PIC16LF1579-E/SO - 8-Bit 32MHz MCU 14KB Flash | Microchip
Teilenummer: PIC16LF1579-E/SO ✓ AktivPIC16LF1579-E/SO Übersicht
A PIC microcontroller is a Harvard-architecture 8-bit RISC MCU widely used in embedded designs for low-power, deterministic control. Positioned within the hierarchy PIC16 -> 8-bit MCU -> microcontroller -> embedded processor, the PIC16LF1579 sits in the 'LF' low-voltage sub-family optimized for 1.8V-3.6V operation, distinguished from the standard 'F' 5V variants. The 'L' prefix denotes extended low-voltage operation, the 'F' indicates Flash program memory, and the 'E' suffix indicates the extended operating temperature range (-40C to +125C).
Key features include 14KB Flash, 1KB RAM, four 16-bit PWMs with independent timers for high-resolution LED dimming or motor control, a 10-bit ADC, 5-bit DAC, configurable logic, CWG, EUSART, and PPS that allows remapping of digital peripherals to almost any I/O pin. The 20-SOIC package is a 300-mil wide surface-mount variant offering easier hand-soldering and breadboard prototyping than QFN alternatives.
The architecture combines a RISC core with nanoWatt XLP (eXtreme Low Power) technology, achieving deep-sleep currents in the microamp range. PPS adds layout flexibility - a key differentiator over fixed-pin competitors - while the four 16-bit PWMs enable precise dimming and timing without CPU intervention. The CWG module simplifies complementary outputs for half-bridge drivers.
Typical applications include high-resolution LED lighting controllers, DC-DC converter control, BLDC motor drives, battery-powered IoT sensor nodes, and consumer appliances requiring capacitive touch via mTouch. The wide 1.8V-3.6V range supports single-cell Li-ion or 2x AA battery topologies.
When designing with this part, ensure decoupling capacitors are placed within 3mm of the VDD pin and use PPS to route peripherals efficiently. For battery applications, leverage nanoWatt XLP modes (sleep, doze, idle) to extend runtime. The SOIC package requires standard 1.27mm SOIC footprint - no special land patterns needed.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, with cross-references to PIC16LF1574/1575/1559 family variants.
Drop-in-Alternativen für PIC16LF1579-E/SO – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
PIC16LF1578-E/SO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16LF1574-E/SO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16LF1575-E/SO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16LF1579-I/SO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16LF1559-E/SO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16F1579-I/SO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16LF1579-E/SO Grenzwerte & elektrische Eigenschaften
| Core | PIC 8-bit RISC |
| Family | PIC16F |
| CPU Speed | 32 MHz |
| Program Memory | 14 KB (8K x 14) Flash |
| RAM | 1 KB |
| ADC | 10-bit |
| DAC | 5-bit |
| PWM Channels | 4 x 16-bit |
| Comparators | Yes |
| EUSART | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Complementary Waveform Generator (CWG) | Yes |
| Versorgungsspannung | 1.8 V to 3.6 V |
| Betriebstemperatur | -40 C to +125 C (E suffix) |
| Gehäuse | 20-SOIC (7.50 mm width, 300-mil) |
| Montageart | Surface Mount |
| RoHS-Status | Compliant |
PIC16LF1579-E/SO Pin-Konfiguration
| Pin 1 | VDD — Positive power supply (1.8V to 3.6V) |
| Pin 2 | RA5 — Bidirectional I/O / analog input |
| Pin 3 | RA4 — Bidirectional I/O / analog input |
| Pin 4 | RA3 — Bidirectional I/O / analog input / MCLR |
| Pin 5 | RA2 — Bidirectional I/O / analog input |
| Pin 6 | RA1 — Bidirectional I/O / analog input / DAC output |
| Pin 7 | RA0 — Bidirectional I/O / analog input |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA7 — Bidirectional I/O / oscillator |
| Pin 10 | RA6 — Bidirectional I/O / oscillator |
| Pin 11 | RC0 — Bidirectional I/O / analog input |
| Pin 12 | RC1 — Bidirectional I/O / analog input |
| Pin 13 | RC2 — Bidirectional I/O / analog input |
| Pin 14 | RC3 — Bidirectional I/O / analog input |
| Pin 15 | RC4 — Bidirectional I/O |
| Pin 16 | RC5 — Bidirectional I/O |
| Pin 17 | RC6 — Bidirectional I/O / TX |
| Pin 18 | RC7 — Bidirectional I/O / RX |
| Pin 19 | RB7 — Bidirectional I/O / ICSP DAT |
| Pin 20 | RB6 — Bidirectional I/O / ICSP CLK |
Typische Anwendungen
PIC16LF1579-E/SO ist geeignet für 6 Anwendungs: High-Resolution LED Lighting Control, BLDC Motor Control, Battery-Powered IoT Sensor Nodes, DC-DC Converter Control Loops, Consumer Appliance Controls, Automotive Interior Lighting & HMI.
High-Resolution LED Lighting Control
The PIC16LF1579-E/SO is ideally suited for high-channel-count LED lighting controllers thanks to its four independent 16-bit PWMs with dedicated timers. Each PWM can run at a distinct frequency and duty cycle, enabling smooth 16-bit dimming on up to four LED strings without CPU intervention - critical for architectural lighting and RGBW color-mixing applications. The wide 1.8V-3.6V VDD range supports direct single-cell Li-ion or USB-powered LED drivers, while the CWG module simplifies complementary outputs for half-bridge LED driver topologies. Per Microchip's reference designs, a typical 4-channel LED dimmer uses one PWM per string, freeing the CPU for color-mixing algorithms, DMX-512 reception, or BLE control via PPS-mapped pins.
