PIC12F1612-I/MF - 8-bit MCU, 32MHz, 3.5KB Flash, 8-DFN | Microchip
MPN: PIC12F1612-I/MF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.42 | $1.42 |
| 10 | $1.28 | $12.80 |
| 100 | $1.05 | $105.00 |
| 500 | $0.92 | $460.00 |
| 1,000 | $0.81 | $810.00 |
PIC12F1612-I/MF Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (typically Flash), working RAM, and a rich set of on-chip peripherals such as timers, ADC, communication interfaces, and I/O pins. The PIC12F1612 belongs to the PIC® 12F family of 8-bit microcontrollers, positioned in Microchip's mid-range PIC portfolio as an 8-pin compact MCU for embedded control of small motors, LED lighting, sensor signal conditioning, and general-purpose applications. Its position in the broader taxonomy is: PIC12F1612 -> PIC12F family -> 8-bit PIC MCU -> Microcontroller -> Semiconductor.
Key features of the PIC12F1612 include six I/O pins sharing six peripheral functions, two 8-bit timers plus one 16-bit timer, a 10-bit ADC with oversampling and averaging, hardware limit timer, and zero-cross detection. The device operates from 2.5 V to 5.5 V and supports industrial temperature range of -40 °C to +85 °C. An internal 32 MHz oscillator with ±1 % accuracy eliminates the need for an external crystal in most designs, reducing BOM cost and PCB area.
The architecture is built on Microchip's enhanced mid-range 8-bit core using a 14-bit instruction set, providing single-cycle operation for most instructions at 32 MHz (125 ns instruction cycle). On-chip peripherals like CWG and NCO offload waveform synthesis and frequency generation from the CPU, enabling deterministic hardware-driven control loops useful for motor drive, dimming, and pulse generation. The wide peripheral set allows a single MCU to replace multiple analog/discrete components.
Typical applications include small DC motor and fan control, LED lighting dimming and color mixing, capacitive-touch user interfaces, sensor signal conditioning with hardware averaging, and compact consumer appliances. The 8-DFN 3x3 mm footprint makes it well-suited for space-constrained designs.
When designing with the PIC12F1612, ensure proper decoupling (100 nF + 1 µF) close to VDD, and verify that the total I/O sink/source current budget (per-pin and per-port) is respected for LED or relay drive scenarios. Always check the latest PIC12F1612 errata document for known device issues during firmware development.
This page synthesizes distributor pricing, drop-in alternative MCUs, and practical design notes not found in the manufacturer datasheet alone, helping engineers evaluate the PIC12F1612-I/MF against its PIC12F1571, PIC12F1572, and PIC12F1501 siblings, as well as automotive-grade -Q variants.
Drop-in alternatives for PIC12F1612-I/MF — 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 PIC12F1612-I/MF (same form factor and footprint) — differing in ADC, Package, Core Architecture, Internal Oscillator, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC12F1612-E/MF
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.5 / Unit
View Datasheet →PIC12F1572-I/MF
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.85 / Unit
View Datasheet →PIC12F1571-I/MF
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.76 / Unit
View Datasheet →PIC12F1501-I/MF
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.59 / Unit
View Datasheet →PIC12F1612-I/MF Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit Microcontroller (MCU) |
| Core Architecture | PIC enhanced mid-range 8-bit, 14-bit instruction set |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| Data SRAM | 256 bytes |
| Data EEPROM | 256 bytes |
| I/O Pins | 6 |
| ADC | 10-bit, with Computation (ADCC) |
| Timers | Two 8-bit, one 16-bit; 24-bit Signal Measurement Timer (SMT) |
| Supply Voltage (VDD) | 2.5 V to 5.5 V |
| Operating Temperature | -40 °C to +85 °C (Industrial) |
| Internal Oscillator | 32 MHz, ±1 % |
| Core-Independent Peripherals | CWG, NCO, CLC, ADCC, SMT, Zero-Cross Detect |
| Package | 8-pin DFN (3 x 3 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC12F1612-I/MF Pin Configuration
| Pin 1 | VDD — Positive supply voltage (2.5 V to 5.5 V) |
| Pin 2 | RA5 — Bidirectional I/O; analog input; ICSPCLK |
| Pin 3 | RA4 — Bidirectional I/O; analog input; T0CKI output |
| Pin 4 | RA3 — Bidirectional I/O; analog input; MCLR/VPP |
| Pin 5 | RA2 — Bidirectional I/O; analog input; DAC output reference |
| Pin 6 | RA1 — Bidirectional I/O; analog input; ICSPDAT |
| Pin 7 | RA0 — Bidirectional I/O; analog input; ICSPDAT |
| Pin 8 | VSS — Ground reference |
Typical Applications
PIC12F1612-I/MF is suitable for 6 applications: Small DC Motor and Fan Control, LED Lighting Dimming and Color Mixing, Capacitive-Touch User Interface, Sensor Signal Conditioning, Compact Consumer Appliances, IoT Edge Node Data Aggregation.
