP sleep current below 50 nA and 1.8 V minimum VDD allow direct 2x AA or coin-cell operation. Per Microchip's XLP technical brief, the 12-bit ADC plus two on-chip op-amps enable direct thermistor, RTD, or photodiode conditioning without an external analog front-end, reducing BOM by 2-3 ICs. PSMC and 8-bit DAC provide a programmable excitation source for resistive bridges. The 32 MHz core executes sensor fusion and periodic transmissions with duty cycles below 0.1 percent, enabling 1-3 year battery life in environmental monitoring deployments.
Recommended
Industrial Control Board
The PIC16LF1783T-I/SO fits industrial control boards because its industrial temperature rating (-40 C to +85 C), wide 1.8 V to 3.6 V supply tolerance, and EUSART (RS-232/RS-485) plus I2C/S peripherals support Modbus, sensor hubs, and motor-driver interfaces. The 7 KB Flash comfortably holds Modbus RTU slave stacks and PID control loops, while the 12-bit ADC reads 4-20 mA loop signals via a sense resistor. CCP and PSMC modules generate PWM outputs for solenoid, relay, and small BLDC drivers. SOIC-28 hand-solder-friendly packaging simplifies field-serviceable designs and shortens prototype-to-production transitions.
Recommended
LED Lighting Controller with Analog Dimming
The PIC16LF1783T-I/SO excels in LED lighting controllers because the 8-bit DAC generates analog dimming bias while PSMC and CCP modules drive PWM LED current control. Per Microchip application note AN1627, combining DAC-set DC bias with PWM current control achieves both high-resolution dimming (>1000:1) and high-efficiency switching. The two on-chip op-amps can be configured as transconductance stages for closed-loop current sensing. Wide 1.8-3.6 V supply supports battery-powered or USB-powered architectural fixtures without auxiliary regulators.
Recommended
Small DC-DC Converter Control (PSMC)
The PIC16LF1783T-I/SO is well suited as a small DC-DC converter controller because its integrated Programmable Switch Mode Controller (PSMC) generates complementary PWM outputs with programmable dead-band, frequency, and duty cycle up to 32 MHz. Per Microchip AN2034, PSMC supports buck, boost, and flyback topologies without external PWM ICs. The 12-bit ADC samples feedback via on-chip op-amps configured as error amplifiers, while the 8-bit DAC sets the reference. SOIC-28 allows inspection-friendly prototype assemblies for power lab validation.
Recommended
Consumer Appliance User Interface
The PIC16LF1783T-I/SO suits consumer appliance user-interface modules because the 12-bit ADC reads multiple capacitive-touch and rotary-encoder inputs while PSMC and CCP drive LED indicators, buzzers, and small relays. Per Microchip TB3145, the on-chip op-amps support direct signal conditioning for AC zero-cross detection. With 7 KB Flash, complete UI state machines, debounce logic, and bootloader fit comfortably; nanoWatt XLP standby is critical for ENERGY STAR-rated standby power under 0.5 W for always-on appliances like refrigerators and washing machines.
Recommended
Automotive Interior Lighting Module
The PIC16LF1783T-I/SO can serve in non-safety automotive interior lighting where AEC-Q100 qualification is not strictly required, leveraging its analog-rich peripheral set (12-bit ADC, 8-bit DAC, PSMC) and -40 C to +85 C industrial temperature range. Per Microchip PIC16LF1783 family reference design, the device supports LIN-slave communication via EUSART with an external LIN transceiver, ambient-light sensing, and RGB LED driving with both analog bias and PWM intensity. The SOIC-28 footprint simplifies in-line programming during assembly. Designers targeting AEC-Q100 must select the PIC16F1783-Q1 equivalent or higher-tier AEC-qualified PIC18/dsPIC families.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1783T-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1783-I/SO | PIC16LF1783T-I/SS | PIC16LF1783T-I/ML | PIC16LF1783-I/ML | PIC16LF1783-E/SS | PIC16LF1783-I/SS |
|---|---|---|---|---|---|---|---|
| Package | 28-SOIC (0.295 inch) | 28-SOIC (0.295 inch) - same | 28-SSOP (0.209 inch) - narrower | 28-QFN (6x6 mm) - same family | 28-QFN (6x6 mm) - same family | 28-SSOP (0.209 inch) - narrower, ext temp | 28-SSOP (0.209 inch) - narrower |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 7 KB | 7 KB | 7 KB | 7 KB | 7 KB | 7 KB | 7 KB |
| RAM | 512 B | 512 B | 512 B | 512 B | 512 B | 512 B | 512 B |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| 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 | 1.8 V to 3.6 V |
| Temperature Range | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C (Extended) | -40 C to +85 C |
| Packaging Format | Tape and Reel | Tube | Tape and Reel | Tape and Reel | Tube | Tube | Tube |
Key Differentiators
- Highest program memory (7 KB) and RAM (512 B) density in PIC16LF178x series (vs PIC16LF1782-I/SO)
- Industrial temperature grade with widest 1.8 V VDD minimum for battery operation (vs PIC16F1783 (F variant))
- PSMC and on-chip op-amps reduce external PWM controller and analog front-end IC count (vs PIC16LF1554-I/ML)
Design Notes
Place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 6) and a bulk 1-10 uF tantalum or ceramic capacitor at the board-level VDD node. The PIC16LF1783T-I/SO's nanoWatt XLP sleep current is highly sensitive to decoupling placement - inadequate bypassing can increase sleep current by 5-10x, destroying battery-life budgets. Per Microchip AN1418, a ferrite bead between VDD and analog AVVDD rails is recommended when using the ADC at high source impedance.
When migrating from PIC16F1783 (F variant) to PIC16LF1783 (LF variant), confirm maximum VDD never exceeds 3.6 V. The F variant tolerates 5.5 V while the LF variant is limited to 3.6 V per Microchip datasheet DS40001674. Brown-out Reset (BOR) must be enabled in CONFIG1 register for LF variants at 1.8 V operation; disabling BOR at low VDD can cause Flash read errors and watchdog-triggered resets.
Estimated: SOIC-28 has theta_JA approximately 55 C/W on a 4-layer JEDEC test board. At 32 MHz CPU + active ADC + DAC + PSMC, typical core current consumption is approximately 5 mA at 3.3 V. Power dissipation is therefore approximately 16.5 mW, yielding junction temperature rise below 1 C above ambient - well within the -40 C to +85 C industrial range. Designers are advised to verify current consumption directly with the PIC16LF1783 typical characteristics curves in the Microchip datasheet, since peripherals can add 1-3 mA each when active.
Route the ICSP clock (RB6/ICSPCLK, pin 25) and ICSP data (RB7/ICSPDAT, pin 26) traces away from PSMC PWM outputs (RB2-RB5) to prevent in-circuit programming interference. Place a 4.7 kohm pull-up on MCLR/VPP (pin 27) to ensure clean reset transitions. SOIC-28 wide-body spacing of 0.05 inch pitch simplifies hand-soldering and rework, making this package preferred for prototype and low-volume runs versus QFN-28.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose PIC16F1783-Q1 for automotive safety applications. LF variant supports 1.8 V minimum VDD; F variant supports 5.5 V maximum VDD.
