PIC32MX775F512LT-80V/BG - 80MHz 512KB Flash MCU | Microchip
MPN: PIC32MX775F512LT-80V/BG ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.95 | $18.95 |
| 10 | $17.05 | $170.50 |
| 100 | $14.85 | $1,485.00 |
| 500 | $12.75 | $6,375.00 |
| 1,000 | $11.25 | $11,250.00 |
PIC32MX775F512LT-80V/BG Overview
A 32-bit microcontroller (MCU) is a single-chip computer that combines a high-performance processor core, on-chip program and data memory, and a rich peripheral set. In the system hierarchy, MCUs sit between simple microcontrollers (8/16-bit) and application processors, trading some processing power for deterministic real-time behavior and ultra-low power budgets. The MIPS M4K core in this device implements the industry-standard MIPS32 instruction set with hardware multiply/divide and single-cycle bit manipulation, making it well-suited to communications stacks that need both throughput and bit-level I/O.
Key features of the PIC32MX775F512LT-80V/BG include an integrated 10/100 Mbit Ethernet MAC for wired networking, two CAN 2.0B controllers for industrial or automotive buses, USB 2.0 On-The-Go (OTG) with integrated PHY, five UART channels, three SPI and four I2C peripherals, a 16-channel 10-bit ADC with 1 Msps conversion rate, five 16-bit timers/counters and five capture/compare/PWM modules. The device operates from 2.3 V to 3.6 V with 51 general-purpose I/O pins, DMA on most peripherals, and an internal 8 MHz RC oscillator with PLL for flexible clocking.
The architecture combines the Harvard-style MIPS M4K core with a multi-layer bus matrix that allows simultaneous DMA-driven peripheral activity and CPU instruction fetches. Code execution is from Flash with single-cycle access from prefetch cache, accelerating loops and interrupt routines. A dedicated DMA controller with 8 channels moves data between peripherals and memory without CPU intervention, offloading packet processing from the core in connected applications.
Typical applications include industrial Ethernet gateways, CAN-based automotive body controllers, USB HID or CDC device controllers, building automation nodes (BACnet/Modbus TCP), and POS terminals. The combination of Ethernet + dual CAN + USB-OTG on a single die is uncommon and removes the need for external bridge chips. When designing, place 100 nF decoupling on every VDD/VSS pair and a 10 uF bulk capacitor near the VCAP pin; respect the TFBGA 0.8 mm ball pitch with NSMD pads and microvia-in-pad for reliable production.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone. Reviewers should treat specifications as authoritative from the official Microchip datasheet and confirm lead time with authorized distributors before committing to high-volume orders.
Drop-in alternatives for PIC32MX775F512LT-80V/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 PIC32MX775F512LT-80V/BG (same form factor and footprint) — differing in ADC, Ethernet MAC, Package, USB, DMA Channels.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX775F512L-80V/BG
✅ Drop-In✓ In Stock
$6.8 / Unit
View Datasheet →PIC32MX775F512L-80I/BG
✅ Drop-In✓ In Stock
$5.86 / Unit
View Datasheet →PIC32MX775F512LT-80I/BG
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX695F512L-80V/BG
✅ Drop-In✓ In Stock
$5.5 / Unit
View Datasheet →PIC32MX675F512L-80V/BG
✅ Drop-In✓ In Stock
$7.1 / Unit
View Datasheet →PIC32MX764F128L-V/BG
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX564F128LT-I/BG
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX775F512LT-80V/BG Maximum Ratings & Electrical Characteristics
| Core | MIPS32 M4K (PIC32MX) |
| Core Architecture | 32-bit RISC |
| Maximum CPU Speed | 80 MHz |
| Program Memory (Flash) | 512 KB |
| Data Memory (SRAM) | 64 KB |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| Operating Temperature | -40C to +105C (V grade) |
| I/O Pins | 51 |
| Package | 121-TFBGA (10x10 mm, 0.8 mm pitch) |
| Ethernet MAC | 10/100 Mbit (integrated, RMII/MII) |
| CAN Controllers | 2 x CAN 2.0B |
| USB | USB 2.0 OTG (integrated transceiver) |
| ADC | 16 channels, 10-bit, 1 Msps |
| UART | 5 |
| SPI | 3 |
| I2C | 4 |
| Timers | 5 x 16-bit |
| Output Compare / PWM | 5 |
| DMA Channels | 8 |
| Mounting Type | Surface Mount (BGA) |
| MSL Level | 3 |
| RoHS Status | Compliant |
PIC32MX775F512LT-80V/BG 121-tfbga (10x10 mm, 0.8 mm pitch) Pin Configuration Guide
Pin configuration for PIC32MX775F512LT-80V/BG (121-tfbga (10x10 mm, 0.8 mm pitch) 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 PIC32MX775F512LT-80V/BG.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC32MX775F512LT-80V/BG is suitable for 7 applications: Industrial Ethernet Gateway, CAN-Based Automotive Body Controller, USB-OTG Device / Host Controller, Building Automation / BACnet Controller, POS Terminal / Embedded Payment Device, Industrial Data Acquisition Module, Audio Streaming / Networked Speaker Controller.
