PIC32MX575F256LT-80I/BG - 80MHz 32-bit MCU 256KB Flash TFBGA-121
MPN: PIC32MX575F256LT-80I/BG ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $10.5336 | $10.53 |
| 10 | $9.48 | $94.80 |
| 100 | $7.92 | $792.00 |
| 500 | $6.85 | $3,425.00 |
| 1,000 | $5.95 | $5,950.00 |
PIC32MX575F256LT-80I/BG Overview
A microcontroller (MCU) is a programmable system-on-chip that combines a CPU core, memory, and peripherals to execute embedded firmware in real time. The PIC32MX family extends this concept with a 32-bit MIPS core that delivers significantly higher computational throughput than 8-bit or 16-bit MCUs, while maintaining deterministic interrupt behaviour. Within the wider taxonomy, this part belongs to: microcontroller -> 32-bit MCU -> MIPS MCU -> PIC32MX family -> USB-and-CAN enabled tier.
Key features include 256 KB (256K x 8) of in-system self-programmable Flash, 64 KB of SRAM, 53 general-purpose I/O pins, multiple UART, SPI, and I2C peripherals, and a 16-bit parallel master port for external memory or graphics interfacing. The integrated USB 2.0 full-speed transceiver supports device, host, and OTG operation, removing the need for an external PHY in many designs.
Typical applications include industrial control with CAN-bus connectivity, USB peripherals such as HID and CDC devices, graphical HMI panels using the parallel master port, embedded data loggers, and low-cost USB-to-UART bridges. The wide operating voltage of 2.5 V to 3.6 V and industrial temperature range of -40 C to +85 C suit factory-floor and outdoor installations.
When designing with this part, ensure the TFBGA-121 land pattern meets IPC-7351 ball-pitch tolerances and that decoupling is placed within 2 mm of each power ball. For new designs, also evaluate the newer PIC32MX1xx/2xx families for lower power consumption and the PIC32MK family for higher performance.
This page synthesises verified distributor pricing, parametric drop-in alternatives from the same PIC32MX family, and practical design notes not aggregated on a single manufacturer page.
Drop-in alternatives for PIC32MX575F256LT-80I/BG — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC32MX575F256LT-80I/BG (same form factor and footprint) — differing in ADC, Operating Temperature, Package, DMA Channels, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX575F256L-80I/BG
✅ Drop-In✓ In Stock
$6.12 / Unit
View Datasheet →PIC32MX575F256LT-80V/BG
✅ Drop-In✓ In Stock
$6.84 / Unit
View Datasheet →PIC32MX575F256L-80V/BG
✅ Drop-In✓ In Stock
$5.07 / Unit
View Datasheet →PIC32MX564F128L-I/BG
✅ Drop-In✓ In Stock
$5.7 / Unit
View Datasheet →PIC32MX564F128LT-I/BG
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX575F256LT-80I/BG Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K |
| Core Count | 1 (Single-Core) |
| Data Bus Width | 32-bit |
| Maximum Clock Speed | 80 MHz |
| Program Memory (Flash) | 256 KB (256K x 8) |
| SRAM | 64 KB |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| I/O Pins | 53 |
| ADC | 10-bit, 16-channel |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| CAN | 1 x CAN 2.0B |
| Package | 121-TFBGA (10 mm x 10 mm) |
| Mounting Type | Surface Mount (BGA) |
| Operating Temperature | -40 C to +85 C (Industrial) |
| RoHS Status | Compliant |
PIC32MX575F256LT-80I/BG 121-tfbga (10 mm x 10 mm) Pin Configuration Guide
Pin configuration for PIC32MX575F256LT-80I/BG (121-tfbga (10 mm x 10 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC32MX575F256LT-80I/BG.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC32MX575F256LT-80I/BG is suitable for 6 applications: USB-to-UART Bridge Bridge, Industrial CAN-Bus Node, USB HID Peripheral (Keyboard / Mouse / Custom HID), Graphical HMI Display Controller, Data Logger with USB and CAN, Automotive-Grade CAN Gateway (AEC-Q100 context).
USB-to-UART Bridge Bridge
The PIC32MX575F256LT-80I/BG is well suited to USB-to-UART bridge designs because its 80 MHz MIPS core, 256 KB Flash, and integrated USB 2.0 full-speed device controller remove the need for an external PHY. With 64 KB of SRAM available, designers can buffer large CDC frames while running at the full 12 Mbps USB rate. The 53 GPIO pins can serve as RTS/CTS handshaking lines, multiple UART bridges, and status LEDs.
Recommended
Industrial CAN-Bus Node
In industrial CAN-bus nodes (CANopen, DeviceNet), the PIC32MX575F256LT-80I/BG's integrated CAN 2.0B controller with 32 mailboxes and ISO 11898-1 compliance supports standard and extended identifiers at up to 1 Mbps. The 256 KB Flash holds bootloader plus CANopen stack, while 64 KB SRAM buffers protocol PDOs. The industrial -40 C to +85 C operating range and 2.3 V to 3.6 V supply cover 24 V factory-floor rails, then back to 3.3 V regulation.
