PIC16F1579-I/GZ - 8-bit MCU 32MHz 14KB Flash 20-UQFN | Microchip
MPN: PIC16F1579-I/GZ ✓ Hoạt độngPIC16F1579-I/GZ Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and peripherals on one die. The 8-bit PIC16 family uses a RISC-based Harvard architecture with separate program and data buses, allowing instruction fetch and data access to occur in parallel. Within the broader PIC taxonomy, the PIC16F157x sits in the mid-range "plus" tier optimized for motor, lighting, and power-conversion control where 16-bit PWM resolution is required.
Key features include 14 KB Flash, 1 KB RAM, four 16-bit PWMs with independent timers, a 10-bit ADC, 32 MHz internal oscillator, and an operating voltage range of 2.3 V to 5.5 V. The four 16-bit PWMs (vs. 10-bit PWM on legacy PIC16) deliver sub-microsecond pulse resolution, critical for dimmable LED lighting and switch-mode power supply control loops.
The PIC16F1579 uses the enhanced mid-range core (49 instruction set) with a 16-level hardware stack and a configurable 32 kHz to 32 MHz internal oscillator. The 20-pin UQFN package with exposed pad provides low thermal resistance (~30 C/W typical) for surface-mount designs, while 4 KB of internal SRAM is not present on this part (1 KB). On-chip peripherals include Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), Numerically Controlled Oscillator (NCO), and Zero-Cross Detection (ZCD) blocks.
Typical applications include LED lighting and color-mixing drivers, switch-mode power supply controllers, battery chargers, digital fans, and low-end motor control. The four independent 16-bit PWMs make it particularly well suited to full-bridge and half-bridge topologies where complementary PWM outputs and dead-band control are required.
When designing with the PIC16F1579, pay attention to the UQFN exposed pad - it must be soldered to the PCB ground plane for electrical and thermal performance. Decouple VDD with a 100 nF ceramic capacitor placed within 3 mm of the pin. The 32 MHz maximum frequency requires VDD >= 2.5 V; at lower voltages the internal oscillator frequency is limited.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16F1579-I/GZ — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16F1579-I/GZ (cùng hình factor và footprint) — khác nhau ở Package, ADC, Core Architecture, Program Memory (Flash), I/O Pins.
PIC16F1578-I/GZ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1579-I/GZVAO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1509T-I/GZ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1509-I/GZ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1579-E/GZ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1579-I/GZ Tỷ lệ tối đa & tính chất điện
| Product Type | 8-bit Microcontroller (MCU) |
| Family | PIC16F157x |
| Core | Enhanced Mid-Range 8-bit PIC |
| Tần số xung maksimum | 32 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data Memory (RAM) | 1 KB |
| ADC | 10-bit |
| PWM Channels | 4 x 16-bit (independent timers) |
| Operating Voltage Range | 2.3 V to 5.5 V |
| Hộp | 20-UQFN (4x4 mm) with Exposed Pad |
| Kiểu lắp đặt | Surface Mount |
| Khoảng nhiệt độ hoạt động | -40C to +85C (Industrial -I grade) |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân PIC16F1579-I/GZ
| Chân 1 | RA5 — Digital I/O / analog input |
| Chân 2 | RA4 — Digital I/O / analog input |
| Chân 3 | RA3 — Digital I/O / MCLR input |
| Chân 4 | RA2 — Digital I/O / analog input |
| Chân 5 | RA1 — Digital I/O / analog input / ICSPCLK |
| Chân 6 | RA0 — Digital I/O / analog input / ICSPDAT |
| Chân 7 | VSS — Ground |
| Chân 8 | RC7 — Digital I/O |
| Chân 9 | RC6 — Digital I/O |
| Chân 10 | RC5 — Digital I/O |
| Chân 11 | RC4 — Digital I/O |
| Chân 12 | RC3 — Digital I/O / analog input |
| Chân 13 | RC2 — Digital I/O / analog input |
| Chân 14 | RC1 — Digital I/O / analog input |
| Chân 15 | RC0 — Digital I/O / analog input |
| Chân 16 | VSS — Ground (alt) |
| Chân 17 | RB7 — Digital I/O |
| Chân 18 | RB6 — Digital I/O |
| Chân 19 | RB5 — Digital I/O / analog input |
| Chân 20 | VDD — Positive supply voltage |
| Chân EP | EP — Exposed thermal pad - must be soldered to ground plane |
Ứng dụng tiêu biểu
PIC16F1579-I/GZ phù hợp cho 6 Áp dụngs: LED Lighting and Color-Mixing Drivers, Switch-Mode Power Supply (SMPS) Controllers, Battery Charging and Power Management, Digital Fan and Pump Speed Control, Hobbyist and Educational Development Platforms, Industrial Sensor Signal Conditioning.