Industrial Ethernet Gateway
The PIC32MX775F512LT-80V/BG is purpose-built for industrial Ethernet gateways where the integrated 10/100 MAC, dual CAN, and USB-OTG enable bridge devices between factory networks (Modbus TCP, EtherNet/IP) and sub-bus CAN nodes without external bridge ICs. At 80 MHz the MIPS M4K core runs the TCP/IP stack with adequate headroom for application logic; the 8 DMA channels keep packet movement off the CPU. Designers typically add an external PHY (e.g. KSZ8041) and a 25 MHz reference; PCB layout must keep the TFBGA 0.8 mm pitch BGA on a 4-layer FR-4 stack-up with microvia-in-pad for reliable production per IPC-7093.
Recommended
CAN-Based Automotive Body Controller
With dual independent CAN 2.0B controllers plus Ethernet and a 16-channel 10-bit ADC, the PIC32MX775F512LT-80V/BG serves as a body or chassis domain controller in non-safety automotive applications. The -40C to +105C 'V' temperature grade handles under-hood environments while the 51 GPIO pins drive lamps, motors, and switch inputs. The 5 output-compare PWM modules support LED dimming and brushed-motor control. Note: this part is not AEC-Q100 qualified; for safety-critical automotive, designers should select PIC32MX575/6xx AEC-Q100 variants or higher-tier SAM3x Cortex-M3 alternatives.
Recommended
USB-OTG Device / Host Controller
The PIC32MX775F512LT-80V/BG integrates a USB 2.0 OTG controller with on-chip transceiver, eliminating external PHY cost and PCB area for USB device, host, or dual-role applications. Use cases include USB HID peripherals (scanners, custom input devices), USB CDC virtual COM bridges, USB mass-storage interfaces, and USB host mode for printers or barcode readers. The 80 MHz core decodes USB traffic at full-/high-speed with low interrupt overhead; the 64 KB SRAM buffers bulk transfers. To meet USB-OTG host-mode current requirements, add a 100 uF bulk capacitor on VBUS and observe USB 2.0 cable-skew rules on DP/DN traces.
Recommended
Building Automation / BACnet Controller
The PIC32MX775F512LT-80V/BG is a strong fit for BACnet/IP and Modbus-TCP building-automation controllers, where the integrated Ethernet MAC connects to building IP networks and the UARTs interface to RS-485 sub-bus field devices. With 512 KB Flash, the MCU stores BACnet object libraries plus application firmware without external memory, and the 64 KB SRAM handles small protocol stacks. The 5 UARTs support multiple RS-485 trunks with external transceivers; the 16 ADC channels read temperature, humidity, and analog sensors. The -40C to +105C grade covers unconditioned mechanical rooms, while the TFBGA package suits compact DIN-rail designs.
Recommended
POS Terminal / Embedded Payment Device
The PIC32MX775F512LT-80V/BG fits point-of-sale terminals that need Ethernet for back-office sync, USB-OTG for PIN pad or printer peripherals, and multiple UARTs for legacy serial peripherals (cash drawer, magnetic-stripe reader). At 80 MHz the core runs TLS handshake and encryption libraries on its MIPS hardware multiply/divide engine, while the 51 GPIO pins drive the keypad, LCD, and indicator LEDs. The 512 KB Flash is adequate for embedded web server + payment library firmware. The 121-TFBGA package suits compact terminal enclosures; pair the MCU with external secure-element for PCI compliance.
Recommended
Industrial Data Acquisition Module
With a 16-channel 10-bit 1 Msps ADC, 51 GPIO, and rich connectivity, the PIC32MX775F512LT-80V/BG serves as the controller for multi-channel industrial data acquisition modules that bridge sensor arrays to Ethernet backbones. The 8 DMA channels offload ADC conversions from the CPU, freeing MIPS for protocol processing and data logging. The dual CAN controllers allow co-located CANopen sensor networks alongside Ethernet uplinks. Designers should respect ADC input-impedance matching and add RC anti-aliasing filters on each analog input; the -40C to +105C temperature grade handles outdoor and factory-floor environments.
