PIC32MX460F512L-80V/BG - 32-bit 80MHz MCU 512KB Flash USB-OTG | Microchip
MPN: PIC32MX460F512L-80V/BG ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $8.92 | $89.20 |
| 100 | $7.55 | $755.00 |
| 500 | $6.78 | $3,390.00 |
| 1,000 | $6.1 | $6,100.00 |
PIC32MX460F512L-80V/BG Overview
A microcontroller (MCU) is an integrated circuit combining a CPU core, program and data memory, peripherals, and I/O on a single die. The PIC32MX family sits at the high-performance end of Microchip's 32-bit MCU portfolio, targeting applications that need more compute than 8-bit PIC MCUs but where the simplicity of a single-core MIPS core is preferable to Cortex-M-class devices. The PIC32MX460F512L-80V/BG specifically belongs to the "USB" sub-family, adding USB-OTG to the standard peripherals of UART, SPI, I2C, timers, and ADC.
Key features include up to 85 general-purpose I/O, a 10-bit ADC with up to 16 channels and 1 Msps conversion, five 16-bit timers, two I2C, two SPI, and two UART modules. The USB-OTG controller includes an integrated transceiver, dedicated DMA channel, and supports host, device, and On-The-Go roles. Hardware multiply and divide are single-cycle, and the MIPS16e ISA mode reduces code size by up to 40% for size-critical applications.
Architecturally, the chip uses a Harvard memory structure with separate 32-bit instruction and data buses feeding the M4K core, allowing simultaneous fetch and memory access. The peripheral bus runs at PBCLK derived from the system clock, allowing peripheral speed to be traded against CPU performance. This separation lets the USB controller and DMA engines operate independently of the CPU.
Typical applications include USB peripherals such as HID input devices, CDC virtual COM ports, and MSD storage; industrial control front-ends; embedded web/HMI panels using the USB or UART for host connectivity; and USB host controllers for sensor hubs. The 80 MHz speed and 512 KB Flash comfortably accommodate USB stacks plus application code in a single chip.
When designing with this part, plan for an external 8 MHz crystal to drive the PLL that synthesizes 80 MHz, since the on-chip USB clock accuracy is critical for USB compliance. The 121-ball BGA requires careful PCB layout - controlled-impedance traces for the USB DP/DM lines and a solid ground pour are essential.
This page synthesizes distributor pricing, drop-in alternatives from the PIC32MX family, and practical BGA-layout design notes not found in a single manufacturer document.
Drop-in alternatives for PIC32MX460F512L-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 PIC32MX460F512L-80V/BG (same form factor and footprint) — differing in ADC, Package, DMA Channels, Core Architecture, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX460F512LT-80V/BG
✅ Drop-In✓ In Stock
$4.85 / Unit
View Datasheet →PIC32MX460F512L-80I/BG
✅ Drop-In✓ In Stock
$6.45 / Unit
View Datasheet →PIC32MX440F512H-80V/BG
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX460F256L-80V/BG
✅ Drop-In✓ In Stock
$7.6 / Unit
View Datasheet →PIC32MX360F512L-80V/BG
✅ Drop-In✓ In Stock
$6.65 / Unit
View Datasheet →PIC32MX450F256L-80V/BG
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX460F512L-80V/BG Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Clock | 80 MHz (105 DMIPS) |
| DMIPS/MHz | 1.56 |
| Program Flash Memory | 512 KB |
| SRAM | 32 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| USB Interface | USB 2.0 Full-Speed On-The-Go with integrated PHY |
| DMA Channels | 4 (one dedicated to USB) |
| General-Purpose I/O | 85 |
| ADC | 10-bit, up to 16 channels, 1 Msps |
| Timers | 5 x 16-bit |
| UART | 2 |
| SPI | 2 |
| I2C | 2 |
| Package | 121-ball TFBGA (BG) 10x10 mm |
| Temperature Range (V suffix) | -40C to +105C |
| Mounting Type | Surface Mount |
| Lead-Free / RoHS | Lead-free / RoHS compliant |
PIC32MX460F512L-80V/BG Pin Configuration
| Pin A1 | NC — Not connected (per datasheet) |
| Pin A2 | OSC1 — Crystal oscillator input |
| Pin A3 | OSC2 — Crystal oscillator output |
| Pin A4 | VDD — Supply voltage |
| Pin A5 | VSS — Ground |
| Pin A6 | PGED2 — Programming/debug data |
| Pin A7 | PGEC2 — Programming/debug clock |
| Pin A8 | VBUS — USB VBUS sense |
| Pin A9 | D+ — USB D+ data line |
| Pin A10 | D- — USB D- data line |
| Pin A11 | NC — Not connected (per datasheet) |
| Pin B1 | RF0 — GPIO/IO port F0 |
| Pin B2 | RF1 — GPIO/IO port F1 |
| Pin B3 | VDD — Supply voltage |
| Pin B4 | VSS — Ground |
| Pin B5 | PGED1 — Programming/debug data |
| Pin B6 | PGEC1 — Programming/debug clock |
| Pin B7 | TRCLK — Trace clock output |
| Pin B8 | TRD0 — Trace data output |
| Pin B9 | TRD1 — Trace data output |
| Pin B10 | RG3 — GPIO/IO port G3 |
| Pin B11 | RG2 — GPIO/IO port G2 |
Typical Applications
PIC32MX460F512L-80V/BG is suitable for 7 applications: USB Human Interface Device (HID), USB CDC Virtual COM Port Bridge, USB Mass Storage Device (MSD), Embedded USB Host Sensor Hub, Industrial Control Front-End with USB Logging, HMI Touch Panel Controller, USB-Connected Data Acquisition (DAQ).
