PIC32MX150F128B-I/ML Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
The PIC32MX150F128B-I/ML is a 32-bit MIPS-based microcontroller from Microchip with 128 KB Flash, 32 KB RAM, ADC, and DMA in a compact 28-pin QFN package. It runs at up to 40 MHz and supports multiple serial interfaces including SPI, I2C, and UART. Ideal for space-constrained IoT nodes, sensor hubs, and consumer electronics requiring 32-bit performance in a small footprint.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC32MX150F128B-I/ML Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.1800(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 32-bit MIPS core at up to 40 MHz delivers efficient processing for IoT and control tasks
- 128 KB Flash and 32 KB SRAM support complex firmware with real-time data buffering
- DMA channels enable background data transfers without CPU involvement, improving throughput
- Integrated ADC for direct analog sensor acquisition without external converters
- Compact 28-pin QFN (VQFN-28) package minimizes PCB area in space-constrained designs
- Boundary scan (JTAG) support enables in-system testing and debugging on assembled boards
Applications
The PIC32MX150F128B-I/ML is suited for IoT sensor nodes, smart home devices, and low-complexity human-machine interfaces where 32-bit processing power is needed within a compact 28-pin QFN footprint. Its DMA channels allow continuous analog data capture from the ADC while the CPU executes communication and processing tasks in parallel. Wearable electronics, wireless sensor modules, and portable medical devices benefit from its balance of 128 KB Flash, 32 KB RAM, and low pin count.
Specifications
| Manufacturer Package Code | VQFN-28 |
| Factory Lead Time | 6Weeks |
| YTEOL | 13 |
| Has ADC | YES |
| Bit Size | 32 |
| Boundary Scan | YES |
| CPU Family | PIC32 |
| Clock Frequency-Max | 40MHz |
| DAC Channels | NO |
| DMA Channels | YES |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-PQCC-N28 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of DMA Channels | 4 |
| Number of External Interrupts | 5 |
| Number of I/O Lines | 21 |
| Number of Timers | 5 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC28,.24SQ,25 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 32768 |
| RAM (words) | 32768 |
| ROM (words) | 131072 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 40MHz |
| Supply Current-Max | 37mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 2.3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.65mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How much RAM does PIC32MX150F128B-I/ML provide, and how does this limit the stack depth for RTOS-based firmware?
The PIC32MX150F128B-I/ML includes 32 KB of on-chip SRAM for stack, heap, and data buffers. For a lightweight RTOS such as FreeRTOS, this supports approximately 4 to 6 concurrent tasks with individual 1 KB stacks while leaving headroom for dynamic memory allocation. Designs requiring more RAM should consider devices with 64 KB or larger SRAM, but for typical sensor acquisition and communication tasks, 32 KB is adequate at 40 MHz.
In a sensor hub design running at 40 MHz, how do the DMA channels on PIC32MX150F128B-I/ML improve ADC data acquisition efficiency?
The DMA controller on PIC32MX150F128B-I/ML allows the ADC to stream sample data directly into SRAM buffers without CPU intervention, freeing all 40 MHz of core bandwidth for filtering algorithms, protocol handling, or display updates. Without DMA, each ADC conversion would require an interrupt service routine, adding latency and CPU load overhead. For multichannel acquisition scenarios sampling at several hundred kHz, DMA-based transfers are essential to avoid sample loss.
Is PIC32MX150F128B-I/ML a suitable drop-in replacement for an 8-bit PIC18 device in an existing 28-pin QFN design?
Physically, the PIC32MX150F128B-I/ML uses a 28-pin QFN (VQFN-28) package, but pin assignment differs from PIC18 QFN-28 pinouts, so a direct drop-in replacement is rarely possible without PCB changes. Functionally, the 32-bit MIPS core at 40 MHz and 128 KB Flash provide significantly more compute headroom than typical 8-bit PIC18 variants. If the PCB layout is being revised, migrating from PIC18 to PIC32MX150F128B-I/ML can accommodate larger firmware and more demanding real-time tasks.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.4900 | $4.49 |
| 5+ | $3.6600 | $18.30 |
| 25+ | $3.4200 | $85.50 |
| 122+ | $3.1800 | $387.96 |
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