Recommended
Audio Streaming / Networked Speaker Controller
The PIC32MX775F512LT-80V/BG can drive networked audio receivers that receive compressed audio over Ethernet (e.g. Dante, AES67) and output I2S streams to a DAC. The 80 MHz MIPS M4K core handles UDP packet reception and audio buffer management, while the SPI/I2S peripherals feed the external DAC. The 64 KB SRAM is sufficient for short audio buffers; larger buffers may need external SRAM. The USB-OTG port serves as an alternate audio source via USB Audio Class. The TFBGA package keeps the design compact for in-wall speaker enclosures.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX775F512LT-80V/BG — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX775F512L-80V/BG | PIC32MX775F512L-80I/BG | PIC32MX775F512LT-80I/BG | PIC32MX695F512L-80V/BG | PIC32MX675F512L-80V/BG | PIC32MX764F128L-V/BG | PIC32MX564F128LT-I/BG |
|---|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 121-TFBGA (10x10 mm) | 121-TFBGA (10x10 mm) - same | 121-TFBGA (10x10 mm) - same | 121-TFBGA (10x10 mm) - same | 121-TFBGA (10x10 mm) - same | 121-TFBGA (10x10 mm) - same | 121-TFBGA (10x10 mm) - same | 121-TFBGA (10x10 mm) - same |
| Core | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 128 KB | 128 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 128 KB | 64 KB | 32 KB | 32 KB |
| Ethernet MAC | Yes (10/100) | Yes (10/100) | Yes (10/100) | Yes (10/100) | Yes (10/100) | Yes (10/100) | Yes (10/100) | Yes (10/100) |
| CAN Controllers | 2 | 2 | 2 | 2 | 0 | 2 | 2 | 0 |
| USB OTG | Yes | Yes | Yes | Yes | Yes | No | Yes | No |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +85C | -40C to +85C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +85C |
| Unit Price (qty 1, USD) | 18.95 | 17.50 | 16.85 | 17.05 | 15.95 | 15.45 | 12.50 | 11.20 |
Key Differentiators
- Triple-connectivity on one die (Ethernet + 2x CAN + USB-OTG) (vs PIC32MX695F512L-80V/BG)
- Higher operating temperature ceiling (vs PIC32MX775F512LT-80I/BG)
- Larger SRAM than lower-tier siblings (vs PIC32MX764F128L-V/BG)
Design Notes
Place a 100 nF ceramic decoupling capacitor on every VDD/VSS ball pair of the 121-TFBGA package. Add a single 10 uF bulk ceramic or low-ESR tantalum capacitor within 5 mm of the VCAP/VDDCORE pin. Use a star-topology ground pour on layer 2 to minimize switching noise injection into analog ADC channels. The 2.3 V minimum supply must be held during programming cycles to avoid Flash corruption; consider a supervisory IC (e.g. MCP1316) on VDD for battery-backed applications.
Estimated: at 80 MHz CPU clock with all peripherals active, the PIC32MX775F512LT-80V/BG consumes around 85 mA from a 3.3 V supply, giving roughly 280 mW dissipation. The 121-TFBGA package (junction-to-ambient thermal resistance around 30 C/W on a 4-layer JEDEC test board) yields a junction temperature rise of 8-10 C above ambient at room temperature. Designers operating at +105C ambient should derate CPU activity or improve PCB thermal dissipation by increasing ground-pour area on inner layers.
For the 121-TFBGA 0.8 mm pitch package, use Non-Solder Mask Defined (NSMD) pads and microvia-in-pad technology on a 4-layer FR-4 stack-up for reliable BGA assembly per IPC-7093. Route signal escape on the top layer with dog-bone fanouts where microvia-in-pad is unavailable. Keep DP/DN USB differential pair impedance-matched at 90 ohms and Ethernet MII/RMII traces within 50 mm total length to avoid signal-integrity issues. Place the 25 MHz Ethernet reference clock trace on the inner layer with continuous ground beneath.
Do not confuse the 'V' (industrial -40C to +105C) temperature grade with the 'E' (automotive -40C to +125C) grade - the latter requires AEC-Q100 qualification which this part does not have. Do not use this device for safety-critical automotive without external supervision. Ensure the JTAG TMS line has a 4.7 kohm pull-up to VDD as specified in the datasheet, or boundary-scan programming will fail. Do not omit the 10 uF bulk on VCAP or the core regulator will enter dropout under DMA bursts.
Compliance Information
RoHS compliant per Microchip product page; not AEC-Q100 qualified (automotive safety-critical applications require AEC-Q100 grade parts). Lead-free matte-tin BGA balls.