USB Human Interface Device (HID)
The PIC32MX460F512L-80V/BG is a strong fit for USB HID peripherals such as keyboards, mice, game controllers, and custom input devices. The integrated USB 2.0 full-speed OTG controller with on-chip PHY eliminates external transceiver components, while the dedicated USB DMA channel sustains 64-byte endpoint transfers without CPU intervention. At 80 MHz the M4K core leaves ample headroom for HID class driver plus application logic in the 512 KB Flash. Designers pair this part with Microchip's MLA USB HID stack, achieving enumeration in under 5 ms after USB attach.
Recommended
USB CDC Virtual COM Port Bridge
For industrial converter and debugging bridges, the PIC32MX460F512L-80V/BG runs a USB CDC class device that emulates a serial port over USB, eliminating legacy UART cables. The 80 MHz MIPS32 M4K core sustains 921600 baud throughput without flow-control overrun thanks to the dedicated USB DMA channel. The two on-chip UART modules serve as the wired side, supporting RS-232/485 transceivers directly. Industrial users benefit from the -40C to +105C V-temperature grade for factory-floor deployments.
Recommended
USB Mass Storage Device (MSD)
The PIC32MX460F512L-80V/BG can run a USB MSD class device when paired with an external SD card or NAND flash controller over SPI or a parallel bus. The four hardware DMA channels drive the SD card sector transfers at full USB full-speed (12 Mbps) line rate while the CPU handles FAT file-system metadata. The 512 KB Flash hosts the MLA USB MSD stack plus FAT16/32 file-system library without external memory, and the 32 KB SRAM provides the 512-byte SCSI buffer plus scratch sectors.
Recommended
Embedded USB Host Sensor Hub
In USB host roles, the PIC32MX460F512L-80V/BG enumerates and manages downstream devices such as USB mice, keyboards, barcode scanners, and weighing scales. The USB OTG controller's host role supplies 5 V VBUS via an external charge pump or load switch (since the MCU's VBUS pin is 5V-tolerant input only). This part is widely deployed in industrial HMI panels and POS terminals where a touchscreen is paired with a USB scanner. The 105 DMIPS compute handles HID, CDC, and proprietary USB class stacks simultaneously.
Recommended
Industrial Control Front-End with USB Logging
Process-control front ends combine the PIC32MX460F512L-80V/BG with a 10-bit ADC for analog sensor capture (up to 16 channels, 1 Msps), PWM outputs for actuator control (five 16-bit timers), and USB for host configuration and data export. The MIPS32 M4K's hardware single-cycle multiply enables real-time PID loops at microsecond rates. The 121-ball BGA's compact 10x10 mm footprint allows integration into DIN-rail modules, and the V-temperature grade supports factory-floor ambient up to +105C.
Recommended
HMI Touch Panel Controller
For HMI panels with capacitive touch, the PIC32MX460F512L-80V/BG drives the touch controller over I2C or SPI while serving USB for firmware update and configuration. The 80 MHz core drives LVGL or Microchip's Aria Graphics library to refresh QVGA LCDs over parallel 8-bit PMP. Two UART, two SPI, and two I2C provide ample peripheral bandwidth for touch controller, LCD, audio codec, and external EEPROM. The 512 KB Flash accommodates the GUI library plus application pages in a single chip.
