PIC16LF1575-E/ST - 8-bit MCU 14KB Flash 32MHz 14-TSSOP | Microchip
MPN: PIC16LF1575-E/ST ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.45 | $1.45 |
| 10 | $1.32 | $13.20 |
| 100 | $1.18 | $118.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.92 | $920.00 |
| 2,500 | $0.81 | $2,025.00 |
PIC16LF1575-E/ST Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals on one silicon die. Within the broader taxonomy, an MCU is a microcontroller, which is a subclass of embedded processor and a member of the semiconductor integrated circuit family. 8-bit MCUs are widely used for deterministic control tasks where simple instruction set, low cost, and ultra-low standby power outweigh the throughput of 32-bit cores. The PIC16F157X family in particular emphasizes high-resolution analog peripherals, including 16-bit PWM and 10-bit ADC, that allow direct control of LEDs and motor valves without external DACs.
Key differentiating specifications include 14KB (8K x 14 words) Flash with self-programmable in-circuit support, 1KB SRAM, hardware Peripheral Pin Select (PPS) for flexible pin mapping, four independent 16-bit PWMs with dedicated timers for high-resolution LED dimming, and an integrated Complementary Waveform Generator (CWG) for half-/full-bridge control. The architecture supports up to 32MHz operation with a 2-cycle hardware multiplier and 49 instruction set, enabling efficient C-compiled firmware.
The PIC16LF1575 uses a RISC-based Harvard architecture with separate program and data buses, giving deterministic interrupt latency and a single-instruction-cycle 49-base opcode core. The 'LF' variant specifies a wide 1.8V-3.6V operating range; the 'F' variant (PIC16F1575) extends to 5.5V. Integrated Core Independent Peripherals (CIPs) such as CWG, NCO, and PWM operate without CPU intervention, freeing the core for application logic.
Typical applications include high-resolution LED lighting drivers (RGBW strips, signage, architectural lighting), motor and solenoid drive (using CWG + 16-bit PWM), IoT sensor nodes with EUSART-linked radios, automotive interior lighting, and general-purpose mixed-signal control replacing analog potentiometer circuits with digital precision. The PIC16LF1575-E/ST is supplied in 14-TSSOP (Thin Shrink Small Outline Package, 4.4mm body width) for space-constrained designs where 8- or 14-pin DIP is too large but 20+ pins is unnecessary.
When designing with the PIC16LF1575-E/ST, ensure the chosen supply voltage matches the 'LF' 1.8V-3.6V range; use the PPS feature to remap peripherals only to PPS-capable pins. For LED dimming, leverage the 16-bit PWM (period up to 65535 counts) to achieve >0.001% resolution at typical 1 kHz dimming rates. Decoupling should follow the datasheet recommendation (typically 0.1 uF + bulk) within 5mm of VDD.
This page synthesizes distributor pricing, drop-in alternatives, application guidance, and design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16LF1575-E/ST — 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 PIC16LF1575-E/ST (same form factor and footprint) — differing in Package, Program Memory (Flash), ADC, Operating Temperature, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1575-I/ST
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.62 / Unit
View Datasheet →PIC16LF1575-I/ST
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.2 / Unit
View Datasheet →PIC16LF1575-E/SL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.85 / Unit
View Datasheet →PIC16LF1574-I/ST
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.85 / Unit
View Datasheet →PIC16LF1554-I/ST
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.85 / Unit
View Datasheet →PIC16F1574-I/ST
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.76 / Unit
View Datasheet →PIC16LF1575-E/ST Maximum Ratings & Electrical Characteristics
| Core | 8-bit PIC16 RISC |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| RAM | 1 KB |
| Max CPU Speed | 32 MHz |
| Operating Voltage (LF variant) | 1.8 V to 3.6 V |
| ADC | 10-bit |
