PIC16F1574-E/SL - 8-bit MCU, 7KB Flash, 16-bit PWM | Microchip
MPN: PIC16F1574-E/SL β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.62 | $1.62 |
| 10 | $1.46 | $14.60 |
| 100 | $1.31 | $131.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $1.05 | $1,050.00 |
PIC16F1574-E/SL Overview
What is a PIC16 microcontroller? An 8-bit PIC16 microcontroller is a RISC-based CMOS MCU from Microchip's mid-range family, sitting in the hierarchy: PIC16 -> PIC MCU family -> 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor. These devices are widely used in embedded control because they combine deterministic instruction execution, ultra-low power sleep modes, configurable peripherals, and a mature toolchain (MPLAB X IDE, XC8 compiler, PICkit programmers).
The PIC16F1574 delivers four 16-bit PWMs with independent timers at a base oscillator of 32 MHz - enabling high-resolution timing for digital LED lighting, motor control, and analog-feedback loops. Its 10-bit ADC with up to 8 channels, 5-bit DAC, and two comparators allow mixed-signal feedback without external ICs. The CWG peripheral generates complementary outputs with programmable dead-band for half-bridge and full-bridge drivers. PPS remaps digital peripherals to nearly any I/O pin, simplifying PCB routing.
Typical applications include high-resolution LED lighting controllers, BLDC and brushed-DC motor drivers, fan speed controllers, battery chargers, and general-purpose sensor interface nodes. The 14-pin SOIC package keeps the BOM footprint compact for cost-sensitive designs, and the wide 1.8V-5.5V supply range allows direct Li-ion or 3.3V/5V system integration.
When designing with the PIC16F1574, ensure the ICSP pins (RB6/RA0 area) are not loaded in a way that prevents in-circuit programming. Use the Configuration Words register to set oscillator, watchdog, brown-out, and code-protect options before any application code runs.
Drop-in alternatives for PIC16F1574-E/SL β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16F1574-I/SL
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1574T-I/SL
β Drop-Inπ Reference alternative (not in catalog)
PIC16F1574-E/P
β Drop-Inβ In Stock
$0.95 / Unit
View Datasheet βPIC16F1574-E/SL Maximum Ratings & Electrical Characteristics
| Architecture | 8-bit PIC16 RISC |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| RAM | 512 B |
| Maximum CPU Frequency | 32 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V |
| Operating Temperature | -40 C to +125 C (Extended -E grade) |
| 16-bit PWM Modules | 4 with independent timers |
| ADC | 10-bit, up to 8 channels |
| DAC | 5-bit |
| Comparators | 2 |
| EUSART | 1 |
| CWG (Complementary Waveform Generator) | Yes |
| PPS (Peripheral Pin Select) | Yes |
| Package | 14-pin SOIC (SL) 0.15 in |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16F1574-E/SL Pin Configuration
| Pin 1 | RA5 β Digital I/O / analog input (ICSPCLK on some configurations) |
| Pin 2 | RA4 β Digital I/O / analog input |
| Pin 3 | RA3 β Digital I/O / analog input / MCLR (reset, weak pull-up) |
| Pin 4 | RA2 β Digital I/O / analog input |
| Pin 5 | RA1 β Digital I/O / analog input / ICSPDAT |
| Pin 6 | RA0 β Digital I/O / analog input |
| Pin 7 | VSS β Ground reference |
| Pin 8 | RB7 β Digital I/O / ICSPDAT alternate |
| Pin 9 | RB6 β Digital I/O / ICSPCLK alternate |
| Pin 10 | RB5 β Digital I/O / analog input |
| Pin 11 | RB4 β Digital I/O / analog input |
| Pin 12 | VDD β Positive supply voltage (1.8V-5.5V) |
| Pin 13 | RA7 β [DATA_NEEDED: Pin function verification for 14-pin SOIC] |
| Pin 14 | RA6 β [DATA_NEEDED: Pin function verification for 14-pin SOIC] |
Typical Applications
PIC16F1574-E/SL is suitable for 7 applications: High-Resolution LED Lighting Controllers, BLDC and Brushed-DC Motor Control, Battery Charging and Power Management, Sensor Interface and IoT Edge Nodes, Industrial Control and Automation, Smart Home and Building Automation, Consumer Appliance User Interface Boards.