LED Lighting and Color-Mixing Drivers
The PIC16F1579-I/GZ is purpose-built for LED lighting. Its four independent 16-bit PWMs (vs. legacy 10-bit) deliver ~64x finer duty-cycle resolution, enabling smooth dimming curves without visible flicker and precise color-mixing across RGBW channels. Each PWM has its own timer, so multiple LED strings can be driven with phase-shifted carriers to spread EMI. The 32 MHz core runs control firmware in real time while the CWG peripheral generates complementary outputs for totem-pole drivers. Place the IC close to the LED MOSFETs with 100 nF decoupling within 3 mm of VDD.
Được đề xuất
Switch-Mode Power Supply (SMPS) Controllers
For SMPS applications, the PIC16F1579-I/GZ's four 16-bit PWMs and CWG peripheral make it ideal for digital control of buck, boost, half-bridge, and full-bridge converters. Sub-microsecond pulse resolution enables tight regulation loops at switching frequencies up to several hundred kHz. The 14 KB Flash accommodates PFC plus main-loop firmware, while the CWG dead-band control protects half-bridge switches from shoot-through. The 32 MHz instruction rate executes control loops in well under 1 us, leaving bandwidth for housekeeping and communication.
Được đề xuất
Battery Charging and Power Management
The PIC16F1579-I/GZ suits battery-charger designs that need precise CC/CV profile control. Its 10-bit ADC reads battery voltage and current with adequate resolution for Li-ion and lead-acid chemistries, while the four 16-bit PWMs drive synchronous-rectifier MOSFETs or a PFC front end. 14 KB Flash fits standard charge-profile state machines plus optional SMBus / I2C interface code. Operating voltage 2.3 V to 5.5 V is compatible with single-cell Li-ion and 5 V system rails.
Được đề xuất
Digital Fan and Pump Speed Control
The PIC16F1579-I/GZ is well suited to closed-loop fan and pump speed controllers. Its four 16-bit PWMs generate variable-frequency drive signals for BLDC or brushed motors, while the 10-bit ADC reads tachometer / Hall-sensor feedback. The enhanced mid-range core runs the speed-control loop deterministically at 32 MHz, and 14 KB Flash holds look-up tables for sensorless start-up ramps. Industrial -I grade operates from -40 C to +85 C, suitable for fan trays and pump controllers in demanding thermal environments.
Được đề xuất
Hobbyist and Educational Development Platforms
The PIC16F1579-I/GZ makes a good educational MCU thanks to its 20-UQFN (4x4 mm) footprint, 32 MHz speed, four 16-bit PWMs, and 10-bit ADC exposed on a beginner-friendly pin map. With 14 KB Flash and 1 KB RAM, students can experiment with PWM generation, ADC sampling, and interrupt-driven state machines. MPLAB X IDE with XC8 compiler is free, and the PICkit 4 programmer/debugger works out of the box. The exposed thermal pad requires careful reflow but breakout boards are widely available.