| DAC | 5-bit |
| PWM Channels | 4 x 16-bit |
| Complementary Waveform Generator (CWG) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| EUSART | Yes |
| Timers | 16-bit (multiple) |
| Operating Temperature | -40 C to +125 C (automotive grade "E") |
| Package | 14-TSSOP |
| Pin Count | 14 |
| Mounting Type | Surface Mount (TSSOP, gull-wing) |
| MSL Level | 1 (unlimited at floor life <30 C / 85% RH) |
| RoHS Status | Compliant |
| Instruction Set | 49 base opcodes (PIC16 mid-range enhanced) |
PIC16LF1575-E/ST Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8V to 3.6V) |
| Pin 2 | RA5 — Bidirectional I/O pin / PPS-capable |
| Pin 3 | RA4 — Bidirectional I/O pin / PPS-capable |
| Pin 4 | RA3/MCLR/VPP — Master Clear (reset) input / programming high voltage |
| Pin 5 | RA2 — Bidirectional I/O pin / analog input / PPS-capable |
| Pin 6 | RA1 — Bidirectional I/O pin / analog input / PPS-capable |
| Pin 7 | RA0 — Bidirectional I/O pin / analog input / PPS-capable |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RB7 — Bidirectional I/O pin / PPS-capable |
| Pin 10 | RB6 — Bidirectional I/O pin / PPS-capable |
| Pin 11 | RB5 — Bidirectional I/O pin / analog input / PPS-capable |
| Pin 12 | RB4 — Bidirectional I/O pin / analog input / PPS-capable |
| Pin 13 | RB3 — Bidirectional I/O pin / PPS-capable |
| Pin 14 | RB2 — Bidirectional I/O pin / analog input / PPS-capable |
Typical Applications
PIC16LF1575-E/ST is suitable for 6 applications: High-Resolution LED Lighting Driver, Complementary Waveform Motor / Solenoid Drive, Battery-Powered IoT Sensor Node, Automotive Interior Lighting Control, Digital Potentiometer Replacement Circuit, Industrial Control Loop Replacement.
High-Resolution LED Lighting Driver
The PIC16LF1575-E/ST is purpose-built for high-resolution LED lighting, with four 16-bit PWMs delivering >16,000-step dimming resolution at typical 1 kHz PWM rates - a >1000x improvement over 10-bit PWM alternatives. Each 16-bit PWM has an independent timer, allowing phase-shifted RGBW outputs without CPU overhead. Combined with the CWG for half-bridge LED strings, the PIC16LF1575-E/ST drives 4-channel RGBW strips with 0.001% dimming steps from a 32 MHz core, eliminating the LED flicker and stair-stepping artifacts of lower-resolution MCUs.
Recommended
Complementary Waveform Motor / Solenoid Drive
The PIC16LF1575-E/ST's integrated Complementary Waveform Generator (CWG) produces complementary PWM outputs with programmable dead-band delay, ideal for half-/full-bridge motor and solenoid drive circuits. Combined with the 16-bit PWM for current setpoint control and 10-bit ADC for back-EMF sensing, the PIC16LF1575-E/ST replaces discrete analog drivers with a single-chip digital solution. The CWG operates without CPU intervention, freeing the 32 MHz core for higher-level control loops such as PI speed regulation and stall detection.
Recommended
Battery-Powered IoT Sensor Node
The PIC16LF1575-E/ST's 1.8V-3.6V operating range and low-power PIC16 architecture suit battery-powered IoT sensor nodes running from a single Li-ion or 2xAA cell. The 10-bit ADC reads sensor inputs (temperature, humidity, light) while the EUSART links to a sub-GHz radio module. Sleep current is sub-uA with full RAM retention, enabling multi-year battery life. The 14KB Flash supports OTA firmware update via the bootloader, while 1KB RAM is sufficient for typical sensor protocol stacks and sample buffering.
Recommended
Automotive Interior Lighting Control
The PIC16LF1575-E/ST's automotive -E temperature grade (-40C to +125C) and 14-TSSOP footprint suit automotive interior lighting modules such as ambient strip controllers, dome-light drivers, and door-handle illuminators. The four 16-bit PWMs drive RGBW LED channels with smooth 0.001% dimming, while the CWG drives a backlight boost converter with complementary switching. Combined with the EUSART for LIN-bus communication to the body control module, the PIC16LF1575-E/ST integrates an entire lighting node onto a single TSSOP.