Small DC Motor and Fan Control
The PIC12F1612 fits small DC motor and fan control because it integrates a Complementary Waveform Generator (CWG) capable of producing complementary PWM with programmable dead-band, a 24-bit Signal Measurement Timer for back-EMF zero-cross detection, and a 10-bit ADCC for hardware-averaged current sensing. In a typical closed-loop fan controller, the MCU drives a half-bridge at 25 kHz PWM while the SMT captures zero-cross events to compute commutation timing, all without CPU load. The 8-DFN 3x3 mm footprint fits inside a small fan hub, and the 2.5-5.5 V VDD matches a single Li-ion or USB rail. Compared to a discrete analog control loop, the PIC12F1612 offers firmware-adjustable speed curves and fault protection via the CLC peripheral.
Recommended
LED Lighting Dimming and Color Mixing
For LED dimming and color-mixing applications, the PIC12F1612 offers on-chip PWM channels, the 10-bit ADC with Computation for ambient light feedback, and CLC for hardware signal routing between sensors and PWM outputs. The 32 MHz core and 125 ns instruction cycle allow high-resolution PWM at 16-bit for smooth 0.01% dimming steps. A typical RGBW lamp controller uses three PWM channels driven by the CWG peripheral, with the ADCC oversampling ambient light to maintain constant lux via hardware-averaged duty cycle adjustment. The 8-DFN footprint enables integration into a GU10 bulb PCB, and the 2.5-5.5 V VDD range directly supports constant-current LED driver ICs.
Recommended
Capacitive-Touch User Interface
The PIC12F1612 is well-suited for capacitive-touch button or slider implementations thanks to its CWG, CLC, and ADCC peripherals that can implement charge-time measurement (CTMU-equivalent) without external analog components. The 24-bit SMT provides high-resolution time measurement for differentiating touch from baseline capacitance drift due to temperature. In a 4-button touch keypad, the MCU scans each channel every 8 ms while spending <5% CPU time, leaving headroom for additional housekeeping. The 8-DFN footprint fits behind a 6 mm glass panel, and the industrial temperature range supports automotive cabin or outdoor appliance use. The PIC MCU ecosystem also offers Microchip's mTouch firmware library for drop-in capacitive-touch routines.
Recommended
Sensor Signal Conditioning
The PIC12F1612 supports sensor signal conditioning tasks such as RTD, thermistor, or load-cell reading through its 10-bit ADC with Computation (oversampling to 14-bit effective resolution), built-in temperature sensor, and CLC for analog signal routing. The 24-bit SMT can measure low-frequency sensor output periods with sub-microsecond resolution. In a precision thermistor interface, the ADCC hardware-averages 256 samples to suppress mains-frequency noise, while the CLC implements a hysteresis comparator on the conditioned output, freeing the CPU for higher-level functions. The 2.5-5.5 V VDD range supports battery-powered sensor transmitters, and the 8-DFN package fits in a TO-5 sensor housing.
Recommended
Compact Consumer Appliances
The PIC12F1612 targets compact consumer appliances such as electric toothbrushes, beard trimmers, and small kitchen gadgets where PCB area is critical and BOM cost matters. Its 8-DFN 3x3 mm package fits inside a vibration motor housing, and the internal 32 MHz oscillator eliminates two external crystal pads. The CWG peripheral drives the brushed-DC motor with programmable dead-band protection, while the SMT measures motor RPM via back-EMF zero-cross for closed-loop speed control. The 256-byte EEPROM stores usage counters and battery health data. NanoWatt sleep modes drop current consumption below 1 µA, supporting multi-month standby time from a single Li-ion cell.
