PIC16F1575-I/SL - 8-Bit MCU, 32MHz, 14KB Flash | Microchip
MPN: PIC16F1575-I/SL ✓ Hoạt độngPIC16F1575-I/SL Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), volatile data memory (RAM), and a mix of analog and digital peripherals. Within the broader taxonomy, the PIC16F1575 sits under 8-bit microcontrollers -> microcontrollers -> microprocessors & MCUs -> embedded processors -> semiconductors. Its enhanced mid-range (XLP) core supports a 49-instruction set with 16 hardware stack levels and deterministic interrupt latency, making it appropriate for real-time control tasks where predictability matters more than raw throughput.
Key differentiating features of the PIC16F1575-I/SL include its four 16-bit PWMs (each with dedicated timer base and period register, capable of edge-aligned and center-aligned modes), 10-bit ADC with acquisition timer, 5-bit DAC, comparator, EUSART, MSSP (SPI/I2C), two 8-bit timers, one 16-bit timer, and 12 I/O pins. The device also features the eXtreme Low Power (XLP) sleep mode drawing sub-microamp currents for battery-driven designs.
Architecturally, the PIC16F1575 employs a Harvard RISC architecture with separate program and data buses, allowing instruction fetch and data access in a single clock cycle. The on-chip high-precision 16 MHz internal oscillator can be used directly or scaled to 32 MHz via the 4x Phase-Locked Loop, removing the need for external crystals in cost-sensitive designs. Configurable logic cells (CLC), Complementary Waveform Generator (CWG), and Numerically Controlled Oscillator (NCO) provide synthesizable digital functions in hardware, freeing the core for higher-level tasks.
Typical applications include LED lighting drivers (where the four 16-bit PWMs allow individual channel intensity control for RGBW strips), stepper and brushed DC motor control, switch-mode power supply (SMPS) digital control loops, battery chargers, fan controllers, and general-purpose sensor interfacing. The 10-bit ADC and op-amp peripheral allow direct signal conditioning of low-level analog inputs without external components.
When designing with this MCU, pay particular attention to the maximum I/O current budget (per-pin and aggregate) and the recommended decoupling network (typically 100 nF plus 10 uF bulk near VDD). The internal oscillator is factory-calibrated to +/- 1 % across voltage and temperature, but a software PLL trim can tighten this further for time-sensitive protocols such as UART at high baud rates.
This page synthesizes distributor pricing, drop-in alternatives from the PIC16F157x and PIC16F152x families, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16F1575-I/SL — 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 PIC16F1575-I/SL (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Operating Temperature, ADC, Program Memory (Flash).
PIC16F1575T-I/SL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1575-E/SL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1574-I/SL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1575-I/SL Tỷ lệ tối đa & tính chất điện
| Core | PIC16 8-bit Enhanced Mid-range RISC |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| RAM | 1024 bytes |
| Data EEPROM | 0 bytes (Flash emulated) |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage | 2.3 V to 5.5 V |
| I/O Pins | 12 |
| ADC | 10-bit, up to 8 channels |
| PWM Channels | 4 x 16-bit (independent) |
| Timers | 2 x 8-bit, 1 x 16-bit |
| Communication | 1 x EUSART, 1 x MSSP (SPI/I2C) |
| Internal Oscillator | 16 MHz factory-calibrated (+/- 1 %) |
| PLL | 4x (yields 32 MHz from 8 MHz) |
| Hộp | 14-SOIC (SL), 150-mil, 3.90 mm body |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 1 (unlimited floor life) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16F1575-I/SL
| Chân 1 | VDD — Positive power supply (2.3 V to 5.5 V) |
| Chân 2 | RA5 — Bidirectional I/O / PWM4 output |
| Chân 3 | RA4 — Bidirectional I/O / PWM3 output |
| Chân 4 | RA3/MCLR — I/O or Master Clear (reset) input; tie to VDD via pull-up for normal operation |
| Chân 5 | RC5 — Bidirectional I/O / PWM2 output |
| Chân 6 | RC4 — Bidirectional I/O / PWM1 output |
| Chân 7 | RC3 — Bidirectional I/O / analog input |
| Chân 8 | RC2 — Bidirectional I/O / analog input |
| Chân 9 | RC1 — Bidirectional I/O / analog input |
| Chân 10 | RC0 — Bidirectional I/O / analog input |
| Chân 11 | RA2 — Bidirectional I/O / analog input |
| Chân 12 | RA1 — Bidirectional I/O / analog input |
| Chân 13 | RA0 — Bidirectional I/O / analog input |
| Chân 14 | VSS — Ground reference |
Ứng dụng tiêu biểu
PIC16F1575-I/SL phù hợp cho 6 Áp dụngs: LED Lighting Drivers, Stepper Motor Control, Switch-Mode Power Supply (SMPS) Digital Control, Battery Chargers and Power Banks, Sensor Interface and IoT Edge Nodes, Brushed DC Motor and Fan Control.
LED Lighting Drivers
The PIC16F1575-I/SL is purpose-built for LED lighting. Its four independent 16-bit PWMs each drive a channel with up to 16-bit duty cycle resolution (>65 000 steps), eliminating flicker and supporting smooth color mixing on RGBW strips. The internal 32 MHz clock and 10-bit ADC allow closed-loop current regulation through a sense resistor and op-amp front end, while the XLP sleep mode draws sub-microamp standby current for Always-on smart-bulb designs.
