PIC12F1572-I/P - 8-bit 32MHz 3.5KB Flash MCU 8-PDIP | Microchip
MPN: PIC12F1572-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.36 | $1.36 |
| 10 | $1.22 | $12.20 |
| 100 | $1.08 | $108.00 |
| 500 | $0.95 | $475.00 |
| 1,000 | $0.84 | $840.00 |
PIC12F1572-I/P Overview
A PIC12F-series microcontroller is an 8-bit reduced instruction set (RISC) device built around a Harvard architecture, used as a low-cost system-on-chip for embedded control. PIC12F devices sit at the low end of Microchip's PIC portfolio (PIC10F -> PIC12F -> PIC16F -> PIC18F) and target small pin-count applications that still need on-chip analog and PWM peripherals. They are widely used in consumer, industrial, and IoT products where 8 pins, a handful of analog inputs, and precise timing are sufficient.
Key features that distinguish the PIC12F1572 include three 16-bit PWM channels with independent time bases, enabling high-resolution control of LED drivers, stepper motors, and switch-mode power supplies. The device also includes a complementary waveform generator for half-bridge and full-bridge drive without external logic, an on-chip temperature indicator, and eXtreme Low Power (XLP) sleep modes. According to the Microchip datasheet, the enhanced mid-range core delivers up to 49 instructions per cycle in select instructions versus 24 on baseline PIC cores, improving determinism for time-critical loops.
Typical applications include high-resolution LED lighting, fan and pump speed control, battery chargers, small digital power conversion, sensor conditioning, and low-cost general-purpose control boards. The combination of three 16-bit PWMs, dual comparators, and a 10-bit ADC allows the PIC12F1572 to perform closed-loop control in a single chip.
When designing with the PIC12F1572-I/P, choose the PDIP package for breadboarding, hand-soldered prototypes, and educational kits. For production, consider its surface-mount siblings (PIC12F1572-I/SN SOIC-8, PIC12F1572-I/MS MSOP-8) which share the same pinout and die. Always provide a 0.1uF decoupling capacitor on VDD and follow the datasheet's In-Circuit Serial Programming (ICSP) layout recommendations.
This page synthesizes distributor pricing, drop-in alternative listings, and design notes not found in the manufacturer datasheet, giving engineers a faster path to part selection and PCB reuse.
Drop-in alternatives for PIC12F1572-I/P — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC12F1572-I/P (same form factor and footprint) — differing in Timers, MSL Level, Operating Temperature, ADC, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC12F1572-E/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC12F1572-I/SN
✅ Drop-In✓ In Stock
$0.75 / Unit
View Datasheet →PIC12F1572-I/MS
✅ Drop-In✓ In Stock
$0.72 / Unit
View Datasheet →PIC12F1501-I/P
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC12F1571-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC12F1572-I/P Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit Microcontroller (MCU) |
| Core Architecture | Enhanced Mid-Range PIC (8-bit RISC, Harvard) |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| Data SRAM | 256 bytes |
| Data EEPROM | 128 bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 2.5V / 3.3V / 5V (1.8V to 5.5V max range) |
| ADC | 10-bit, up to 4 channels |
| DAC | 1 x 5-bit DAC |
| Comparators | 2 |
| PWM Channels | 3 x 16-bit (independent time bases) |
| Timers | 1 x 8-bit, 1 x 16-bit |
| Complementary Waveform Generator (CWG) | Yes |
| I/O Pins | 6 |
| Package | 8-pin PDIP (P) |
| Operating Temperature | -40C to +85C (Industrial, -I suffix) |
| Mounting Type | Through-Hole |
| RoHS Status | Compliant |
PIC12F1572-I/P Pin Configuration
| Pin 1 | VDD — Positive supply voltage (2.5V/3.3V/5V) |
| Pin 2 | RA5 — Bidirectional I/O, also ICSPCLK |
| Pin 3 | RA4 — Bidirectional I/O |
| Pin 4 | RA3/MCLR — Input only or Master Clear reset |
| Pin 5 | RA2 — Bidirectional I/O |
| Pin 6 | RA1 — Bidirectional I/O |
| Pin 7 | RA0/ICSPDAT — Bidirectional I/O / ICSP data |
| Pin 8 | VSS — Ground |
Typical Applications
PIC12F1572-I/P is suitable for 6 applications: High-Resolution LED Lighting, Stepper Motor and DC Motor Control, Switch-Mode Power Supply (SMPS) Control, Battery-Powered IoT Sensor Nodes, Automotive Interior Lighting and Trim, Consumer Appliance Control Boards.
