PIC16F1575-I/P - 8-Bit 32MHz 14KB Flash MCU with 16-bit PWM | Microchip
MPN： PIC16F1575-I/P ✓ 啟用中PIC16F1575-I/P 概覽
An 8-bit MCU is a microcontroller whose CPU and peripherals operate on an 8-bit data bus. The PIC16 family sits at the bottom of the Microchip MCU hierarchy: 8-bit MCU -> PIC16 core -> microcontroller -> embedded semiconductor. Microcontrollers integrate a CPU core, program memory, data memory, timers, analog converters and communication peripherals into one package, so a single device can replace a discrete CPU plus surrounding glue logic.
The PIC16F1575 belongs to the PIC16(L)F157X family, which the manufacturer describes as combining 16-bit PWM capability with analog peripherals. Four independent 16-bit PWM channels with dedicated timers deliver high resolution duty-cycle control, which is why this family targets LED lighting drivers, general illumination and motor control. A 5-bit DAC provides a simple analog output for set-point or bias generation, and the 10-bit ADC handles sensor acquisition with 1024 discrete steps.
Key features include 32 MHz operation from an internal 8 MHz oscillator with a 4x PLL, programmable brown-out detection, a 16-level deep sleep capability, and multiple serial peripherals such as UART, SPI and I2C with automatic peripheral pin-select. Flash program memory supports In-Circuit Serial Programming (ICSP) and the device can be configured through the Microchip MPLAB X toolchain and PICkit debuggers.
Typical applications include multi-channel LED dimming and RGB colour mixing, fan and small-motor speed control, industrial sensor conditioning, and cost-sensitive consumer products such as lighting ballasts, appliance controls and battery chargers.
A key design consideration is pin multiplexing: on this 14-pin device several I/O pins are shared with the analog inputs, comparators, PWM outputs and the MCLR function, so the pin-assignment table in the manufacturer datasheet must be reviewed before the PCB footprint is frozen.
This page combines manufacturer device information, distributor availability, drop-in alternatives in the same 14-pin DIP footprint, comparison tables and practical design notes so engineers can evaluate the PIC16F1575-I/P against neighbouring PIC16 devices without pulling the full datasheet apart first.
直接替換替代品，適用於 PIC16F1575-I/P — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16F1575-I/P （相同外形與佔位） — 差異在於 Package, ADC, DAC, Mounting Type, Program Memory (Flash).
PIC16F1574-I/P
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16F1573-I/P
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC16F1613-I/P
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16F18854-I/P
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC16F18855-I/P
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC16F1575-I/P 最大額定值與電氣特性
| Device Type | 8-Bit RISC Microcontroller (PIC16 core) |
| 最大時脈頻率 | 32 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Program Memory Type | Flash, In-Circuit Serial Programming (ICSP) |
| Data Memory (RAM) | 1 KB |
| ADC | 10-bit ADC |
| DAC | 1-channel 5-bit DAC |
| PWM Channels | 4 x 16-bit PWM with independent timers |
| 工作溫度範圍 | -40 C to +85 C (industrial grade) |
| 封裝 | 14-PDIP (through-hole), 14 pins |
| Program Memory Words | 8192 ROM words |
| Architecture | PIC16 8-bit RISC core |
| Internal Oscillator | Yes, with 4x PLL to 32 MHz |
| 安裝類型 | Through-hole (THT) |
PIC16F1575-I/P 腳位配置
| 腳位 1 | RA0/AN4/C12IN0-/MCLR — Port A bit 0, analog input AN4, comparator C1 input 0 minus, and multi-function reset input |
| 腳位 2 | RA1/AN5/C12IN1-/C2OUT — Port A bit 1, analog input AN5, comparator C1 input 1 minus, and comparator C2 output |
| 腳位 3 | RA2/AN6/VREF-/CVREF/C2IN+ — Port A bit 2, analog input AN6, negative voltage reference, comparator reference output and comparator C2 input plus |
| 腳位 4 | RA3/AN7/C1IN+ — Port A bit 3, analog input AN7, comparator C1 input plus |
| 腳位 5 | RC0/AN8/C1OUT/CLC1OUT — Port C bit 0, analog input AN8, comparator C1 output and CLC1 output |
| 腳位 6 | RC1/AN9/C1IN2-/CLC2OUT — Port C bit 1, analog input AN9, comparator C1 input 2 minus and CLC2 output |
| 腳位 7 | RC2/AN10/C2IN2-/CLC3OUT — Port C bit 2, analog input AN10, comparator C2 input 2 minus and CLC3 output |
| 腳位 8 | RC3/AN11/CLC4OUT — Port C bit 3, analog input AN11 and CLC4 output |
| 腳位 9 | RC4/AN12 — Port C bit 4, analog input AN12 |
| 腳位 10 | RC5/AN13 — Port C bit 5, analog input AN13 |
| 腳位 11 | VDD — Positive supply voltage |
| 腳位 12 | VSS — Ground reference |
| 腳位 13 | RA5/OSC1/CLKIN/C12IN3- — Port A bit 5, oscillator input or external clock input, comparator C1 input 3 minus |
| 腳位 14 | RA4/OSC2/CLKOUT/T1CKI/C12IN3+ — Port A bit 4, oscillator output or clock output, Timer1 clock input, comparator C1 input 3 plus |
典型應用
PIC16F1575-I/P 適用於 6 應用s: Multi-Channel LED Dimming and RGB Driver, Small Motor and Fan Speed Control, Industrial Sensor Conditioning and Data Acquisition, Appliance Control and User Interface, Battery Charger and Power Management Control, Programmable LED and Lighting Ballast Control.
