PIC32MX534F064H-I/MR - 80MHz 32-bit MCU 64KB Flash USB/CAN | Microchip
MPN: PIC32MX534F064H-I/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.95 | $7.95 |
| 10 | $7.2 | $72.00 |
| 100 | $6.5 | $650.00 |
| 500 | $5.85 | $2,925.00 |
| 1,000 | $5.2 | $5,200.00 |
PIC32MX534F064H-I/MR Overview
Background: a microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data memory, and a rich set of on-chip peripherals such as timers, communication controllers, and analog blocks. The PIC32MX5xx family is a MIPS32 M4K-based line positioned at the high end of Microchip's PIC32 portfolio, adding USB and CAN connectivity for embedded networking. PIC32MX5xx belongs to the broader class of 32-bit flash microcontrollers and inherits the wider PIC32MX1xx/2xx/3xx/4xx/5xx/6xx/7xx family tree.
Key features include 64 KB Flash, 16 KB SRAM, an 80 MHz core delivering 1.56 DMIPS/MHz, 4-channel DMA, full-speed USB 2.0 device/host/OTG, CAN 2.0B, five 16-bit timers, two I2C, two SPI, two UART channels, a 16-channel 10-bit ADC at 1 Msps, and four parallel 16-bit comparators. The MR (VQFN-64 9x9) package exposes a thermal pad that reduces junction-to-board thermal resistance.
Architecturally, the M4K core executes a 5-stage pipeline with single-cycle multiply and hardware divide, while the peripheral bus matrix allows concurrent DMA transfers between peripherals and RAM without CPU intervention. The 16 KB SRAM is split between general-purpose RAM and dedicated Ethernet/USB/CAN buffer areas.
Typical applications include USB peripherals such as HID or CDC class devices, CAN-connected industrial sensor nodes, embedded TCP/IP stacks with the Microchip MLA, low-cost graphic LCD control with the PMP peripheral, and small HMI panels combining USB touch with CAN I/O expansion.
Designers should budget for the VQFN exposed-pad PCB layout (thermal vias to the inner ground plane are required for the -I industrial temperature range, -40 to +85 C) and provision a 12 MHz high-speed oscillator plus the 32 kHz low-power crystal for USB full-speed operation.
This page consolidates distributor pricing, drop-in same-package alternatives, and practical layout guidance that go beyond the manufacturer datasheet, helping sourcing teams and engineers evaluate PIC32MX534F064H-I/MR in one place.
Drop-in alternatives for PIC32MX534F064H-I/MR — 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 PIC32MX534F064H-I/MR (same form factor and footprint) — differing in Operating Temperature, Package, ADC, DMA Channels, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX534F064HT-I/MR
✅ Drop-In✓ In Stock
$3.42 / Unit
View Datasheet →PIC32MX534F064H-I/PT
✅ Drop-In✓ In Stock
$3.95 / Unit
View Datasheet →PIC32MX564F064H-I/MR
✅ Drop-In✓ In Stock
$4.38 / Unit
View Datasheet →PIC32MX575F512H-I/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX534F064H-V/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX534F064HT-V/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX534F064H-I/MR Maximum Ratings & Electrical Characteristics
| Core | MIPS32 M4K |
| Data Bus Width | 32-bit |
| Maximum Clock Frequency | 80 MHz |
| Program Memory Size (Flash) | 64 KB (64K x 8) |
| Data RAM Size | 16 KB |
| Operating Supply Voltage | 2.3 V to 3.6 V |
| Operating Temperature Range | -40 C to +85 C (industrial) |
| Package | VQFN-64 (MR) 9x9 mm with exposed thermal pad |
| Number of I/O Pins | 53 |
| ADC | 10-bit, 16 channels, 1 Msps |
| Timers | 5 x 16-bit |
| Communication Interfaces | USB 2.0 Full-Speed (Device/Host/OTG), CAN 2.0B, 2x I2C, 2x SPI, 2x UART |
| DMA Channels | 4 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC32MX534F064H-I/MR Pin Configuration
| Pin 1 | RG15 — General purpose I/O / SDA2 |
| Pin 2 | VDD — Core supply voltage 2.3-3.6 V |
| Pin 3 | RF0 — General purpose I/O |
| Pin 4 | RF1 — General purpose I/O |
| Pin 5 | RG6 — General purpose I/O |
| Pin 6 | RG7 — General purpose I/O |
| Pin 7 | RG8 — General purpose I/O |
| Pin 8 | RG9 — General purpose I/O |
| Pin 9 | VSS — Ground |
| Pin 10 | RA0 — General purpose I/O / AN0 / VREF+ |
| Pin 11 | RA1 — General purpose I/O / AN1 / VREF- |
| Pin 12 | RA2 — General purpose I/O / AN2 |
| Pin 13 | RA3 — General purpose I/O / AN3 |
| Pin 14 | RA4 — General purpose I/O / AN4 |
