PIC16LF1503T-I/SL - 8-Bit MCU 20MHz 3.5KB Flash 14-SOIC
MPN: PIC16LF1503T-I/SL β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.05 | $1.05 |
| 10 | $0.98 | $9.80 |
| 100 | $0.92 | $92.00 |
| 500 | $0.85 | $425.00 |
| 1,000 | $0.79 | $790.00 |
| 2,600 | $0.74 | $1,924.00 |
PIC16LF1503T-I/SL Overview
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU, volatile RAM, non-volatile program memory (Flash), and peripherals on one die. Within the broader hierarchy, this device belongs to PIC microcontrollers > 8-bit MCU > microcontroller > embedded processor > semiconductor. PIC16F/LF parts combine a RISC Harvard architecture with deterministic interrupt handling, making them a foundation for cost-sensitive and low-power embedded designs.
Key features include 20 MHz CPU speed with single-cycle instruction execution, 4 hardware timers (Timer0, Timer1, Timer2), a 10-bit ADC with multiple acquisition channels, CWG for complementary MOSFET drive, NCO for fine-frequency synthesis without a PLL, and CLC for combinational/sequential logic implementing glue functions in hardware. The 1.8V minimum supply supports battery-operated systems, and ultra-low power sleep modes preserve battery life.
The architecture uses a 14-bit instruction word with separate code and data buses (Harvard), enabling simultaneous instruction fetch and data access. The XLP technology delivers sub-uA sleep currents, supporting designs such as energy-harvesting nodes where the MCU spends most of its time in Sleep.
Typical applications include consumer appliance controls, LED lighting controllers, sensor signal conditioning nodes, low-cost IoT end nodes, and battery-powered handheld devices. The combination of NCO and CLC enables frequency generation and custom digital logic without external components.
When designing with this device, configure the ADC reference and acquisition time carefully; an inadequate acquisition time introduces nonlinearity. Use CLC and NCO to offload repetitive tasks from the CPU and reduce wake frequency, optimizing average power.
This page synthesizes distributor pricing, drop-in alternatives, application examples, and design notes beyond the manufacturer datasheet.
Drop-in alternatives for PIC16LF1503T-I/SL β 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 PIC16LF1503T-I/SL (same form factor and footprint) β differing in ADC, Package, Core Architecture, Operating Temperature Range, Timers.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16LF1503-I/SL
β Drop-Inπ Reference alternative (not in catalog)
PIC16LF1503-I/P
β Drop-Inπ Reference alternative (not in catalog)
PIC16LF1503-E/SL
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
PIC16LF1503T-E/SL
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
PIC16F1503-I/SL
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$0.59 / Unit
View Datasheet βPIC16LF1503T-I/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC |
| CPU Frequency | 20 MHz |
| Program Memory | 3.5 KB (2K x 14) Flash |
| RAM | 128 bytes |
| Operating Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 12 |
| ADC | 10-bit |
| Timers | 4 (Timer0, Timer1, Timer2, WDT) |
| Peripheral Modules | CLC, CWG, NCO |
| Package | 14-SOIC (0.150 inch) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C |
| Packing Media | Tape and Reel (2600) |
| Lead Count | 14 |
| RoHS Status | Compliant |
PIC16LF1503T-I/SL Pin Configuration
| Pin 1 | RA5/!MCLR/VPP β RA5 GPIO / !MCLR reset / VPP programming voltage |
| Pin 2 | RA0 β PORTA I/O; analog input |
| Pin 3 | RA1 β PORTA I/O; analog input |
| Pin 4 | RA2 β PORTA I/O; analog input |
| Pin 5 | RA3 β PORTA I/O / !MCLR (alt mode); analog input |
| Pin 6 | RA4 β PORTA I/O; analog input |
| Pin 7 | VSS β Ground reference |
| Pin 8 | RC0 β PORTC I/O |
| Pin 9 | RC1 β PORTC I/O |
| Pin 10 | RC2 β PORTC I/O |
| Pin 11 | RC3 β PORTC I/O |
| Pin 12 | RC4 β PORTC I/O |
| Pin 13 | RC5 β PORTC I/O |
| Pin 14 | VDD β Positive supply voltage (1.8V-3.6V) |
Typical Applications
PIC16LF1503T-I/SL is suitable for 6 applications: Consumer Appliance Control, LED Lighting Controller, IoT Sensor End Node, Battery-Powered Handheld Device, Sensor Signal Conditioning Node, Hobbyist/Educational MCU Board.