Multi-Channel LED Dimming and RGB Driver
The PIC16F1575-I/P fits LED lighting because it delivers four independent 16-bit PWM channels, each with its own timer, which gives far finer duty-cycle resolution than the 8-bit PWM found in smaller PIC16 parts. At a 32 MHz maximum clock the timer resolution translates directly into dimming granularity, so a low percentage set-point still divides the load evenly across the string instead of blinking in coarse steps. In a typical RGB cove or architectural luminaire, three channels drive red, green and blue strings while the fourth channel is used for a white or status channel. The 5-bit DAC provides a trimmed colour-mixing set-point or driver current reference, and the 10-bit ADC samples a thermistor or ambient light sensor for auto dimming. Mounted in a 14-PDIP package, the device fits hand-assembled or low-volume luminaire electronics where surface-mount rework is undesirable.
推薦
Small Motor and Fan Speed Control
For fan, pump and small brushless-DC motor control, the PIC16F1575-I/P combines four 16-bit PWM outputs with a 32 MHz core, giving the control loop enough resolution to keep speed ripple low and audibly quiet. The high-resolution duty control replaces the coarse stepped drive of an 8-bit PWM, which matters directly for acoustic noise in small fans and for avoiding torque pulsation in a motor gearbox. Three PWM outputs can drive a three-phase or complementary bridge arrangement while the fourth provides an auxiliary gate-drive or braking chopper function. The 10-bit ADC closes the speed loop by sampling the sensor output, and the 5-bit DAC can generate a soft-start ramp reference or a bias level for the gate driver. The through-hole 14-PDIP package is a practical choice for appliance and HVAC controllers assembled on through-hole motherboards.
推薦
Industrial Sensor Conditioning and Data Acquisition
The PIC16F1575-I/P is a natural fit for industrial sensing nodes because it integrates a 10-bit ADC with a 5-bit DAC on the same die, allowing a single device to both measure a transducer and bias it. A typical pressure or level transmitter conditioning board uses the ADC to acquire a 0-5 V or 4-20 mA-derived signal, then applies digital filtering and linearisation in firmware before the result is transmitted. The four 16-bit PWM channels can drive a sensor excitation or reference channel where a modulated stimulus is needed to reject drift. Serial peripherals including UART, SPI and I2C let the same microcontroller report to a host or drive a local display, and the 32 MHz clock leaves enough headroom for calibration tables and digital filtering loops. The industrial -40 C to +85 C grade suits equipment installed outside conditioned enclosures.
推薦
Appliance Control and User Interface
Appliance controllers such as washing machines, coffee makers and small kitchen equipment often need a mix of discrete control and a simple human interface, and the PIC16F1575-I/P provides both on one die. The 10-bit ADC reads the water level, temperature or weight sensor, the four 16-bit PWM channels drive relays, solenoids, motor elements or indicator LEDs, and the 5-bit DAC generates a control reference or test point. Because the PIC16 core is well supported across the appliance industry, firmware can be reused across several model variants that differ mainly in pin mapping. The 14-pin PDP package fits the through-hole main boards still common in cost-driven appliance designs, while the 32 MHz clock supports debouncing, keypad scanning and a simple state-machine display refresh within a tight power budget.