Recommended
IoT Edge Node Data Aggregation
The PIC12F1612 serves as an ultra-low-power IoT edge node that aggregates data from one or two sensors before sending a wake-up signal to a host radio MCU. The 24-bit SMT acts as a low-power wakeup timer with microsecond accuracy, while the ADCC oversamples the sensor to suppress noise. In a remote soil-moisture sensor node, the PIC12F1612 wakes every 15 minutes, reads a resistive sensor via ADC, applies moving-average filtering in firmware, and pulses a sub-GHz radio's TX enable line only when a threshold is crossed. The 8-DFN footprint allows integration directly into a soil probe, and the 2.5-5.5 V VDD range supports a 2x AA battery pack with years of operating life.
Recommended
Recommended Products Summary
Engineering reference data for PIC12F1612-I/MF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC12F1612-E/MF | PIC12F1572-I/MF | PIC12F1571-I/MF | PIC12F1501-I/MF |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-pin DFN (3x3 mm) | 8-pin DFN (3x3 mm) - same | 8-pin DFN (3x3 mm) - same | 8-pin DFN (3x3 mm) - same | 8-pin DFN (3x3 mm) - same |
| CPU Core / Max Frequency | 8-bit PIC / 32 MHz | 8-bit PIC / 32 MHz | 8-bit PIC / 32 MHz | 8-bit PIC / 32 MHz | 8-bit PIC / 32 MHz |
| Flash Program Memory | 3.5 KB (2K x 14) | 3.5 KB | 3.5 KB | 1.75 KB | 1.75 KB |
| SRAM | 256 bytes | 256 bytes | 256 bytes | 128 bytes | 64 bytes |
| ADC | 10-bit ADCC | 10-bit ADCC | 10-bit ADC | 10-bit ADC | 10-bit ADC |
| Core-Independent Peripherals | CWG + NCO + CLC + SMT + ADCC | CWG + NCO + CLC + SMT + ADCC | None of CWG/NCO/CLC/SMT | None of CWG/NCO/CLC/SMT | CLC + NCO only |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Unit Price (qty 1, as of 2026-09-15) | $1.42 USD | ~$1.55 USD | ~$1.05 USD | ~$0.95 USD | ~$0.95 USD |
Key Differentiators
- Highest core-independent peripheral density in PIC12F family (vs PIC12F1572-I/MF)
- Double the Flash memory vs PIC12F1571 / PIC12F1501 (vs PIC12F1571-I/MF)
- Extended temperature grade option available (vs PIC12F1612-E/MF)
Design Notes
Decouple VDD with a 100 nF ceramic capacitor placed within 3 mm of the VDD pin, and add a bulk 1 µF to 10 µF capacitor on the same rail. The PIC12F1612 is specified for 2.5 V-5.5 V; below 3.0 V, the 32 MHz HFINTOSC accuracy degrades and the brown-out reset (BOR) threshold becomes critical. For battery-powered designs, use the nanoWatt sleep modes with WDT timeout to drop IDD below 1 µA between sensor reads. Always include a 100 kΩ pull-up on MCLR to prevent unintended reset during supply ramp.
The 8-pin DFN (MF) package has an exposed thermal pad (EP) on the underside that MUST be soldered to a PCB ground pad for mechanical reliability and thermal dissipation, even though the PIC12F1612 is a low-power device. The recommended PCB footprint follows JEDEC MO-229; the EP land should be at least 50% of the package body area with thermal vias to the inner ground plane. Route analog ADC signals (RA0-RA3) on a separate analog ground island joined to VSS at a single point to avoid digital switching noise coupling into the ADC result.
When migrating firmware from PIC12F1501/1571 to PIC12F1612, note that the I/O peripheral mapping is identical but the ADC registers differ (ADCON0/1/2 vs ADCCON0-3) due to the new ADCC peripheral - firmware must be recompiled and re-validated. Configuration words (CONFIG1/2) for the PIC12F1612 require explicit WDT enable/disable and LVP settings; leaving them at default may disable in-circuit serial programming (ICSP). Always check the published PIC12F1612 errata sheet before production ramp for any new module-specific issues.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified in the standard -I/MF industrial grade; choose PIC12F1612-E/MF for extended temperature or contact Microchip for -Q1 automotive variants.
