PIC16F1575-I/ST - 8-bit MCU, 14KB Flash, 16-bit PWM, 14-TSSOP | Microchip
料号： PIC16F1575-I/ST ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.47 | $2.47 |
| 10 | $2.32 | $23.20 |
| 100 | $2.1 | $210.00 |
| 500 | $1.85 | $925.00 |
| 1,000 | $1.62 | $1,620.00 |
PIC16F1575-I/ST 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, RAM, and peripherals such as timers, ADCs, and communication interfaces into one device. The PIC16F1575 belongs to Microchip's enhanced mid-range PIC16F1xxx family, which sits architecturally above baseline PIC10/12/16 cores and below the 16-bit PIC24/dsPIC families. Its defining peripheral set combines four 16-bit Pulse-Width Modulation (PWM) channels with complementary outputs and a 10-bit Analog-to-Digital Converter (ADC), enabling mixed-signal and precision-power applications from a small-footprint device.
Key features of the PIC16F1575-I/ST include four independent 16-bit PWMs with dedicated timers, a 10-bit ADC with up to 12 channels (part-dependent), 1KB SRAM, 256 bytes of EEPROM, configurable internal oscillator, and nanoWatt XLP extreme-low-power technology for sleep currents in the nanoampere range. The integrated Core Independent Peripherals (CIPs) - including the 16-bit PWM, Complementary Waveform Generator (CWG), and Numerically Controlled Oscillator (NCO) - allow deterministic hardware-driven tasks without CPU intervention, reducing firmware complexity and power consumption.
The PIC16F1575-I/ST is engineered for applications where high-resolution PWM is required in a compact 14-pin footprint. Typical uses include LED lighting drivers, digital power conversion, motor control loops, and battery-powered sensor nodes. Its 16-bit PWM resolution enables fine-grained dimming curves in lighting and tight regulation in switch-mode power supplies, while the 10-bit ADC supports closed-loop current and voltage sensing for adaptive control.
When designing with this MCU, use the MPLAB X IDE and the free MPLAB Code Configurator (MCC) plug-in to generate peripheral initialization code. Place a 100 nF decoupling capacitor close to VDD, and configure the configuration bits for the desired oscillator source and watchdog timer behavior. Avoid driving LEDs directly from logic pins without current-limiting resistors; use a MOSFET driver or the integrated PWM to control external switching transistors for higher-current loads.
This page combines distributor pricing, drop-in alternatives in the same 14-TSSOP footprint, and practical design notes that go beyond what the manufacturer datasheet alone provides, helping engineers select, source, and integrate the PIC16F1575-I/ST with confidence.
直接替换替代料： PIC16F1575-I/ST ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16F1575-I/ST （相同外形与封装尺寸） ——差异在于 Package, Program Memory (Flash), Core Architecture, ADC, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
PIC16F1574-I/ST
✅ 直接替换✓ 有现货
$0.76 / 个
查看数据手册 →PIC16F1575-E/ST
✅ 直接替换✓ 有现货
$1.05 / 个
查看数据手册 →PIC16F1575T-I/ST
✅ 直接替换✓ 有现货
$1.05 / 个
查看数据手册 →PIC16F1575T-E/ST
✅ 直接替换📋 参考替代料（不在目录中）
PIC16F15225-I/ST
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$0.55 / 个
查看数据手册 →PIC16F15224-I/ST
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$0.72 / 个
查看数据手册 →PIC16F1575-I/ST 最大额定值与电气特性
| Core Architecture | PIC16 (8-bit enhanced mid-range) |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| RAM | 1 KB (1024 bytes) |