Consumer Appliance Control
Low-cost 8-bit MCU with 3.5 KB Flash, 128 B RAM, and 12 GPIO handles user-input scanning, sensor acquisition, and PID-driven heater or motor control. Operating from 1.8V to 3.6V, it supports single-cell Li-ion or DC rectified supplies and XLP sleep currents below 1 uA. Used in kitchen timers, water heaters, and small appliance HMI.
Recommended
LED Lighting Controller
The CWG outputs drive complementary MOSFETs for LED strings, while the 10-bit ADC handles analog dimming through a sense resistor. A/D conversions plus CLC-accomplished PWM correction remove external gate driver ICs, and XLP sleep adds energy-harvesting compatibility. The 14-SOIC 0.150 inch package fits compact bulb form factors.
Recommended
IoT Sensor End Node
Three GPIO-free timers and 128 B RAM cover periodic sensor reads with sub-uA sleep, well-matched to coin-cell remote controls, PIR-driven sensors, and RF wake-link front-ends. The NCO generates 16-kHz wake ticks without waking the CPU, and the 10-bit ADC supports voltage-, RTD-, or thermistor-based measurements.
Recommended
Battery-Powered Handheld Device
The 1.8V minimum supply and XLP sleep support multi-year coin-cell runtime in remote controls or asset tags. The CLC plus NCO deliver chirp and wake signals without external parts, allowing low BOM cost. The 14-SOIC 0.150 inch package streams cleanly through wave/solder reflow.
Recommended
Sensor Signal Conditioning Node
Twelve GPIO plus 10-bit ADC read resistive, voltage, and temperature sensors. The NCO synthesizes excitation signals for AC-bridge conditioning, while the CLC implements digital filters in hardware. This pairing reduces the BOM compared with op-amp + external logic designs in industrial and metering applications.
Recommended
Hobbyist/Educational MCU Board
With 14 GPIO and 20 MHz, the PIC16LF1503T-I/SL is well-suited as an entry-level MCU on breadboard modules. Its instruction-set compatibility with PICkit and MPLAB X IDE lowers learning barriers, and its 14-SOIC 0.150 inch package fits DIP-adapter boards. Embedded-systems learners use it for timer interrupts, ADC, and CLC exercises.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1503T-I/SL β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1503-I/SL | PIC16LF1503-I/P | PIC16LF1503-E/SL | PIC16LF1503T-E/SL | PIC16F1503-I/SL |
|---|---|---|---|---|---|---|
| Package | 14-SOIC (0.150 in) | 14-SOIC (same) | 14-SOIC (same) | 14-SOIC (same) | 14-SOIC (same) | 14-SOIC (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 3.5 KB Flash | 3.5 KB Flash | 3.5 KB Flash | 3.5 KB Flash | 3.5 KB Flash | 3.5 KB Flash |
| Operating 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 5.5V (wider) |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (extended) | -40C to +125C (extended) | -40C to +85C |
| Packing Media | Tape and Reel (2600) | Tube (no 'T') | Tube / PDIP | Tube | Tape and Reel | Tube / SOIC |
| GPIO Count | 12 | 12 | 12 | 12 | 12 | 12 |
| XLP Low-Power | Yes (1.8V min) | Yes | Yes | Yes | Yes | No (5.5V max) |
Key Differentiators
- Same-brand drop-in alternative with industrial -40C to +125C rating (vs PIC16LF1503-E/SL)
- Lowest-voltage variant in the family (vs PIC16F1503-I/SL)
- Tape-and-reel packing for high-volume assembly (vs PIC16LF1503-I/SL)
Design Notes
Place VDD/VSS decoupling as close to pins 14 and 7 of the 14-SOIC as practical. Estimated: a 100 nF X7R ceramic bypass reduces digital-switching voltage excursions. Add a bulk capacitor of at least 1 uF near VDD if the supply is shared with motor or LED drivers.
For battery-operated designs, drive the device from a 1.8V LDO rather than a switching regulator. Estimated: an LDO paired with the XLP sleep-mode current keeps quiescent draw below 2 uA over a 3.3V cell. Use !MCLR tied to VDD via 10 kohm resistor for clean reset edge.
Ensure the !MCLR/VPP pin configuration is correct; using !MCLR as GPIO requires configuration-word changes that may lock out in-circuit programming. Avoid using the PIC16F1503 as a cross-package substitute; verify the package suffix (-SL, -ST, -P, -MG) before substitution.
Compliance Information
RoHS and lead-free compliant per Microchip product page. Country of origin: Thailand. AEC-Q100 not applicable (not the -Q1 automotive suffix).
