PIC32MX220F032B

Part: PIC32MX270F256B — Microchip Technology

Type: 32-bit Microcontroller

Description: 50 MHz MIPS32 M4K-based 32-bit microcontroller featuring 256 KB Flash, 64 KB SRAM, USB 2.0 Full-Speed OTG, and advanced audio and analog interfaces.

Operating Conditions:

• Supply voltage: 2.3 to 3.6 V
• Operating temperature: -40 to +85 °C (DC to 50 MHz) or -40 to +105 °C (DC to 40 MHz)
• Maximum core frequency: 50 MHz (83 DMIPS)

Key Specs:

• Core: MIPS32 M4K running up to 50 MHz
• Flash memory: 256 KB (+ 3 KB boot Flash)
• SRAM: 64 KB
• ADC: 10-bit, 1.1 Msps with up to 9 channels
• Dynamic current: 0.5 mA/MHz (typical)
• Power-down current (IPD): 20 μA (typical)
• I/O current: 10 mA source/sink (up to 14 mA on non-standard VOH)
• DMA channels: 4 programmable, 2 dedicated to USB

Features:

• USB 2.0-compliant Full-speed OTG controller
• Audio interface supporting I2S, LJ, RJ, and DSP modes with fractional clock tuning
• Peripheral Pin Select (PPS) for flexible I/O remapping
• Charge Time Measurement Unit (CTMU) for capacitive touch sensing and 1 ns time measurement
• 5 V-tolerant digital I/O pins
• Two UART (12.5 Mbps), two SPI/I2S (25 Mbps), and two I2C modules (up to 1 Mbaud)
• Three analog comparators with 32-point programmable reference voltage
• Hardware Real-Time Clock and Calendar (RTCC)

Applications:

• Audio and graphics embedded processing
• USB device and embedded host peripherals
• Capacitive touch sensing interfaces
• General-purpose embedded control

Package:

• 28-pin SOIC (17.90 x 7.50 x 2.65 mm)
• 28-pin SSOP (10.2 x 5.3 x 2 mm)
• 28-pin SPDIP (1.365" x 0.285" x 0.135")
• 28-pin QFN (6 x 6 x 0.9 mm)

• 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

This section provides an overview of the PIC32MX1XX/2XX electrical characteristics for devices that operate at 40 MHz. Refer to Section 30.0 '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 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.

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