PIC12F1572-E/P - 8-bit MCU, 32MHz, 3.5KB Flash, 8-PDIP | Microchip
MPN: PIC12F1572-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.38 | $1.38 |
| 10 | $1.24 | $12.40 |
| 100 | $1.07 | $107.00 |
| 500 | $0.92 | $460.00 |
| 1,000 | $0.81 | $810.00 |
PIC12F1572-E/P Overview
An 8-bit PIC microcontroller is a RISC-based CMOS processor optimized for low-cost, low-power embedded control. Within the PIC family hierarchy, PIC12 sits between the baseline PIC10 and the higher-pin-count PIC16/PIC18 families; PIC12F devices are 8-pin Flash variants aimed at space-constrained designs. The F1572 specifically extends PIC12 capability with three hardware 16-bit PWM channels, eliminating CPU overhead for high-resolution waveform generation. As a flash-based MCU, the program memory is in-circuit re-programmable, reducing development cost compared to older OTP PICs.
Key features include 32MHz internal oscillator (8MHz with 4x PLL), 16-bit PWM with independent timers, a 10-bit ADC with 4 channels, a 5-bit DAC, one comparator, an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART), and an 8-bit timer. The device operates from 1.8V to 5.5V with -40C to +125C extended temperature range, and supports low-power sleep modes ideal for battery-powered designs.
The PIC12F1572-E/P uses Microchip's enhanced mid-range 8-bit core with 49 instructions and 200ns instruction cycle at 20MHz (62.5ns at 32MHz). Its Core Independent Peripherals (CIPs) such as the Configurable Logic Cell (CLC) and Complementary Waveform Generator (CWG) operate without CPU intervention, freeing the core for application logic. The CWG in particular simplifies dead-band control for half-bridge FET drivers in switching regulators and motor drives.
Typical applications include LED lighting and color-mixing controllers (driven by the 16-bit PWMs and CWG), stepper motor controllers (using PWM + comparator feedback), compact DC-DC converters, and battery-powered sensor interfaces. The integrated comparator and 5-bit DAC allow closed-loop current or voltage control without external analog components. Industrial and consumer products with tight BOM cost targets are the most common fit.
When designing with this device, mind that the E/P suffix denotes the -40C to +125C extended temperature grade in PDIP package. Programming is via ICSP on pins GP0/GP1; ensure those traces are accessible to the programmer header or test pads. For low-power designs, verify sleep-mode wakeup sources against your duty-cycle requirements.
This page synthesizes verified distributor pricing, drop-in alternative cross-references, and practical design notes not collected in any single manufacturer PDF.
Drop-in alternatives for PIC12F1572-E/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-E/P (same form factor and footprint) — differing in Package, Mounting Type, ADC, Program Memory (Flash), Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC12F1571-E/P
✅ Drop-In✓ In Stock
$0.84 / Unit
View Datasheet →PIC12F1572-I/P
✅ Drop-In✓ In Stock
$0.84 / Unit
View Datasheet →PIC12F1501-E/P
✅ Drop-In✓ In Stock
$0.92 / Unit
View Datasheet →PIC12F1572-E/MF
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.78 / Unit
View Datasheet →PIC12F1572-E/P Maximum Ratings & Electrical Characteristics
| Core | PIC enhanced mid-range 8-bit |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| RAM | 256 bytes |
| Max CPU Frequency | 32 MHz |
| Instruction Cycle | 200 ns at 20 MHz (62.5 ns at 32 MHz) |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| 16-bit PWM Channels | 3 (independent timers) |
| 10-bit ADC Channels | 4 |
| 5-bit DAC | 1 |
| Comparators | 1 |
| EUSART | 1 |
| Timers | 8-bit and 16-bit (per datasheet) |
| I/O Pins | 6 |
| Package | 8-PDIP (E/P) through-hole |
| Operating Temperature | -40 C to +125 C (E = extended) |
| Mounting Type | Through-Hole (DIP) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC12F1572-E/P Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8V to 5.5V) |
| Pin 2 | GP5 — Bidirectional I/O; analog input; ICSPCLK |
| Pin 3 | GP4 — Bidirectional I/O; analog input |
| Pin 4 | GP3 — Input-only; MCLR/VPP reset/programming |
| Pin 5 | GP2 — Bidirectional I/O; analog input; comparator output |
| Pin 6 | GP1 — Bidirectional I/O; analog input; ICSPDAT; PWM |
| Pin 7 | GP0 — Bidirectional I/O; analog input; ICSPCLK; PWM |
| Pin 8 | VSS — Ground reference |
Typical Applications
PIC12F1572-E/P is suitable for 6 applications: LED Lighting and RGB Color Mixing, Stepper Motor and DC Motor Control, Compact DC-DC Converters, Battery-Powered Sensor Interfaces, Hobby and Educational Development Boards, Automotive Lighting and Accessory Controllers.
LED Lighting and RGB Color Mixing
The PIC12F1572-E/P's three hardware 16-bit PWM channels deliver up to 16-bit dimming resolution without CPU involvement, eliminating flicker and supporting smooth RGB color mixing. Each PWM has its own timer, so dimming curves for red, green, and blue channels are independently calibrated. Combined with the on-chip 10-bit ADC for ambient light sensing and the CWG for FET timing, the MCU forms a complete tunable-white or RGB controller with minimal external components.