Được đề xuất
Stepper Motor Control
Stepper drives need precise, high-resolution PWM phase generation. The PIC16F1575-I/SL delivers four 16-bit PWMs that can be software-interleaved to generate microstepping waveforms at 1/256 step resolution. Its 32 MHz CPU provides ample headroom for acceleration/deceleration ramps, while the 10-bit ADC monitors back-EMF for stall detection. The Complementary Waveform Generator (CWG) hardware IP supports dead-band insertion for half-bridge drivers.
Được đề xuất
Switch-Mode Power Supply (SMPS) Digital Control
Digital SMPS control loops benefit from the PIC16F1575-I/SL's 4 x 16-bit PWMs (each independently triggerable), 10-bit ADC with dedicated acquisition timer, and on-chip op-amp peripheral. The MCU can implement peak-current-mode control of a buck/boost/SEPIC topology at switching frequencies up to 1 MHz when each PWM is paired with the high-speed ADC. The 32 MHz CPU executes the PID compensator in well under 1 us, keeping control-loop latency well within typical 10 us target.
Được đề xuất
Battery Chargers and Power Banks
For single-cell Li-ion/LiFePO4 chargers, the PIC16F1575-I/SL runs the CC/CV algorithm, samples charge current with its 10-bit ADC, and modulates a synchronous buck through a 16-bit PWM. Its wide 2.3-5.5 V operating range allows direct connection to the USB input rail without a separate LDO. The XLP sleep mode drops quiescent current below 1 uA, preserving battery shelf life when the host is unplugged.
Được đề xuất
Sensor Interface and IoT Edge Nodes
IoT edge nodes benefit from the PIC16F1575-I/SL's low-power sleep, 10-bit ADC for analog sensors, MSSP for SPI/I2C sensor buses, and EUSART for UART-linked radios. The Core Independent Peripherals (CIPs) allow sensor polling and threshold-triggered wake-up without CPU involvement, holding average current in the single-digit microamp range. The 14 KB Flash accommodates small TLS or LoRaWAN-style protocol stacks.
Được đề xuất
Brushed DC Motor and Fan Control
The PIC16F1575-I/SL drives brushed DC motors and fans with closed-loop speed regulation. A 16-bit PWM sets the power-stage duty, the 10-bit ADC reads tachometer or back-EMF, and the 32 MHz core executes the PID loop in microseconds. The hardware CWG block generates complementary drive signals with programmable dead-time, reducing switching losses in half-bridge drivers. The 14-SOIC footprint fits inside the motor housing.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F1575-I/SL — 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 | PIC16F1575T-I/SL | PIC16F1575-E/SL | PIC16F1574-I/SL | PIC16F1575-E/ST | PIC16F1574-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC (SL) | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | TSSOP-14 - different footprint | PDIP-14 - through-hole, different footprint |
| Flash Memory | 14 KB | 14 KB | 14 KB | 7 KB (-50 %) | 14 KB | 7 KB (-50 %) |
| RAM | 1024 B | 1024 B | 1024 B | 512 B (-50 %) | 1024 B | 512 B (-50 %) |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| 16-bit PWM Channels | 4 | 4 | 4 | 4 | 4 | 4 |
| Operating Temperature | -40 to +85 C | -40 to +85 C | -40 to +125 C (Extended) | -40 to +85 C | -40 to +125 C (Extended) | -40 to +85 C |
| ADC | 10-bit, 8 ch | 10-bit, 8 ch | 10-bit, 8 ch | 10-bit, 8 ch | 10-bit, 8 ch | 10-bit, 8 ch |
Bảo phân biệt quan trọng
- Four independent 16-bit PWMs in a 14-pin package (vsPIC16F1455-I/SL)
- Same-package Flash density upgrade path (vsPIC16F1574-I/SL)
- Industrial vs Extended temperature variants available (vsPIC16F1575-I/SL vs PIC16F1575-E/SL)
Ghi chú thiết kế
Place a 100 nF ceramic decoupling capacitor as close as possible to the VDD pin (pin 1) with a short trace to the VSS ground pour. Add a bulk 10 uF tantalum or ceramic near the MCU for switching transient support. The PIC16F1575's internal voltage regulator requires both capacitors within 5 mm of the package to keep VDD core ripple below 50 mVpp during PWM transitions.
The 14-SOIC package has a thermal pad requirement of roughly 1 square inch of copper pour on VDD/VSS layers to dissipate ~0.5 W under worst-case CPU+ADC+all-PWM operation. Route all PWM outputs away from analog ADC inputs to minimize digital crosstalk, and place a ground guard ring around the MCLR pin to suppress ESD coupling into the reset line. Keep traces under the package short - the SOIC lead inductance affects signal integrity above 50 MHz.
Do not leave the MCLR/RA3 pin floating. A 10 kohm pull-up to VDD is required for normal operation; without it, the part will randomly enter reset under noisy conditions. When using the internal oscillator, set the OSCCON and PLL configuration bits correctly - failing to enable the 4x PLL results in 8 MHz operation, halving PWM frequency and ADC throughput. Finally, never write to Flash while the ADC is sampling on the same bank; this can inject noise into the conversion.
Thông tin tuân thủ
RoHS compliant and lead-free per Microchip product page; the SL package is MSL-1 rated. Not AEC-Q100 qualified - automotive customers should validate against the PIC16F1xxx automotive-grade roadmap.