推薦
Battery Charger and Power Management Control
In a small battery charger or power-path controller, the PIC16F1575-I/P handles the control loop for current and voltage regulation while its 14 KB of Flash holds the charging algorithm, state machine and fault handling. The 10-bit ADC monitors the battery voltage, charge current and temperature, and the high-resolution PWM outputs drive the charge FET and the input current-limit loop, where fine duty-cycle control reduces ripple on the battery and improves charge efficiency. The 5-bit DAC can supply a trimmed reference or a low-current fault indicator, and the UART output allows a charger to report state to a system controller or service tool. The through-hole package and industrial temperature grade suit power tools, e-bike accessories and portable medical or laboratory equipment built on assembled-through-hole boards.
推薦
Programmable LED and Lighting Ballast Control
Ballast and sign-driver electronics benefit from a microcontroller that can combine precise timing with analog regulation, and the PIC16F1575-I/P does both on a single chip. The four 16-bit PWM channels with independent timers are used to drive the switching outputs of the ballast stage, and the 10-bit ADC closes the regulation loop on the rectified bus voltage and the LED string current, keeping brightness constant as supply voltage and LED Vf shift with temperature. The 5-bit DAC generates the trimmed current or voltage set-point, and the flexible digital I/O with peripheral pin-select keeps the board to a small number of traces. Because flash program memory allows in-circuit serial programming, ballast vendors can tune the same hardware for different lamp types in end-of-line test, which considerably shortens product-variant bring-up compared with mask-programmed alternatives.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16F1575-I/P — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16F1574-I/P | PIC16F1573-I/P | PIC16F1613-I/P | PIC16F18854-I/P | PIC16F18855-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-PDIP | 14-PDIP - same | 14-PDIP - same | 14-PDIP - same | 14-PDIP - same | 14-PDIP - same |
| Maximum Clock Frequency | 32 MHz | 32 MHz | 32 MHz | 20 MHz | 20 MHz | 20 MHz |
| Flash Program Memory | 14 KB (8K x 14 words) | 14 KB (8K x 14 words) | 14 KB (8K x 14 words) | 14 KB (8K x 14 words) | 14 KB (8K x 14 words) | 14 KB (8K x 14 words) |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| PWM Channels | 4 x 16-bit PWM with independent timers | Fewer 16-bit PWM channels than the PIC16F1575 | Reduced 16-bit PWM channel count | Different PWM/analog peripheral mix | Different PWM/analog peripheral mix | Different PWM/analog peripheral mix |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Operating Temperature | -40 C to +85 C (industrial grade) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
主要差異化特點
- Full four-channel 16-bit PWM set in a 14-pin through-hole package (對比PIC16F1573-I/P)
- Highest clock rate in the drop-in set (對比PIC16F1613-I/P)
- On-chip 10-bit ADC and 5-bit DAC together with the comparator-based analog block (對比PIC16F1574-I/P)
- Flash program memory with in-circuit serial programming (對比PIC16F1573-I/P)
設計說明
The 14-PDIP footprint is generous but the pin multiplexing is not. Pins 1 to 4 are shared between Port A digital I/O, the analog inputs AN4 to AN7, the internal voltage reference outputs and the comparator inputs, and pins 13 and 14 double as the oscillator pins RA5/OSC1 and RA4/OSC2. Plan the board so that any crystal or high-speed clock routing does not run underneath or adjacent to sensitive analog inputs, and keep the MCLR pull-up resistor on pin 1 close to the device with a short, quiet ground return. Route the analog ground reference on pin 12 back to the ADC star point rather than into a switching current path.
Estimated: with VDD at 5 V and the core running at 32 MHz, the dynamic current is the dominant draw, so a design that leaves all four 16-bit PWM channels and the ADC running continuously should budget a supply that can deliver tens of milliamps per device plus peripheral load. Place a 100 nF ceramic decoupling capacitor at each VDD pin as close to the pin as possible with a short ground loop, and add a bulk 1 uF to 10 uF ceramic or low-ESR electrolytic near the device. Because four high-resolution PWM channels switching simultaneously can inject ripple onto the analog rails, star the VREF and comparator reference routing away from the PWM return paths.
A frequent design error is assuming the 16-bit PWM channels of the PIC16F1575 behave like the 8-bit PWM of smaller PIC16 parts. The PWM resolution changes duty-cycle granularity, so legacy firmware that assumed coarse step sizes will behave differently after a swap to this device. Another common mistake is using the -I industrial part in a design that assumes the extended -40 C to +125 C automotive range; that range is not provided by this ordering code. Finally, verify the oscillator configuration in firmware: switching between internal RC and an external crystal changes both timing accuracy and which pins are available for I/O.
合規資訊
The -I suffix indicates the industrial temperature grade, -40 C to +85 C, not an automotive qualification. Compliance declarations for this part were not listed on the manufacturer page retrieved, so RoHS, REACH, lead-free and halogen-free status are recorded as unknown rather than assumed.