High-Resolution LED Lighting Controllers
The PIC16F1574-E/SL is purpose-built for high-resolution LED lighting. Its four 16-bit PWMs with independent timers provide up to 65536 dimming steps per channel, far beyond the 10-bit PWMs of older PIC16 devices. According to the Microchip datasheet DS40002326, the 32 MHz core drives each PWM at PWM resolution that eliminates visible flicker in dim-to-warm and tunable-white fixtures. The 10-bit ADC reads ambient-light sensors and thermistors for closed-loop brightness and color-temperature compensation, while the 5-bit DAC generates analog reference voltages for current-controlled LED drivers. The CWG peripheral produces complementary outputs with programmable dead-band for synchronous-buck LED driver topologies.
Recommended
BLDC and Brushed-DC Motor Control
The PIC16F1574-E/SL drives small BLDC and brushed-DC motors in fans, pumps, and appliances. Four 16-bit PWMs feed the CWG to generate 3-phase complementary gate-drive signals with programmable dead-band, eliminating the need for an external motor-control ASIC. The 10-bit ADC samples back-EMF or shunt current for sensorless commutation, while the two comparators implement fast hardware over-current protection that bypasses the CPU. PPS remaps PWM outputs to any I/O pin, simplifying PCB layout when routing 3-phase bridges. Extended -40C to +125C operation supports under-hood automotive and outdoor industrial deployments.
Recommended
Battery Charging and Power Management
The PIC16F1574-E/SL implements CC/CV charging profiles for Li-ion, lead-acid, and NiMH battery packs. Its 1.8 V-5.5 V supply range operates directly from a single Li-ion cell, while the 10-bit ADC monitors battery voltage, charge current, and temperature for accurate termination and safety. The four 16-bit PWMs drive synchronous-buck or flyback charger topologies with high-resolution duty-cycle control, and the EUSART links to a host MCU for SMBus or PMBus telemetry. According to the Microchip datasheet DS40002326, the on-chip 5-bit DAC generates reference voltages for current-sense amplifiers, removing external parts.
Recommended
Sensor Interface and IoT Edge Nodes
The PIC16F1574-E/SL serves as a low-power sensor-interface MCU for IoT edge nodes. PPS remaps I2C, SPI, and UART to nearly any pin, simplifying PCB layout when connecting multiple sensors. The 10-bit ADC and 5-bit DAC support analog sensor conditioning, while the EUSART links to Bluetooth or Wi-Fi modules for cloud connectivity. According to the Microchip datasheet DS40002326, the device supports nanoWatt sleep modes with sub-microamp current for battery-powered sensor nodes lasting years on a single coin cell. The 14-pin SOIC package keeps the BOM compact.
Recommended
Industrial Control and Automation
The PIC16F1574-E/SL fits industrial control modules where Extended -40C to +125C temperature, PWM resolution, and analog integration matter. The 10-bit ADC reads 4-20 mA loop signals, the 5-bit DAC generates analog outputs for valve controllers, and the four 16-bit PWMs drive TRIAC phase-angle controllers. The two comparators implement hardware-limit detection without CPU load. According to the Microchip datasheet DS40002326, the EUSART supports RS-485 links via external transceivers, enabling Modbus RTU slave modules in factory automation.
Recommended
Smart Home and Building Automation
The PIC16F1574-E/SL drives smart-home devices such as dimmer switches, fan controllers, and HVAC damper actuators. Its four 16-bit PWMs generate phase-controlled AC outputs for TRIAC or IGBT dimmers, while the 10-bit ADC reads zero-cross detectors for sync. The EUSART connects to wireless modules for Zigbee or Matter bridges, and the on-chip 5-bit DAC generates analog setpoint voltages for HVAC systems. The compact 14-pin SOIC package fits behind wall-switch faceplates, and PPS remaps digital functions to simplify PCB layout in cramped enclosures.
