Part: PIC32MX1XX/2XX — null

Type: 32-bit Microcontrollers

Description: 32-bit MIPS32 M4K microcontrollers operating up to 50 MHz/83 DMIPS, with up to 256 KB Flash and 64 KB SRAM, featuring audio and graphics interfaces, USB, and advanced analog capabilities.

Operating Conditions:

• Supply voltage: 2.3V to 3.6V
• Operating temperature: -40 to +85 °C
• Max clock frequency: 50 MHz

Features:

• MIPS16e mode for up to 40% smaller code size
• 0.9% internal oscillator, programmable PLLs, Fail-Safe Clock Monitor
• Low-power management modes (Sleep and Idle)
• Integrated Power-on Reset and Brown-out Reset
• Audio Interface: I2S, LJ, RJ, DSP modes, SPI and I2C control, fractional clock generation
• ADC Module: 10-bit, 1.1 Msps rate with one S&H, up to 13 analog inputs
• Charge Time Measurement Unit (CTMU) for mTouch capacitive touch sensing, 1 ns resolution, on-chip temperature measurement
• Up to three Analog Comparator modules with programmable references
• Five General Purpose Timers (16-bit and 32-bit), five Output Compare, five Input Capture modules
• Real-Time Clock and Calendar (RTCC) module
• USB 2.0-compliant Full-speed OTG controller
• Two UART modules (12.5 Mbps) with LIN 2.0 and IrDA support
• Two 4-wire SPI modules (25 Mbps)
• Two I2C modules (up to 1 Mbaud) with SMBus support
• Parallel Master Port (PMP)
• Four channels of hardware DMA with automatic data size detection, two additional channels for USB
• Programmable Cyclic Redundancy Check (CRC)
• 10 mA source/sink on all I/O pins, 5V-tolerant pins
• Selectable open drain, pull-ups, and pull-downs
• External interrupts on all I/O pins
• In-circuit and in-application programming, 4-wire MIPS Enhanced JTAG interface

Package:

• SOIC (28-pin)
• SSOP (28-pin)
• SPDIP (28-pin)
• QFN (28-pin, 44-pin)
• VTLA (36-pin, 44-pin)
• TQFP (44-pin)

• Data communication: I 2 S, LJ, RJ, and DSP modes
• Control interface: SPI and I 2 C
• Master clock:
• -Generation of fractional clock frequencies
• -Can be synchronized with USB clock
• -Can be tuned in run-time

PIC32MX250F128B Pinout

Package: 28-pin SOIC, SPDIP, SSOP

Notes

• All I/O port pins (RAx, RBx) can be configured as change notification pins (CNAx, CNBx).
• Shaded pins in the original datasheet (pins 2, 3, 4, 5, 6, 7, 14, 15, 16, 17, 18, 21, 22, 24, 25, 26) are 5V tolerant.
• RPx pins are remappable peripheral pins; see Section 11.3 "Peripheral Pin Select" for configuration details.
• VCAP (pin 20) requires a 10 µF decoupling capacitor to ground.

This section provides an overview of the PIC32MX1XX/2XX 28/36/44-pin Family electrical characteristics for devices that operate at 40 MHz. Refer to Section 31.0 '50 MHz Electrical Characteristics' for additional specifications for operations at higher frequency. Additional information will be provided in future revisions of this document as it becomes available.

Absolute maximum ratings for the PIC32MX1XX/2XX 28/36/44-pin Family devices are listed below. Exposure to these maximum rating conditions for extended periods may affect device reliability. Functional operation of the device at these or any other conditions, above the parameters indicated in the operation listings of this specification, is not implied.

(See Note 1)

Note 1: Stresses above those listed under 'Absolute Maximum Ratings' may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions, above those indicated in the operation listings of this specification, is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

• 2: Maximum allowable current is a function of device maximum power dissipation (see Table 30-2).
• 3: See the 'Pin Diagrams' section for the 5V tolerant pins.

Examples of typical application connections are shown

in Figure 2-5 and Figure 2-6.

FIGURE 2-5: CAPACITIVE TOUCH SENSING WITH GRAPHICS APPLICATION

FIGURE 2-6: AUDIO PLAYBACK APPLICATION