Recommended
USB-Connected Data Acquisition (DAQ)
Laboratory and field DAQ systems use the PIC32MX460F512L-80V/BG to stream ADC samples over USB to a host PC at full-speed (12 Mbps). The dedicated USB DMA channel sustains up to 800 ksamples/s continuous capture from the 1 Msps 10-bit ADC, with the 32 KB SRAM buffering one full packet before the CPU commits samples to the host. The 512 KB Flash stores calibration constants and trigger logic, and the -40 to +105C V-temperature grade supports outdoor and automotive test cells.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX460F512L-80V/BG — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX460F512LT-80V/BG | PIC32MX460F512L-80I/BG | PIC32MX440F512H-80V/BG | PIC32MX460F256L-80V/BG | PIC32MX360F512L-80V/BG | PIC32MX450F256L-80V/BG |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 121-ball TFBGA (BG) 10x10 mm | 121-ball TFBGA (BG) 10x10 mm - same | 121-ball TFBGA (BG) 10x10 mm - same | 121-ball TFBGA (BG) 10x10 mm - same | 121-ball TFBGA (BG) 10x10 mm - same | 121-ball TFBGA (BG) 10x10 mm - same | 121-ball TFBGA (BG) 10x10 mm - same |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB (-50%) | 512 KB | 256 KB (-50%) |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| Maximum Clock | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| USB Support | USB 2.0 OTG with integrated PHY | USB 2.0 OTG with integrated PHY | USB 2.0 OTG with integrated PHY | USB 2.0 Device (no OTG host) | USB 2.0 OTG with integrated PHY | USB 2.0 Device (no OTG host) | USB 2.0 Device (no OTG host) |
| Operating Temperature | -40C to +105C (V-temp) | -40C to +105C (V-temp) | -40C to +85C (I-temp) | -40C to +105C (V-temp) | -40C to +105C (V-temp) | -40C to +105C (V-temp) | -40C to +105C (V-temp) |
| DMA Channels | 4 (1 dedicated to USB) | 4 (1 dedicated to USB) | 4 (1 dedicated to USB) | 4 (1 dedicated to USB) | 4 (1 dedicated to USB) | 4 (1 dedicated to USB) | 4 (1 dedicated to USB) |
| GPIO Count | 85 | 85 | 85 | 85 | 85 | 85 | 85 |
| Approx. Unit Price @ 1000pcs (USD) | 6.10 | 6.10 | 5.85 | 5.95 | 5.40 | 5.20 | 5.10 |
Key Differentiators
- Integrated USB-OTG with on-chip PHY and dedicated DMA channel (vs PIC32MX440F512H-80V/BG)
- Largest Flash in the BGA-packaged USB 80 MHz family (vs PIC32MX460F256L-80V/BG)
- V-temperature grade (-40C to +105C) versus industrial -85C (vs PIC32MX460F512L-80I/BG)
Design Notes
The 121-ball TFBGA package (10x10 mm, 0.8 mm pitch) requires via-in-pad (VIPPO) or microvia escape routing per IPC-7093. Microchip AN833 (BGA design) recommends microvia-on-pad for the inner rows and a 1.0 mm via-to-ball clearance. A solid uninterrupted ground plane beneath the BGA improves thermal dissipation and signal integrity; this is critical for the USB DP/DM pair. Place the 8 MHz crystal within 5 mm of OSC1/OSC2 with grounded guard traces to minimize jitter.
USB DP/DM traces must be 90 ohm differential impedance with length matching within 0.5 mm to comply with USB 2.0 full-speed signalling. Per USB 2.0 specification, place the 15 kohm pull-down resistors on DP and DM as close to the device pins as possible. The VBUS pin requires a 100 nF decoupling cap and a 1 kohm series resistor to the upstream VBUS rail. Avoid routing USB signals across plane splits, which add common-mode choke risk.
Decouple the PIC32MX460F512L-80V/BG with 100 nF ceramic caps at every VDD/VSS pair (typically 6-8 pairs), plus a bulk 4.7 uF tantalum or 10 uF ceramic on the main 3.3 V rail. The core supply (VDDCORE) is internally regulated from VDD on this family, but a 1 uF cap on the VDDCORE pin is required per datasheet section. During USB bus-powered operation, ensure the 5 V VBUS detection threshold is correctly configured to avoid phantom enumeration.
When designing USB OTG host applications, remember that the USB VBUS pin on the MCU is a 5V-tolerant input only - it cannot source 5 V VBUS to downstream devices. An external charge pump (e.g., Microchip MCP1252) or load switch is required to deliver host VBUS. Also note that the dedicated USB DMA channel only supports 64-byte endpoint packets; bulk transfers larger than 64 bytes must be packetized by software. Designers commonly overlook that the -80V speed grade part's ADC is rated 1 Msps but only with the dedicated ADC RC oscillator; with the system PLL jitter is higher.
At full 80 MHz operation with all peripherals active, the PIC32MX460F512L-80V/BG draws approximately 80 mA from VDD (3.3 V) for about 264 mW of dissipation. The 121-ball TFBGA has theta_JA around 35 C/W on a 4-layer JEDEC test board, so the die temperature rises roughly 9.3 C above ambient. At 105C ambient this keeps the die at 114 C, within the 125 C junction maximum. For V-temperature designs near 105C, add thermal vias under the center BGA pads to a ground pour.
Compliance Information
RoHS and lead-free confirmed via Microchip product page and DigiKey listing. AEC-Q100 not qualified - not intended for automotive safety-critical applications; for AEC-Q100 use SAM E70 or PIC32MK family instead.
