PIC16LF1783T-I/SS - 8-bit XLP MCU, 7KB Flash, 12-bit ADC | Microchip
MPN: PIC16LF1783T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.32 | $2.32 |
| 10 | $2.07 | $20.70 |
| 100 | $1.81 | $181.00 |
| 500 | $1.62 | $810.00 |
| 1,000 | $1.45 | $1,450.00 |
PIC16LF1783T-I/SS Overview
An 8-bit microcontroller is a single-chip processor based on an 8-bit data bus, optimized for deterministic embedded control in cost- and power-constrained designs. The PIC16LF1783 belongs to Microchip's enhanced mid-range PIC16 family, sitting hierarchically between the baseline 8-bit PIC10/12/16 families and 16-bit dsPIC/PIC24 devices, and integrates analog peripherals that traditionally required external components.
Key features include 4.17 mA typical active current at 32 MHz, sub-uA sleep currents thanks to XLP technology, a hardware 12-bit ADC rather than the more common 10-bit converter, dual internal rail-to-rail op-amps suitable for sensor conditioning, and the PSMC block for high-resolution PWM generation in switch-mode power control loops. The device also supports in-circuit serial programming (ICSP) through dedicated PGC/PGD pins, simplifying prototyping with Microchip's MPLAB X IDE.
Architecturally, the PIC16LF1783 uses a RISC-based Harvard core with a 14-bit instruction word and 200 ns instruction execution at full speed, and provides a rich vectored interrupt structure that helps deterministic firmware design. The integrated op-amps and configurable PSMC make it unusually capable for a generic 28-pin MCU, reducing BOM cost in motor drive, lighting, and power-conversion sub-systems.
Typical applications include handheld battery-powered sensor nodes, LED lighting controllers with analog dimming, small DC-DC converter control via PSMC, industrial instrumentation front ends using the on-chip op-amps, and consumer appliances needing integrated 12-bit analog. The wide VDD range and XLP sleep modes also suit energy-harvesting and remote-control products.
When designing with this part, budget VDD headroom for the 32 MHz operation and ensure decoupling capacitors are placed adjacent to VDD/AVDD/VSS pins. Engineers should also verify that the selected op-amp and PSMC pin mapping matches the PCB layout - several pins are remappable through PPS-like configuration but the device is not full PPS-capable like the PIC18 family.
This page synthesizes distributor stock data, pin-compatible Microchip drop-in alternatives, and design considerations not consolidated in the manufacturer datasheet, helping engineers shortlist replacements and design partners in one place.
Drop-in alternatives for PIC16LF1783T-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 PIC16LF1783T-I/SS (same form factor and footprint) — differing in Package, Operating Temperature, Communication, Comparators, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
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 →PIC16LF1782T-I/SS
✅ Drop-In✓ In Stock
$1.82 / Unit
View Datasheet →PIC16F1783T-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1783T-I/SS Maximum Ratings & Electrical Characteristics
| Architecture | 8-bit PIC16 enhanced mid-range (RISC, 14-bit instruction word) |
| Family | PIC16LF178x, XLP eXtreme Low Power |
| Maximum CPU Frequency | 32 MHz |
| Instruction Execution Time | 200 ns at 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14) |
| Data RAM | 512 B |
| Data EEPROM | 256 B |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| ADC | 12-bit, up to 11 channels |
| DAC | 8-bit, 1 channel |
| Operational Amplifiers | 3 on-chip op-amps |