Recommended
Digital Potentiometer Replacement Circuit
The PIC16LF1575-E/ST's 5-bit DAC combined with 16-bit PWM and 10-bit ADC can replace mechanical potentiometers in audio mixers, dimmer controls, and analog adjustment circuits. The 16-bit PWM (with low-pass filter) provides finer resolution than a 5-bit DAC alone, while the ADC monitors the resulting voltage for closed-loop regulation. The PIC16LF1575-E/ST's PPS feature remaps peripherals to any pin, simplifying PCB routing in mixed-signal designs.
Recommended
Industrial Control Loop Replacement
The PIC16LF1575-E/ST's 32 MHz CPU with hardware multiplier and 14KB Flash supports C-compiled PID, PI, and fuzzy-logic control loops for industrial valve, pump, and small-motor control. The 10-bit ADC samples process variables (pressure, flow, temperature) at up to 100 kSps, while the four 16-bit PWMs drive actuator setpoints with 0.001% resolution. Industrial-grade operating temperature, combined with the 14-TSSOP's compact footprint, suits DIN-rail mounted controllers and HMI panels.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1575-E/ST — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1575-I/ST | PIC16LF1575-I/ST | PIC16LF1574-I/ST | PIC16LF1554-I/ST | PIC16F1574-I/ST |
|---|---|---|---|---|---|---|
| Package | 14-TSSOP | 14-TSSOP (same) | 14-TSSOP (same) | 14-TSSOP (same) | 14-TSSOP (same) | 14-TSSOP (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 14 KB | 14 KB | 14 KB | 7 KB | 7 KB | 7 KB |
| RAM | 1 KB | 1 KB | 1 KB | 512 B | 256 B | 512 B |
| Operating Voltage | 1.8 V to 3.6 V | 2.5 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.5 V to 5.5 V |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| 16-bit PWM Channels | 4 | 4 | 4 | 2 | 2 | 2 |
| CWG (Complementary Waveform Generator) | Yes | Yes | Yes | No | No | No |
| Temperature Grade | Automotive (-40C to +125C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
Key Differentiators
- Four 16-bit PWMs with independent counters for high-resolution LED dimming (vs PIC16LF1574-I/ST)
- Integrated Complementary Waveform Generator (CWG) for half-/full-bridge motor drive (vs PIC16LF1554-I/ST)
- Automotive -40C to +125C temperature grade as standard (vs PIC16LF1575-I/ST)
- Low-voltage LF operation from 1.8V supports coin-cell and energy-harvesting designs (vs PIC16F1575-I/ST)
Design Notes
Place a 0.1 uF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 1) and a 10 uF bulk capacitor near the supply trace. The internal bandgap reference requires low-impedance supply to maintain ADC accuracy; supply ripple above 50 mVpk can couple into ADC readings. For battery-powered designs using the LF variant, route VDD through a ferrite bead to isolate from high-current digital switching nodes.
Use Peripheral Pin Select (PPS) to remap EUSART, PWM, and CWG outputs only to PPS-capable pins (RA0-RA5, RB2-RB7). The 14-TSSOP pinout has limited I/O; verify pin assignments before PCB layout to avoid costly rework. Place the IC close to the LED connector or motor connector to minimize trace inductance, which otherwise creates voltage transients on PWM edges that couple into the ADC.
Do not exceed 3.6V on VDD with the LF variant - permanent damage will occur. The PIC16LF1575-E/ST is NOT 5V tolerant. For 5V operation, choose the PIC16F1575-I/ST sibling instead. The RA3/MCLR pin requires a 10 kohm pull-up to VDD for normal operation; if left floating the device will randomly reset. PPS-mapped peripherals must be reconfigured after every reset.
Compliance Information
RoHS and REACH compliant per Microchip product page. The -E temperature grade (-40C to +125C) is intended for automotive but is not formally AEC-Q100 qualified unless specifically listed on the Microchip product page.
