PIC12F1571-E/P - 8-bit MCU, 32MHz, 1.75KB Flash, 16-bit PWM | Microchip
MPN: PIC12F1571-E/P ✓ فعالPIC12F1571-E/P جائزہ
An 8-bit microcontroller (MCU) is a small, self-contained computing device built around an 8-bit data bus, integrating a CPU, non-volatile program memory (Flash), volatile data memory (RAM), and a set of peripherals (timers, ADC, communication interfaces) onto a single silicon die. Within the broader taxonomy, the PIC12F1571 sits at the 8-bit MCU level, under the microcontroller family, which itself belongs to the embedded computing category of semiconductors. Its primary role is to provide deterministic, low-power digital control in cost- and space-constrained applications where a full 32-bit MCU would be overkill.
Key differentiating features of the PIC12F1571 include its 16-bit PWM resolution (vs the 10-bit PWM typical of older PIC10/PIC12 families), the integrated CLC module for combinational/sequential logic without external gates, the on-chip 5-bit DAC, and the core-independent peripherals (CIPs) that operate without CPU intervention. The device supports an operating voltage range of 1.8V to 5.5V (PIC12F1571 variant) and includes an internal 31kHz oscillator plus a 16MHz high-speed internal oscillator, reducing external component count.
Architecturally, the PIC12F1571 uses a Harvard-style RISC core with a single accumulator (WREG) and a 15-bit program counter, executing most instructions in a single clock cycle (4 system clocks per instruction cycle). The enhanced mid-range instruction set provides 49 instructions with hardware multiply support. The CWG (Complementary Waveform Generator) module produces non-overlapping complementary outputs suitable for driving half-bridges in LED lighting or motor control stages.
Typical applications include LED lighting color-mixing and dimming, stepper motor and DC motor control, ceiling-fan and fan-controller electronics, battery chargers, power-conversion auxiliary controllers, and general-purpose 8-bit logic replacement. The 8-pin PDIP package makes it ideal for breadboarding, hobby projects, and through-hole industrial assemblies where hand-soldering or socketed MCU replacement is required.
When designing with this part, note that only 6 of the 8 pins are usable as I/O (RA0-RA5); RA6 and RA7 are absent on this 8-pin device. The ICSP (In-Circuit Serial Programming) pins (ICSPCLK/ICSPDAT) share physical pins with RA0/RA1, so designers must provision isolation resistors if in-circuit programming is required in the final assembly.
This page synthesizes distributor pricing, parametric alternatives, and practical design considerations not collected in any single manufacturer document, giving engineers a single reference for selecting and sourcing the PIC12F1571-E/P.
کے لیے ڈراپ اِن متبادل PIC12F1571-E/P — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC12F1571-E/P (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Mounting Type, ADC, Core Architecture, Operating Temperature.
PIC12F1571-I/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12F1572-E/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12F1571-E/P زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC12 enhanced mid-range 8-bit RISC |
| Program Memory (Flash) | 1.75 KB (1K x 14) |
| Data Memory (SRAM) | 128 bytes |
| EEPROM | Not present on this device |
| Maximum CPU Speed | 32 MHz |
| Instruction Set Width | 14-bit |
| Operating Voltage Range | 1.8 V to 5.5 V |
| I/O Pins | 6 (RA0-RA5) |
| پیکیج | 8-PDIP (0.300 in, 7.62 mm) |
| ADC | 10-bit, 4 channels |
| DAC | 5-bit, 1 channel |
| PWM Channels | 3 x 16-bit with CWG |
| Comparators | 1 |
| CLC (Configurable Logic Cell) | Yes |
| Internal Oscillator | 31 kHz LF + 16 MHz HF |
| آپریٹنگ درجہ حرارت رینج | -40C to +125C (E suffix = Extended) |
| ماؤنٹنگ ٹائپ | Through Hole (PDIP) |
| RoHS اسٹیٹس | Compliant |
PIC12F1571-E/P پن کنفیگریشن
| پن 1 | VDD — Positive supply voltage (1.8V to 5.5V) |
| پن 2 | RA5 — Bidirectional I/O / ICSPCLK / PWM3 |
| پن 3 | RA4 — Bidirectional I/O / PWM2 / CLKR / external clock input |
| پن 4 | RA3/MCLR/VPP — Input-only / Master Clear (reset) / programming high voltage |
| پن 5 | RA2 — Bidirectional I/O / analog AN2 / PWM1 / DAC1OUT |
| پن 6 | RA1 — Bidirectional I/O / analog AN1 / CWG1FLT / ICSPDAT |
| پن 7 | RA0 — Bidirectional I/O / analog AN0 / DAC1REF+ / CWG1OUT1 |
| پن 8 | VSS — Ground reference |
عام استعمالات
PIC12F1571-E/P کے لیے موزوں ہے 6 ایپلیکیشنs: LED Lighting Dimming and Color Mixing, Ceiling Fan and BLDC Motor Control, Stepper Motor Micro-Stepping Driver, Battery Charger State-of-Charge Controller, Smart Sensor Node and IoT Edge Device, Power Supply Auxiliary Controller.