High-Resolution LED Lighting
The PIC12F1572 fits high-resolution LED lighting because its three independent 16-bit PWM channels provide 65,536 steps of dimming per channel, exceeding the human eye's perceptual resolution and enabling smooth fades below 1% duty cycle. The on-chip 10-bit ADC reads a potentiometer or ambient light sensor to close a feedback loop, while the CWG generates anti-phase signals for buck and boost LED driver topologies. The device runs at 32 MHz from a 3.3V rail, fitting into a single-chip constant-current LED driver with no external gate logic. Compared to PWM-less PIC10F parts, the 16-bit resolution eliminates visible flicker in dim-to-warm fixtures and color-mixing RGB applications.
Recommended
Stepper Motor and DC Motor Control
The PIC12F1572 suits stepper and brushed DC motor control because its three 16-bit PWM channels with independent timers can drive two phases plus an enable line, while a fourth software-driven GPIO handles direction. The CWG generates complementary outputs for H-bridge drivers, eliminating dead-time logic. Operating at 32 MHz, the enhanced mid-range core delivers 8 MIPS, enough for trapezoidal commutation at high step rates. The 10-bit ADC reads current-sense amplifiers for torque limiting, and the on-chip comparators provide hardware overcurrent protection. This eliminates the need for an external motor-control ASIC, fitting micro-stepping fans, micro-pumps, and small robotics in an 8-pin package.
Recommended
Switch-Mode Power Supply (SMPS) Control
The PIC12F1572 serves as a digital SMPS controller because its 16-bit PWM resolution allows switching frequencies up to 1 MHz with sub-1% duty-cycle granularity for tight regulation. The on-chip comparators provide cycle-by-cycle current limiting, and the CWG outputs a complementary pair with programmable dead time for synchronous rectifiers. The 10-bit ADC samples output voltage and current for closed-loop PID control, while the 32 MHz core runs the control loop at 100 kHz with headroom for housekeeping. With 3.5 KB Flash, the firmware can include soft-start, OVP, OCP, and brown-out routines for non-isolated buck, boost, and flyback converters up to 50W.
Recommended
Battery-Powered IoT Sensor Nodes
The PIC12F1572 fits battery-powered IoT nodes because of its eXtreme Low Power (XLP) sleep currents below 50 nA in deep sleep, plus a fast wake-up time that allows duty-cycled sensor sampling on a coin cell. The 10-bit ADC reads a thermistor, photodiode, or analog sensor; the comparators wake the core when a threshold is crossed, avoiding continuous ADC operation. Three 16-bit PWMs can drive a small buzzer, indicator LED, or haptic element without leaving sleep. The 3.5 KB Flash holds a LoRaWAN or Zigbee driver plus application logic, fitting a 1-2 year battery-life node in a 8-pin PDIP for prototyping before going to MSOP-8 in production.
Recommended
Automotive Interior Lighting and Trim
The PIC12F1572 (in automotive-qualified form) fits ambient interior lighting because its three 16-bit PWMs can independently drive RGB strips for color-tunable dome lights, footwell lights, and accent strips. The 10-bit ADC reads a light sensor and rotary encoder for brightness and color adjustment, while the CWG drives LED driver MOSFETs directly at logic levels. The 5V tolerance on all I/O pins suits 12V automotive battery systems after simple resistive dividers. Operating across -40C to +125C (E-temp grade), the part handles under-hood and cabin environments, and the 3.5 KB Flash holds LIN or CAN-friendly PWM sequencing routines. Designers use the -E/P for non-safety automotive functions where AEC-Q100 is not required.