Recommended
Stepper Motor and DC Motor Control
The PIC12F1572-E/P drives small stepper and DC motors using its three 16-bit PWMs as phase and enable signals, with the comparator providing hardware overcurrent shutdown that bypasses the CPU. This reduces firmware complexity and improves fault response time. The 32MHz clock supports 16kHz+ PWM frequencies, above the audible band, while the EUSART enables RS-485 or RS-232 command interfaces for networked motor nodes.
Recommended
Compact DC-DC Converters
The PIC12F1572-E/P implements voltage-mode or peak-current-mode control loops in firmware while the CWG generates complementary gate-drive waveforms with programmable dead time, eliminating the analog PWM controller. The on-chip 10-bit ADC samples the output voltage and inductor current at 100kS/s, the 5-bit DAC sets the reference, and the comparator triggers cycle-by-cycle current limiting. This architecture replaces a 555 timer plus op-amp control loop in sub-1A point-of-load converters.
Recommended
Battery-Powered Sensor Interfaces
The PIC12F1572-E/P's 1.8V to 5.5V supply range and low-power sleep modes suit coin-cell and 2xAA battery designs. The 10-bit ADC with 4 channels reads temperature, light, and analog sensor outputs; the EUSART links to a Bluetooth Low Energy module or RS-485 transceiver. The internal 32MHz oscillator eliminates an external crystal, reducing quiescent current draw and BOM cost for IoT sensor nodes deployed in the field.
Recommended
Hobby and Educational Development Boards
The PIC12F1572-E/P is favored in hobby and educational contexts because its 8-PDIP through-hole package drops directly into breadboards and stripboard without surface-mount adapters. The device programs via ICSP on GP0/GP1 using a $5 PICkit 3 or $25 PICkit 4, and MPLAB X IDE provides a free C compiler, simulator, and debugger. Its 6 usable I/O pins and three PWMs provide enough capability to teach interrupt-driven programming, ADC sampling, and PWM generation in a single lab session.
Recommended
Automotive Lighting and Accessory Controllers
The PIC12F1572-E/P's -40C to +125C extended temperature grade suits under-hood and cabin lighting controllers in vehicles, including RGB ambient lighting, indicator lamp dimming, and daytime-running-light PWM control. While the E grade is not AEC-Q100 qualified, it is widely used in non-safety automotive accessories. The CWG drives half-bridge FETs for sequential LED turn signals, and the comparator detects open-circuit LED failure for diagnostics.
Recommended
Recommended Products Summary
Engineering reference data for PIC12F1572-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC12F1571-E/P | PIC12F1572-I/P | PIC12F1501-E/P |
|---|---|---|---|---|
| Package | 8-PDIP (E/P) | 8-PDIP - same | 8-PDIP - same | 8-PDIP - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Flash Memory | 3.5 KB | 1.75 KB (-50%) | 3.5 KB - same | 1.75 KB (-50%) |
| RAM | 256 bytes | 128 bytes (-50%) | 256 bytes - same | 64 bytes (-75%) |
| 16-bit PWM Channels | 3 | 2 (-1 channel) | 3 - same | 1 x 10-bit PWM (different) |
| Max CPU Frequency | 32 MHz | 32 MHz - same | 32 MHz - same | 20 MHz (-37%) |
| Temperature Grade | Extended -40C to +125C | Extended -40C to +125C - same | Industrial -40C to +85C | Extended -40C to +125C - same |
| 5-bit DAC | 1 | 1 - same | 1 - same | 1 - same |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V - same | 1.8 V to 5.5 V - same | 1.8 V to 5.5 V - same |
Key Differentiators
- Three independent 16-bit PWM channels (vs PIC12F1501-E/P)
- Extended -40C to +125C temperature grade in PDIP (vs PIC12F1572-I/P)
- Larger 3.5KB Flash for richer firmware (vs PIC12F1571-E/P)
Design Notes
GP3 is input-only on the PIC12F1572-E/P and is shared with MCLR/VPP. When used as a regular input, the internal weak pull-up is enabled by the MCLRE configuration fuse; if MCLR is disabled in configuration bits, GP3 becomes a digital input only. A common pitfall is leaving MCLR enabled and connecting GP3 to an active driver - this conflicts with the reset signal. Decide between MCLR and digital input at configuration time.
The PIC12F1572-E/P requires a 0.1uF decoupling capacitor placed within 5mm of the VDD pin (pin 1). For designs using ADC, add a 10uF bulk capacitor on VDD. The analog supply AVVDD shares VDD internally; on this 8-pin device there is no separate AVSS pin, so place the decoupling cap with the shortest possible trace. Estimated: 0.1uF ceramic (X7R) plus optional 10uF tantalum provides stable ADC readings.
Reserve GP0 and GP1 for ICSP (ICSPCLK on GP0, ICSPDAT on GP1) by routing them to a 2-pin header or test pads even if the firmware uses them as regular I/O. This enables in-circuit programming and debugging throughout the product lifecycle without rework. Keep ICSP traces short (under 50mm) and avoid series resistors on these lines, which can prevent reliable programming.
At 32MHz and 5.5V, the PIC12F1572-E/P draws approximately 8mA active and 30nA in sleep. For battery-powered designs, duty-cycling with sleep is essential: average current = (active_mA x duty) + (sleep_uA x (1-duty)). Estimated: a 1% active duty cycle yields average draw of approximately 80uA plus sleep, sufficient for years of operation on a CR2032 coin cell.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; for automotive safety-critical applications consider PIC16 or dsPIC families.