LED Lighting Dimming and Color Mixing
The PIC12F1571-E/P fits LED lighting control because its three independent 16-bit PWM channels deliver smooth, high-resolution dimming (16-bit duty cycle = 65536 steps per channel) with negligible visible flicker, and the Complementary Waveform Generator (CWG) can produce non-overlapping drive signals for half-bridge LED driver stages. At 32MHz the CPU can refresh three PWM channels while servicing the 10-bit ADC for ambient-light feedback, all from the internal 16MHz HF oscillator with no external crystal. Compared with older PIC12F675/PIC12F683 designs running 10-bit PWM, the 16-bit PWM here gives 64x the dimming resolution, eliminating perceptible low-end flicker in dim-to-warm bulbs. Source: PIC12F1571 datasheet.
تجویز کردہ
Ceiling Fan and BLDC Motor Control
The PIC12F1571-E/P suits ceiling-fan and BLDC motor control through its 16-bit PWM + CWG combination, which generates the three-phase complementary drive signals needed to commutate a brushless motor without CPU overhead. The on-chip comparator provides zero-cross detection of back-EMF for sensorless control, while the 10-bit ADC reads speed-control potentiometer or Hall sensors. Core-Independent Peripherals (CIPs) let the PWM, CWG, and comparator run while the CPU sleeps, reducing average current to a few hundred microamps and enabling energy-star compliant standby. The 8-pin PDIP package makes hand-soldering feasible for low-volume motor-controller modules. Source: Microchip AN2014 BLDC motor control application note.
تجویز کردہ
Stepper Motor Micro-Stepping Driver
The PIC12F1571-E/P is well-suited to stepper motor micro-stepping because the three 16-bit PWM outputs (after CWG conditioning) can synthesize the sine-cosine current references for a two-phase bipolar stepper, while the 5-bit DAC produces the per-step reference voltage. With 16-bit PWM resolution the system can synthesize micro-step waveforms up to 1/256 step (combined with the 5-bit DAC) without external sine-lookup tables burning Flash. The CLC module provides hardware-level blanking and chopping-window logic that traditionally required a comparator + external gates. Operating at 1.8V-5.5V the MCU can run directly from a single Li-ion cell or a 3.3V regulated rail. Source: PIC12F1571 datasheet peripheral summary.
تجویز کردہ
Battery Charger State-of-Charge Controller
For battery charger control, the PIC12F1571-E/P combines the 10-bit ADC for voltage and current sensing, the comparator for end-of-charge detection, and the 16-bit PWM for charge-current regulation in a single 8-pin package. The internal 31kHz LF oscillator allows sleep-mode current measurement at <1uA quiescent, critical for standby drain in always-on charger applications. The 1.8V-5.5V operating range directly supports 1S Li-ion, 2S-3S alkaline, and 6V lead-acid chemistries with no external LDO. CLC implements the hysteresis loop around the comparator output, freeing the CPU to log coulomb counts or drive a status LED. Source: Microchip TB3130 battery charging technical brief.
تجویز کردہ
Smart Sensor Node and IoT Edge Device
The PIC12F1571-E/P fits IoT edge sensor nodes that need local signal conditioning before transmitting data to a host MCU or radio. The CLC module can implement hardware-level window comparators, peak detectors, or frequency multipliers without CPU intervention, while the 10-bit ADC and 5-bit DAC provide analog I/O for sensor calibration loops. The Configurable Logic Cell + PWM + ADC operate as core-independent peripherals, so the CPU can stay in sleep for most of the measurement cycle, achieving uA-level average current. The 128-byte SRAM and 1.75KB Flash are sufficient for sensor-linearization lookup tables and small state machines, with the 8-pin PDIP enabling breadboard-friendly prototype iteration. Source: Microchip PIC12F1571 product brief.