Recommended
USB HID Peripheral (Keyboard / Mouse / Custom HID)
The PIC32MX575F256LT-80I/BG handles USB HID-class devices natively: 53 GPIO pins drive keyboard matrices, mice sensors, or custom HID buttons, while 64 KB SRAM buffers HID events. Microchip's MPLAB Harmony USB HID stack supports boot-loader and runtime HID classes and runs comfortably at 80 MHz. The 121-TFBGA package supports dense PCB layouts while keeping the USB bus within 20 mm of the connector to meet USB 2.0 signal-integrity rules.
Recommended
Graphical HMI Display Controller
For graphical HMI panels, the PIC32MX575F256LT-80I/BG's 16-bit Parallel Master Port (PMP) drives TFT LCDs up to QVGA resolution at full frame speed, while 64 KB SRAM holds the framebuffer or tile map. The 256 KB Flash accommodates large image assets and Unicode fonts. The 80 MHz MIPS core can refresh screens in parallel with USB and CAN traffic, making this part a good fit for compact industrial control panels.
Recommended
Data Logger with USB and CAN
In embedded data loggers, the PIC32MX575F256LT-80I/BG streams ADC and CAN bus data over USB while logging to external SPI Flash. The 80 MHz MIPS core executes concurrent ADC sampling (10-bit, up to 1 Msps), CAN 2.0B reception at 500 kHz, and USB CDC transmission to a host PC. The 53 GPIO pins include enough spare I/O for SD card interfaces, RTC chips, and external SPI sensors.
Recommended
Automotive-Grade CAN Gateway (AEC-Q100 context)
Although the PIC32MX575F256LT-80I/BG is industrial-grade, designers prototyping automotive CAN gateways can use it as a development platform before migrating to the AEC-Q100 qualified PIC32MX1xx or PIC32MX5xx automotive variants. The integrated CAN 2.0B and 80 MHz MIPS core handle OBD-II and CAN-FDbus preliminary testing. Pair it with a MCP2551 or MCP2562 CAN transceiver for full bus isolation during bench validation.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX575F256LT-80I/BG — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX575F256L-80I/BG | PIC32MX575F256LT-80V/BG | PIC32MX564F128L-I/BG |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 121-TFBGA (10x10) | 121-TFBGA (10x10) - same | 121-TFBGA (10x10) - same | 121-TFBGA (10x10) - same |
| Packing | Tape & Reel | Tray | Tape & Reel | Tray |
| Flash | 256 KB | 256 KB | 256 KB | 128 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 32 KB |
| Max Clock Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| USB | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG |
| Operating Temperature | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +105 C (V) | -40 C to +85 C (I) |
Key Differentiators
- Highest Flash/SRAM in the 121-TFBGA PIC32MX5xx tier (vs PIC32MX564F128L-I/BG)
- Industrial temperature range with same footprint as extended temp variant (vs PIC32MX575F256LT-80V/BG)
- Same silicon in Tape-and-Reel packing for production lines (vs PIC32MX575F256L-80I/BG)
Design Notes
For the 121-TFBGA 0.8 mm ball-pitch package, follow IPC-7351 nominal land recommendations: non-solder-mask-defined (NSMD) pads are strongly recommended for modular drilling and reworkability. Place a 0.1 uF X7R decoupling capacitor within 2 mm of each VDD/VSS ball pair, and provide a continuous ground plane on the second layer to ensure low-impedance return paths for USB 2.0 full-speed signalling (12 Mbps).
Decouple the PIC32MX575F256LT-80I/BG's 2.3 V to 3.6 V supply with bulk tantalum or ceramic capacitors plus 100 nF ceramic capacitors near every VDD ball. The internal USB transceiver draws up to 50 mA during bus activity, so a low-noise LDO such as TPS217 is recommended upstream; avoid switching regulators that share the USB signal-return path. Estimate: at 80 MHz with all peripherals active, core draw current varies from a datasheet-specified range; check the latest DS61121G revision for the exact IDD figure before designing the power budget.
Do not assume JTAG pins are 5 V tolerant: they are 3.3 V only, and applying 5 V to any I/O can latch-up the part. For production programming, configure the PPS (Peripheral Pin Select) registers early in init code before configuring USB or CAN - otherwise the USB D+/D- lines will not route to the correct physical pins. Also confirm that the VBUS pin is tied to the 5 V USB VBUS through the recommended 0.1 uF decoupling per the Microchip hardware checklist.
Compliance Information
RoHS compliant (TQFP-64 family datasheet notes LEAD FREE, PLASTIC packaging); lead-free per Microchip product page. Not AEC-Q100 qualified - use PIC32MX automotive variants for AEC-Q100 designs. Halogen-free status not stated in verified data.