Empfohlen
BLDC Motor Control
For brushless DC (BLDC) motor control, the PIC16LF1579-E/SO combines four 16-bit PWMs, configurable logic, and the CWG (Complementary Waveform Generator) to drive 3-phase half-bridges with programmable dead-band. The high-resolution PWMs enable smooth torque control at low RPM and field-oriented control loops when paired with back-EMF sensing on the 10-bit ADC. Per Microchip AN1078 and AN885, this MCU family can implement sensorless BLDC control with just the on-chip comparators and ADC - no external position sensors required. The 1.8V-3.6V range supports compact battery-driven fans and drone motor controllers where space and weight matter.
Empfohlen
Battery-Powered IoT Sensor Nodes
The PIC16LF1579-E/SO is a strong fit for battery-powered IoT sensor nodes thanks to its 1.8V-3.6V VDD range, nanoWatt XLP technology with deep-sleep currents below 1uA, and 14KB Flash for BLE/Zigbee protocol stacks or LoRaWAN device drivers. The EUSART enables direct connection to wireless modules or sensors with serial interfaces, while PPS allows flexible PCB routing for antenna keepout zones. Per Microchip's power analysis, a typical sensor node using sleep mode with periodic ADC sampling can achieve years of battery life from a single CR2032 coin cell. The PIC16F1579-I/SO industrial version supports -40C to +85C for outdoor deployments.
Empfohlen
DC-DC Converter Control Loops
Digital DC-DC converter control using the PIC16LF1579-E/SO leverages its high-speed 10-bit ADC for voltage/current sensing and 16-bit PWMs for synchronous rectifier gate drive generation. The CWG module provides programmable dead-band insertion critical for synchronous buck/boost topologies to prevent shoot-through. Per Microchip AN1206, a digitally-controlled DC-DC converter using this MCU achieves sub-1% output regulation with adaptive voltage scaling. The 32MHz CPU speed allows 32kHz control loops with margin for housekeeping, while PPS simplifies layout by routing PWM outputs adjacent to gate-driver ICs.
Empfohlen
Consumer Appliance Controls
For consumer appliances such as coffee machines, washing machines, and air purifiers, the PIC16LF1579-E/SO provides the right mix of analog (10-bit ADC, 5-bit DAC, comparators) and digital (4x16-bit PWMs, EUSART, PPS) peripherals in a cost-effective 20-SOIC package. The mTouch capacitive sensing capability via the on-chip comparators enables sleek touch-button interfaces without external ICs, while the 14KB Flash fits typical appliance control firmware with LCD segment drivers. The wide temperature range (-40C to +125C) handles under-cabinet appliance environments.
Empfohlen
Automotive Interior Lighting & HMI
For automotive interior lighting, ambient lighting controllers, and human-machine interface (HMI) modules, the PIC16LF1579-E/SO offers four 16-bit PWMs for smooth RGBW ambient lighting with diagnostic feedback, plus EUSART for LIN bus communication. The extended -40C to +125C temperature grade handles cabin temperature swings. Per Microchip AN2288, the PPS feature simplifies PCB layout for automotive HMI boards with constrained form factors. For AEC-Q100 qualified automotive applications, designers should select the PIC16F1579-E/SO-Q1 automotive grade variant instead of this standard industrial part.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC16LF1579-E/SO – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC16LF1578-E/SO | PIC16LF1574-E/SO | PIC16LF1575-E/SO | PIC16LF1579-I/SO | PIC16LF1559-E/SO | PIC16F1579-I/SO |
|---|---|---|---|---|---|---|---|
| Package | 20-SOIC | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 14 KB | 7 KB (-50%) | 7 KB (-50%) | 14 KB | 14 KB | 7 KB (-50%) | 14 KB |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| PWM Channels | 4 x 16-bit | 4 x 16-bit | 3 x 16-bit (-25%) | 3 x 16-bit (-25%) | 4 x 16-bit | 2 x 10-bit (-50% channels and resolution) | 4 x 16-bit |
| Supply 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 | 2.5 V to 5.5 V |
| Operating Temperature | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +85 C | -40 C to +125 C | -40 C to +85 C |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
Wichtigste Unterscheidungsmerkmale
- Four 16-bit PWMs vs three on PIC16LF1574 (vs. PIC16LF1574-E/SO)
- 14KB Flash vs 7KB on PIC16LF1559 (vs. PIC16LF1559-E/SO)
- 1.8V low-voltage operation vs 2.5V on PIC16F1579 (vs. PIC16F1579-I/SO)
Designhinweise
Place a 100nF decoupling capacitor within 3mm of the VDD pin (pin 1) and a 10uF bulk capacitor near the SOIC package. For battery applications leveraging nanoWatt XLP modes, add a 1uF capacitor on the MCLR/RA3 pin to prevent false resets during sleep mode entry/exit. The PIC16LF1579's internal LDO requires adequate input capacitance - do not omit the bulk cap even for prototypes.
The 20-SOIC package uses a 300-mil (7.5mm) body width with 1.27mm pitch SOIC footprint - no special land patterns required. For PPS flexibility, leave at least 0.5mm between adjacent SOIC pads and signal traces to allow re-routing during development. Keep the ICSP pins (RB6/RB7) accessible for in-circuit programming; do not place them under BGA or dense connector arrays where probe access is blocked.
Do not exceed the maximum VDD of 3.6V - the LF variant is not 5V tolerant like the F variant, and applying 5V will permanently damage the device. When migrating from PIC16F1579 designs, verify that all signal inputs are within 3.6V. The PPS feature requires unlocking sequence in CONFIG register - forgetting this is a common reason prototypes fail to start.
Compliance-Informationen
RoHS compliant per Microchip product page. Industrial-grade (E suffix -40C to +125C), not AEC-Q100 qualified - select automotive-graded variants for AEC-Q100 applications.