| EEPROM | 0 bytes (no data EEPROM) |
| 16-bit PWM Channels | 4 with independent timers |
| ADC | 10-bit |
| 封装 | 14-pin TSSOP (ST) |
| Operating Voltage (VDD) | 1.8 V to 5.5 V |
| 工作温度 | -40 C to +85 C (Industrial) |
| Internal Oscillator | Yes (configurable) |
| 安装类型 | Surface Mount |
| MSL 等级 | 1 |
| RoHS 状态 | Compliant |
| 无卤 | Compliant |
PIC16F1575-I/ST 引脚配置
| 引脚 1 | RA5 — Bidirectional I/O / ICVP programming data |
| 引脚 2 | RA4 — Bidirectional I/O |
| 引脚 3 | RA3 — Bidirectional I/O / MCLR (reset input) |
| 引脚 4 | RA2 — Bidirectional I/O |
| 引脚 5 | RA1 — Bidirectional I/O / ICSPCLK |
| 引脚 6 | RA0 — Bidirectional I/O |
| 引脚 7 | VSS — Ground reference |
| 引脚 8 | RA7 — Bidirectional I/O / OSC1 (crystal) |
| 引脚 9 | RA6 — Bidirectional I/O / OSC2 (crystal) |
| 引脚 10 | RC5 — Bidirectional I/O / PWM output |
| 引脚 11 | RC4 — Bidirectional I/O / PWM output |
| 引脚 12 | RC3 — Bidirectional I/O / PWM output |
| 引脚 13 | RC2 — Bidirectional I/O / PWM output |
| 引脚 14 | VDD — Positive supply (1.8 V to 5.5 V) |
典型应用
PIC16F1575-I/ST 适用于 6 应用s: Dimmable LED Lighting Driver, Digital Switch-Mode Power Supply (SMPS), Battery-Powered IoT Sensor Node, Small DC Motor Speed Control, Consumer White Goods and Home Appliances, Hobby Electronics and Maker Projects.
Dimmable LED Lighting Driver
The PIC16F1575-I/ST fits dimmable LED lighting because four 16-bit PWMs deliver the high duty-cycle resolution needed for smooth logarithmic dimming curves, while the 10-bit ADC closes the loop on LED current sensing. With the integrated Complementary Waveform Generator (CWG), the MCU drives a MOSFET half-bridge with hardware dead-band control, eliminating shoot-through losses. VDD at 3.3 V or 5 V directly powers the logic side, and 32 MHz CPU clock keeps color-mixing math responsive even with multiple PWM channels updating in real time.
推荐
Digital Switch-Mode Power Supply (SMPS)
In digital SMPS designs, the PIC16F1575-I/ST acts as the primary controller, with its 16-bit PWM generating the switching frequency up to several hundred kHz and the 10-bit ADC sampling the output voltage and current at each switching cycle. The 1KB RAM buffers ADC sample rings and state-machine variables without overflowing. The 1.8 V to 5.5 V supply range lets the MCU run directly from an auxiliary winding, simplifying bootstrap design compared with parts needing 3.3 V regulation.
推荐
Battery-Powered IoT Sensor Node
The PIC16F1575-I/ST is well suited to battery-powered sensor nodes thanks to nanoWatt XLP extreme-low-power technology, which delivers sleep currents in the nanoampere range while RAM retention is preserved. The 1KB RAM is enough for a few hundred sensor readings plus a state machine, while the 14KB Flash supports an MQTT-SN or LoRaWAN stack fragment. The MCU wakes on an interrupt, samples a sensor via the 10-bit ADC, transmits, and returns to deep sleep, all within a 14-pin TSSOP footprint smaller than a fingernail.
推荐
Small DC Motor Speed Control
For DC and BLDC motor control at low to moderate power, the PIC16F1575-I/ST provides a 16-bit PWM for fine speed resolution, complementary outputs for half-bridge drive, and a 10-bit ADC for back-EMF or current feedback. The 32 MHz instruction cycle keeps the control loop tight at 10 kHz or higher update rates. The 14-pin TSSOP package fits on space-constrained PCBAs such as drone gimbal controllers or small appliance motor boards.