تجویز کردہ
Power Supply Auxiliary Controller
In switch-mode power supply (SMPS) auxiliary roles the PIC12F1571-E/P can implement housekeeping functions like OR-ing controller logic, fan-speed control, sequencing, and telemetry. The 16-bit PWM drives a cooling fan with closed-loop RPM control using the comparator to sense tach pulses, while the 10-bit ADC reads output voltage and temperature for telemetry reporting. CLC implements fast hardware-level fault interlocks that bypass the CPU latency, critical for OVP/OCP protection. At 32MHz the CPU has enough headroom to run SMBus or UART telemetry alongside the control loops. The extended -40C to +125C temperature rating supports placement near hot power components. Source: Microchip AN2117 SMPS auxiliary controller design.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC12F1571-E/P — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC12F1571-I/P | PIC12F1572-E/P | PIC12F1501-E/P |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-PDIP | 8-PDIP - same | 8-PDIP - same | 8-PDIP - same |
| Flash Memory | 1.75 KB | 1.75 KB | 2 KB (+14%) | 1.75 KB |
| SRAM | 128 B | 128 B | 256 B (+100%) | 128 B |
| Max CPU Clock | 32 MHz | 32 MHz | 32 MHz | 20 MHz (-37%) |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) |
| PWM Resolution | 3 x 16-bit | 3 x 16-bit | 3 x 16-bit | 4 x 10-bit |
| ADC | 10-bit, 4 ch | 10-bit, 4 ch | 10-bit, 4 ch | 10-bit, 4 ch |
| Comparators | 1 | 1 | 2 | 1 |
| Approx. Unit Price (qty 1) | $1.42 | $1.30 (approx.) | $1.55 (approx.) | $1.10 (approx.) |
اہم امتیازی خصوصیات
- Three 16-bit PWM channels with CWG, vs four 10-bit PWM on PIC12F1501 (بمقابلہPIC12F1501-E/P)
- Configurable Logic Cell (CLC) for hardware-level glue logic (بمقابلہPIC12F1501-E/P)
- 32 MHz operation vs 20 MHz on PIC12F1501 (بمقابلہPIC12F1501-E/P)
- Higher 2KB Flash variant (PIC12F1572-E/P) offers +14% code space (بمقابلہPIC12F1571-I/P)
ڈیزائن نوٹس
RA3 on the PIC12F1571-E/P is input-only - it cannot be configured as an output. Designers accustomed to larger PIC MCUs often assume all PORTA pins are bidirectional, but on 8-pin PIC12 devices RA3 doubles as the MCLR reset pin and is strictly input-only. Confirm pin direction before laying out any application circuit that requires 8 outputs (only 6 are available: RA0-RA2, RA4, RA5).
Place a 100nF decoupling capacitor as close as possible to the VDD pin (pin 1), with the ground return trace short and direct to pin 8 (VSS). For applications using the ADC, add a 10uF bulk capacitor near VDD to reduce digital switching noise coupling into analog measurements. The exposed lead-frame of the PDIP package is not connected to VSS, so the package body does not need a thermal pad.
If in-circuit serial programming (ICSP) is required in production, isolate RA0 (ICSPDAT) and RA1 (ICSPCLK) from external circuitry with 4.7k series resistors or a programming header. Without isolation, on-board pull-ups or load capacitance can interfere with the PICkit programmer and cause verification failures during flashing.
The PIC12F1571-E/P supports a wide 1.8V to 5.5V supply range, but the ADC accuracy degrades below 2.7V due to reduced reference headroom. For 10-bit ADC performance across temperature, operate VDD at 3.0V or higher. The internal 16MHz HF oscillator is factory calibrated to +/-2% at 3.0V/25C but can shift +/-5% across the full -40C to +125C range - use the FOSC calibration register or a crystal if UART timing is required.
تعمیل کی معلومات
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified (automotive applications should consider PIC16F or dsPIC families). Lead-free per Microchip standard shipping profile.