Được đề xuất
Industrial Sensor Signal Conditioning
The PIC16F1579-I/GZ handles industrial sensor-signal-conditioning tasks where PWM drives need to be synchronized with ADC sampling. Its CWG, NCO, and ZCD peripherals support zero-crossing detection for AC-line-synchronized sensors, while the four 16-bit PWMs drive excitation sources for bridge-type transducers. 14 KB Flash supports calibration look-up tables for thermocouple, RTD, or strain-gauge linearization. Industrial -I temperature range covers most factory environments, and the 2.3 V to 5.5 V supply range accepts common 3.3 V and 5 V rails.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F1579-I/GZ — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16F1578-I/GZ | PIC16F1509T-I/GZ | PIC16F1509-I/GZ | PIC16F1579-E/GZ | PIC16F1579-I/GZVAO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-UQFN (4x4) | 20-UQFN (4x4) - same | 20-UQFN (4x4) - same | 20-UQFN (4x4) - same | 20-UQFN (4x4) - same | 20-UQFN (4x4) - same |
| Flash | 14 KB | 7 KB (-50%) | 8 KB (-43%) | 8 KB (-43%) | 14 KB (same) | 14 KB (same) |
| RAM | 1 KB | 1 KB (same) | 1 KB (same) | 1 KB (same) | 1 KB (same) | 1 KB (same) |
| Maximum Clock Frequency | 32 MHz | 32 MHz | 20 MHz (-37%) | 20 MHz (-37%) | 32 MHz | 32 MHz |
| PWM Resolution | 16-bit | 16-bit (same) | 10-bit (coarser) | 10-bit (coarser) | 16-bit (same) | 16-bit (same) |
| PWM Channels | 4 | 4 | 4 | 4 | 4 | 4 |
| Operating Temperature Range | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (Automotive) | -40C to +125C (Automotive) |
| Unit Price (qty-1) | $1.55 | ~$1.40 | ~$1.30 | ~$1.30 | ~$1.85 | ~$1.95 |
Bảo phân biệt quan trọng
- Four 16-bit PWMs with independent timers (vsPIC16F1509T-I/GZ)
- Largest Flash memory in 20-pin PIC16F157x family (vsPIC16F1578-I/GZ)
- Industrial temperature range on -I grade (vsPIC16F1579-E/GZ)
Ghi chú thiết kế
The PIC16F1579-I/GZ uses a 20-UQFN package with an exposed thermal pad. The EP must be soldered to a PCB ground plane for both electrical grounding and thermal dissipation. Vias-in-pad (filled and capped) under the EP are recommended to conduct heat to inner copper layers. Place a 100 nF ceramic decoupling capacitor within 3 mm of the VDD pin (pin 20) and a 10 uF bulk capacitor nearby. Keep switching traces short and away from the analog ADC inputs.
The maximum 32 MHz clock requires VDD >= 2.5 V; below this threshold the internal oscillator derates to 16 MHz or lower. Do not assume 32 MHz at 2.3 V operation. Also note that the PIC16F1579 has 14 KB Flash (8K x 14 words) but only 1 KB RAM, NOT 4 KB as on some earlier PIC16F1xxx parts. Verify linker settings if migrating from a similar PIC. The ICSP programming pins (RA0/ICSPDAT, RA1/ICSPCLK) must be accessible for in-circuit debugging.
When routing the 16-bit PWM outputs to MOSFET gate drivers, keep traces short and use a gate resistor (10-100 ohm) to dampen ringing. The four PWMs are independent and can be phase-shifted to spread EMI spectrum - configure each PWM with a different timer prescaler or phase offset. The CWG peripheral can generate complementary outputs with programmable dead-band; enable dead-band for half-bridge and full-bridge topologies to prevent shoot-through.
Thông tin tuân thủ
RoHS and lead-free per Microchip product page. -I grade is industrial (-40 C to +85 C); -E grade is the automotive (-40 C to +125 C) variant.