Recommended
Consumer Appliance User Interface Boards
The PIC16F1574-E/SL manages UI boards in white goods, coffee machines, and small kitchen appliances. The four 16-bit PWMs drive LED indicator brightness and buzzer tones, while the 10-bit ADC reads capacitive-touch or potentiometer inputs. PPS simplifies routing of keypad scanning across multiple pins, and the EUSART links to a main appliance controller board. Extended -40C to +125C operation handles the heat of enclosed appliances. According to the Microchip datasheet DS40002326, the 7 KB Flash accommodates complex UI state machines without external memory.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1574-E/SL β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1574-I/SL | PIC16F1574T-I/SL | PIC16F1574-E/P |
|---|---|---|---|---|
| Package | 14-pin SOIC (SL) | 14-pin SOIC (SL) - same | 14-pin SOIC (SL) - same | 14-pin PDIP (P) - DIFFERENT through-hole footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Temperature Grade | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C |
| Flash Memory | 7 KB | 7 KB | 7 KB | 7 KB |
| RAM | 512 B | 512 B | 512 B | 512 B |
| 16-bit PWM Channels | 4 | 4 | 4 | 4 |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit |
| Mounting Type | Surface Mount (SOIC) | Surface Mount (SOIC) | Surface Mount (SOIC, tape-and-reel) | Through-Hole (PDIP) |
| Packaging | Tube (57 pcs) | Tube | Tape-and-Reel | Tube (PDIP) |
Key Differentiators
- Extended -40C to +125C operating temperature in 14-pin SOIC (vs PIC16F1574-I/SL)
- Four 16-bit PWMs with independent timers (vs PIC16F1503-I/ST)
- On-chip CWG and PPS for flexible peripheral routing (vs PIC16F1574-E/P)
Design Notes
Place a 100 nF decoupling capacitor as close as physically possible to the VDD pin (pin 12 on the 14-pin SOIC). Add a bulk capacitor of 1 uF to 10 uF on the same VDD trace if the supply is shared with high-current PWM loads. Keep the VSS trace short and use a ground plane where the SOIC footprint allows, since the PIC16F1574 relies on solid ground return for ADC accuracy and PWM timing. According to the Microchip datasheet DS40002326, VDD rise time must be monotonic for proper POR.
Configure the Configuration Words register (CONFIG1, CONFIG2) before any application code runs. The PIC16F1574's default unprogrammed state enables the internal oscillator and disables the watchdog - most designs require WDT enabled and FOSC set explicitly. Failure to lock the configuration can cause field returns with seemingly random resets. Use MPLAB X IDE's configuration bits window to verify every project build.
The PIC16F1574-E/SL's PPS (Peripheral Pin Select) allows digital peripherals to be remapped to most I/O pins, but the analog functions (ADC, DAC, comparator inputs) are tied to fixed pins. Route analog traces away from PWM outputs and clock lines to avoid coupling. Use guarded analog traces or a ground pour around sensitive ADC inputs for noisy LED-driver boards.
The PIC16F1574-E/SL in 14-pin SOIC has a thermal resistance theta_JA of approximately 100 C/W on a standard JEDEC 2-layer test board. Estimated: at VDD=5V, 32 MHz, and full peripheral load, core current is around 5 mA (0.025 W), so self-heating is negligible. However, GPIO sourcing/sinking up to 25 mA per pin combined with high PWM switching can produce noticeable warming in sealed enclosures; verify with a thermal probe if the design is enclosed.
Compliance Information
RoHS compliant per Microchip product page and FindIC listing. AEC-Q100 not auto-qualified (industrial grade); automotive applications should perform their own qualification or use PIC16F1574-E/SLVAO variants.