| Comparators | 2 with rail-to-rail input |
| PWM Modules | PSMC + 3 CCP/ECCP |
| Communication | 1x EUSART, 1x I2C/SPI, 1x SPI |
| I/O Pins | 25 (approx, 28-pin package minus VDD/VSS) |
| Operating Temperature | -40C to +85C (Industrial, -I suffix) |
| Package | SSOP-28 (5.30 mm body, 0.65 mm pitch) |
| Mounting Type | Surface Mount |
| MSL Level | 1 (per JEDEC J-STD-020, typical for SSOP) |
| RoHS Status | Compliant (Microchip standard) |
PIC16LF1783T-I/SS Pin Configuration
| Pin 1 | RA3/AN3/Vref+/C1INB- — GPIO/Analog input 3/Vref+/Comparator 1 inverting B |
| Pin 2 | RA4/AN4/C2INB- — GPIO/Analog input 4/Comparator 2 inverting B |
| Pin 3 | RA5/AN5/OPA1IN+/DACOUT — GPIO/Analog input 5/Op-amp 1 input+/DAC output |
| Pin 4 | RA6/OPA1IN- — GPIO/Op-amp 1 input- |
| Pin 5 | RA7/OPA1OUT — GPIO/Op-amp 1 output |
| Pin 6 | VSS — Ground reference |
| Pin 7 | VDD — Positive supply voltage |
| Pin 8 | RB0/AN12/CCP4/INT — GPIO/Analog input 12/CCP4/External interrupt |
| Pin 9 | RB1/AN10/CCP5/C2OUT — GPIO/Analog input 10/CCP5/Comparator 2 output |
| Pin 10 | RB2/AN8 — GPIO/Analog input 8 |
| Pin 11 | RB3/AN9/C1OUT/PGM — GPIO/Analog input 9/Comparator 1 output/LVP programming |
| Pin 12 | RB4/AN11 — GPIO/Analog input 11 |
| Pin 13 | RB5/AN13 — GPIO/Analog input 13 |
| Pin 14 | RB6/PGC/ICSPCLK — GPIO/In-circuit serial programming clock |
| Pin 15 | RB7/PGD/ICSPDAT — GPIO/In-circuit serial programming data |
| Pin 16 | RC0/SOSCO — GPIO/Secondary oscillator output (32.768 kHz crystal) |
| Pin 17 | RC1/SOSCI — GPIO/Secondary oscillator input |
| Pin 18 | RC2/AN14/OPA2OUT — GPIO/Analog input 14/Op-amp 2 output |
| Pin 19 | RC3/AN15/OPA2IN- — GPIO/Analog input 15/Op-amp 2 input- |
| Pin 20 | RC4/AN16/OPA2IN+ — GPIO/Analog input 16/Op-amp 2 input+ |
| Pin 21 | RC5/AN17/OPA3OUT — GPIO/Analog input 17/Op-amp 3 output |
| Pin 22 | RC6/AN18/AN8/OPA3IN- — GPIO/Analog input 18/Op-amp 3 input- |
| Pin 23 | RC7/AN19/OPA3IN+ — GPIO/Analog input 19/Op-amp 3 input+ |
| Pin 24 | RE3/MCLR/VPP — Master clear reset / Programming voltage |
| Pin 25 | RA0/AN0/OPA2IN+ — GPIO/Analog input 0/Op-amp 2 input+ |
| Pin 26 | RA1/AN1/OPA1IN+ — GPIO/Analog input 1/Op-amp 1 input+ |
| Pin 27 | RA2/AN2/Vref-/C1INB+ — GPIO/Analog input 2/Vref-/Comparator 1 non-inverting B |
| Pin 28 | VSS — Ground reference |
Typical Applications
PIC16LF1783T-I/SS is suitable for 6 applications: Battery-Powered Sensor Node, LED Lighting Controller with Analog Dimming, Small DC-DC Converter Control via PSMC, Industrial Instrumentation Front End, Consumer Appliance Control Board, Motor Drive Subsystem (BLDC/PMSM).
Battery-Powered Sensor Node
The PIC16LF1783T-I/SS fits battery-powered sensor nodes because its XLP (eXtreme Low Power) technology delivers sub-uA sleep currents while the integrated 12-bit ADC provides 11 channels for multi-sensor reading without an external analog front-end. With 1.8V-3.6V VDD, the device runs directly from a single CR2032, 2x AA, or single-cell Li-ion battery, eliminating boost converters. The 7KB Flash accommodates Bluetooth Low Energy stack fragments, Modbus, or proprietary sensor-fusion firmware. Compared with a discrete ADC+MCU solution, the on-chip 12-bit converter reduces BOM cost and PCB area while improving noise immunity through shorter analog traces. Energy budgets of 5-10 years on a single CR2032 are realistic when the MCU sleeps between acquisitions. Engineers should configure ADC acquisition windows based on source impedance (use 4-8 us TACQ for typical 10kohm sensors) and use the on-chip DAC for sensor excitation bias.
