PIC32MX250F128B-50I/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
The PIC32MX250F128B-50I/SO is a 32-bit MIPS-based PIC32 microcontroller from Microchip featuring 128 KB Flash, 3 KB boot Flash, and ADC, running at up to 50 MHz in a 28-pin SOIC package. It supports JTAG boundary scan for production testing and offers a 14-year estimated product lifetime. Suitable for industrial and embedded connectivity applications with a 5-week standard lead time.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC32MX250F128B-50I/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.8000(MOQ 5)
- 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-based PIC32 CPU running up to 50 MHz
- 128 KB Flash program memory plus 3 KB dedicated boot Flash
- Integrated ADC for analog sensor acquisition
- JTAG boundary scan support for automated production testing
- 28-pin SOIC package for standard SMT assembly
- 14-year estimated product lifetime (YTEOL) for long-lifecycle designs
Applications
The PIC32MX250F128B-50I/SO targets embedded connectivity designs such as USB device bridges, SPI-to-CAN gateways, and low-power industrial sensor nodes that benefit from 32-bit MIPS processing at 50 MHz with a compact SOIC-28 footprint. Its 128 KB Flash provides space for TCP/IP stacks, USB middleware, and application code simultaneously, enabling single-chip solutions for IoT edge devices and HMI controllers. JTAG boundary scan support also streamlines automated in-circuit testing on high-volume PCB production lines.
Specifications
| Manufacturer Package Code | SOIC-28 |
| Factory Lead Time | 5Weeks |
| YTEOL | 14 |
| Has ADC | YES |
| Additional Feature | THIS DEVICE FEATURES 3KBYTE OF BOOT FLASH MEMORY |
| Bit Size | 32 |
| Boundary Scan | YES |
| CPU Family | PIC32 |
| Clock Frequency-Max | 50MHz |
| DAC Channels | NO |
| DMA Channels | YES |
| Format | FIXED POINT |
| Integrated Cache | YES |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of DMA Channels | 4 |
| Number of External Interrupts | 5 |
| Number of I/O Lines | 19 |
| Number of Serial I/Os | 4 |
| Number of Timers | 7 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP28,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Qualification Status | Not Qualified |
| RAM (bytes) | 32768 |
| ROM (words) | 131072 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 50MHz |
| 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 | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| ## PIC32MX250F128B-50I/SO Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC32MX250F128B-50I/SO:
suggested
suggested
suggested
suggested
suggested
suggested
32 Bit MCU, 256KB Flash, 64KB RAM, 50 MHz, 28 Pin, USB, 3 Comp, CTMU, RTCC
Frequently Asked Questions
How does PIC32MX250F128B-50I/SO's 50 MHz clock rate compare to PIC16 or PIC18 devices for USB communication tasks?
At 50 MHz, the PIC32MX250F128B-50I/SO delivers approximately 50 DMIPS on its 32-bit MIPS core, far exceeding what 8-bit PIC16 (8 MIPS at 32 MHz) or PIC18 (12 MIPS at 48 MHz) controllers can provide. This headroom allows the MCU to run a full-speed USB 2.0 stack at 12 Mbps while simultaneously handling ADC sampling, PWM generation, and UART communication without dropping frames.
What role does the 3 KB boot Flash play in firmware update scenarios for PIC32MX250F128B-50I/SO-based products?
The dedicated 3 KB boot Flash holds the device's bootloader code separately from the 128 KB application Flash region. This separation allows a UART or USB bootloader to reside in protected memory, enabling safe field firmware updates where a power failure or write error during programming cannot corrupt the boot code and brick the device — a critical requirement in remotely deployed industrial controllers.
Does the JTAG boundary scan feature on PIC32MX250F128B-50I/SO reduce test fixture costs in high-volume production?
Yes. JTAG boundary scan allows automated in-circuit testers (ICT) to verify solder joint continuity on all 28 pins without bed-of-nails fixtures for every node. For boards with 500 or more components, JTAG-based board test can reduce fixture costs by 30% to 60% compared to full ICT fixture designs, while catching opens and shorts on the PIC32MX250F128B-50I/SO and neighboring components.
What is the recommended stocking strategy for PIC32MX250F128B-50I/SO given its 14-year product lifetime and 5-week lead time?
With a 14-year YTEOL rating and a 5-week factory lead time, the PIC32MX250F128B-50I/SO is a relatively low-risk part for long-lifecycle programs. Industrial OEMs building products with 7-year to 10-year service windows should maintain 3 to 6 months of safety stock and place quarterly blanket orders to smooth out distributor inventory fluctuations, particularly given that 32-bit MCU demand can spike during major automotive and IoT platform launches.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 5+ | $5.2600 | $26.30 |
| 10+ | $4.8100 | $48.10 |
| 27+ | $4.3500 | $117.45 |
| 108+ | $4.3400 | $468.72 |
| 1000+ | $4.0000 | $4000.00 |
| 5000+ | $3.8000 | $19000.00 |
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