Recommended
Consumer Appliance Control Boards
The PIC12F1572 fits small consumer appliances (coffee grinders, blenders, fans, slow cookers) because its 8-pin footprint and 3.5 KB Flash hold full appliance control logic with button debouncing, timer state machines, and motor PWM. The two comparators detect zero-crossing on AC mains (via a resistor divider) for triac triggering, while the 16-bit PWMs drive the motor or heater. The 5V operation matches rectified mains after a capacitive dropper, and the -40C to +85C range covers kitchen and laundry environments. With XLP sleep below 1 uA, battery-backed timers retain the clock across power cycles. The PDIP-8 package (-I/P) simplifies hand-rework in low-cost appliance production runs.
Recommended
Recommended Products Summary
Engineering reference data for PIC12F1572-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC12F1572-E/P | PIC12F1572-I/SN | PIC12F1501-I/P | PIC12F1571-I/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PDIP-8 | PDIP-8 - same | SOIC-8 - same die, surface mount | PDIP-8 - same | PDIP-8 - same |
| Flash Memory | 3.5 KB | 3.5 KB | 3.5 KB | 1.75 KB (-50%) | 1.75 KB (-50%) |
| SRAM | 256 bytes | 256 bytes | 256 bytes | 64 bytes (-75%) | 1 KB (+300%) |
| PWM Channels | 3 x 16-bit | 3 x 16-bit | 3 x 16-bit | 4 x 10-bit | 2 x 16-bit |
| Maximum Clock | 32 MHz | 32 MHz | 32 MHz | 20 MHz (-37.5%) | 32 MHz |
| DAC | 1 x 5-bit | 1 x 5-bit | 1 x 5-bit | None | None |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- 3 x 16-bit PWM with CWG and 5-bit DAC in 8-pin package (vs PIC12F1501-I/P)
- Larger Flash for complex firmware (vs PIC12F1571-I/P)
- Industrial temperature variant -I covers most use cases; -E is the high-temp upgrade (vs PIC12F1572-E/P)
Design Notes
Place a 0.1 uF decoupling capacitor as close as possible to the VDD pin (pin 1) and a 10 uF bulk capacitor on the same rail. The PIC12F1572 has a maximum VDD rise time specification; rapid VDD ramps (less than 50 ms from 0 to VDD) can cause POR issues. Add a 100 ohm series resistor on MCLR if the cap on the MCLR line is greater than 0.1 uF to limit inrush current into the ESD structure during ICSP programming.
Keep the ICSP connector traces (ICSPCLK on RA5, ICSPDAT on RA0) short and away from PWM output edges to avoid coupling programming noise into the high-impedance lines. The MCLR line should have its own pull-up; do not share it with any other I/O function without a series resistor. Per the Microchip datasheet, RA3 is input-only; do not drive it as an output or risk contention. Analog traces (ADC inputs) should be guarded with digital ground to reduce ADC noise pickup.
Do not leave unused I/O pins floating - configure them as outputs or inputs with the internal weak pull-up enabled to minimize sleep current and reduce EMI susceptibility. The PIC12F1572 has separate input and output latches; the PPS system (on parts that have it) is not available on this device, so pin remapping is fixed. The 5-bit DAC is unbuffered and has low drive capability; add an op-amp follower if driving a low-impedance load. Firmware developers should use the latest XC8 compiler and the MCC (MPLAB Code Configurator) peripheral libraries to avoid register-name typos across PIC12F1571/PIC12F1572 variants.
Compliance Information
RoHS and REACH compliant per Microchip product page. The -I/P is not AEC-Q100 qualified; for AEC-Q100 applications, consult Microchip's automotive-grade PIC portfolio (e.g., PIC16F1xxx family). Lead-free and halogen-free per the Microchip material declaration.