Recommended
LED Lighting Controller with Analog Dimming
The PIC16LF1783T-I/SS is well-suited to LED lighting controllers because its 8-bit DAC and three on-chip op-amps enable closed-loop current regulation without external analog ICs. The PSMC (Programmable Switched Mode Controller) generates high-resolution PWM up to 32 MHz clock granularity, providing finer dimming steps than standard CCP modules. The 12-bit ADC reads photo-sensor and current-sense signals directly, while the integrated op-amps can be configured as transconductance amplifiers for LED current feedback. Designers can achieve 0.1% dimming resolution at 1 kHz PWM frequency - critical for cinema-grade lighting or horticultural applications. Unlike LED driver ICs, the PIC16LF1783T-I/SS allows custom color-mixing algorithms via firmware, supporting tunable white and RGB-W fixtures. Decoupling: place 100 nF and 10 uF ceramic caps adjacent to VDD and AVDD pins; isolate analog and digital ground planes under the SSOP-28 footprint.
Recommended
Small DC-DC Converter Control via PSMC
The PIC16LF1783T-I/SS integrates Microchip's PSMC peripheral, providing high-resolution PWM with programmable dead-band control ideal for small DC-DC converters such as buck, boost, or flyback stages up to ~50W. The 12-bit ADC samples output voltage and current for closed-loop regulation, while the three on-chip op-amps provide current-sense amplification and error amplification without external components. Compared with a discrete PWM controller IC, the PIC16LF1783T-I/SS adds digital communication (EUSART, I2C, SPI) for telemetry and remote control. Operating from 1.8V-3.6V, it pairs naturally with 3.3V logic-level MOSFET drivers. The PSMC's programmable fault response and hardware blanking simplify implementation of cycle-by-cycle current limiting. Estimated: at VIN=12V, VOUT=5V, IOUT=2A (10W), using a companion external buck stage with ~90% efficiency, the MCU side dissipates under 0.1W - easily handled without heatsinking.
Recommended
Industrial Instrumentation Front End
The PIC16LF1783T-I/SS is well-suited to industrial instrumentation front ends because the three integrated op-amps and 12-bit ADC implement the entire analog signal chain from sensor to digital. A load-cell scale, RTD temperature transmitter, or pressure transducer conditioner can be built using only the MCU plus passives - eliminating separate instrumentation amplifiers and ADC ICs. The PIC16LF1783T-I/SS operates over -40C to +85C industrial temperature range and includes a robust 28-pin SSOP package suited to harsh environments. The EUSART and I2C peripherals support 4-20 mA loop digital replacement or RS-485 Modbus connectivity. Compared with legacy PIC16F877A designs, this part reduces component count by ~30% while improving ADC resolution from 10-bit to 12-bit. A practical 4-channel load-cell conditioner design can fit in 5KB Flash, leaving 2KB for Modbus or HART-lite protocol stacks.
Recommended
Consumer Appliance Control Board
The PIC16LF1783T-I/SS fits consumer appliance control boards such as coffee machines, small kitchen devices, washing machine sub-modules, or air purifiers due to its low BOM integration and energy efficiency. The 32 MHz 8-bit CPU executes user-interface state machines, sensor processing, and motor control loops in real time, while XLP sleep modes keep standby power under 1 mW to meet Energy Star requirements. The integrated op-amps can directly interface NTC/PTC temperature sensors used in coffee machines and ovens, and the 8-bit DAC drives buzzer audio or LED brightness. A complete coffee machine controller board typically uses the PIC16LF1783T-I/SS, a triac driver, an LCD, and a few sensors - reducing the BOM by approximately 30% compared with discrete solutions. ICSP programming via PGC/PGD pins enables field firmware updates without disassembly.