推荐
Consumer White Goods and Home Appliances
The PIC16F1575-I/ST delivers the right balance of price, peripherals, and package size for white-goods control boards such as coffee makers, rice cookers, and small kitchen appliances. The 16-bit PWM drives a heating element or induction coil with precise duty control, while the 10-bit ADC reads thermistor or weight sensor inputs. Industrial temperature rating (-40C to +85C) covers typical kitchen and laundry environments, and the TSSOP-14 footprint is easy to hand-solder or rework during prototyping.
推荐
Hobby Electronics and Maker Projects
The PIC16F1575-I/ST is a strong choice for hobbyists and makers because of its low price (around $2.47 at qty 1), free MPLAB X IDE support, and broad library of community examples on GitHub and the Microchip Developer Help library. The 14KB Flash comfortably fits Arduino-style sketches ported to XC8, while the 16-bit PWMs give hobby projects smoother servo motion or audio synthesis than the 8/10-bit PWMs of older PIC16 baseline parts. The TSSOP-14 footprint works with breakout boards and breadboard adapters.
推荐
推荐产品汇总
工程参考数据： PIC16F1575-I/ST ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16F1574-I/ST | PIC16F1575-E/ST | PIC16F1575T-I/ST | PIC16F1575T-E/ST | PIC16F15225-I/ST | PIC16F15224-I/ST |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-TSSOP | 14-TSSOP - same | 14-TSSOP - same | 14-TSSOP - same | 14-TSSOP - same | 14-TSSOP - same | 14-TSSOP - same |
| Flash Memory | 14 KB | 7 KB | 14 KB | 14 KB | 14 KB | 3.5 KB | 2 KB |
| 16-bit PWM Channels | 4 | 4 | 4 | 4 | 4 | 2 | 2 |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
关键差异点
- Four 16-bit PWMs in 14-TSSOP footprint （对比 PIC16F1574-I/ST)
- Industrial -40C to +85C baseline （对比 PIC16F1575-E/ST)
- Mature 16-bit PWM IP and CWG peripheral （对比 PIC16F15224-I/ST)
- Wide 1.8 V to 5.5 V VDD （对比 PIC16F1574-I/P (PDIP))
设计说明
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 14) of the PIC16F1575-I/ST, and add a bulk capacitor (4.7 uF to 10 uF) on the same power rail if the design uses PWM-driven MOSFETs that inject switching noise. The MCU's wide 1.8 V to 5.5 V supply range lets you share the same rail as the load in many cases, but keep the analog VDD pin (if routed separately) decoupled independently to preserve ADC accuracy.
Configure the MCLR function on pin 3 (RA3) before connecting external circuitry. If RA3 is used as a regular GPIO, MCLR must be disabled in the configuration bits, otherwise an unintended reset can occur. Likewise, leave the ICSP pins (RA0/RA1) accessible on the PCB for in-circuit programming - either as test points, a 6-pin header, or pogo-pad landings for production programming.
Route the crystal traces (RA6/RA7) as short and symmetrical as possible, with the load capacitors (typically 15-33 pF) placed within 5 mm of the MCU pins. If using the internal oscillator instead, RA6 and RA7 can be repurposed as GPIO, freeing two I/O lines for PWM output or ADC input. Keep high-speed switching traces (PWM outputs to MOSFET gates) away from the crystal traces to avoid injected noise.
At 32 MHz CPU clock and 5.5 V VDD, the PIC16F1575-I/ST draws roughly 5 to 8 mA active. Estimated: at full load with all four PWMs and the ADC active, power dissipation stays below 50 mW in the 14-pin TSSOP, which has theta_JA around 100 C/W - junction temperature rises by only ~5 C above ambient. No heatsink is needed; standard TSSOP PCB copper is sufficient.
合规信息
RoHS compliant and Halogen Free per GlobalSpec datasheet cross-reference record. MSL-1 moisture sensitivity rating. Not AEC-Q100 qualified - for automotive designs, select PIC16F1575-E/ST (extended temp) or a Q-graded variant from Microchip's automotive catalog.