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Manufacturer Part #


PIC32MX Series 128 kB Flash 32 kB RAM 40 MHz 32-Bit Microcontroller - QFN-28

ECAD Model:
Mfr. Name: Microchip
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Product Specification Section
Microchip PIC32MX250F128B-I/ML - Technical Attributes
Attributes Table
Family Name: PIC32MX
Core Processor: MIPS32 M4K
Program Memory Type: Flash
Flash Size (Bytes): 128kB
RAM Size: 32kB
Speed: 40MHz
No of I/O Lines: 19
InterfaceType / Connectivity: I2C/I2S/SPI/UART
Peripherals: Analog Comparators/I2C/I2S/On-Chip-ADC/SPI/UART/Watchdog
Number Of Timers: 5
Supply Voltage: 2.3V to 3.6V
Operating Temperature: -40°C to +85°C
On-Chip ADC: 9-chx10-bit
Watchdog Timers: 1
Package Style:  QFN-28
Mounting Method: Surface Mount
Features & Applications
The PIC32MX250F128B-I/ML is a 32-bit microcontroller with audio and graphics interfaces, USB and advanced analog features. Available in a QFN-28 package.

It has flexible and independent ADC trigger sources. It supports mTouch™ capacitive touch sensing and provides high-resolution time measurement (1 ns).


  • Operating Conditions
    • 2.3V to 3.6V, -40ºC to +105ºC, DC to 40 MHz
  • Core: 40 MHz MIPS32® M4K®
    • MIPS16e® mode for up to 40% smaller code size
    • 1.56 DMIPS/MHz (Dhrystone 2.1) performance
    • Code-efficient (C and Assembly) architecture
    • Single-cycle (MAC) 32x16 and two-cycle 32x32 multiply
  • Clock Management
    • 0.9% internal oscillator
    • Programmable PLLs and oscillator clock sources
    • Fail-Safe Clock Monitor (FSCM)
    • Independent Watchdog Timer
    • Fast wake-up and start-up
  • Power Management
    • Low-power management modes (Sleep, Idle)
    • Integrated Power-on Reset and Brown-out Reset
    • 0.5 mA/MHz dynamic current (typical)
  • Audio Interface Features
    • Data communication: I2S, LJ, RJ, DSP modes
    • Control interface: SPI and I2C™
  • Timers/Output Compare/Input Capture
    • Five General Purpose Timers:
    • Five 16-bit and up to two 32-bit Timers/Counters
  • Communication Interfaces
    • USB 2.0-compliant Full-speed OTG controller
    • Two UART modules (10 Mbps)
    • Supports LIN 2.0 protocols and IrDA® support
    • Two 4-wire SPI modules (20 Mbps)
  • Direct Memory Access (DMA)
    • Four channels of hardware DMA with automatic data size detection
    • Two additional channels dedicated for USB
    • Programmable Cyclic Redundancy Check (CRC)
  • Input/Output
    • 15 mA source/sink on all I/O pins
    • 5V-tolerant pins
    • Selectable open drain, pull-ups, and pull-downs
  • Qualification and Class B Support
    • AEC-Q100 REVG (Grade 2 -40ºC to +105ºC) planned
    • Class B Safety Library, IEC 60730
  • Debugger Development Support
    • In-circuit and in-application programming
    • 4-wire MIPS® Enhanced JTAG interface
    • Unlimited program and six complex data breakpoints
Pricing Section
Global Stock:
On Order:
Factory Stock:Factory Stock:
Factory Lead Time:
4 Weeks
Minimum Order:
Multiple Of:
Web Price
Product Variant Information section