Recommended
Motor Drive Subsystem (BLDC/PMSM)
The PIC16LF1783T-I/SS works as a supervisory or low-power motor controller for BLDC/PMSM motors in fans, pumps, and small appliances where full FOC is not required. The PSMC generates complementary PWM outputs with programmable dead-band for three-phase half-bridge drives, while the three integrated op-amps implement back-EMF sensing or shunt current amplification. The 12-bit ADC reads phase currents and DC-bus voltage at the PWM rate for cycle-by-cycle protection and trapezoidal commutation. The 32 MHz CPU provides enough headroom for 6-step commutation, soft-start, and fault recovery algorithms. For higher-performance FOC applications, pair with a dsPIC33EP series; for simple single-quadrant fan or pump control, the PIC16LF1783T-I/SS standalone suffices. Estimated: at 24V/2A (48W motor input), only the external power stage dissipates significant heat - the MCU consumes under 50 mW.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1783T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1783-I/SS | PIC16LF1783-I/ML | PIC16LF1783-E/SS | PIC16LF1782T-I/SS | PIC16F1783T-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-28 | SSOP-28 (same) | QFN-28 (ML) | SSOP-28 (same) | SSOP-28 (same) | SSOP-28 (same) |
| Program Memory (Flash) | 7 KB | 7 KB | 7 KB | 7 KB | 3.5 KB (-50%) | 7 KB |
| Data RAM | 512 B | 512 B | 512 B | 512 B | 256 B (-50%) | 512 B |
| Data EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Supply Voltage (VDD) | 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 5.5 V (F-version wider range) |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (extended) | -40C to +85C | -40C to +85C |
| Packaging Format | Tape & Reel (T-suffix) | Tube (no T) | Tube | Tube | Tape & Reel | Tape & Reel |
Key Differentiators
- Integrated 12-bit ADC vs typical 10-bit in PIC16 mid-range (vs PIC16F886 / PIC16F877A (10-bit ADC legacy))
- Three on-chip op-amps eliminate external analog ICs (vs PIC16F1783-I/SS (LF version - same op-amps, but PIC16F886 has none))
- PSMC for high-resolution PWM in motor control and SMPS (vs PIC16F886 (no PSMC, only standard CCP/ECCP))
- XLP eXtreme Low Power with sub-uA sleep (vs PIC16F886 (typical 1-5 uA sleep without XLP))
Design Notes
The PIC16LF1783T-I/SS XLP technology delivers sub-uA sleep currents, but only when the peripherals are correctly configured. Disconnect the A/D converter, op-amps, comparators, and reference voltage source before sleep via the PMD and CMxCON registers - leaving any analog peripheral active can increase sleep current by 10-100x. Always disable the ADC ADON bit and use the PWRSAV instruction rather than software busy-wait loops. For battery-powered designs targeting 5-year CR2032 life, measure actual sleep current with a 6.5-digit multimeter or uCurrent adapter rather than trusting the datasheet typical - it can vary by up to 50% across individual units.
Place 100 nF and 10 uF ceramic decoupling capacitors within 2 mm of VDD (pin 7) and AVSS/VSS pins, with short and wide traces. Separate analog and digital ground planes are NOT supported on a 28-pin SSOP without an exposed pad - use a single ground plane with separate analog and digital domains joined at one point under the MCU. Keep ADC analog inputs and reference traces away from PWM and digital switching signals to minimize crosstalk. The ICSP programming pins RB6/PGC and RB7/PGD should be accessible via test pads or a 0.1 inch header for production programming and field firmware updates.
Common pitfalls with the PIC16LF1783T-I/SS include: (1) leaving the watchdog timer disabled in production firmware (always enable with 2-4 s timeout to recover from firmware lockups); (2) using a 5V VDD on an LF device, which destroys the part - LF variants are strictly 3.6V maximum; (3) forgetting that RE3/MCLR is an input-only pin and cannot be used as a general GPIO without MCLRE disabled in CONFIG; (4) running the ADC at maximum sample rate without computing the proper acquisition time TACQ based on source impedance, leading to inaccurate readings; (5) failing to use the BOR (Brown-Out Reset) configuration bit, which prevents undefined behavior at low VDD.
The 28-pin SSOP package has a typical theta_JA around 90 C/W when mounted on a standard JEDEC 4-layer test board. At 32 MHz active and 3.3V VDD with all peripherals enabled, typical active current is 4-5 mA, dissipating approximately 13-17 mW - well within SSOP thermal limits. Even at 85C ambient industrial temperature, the junction temperature stays below 100C with no heatsinking required. For high-temperature designs near 125C (use PIC16LF1783-E/SS instead), verify with actual measurements.
The 12-bit ADC requires careful PCB layout to achieve datasheet performance. Use the AVSS pin as the analog ground reference and route analog inputs away from switching signals. The on-chip op-amps can be configured as unity-gain buffers to drive the ADC, isolating the input from charge kickback. For low-impedance sensor signals (<=10 kohm), TACQ of 4 us is sufficient; for high-impedance signals (>10 kohm), increase TACQ to 8-12 us and add an external buffer op-amp. Use the on-chip 2.048V or 4.096V fixed voltage reference (FVR) for better stability than VDD-based conversions.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; for automotive applications, choose PIC16F1783-E/SP or AEC-Q100-qualified PIC18/dsPIC families. Halogen-free per Microchip environmental compliance declarations.