| Pin 15 | RA5 — General purpose I/O / AN5 |
| Pin 16 | RA6 — General purpose I/O / AN6 |
| Pin 17 | RA7 — General purpose I/O / AN7 |
| Pin 18 | RB0 — General purpose I/O / AN8 / PGED1 |
| Pin 19 | RB1 — General purpose I/O / AN9 / PGEC1 |
| Pin 20 | RB2 — General purpose I/O / AN10 |
| Pin 21 | RB3 — General purpose I/O / AN11 |
| Pin 22 | RB4 — General purpose I/O / AN12 |
| Pin 23 | RB5 — General purpose I/O / AN13 |
| Pin 24 | RB6 — General purpose I/O / AN14 / PGED2 |
| Pin 25 | RB7 — General purpose I/O / AN15 / PGEC2 |
| Pin 26 | RB8 — General purpose I/O |
| Pin 27 | RB9 — General purpose I/O |
| Pin 28 | RB10 — General purpose I/O |
| Pin 29 | RB11 — General purpose I/O |
| Pin 30 | RB12 — General purpose I/O |
| Pin 31 | RB13 — General purpose I/O |
| Pin 32 | RB14 — General purpose I/O |
| Pin 33 | RB15 — General purpose I/O |
| Pin 34 | VSS — Ground |
| Pin 35 | VDD — Core supply voltage 2.3-3.6 V |
| Pin 36 | RC1 — General purpose I/O |
| Pin 37 | RC2 — General purpose I/O |
| Pin 38 | RC3 — General purpose I/O |
| Pin 39 | RC4 — General purpose I/O |
| Pin 40 | VDD — Core supply voltage 2.3-3.6 V |
| Pin 41 | VSS — Ground |
| Pin 42 | RC13 — General purpose I/O |
| Pin 43 | RC14 — General purpose I/O / OSC1 |
| Pin 44 | RC15 — General purpose I/O / OSC2 |
| Pin 45 | RD0 — General purpose I/O |
| Pin 46 | RD1 — General purpose I/O |
| Pin 47 | RD2 — General purpose I/O |
| Pin 48 | RD3 — General purpose I/O |
| Pin 49 | RD4 — General purpose I/O |
| Pin 50 | RD5 — General purpose I/O |
| Pin 51 | RD6 — General purpose I/O |
| Pin 52 | RD7 — General purpose I/O |
| Pin 53 | RD8 — General purpose I/O |
| Pin 54 | RD9 — General purpose I/O |
| Pin 55 | RD10 — General purpose I/O |
| Pin 56 | RD11 — General purpose I/O |
| Pin 57 | RD12 — General purpose I/O |
| Pin 58 | RD13 — General purpose I/O |
| Pin 59 | RD14 — General purpose I/O |
| Pin 60 | RD15 — General purpose I/O |
| Pin 61 | RG0 — General purpose I/O |
| Pin 62 | RG1 — General purpose I/O |
| Pin 63 | RG2 — General purpose I/O / D+ |
| Pin 64 | RG3 — General purpose I/O / D- |
| Pin EP | EP — Exposed thermal pad - connect to ground |
Typical Applications
PIC32MX534F064H-I/MR is suitable for 6 applications: USB HID / CDC Peripheral Devices, CAN 2.0B Industrial Sensor Nodes, Embedded TCP/IP Networking (with MLA Stack), Low-Cost HMI Panels with PMP Graphic LCD, USB-Connected Data Acquisition (DAQ) Modules, Educational / Maker 32-bit Development Platforms.
USB HID / CDC Peripheral Devices
The PIC32MX534F064H-I/MR's on-chip USB 2.0 Full-Speed controller with Device, Host, and OTG capability makes it ideal for USB Human Interface Devices (keyboards, mice, touch panels) and Communication Device Class peripherals (virtual COM ports, modems). The integrated 4-channel DMA offloads packet movement between the USB endpoint RAM and SRAM without CPU intervention, freeing the 80 MHz MIPS32 M4K core for application logic. Placed as the central MCU with a USB-B or USB-C connector on a 4-layer board, it delivers reliable enumeration while keeping BOM cost low.
Recommended
CAN 2.0B Industrial Sensor Nodes
The PIC32MX534F064H-I/MR's CAN 2.0B controller with 8 message buffers, paired with the -40 to +85 C industrial temperature grade, suits industrial sensor and actuator nodes on CANopen or DeviceNet networks. The 10-bit 1 Msps ADC handles analog transducer inputs, and the 4-channel DMA streams ADC and CAN messages concurrently without CPU stalls. Designers pair the MCU with a 3.3 V CAN transceiver like the MCP2551; the VQFN-64 exposed pad enables reliable thermal performance in sealed industrial enclosures.
Recommended
Embedded TCP/IP Networking (with MLA Stack)
Combined with the Microchip MLA TCP/IP stack and an external ENC28J60 or ENC424J600 Ethernet controller over SPI, the PIC32MX534F064H-I/MR delivers a low-cost embedded web-server or MQTT client. The 80 MHz core and 16 KB SRAM are sufficient for small concurrent TCP connections and a simple HTTP server. The 64 KB Flash holds the MLA stack plus application logic. Two SPI peripherals allow simultaneous Ethernet and peripheral expansion, with the 2.3-3.6 V supply eliminating the need for a separate regulator rail.
Recommended
Low-Cost HMI Panels with PMP Graphic LCD
The PIC32MX534F064H-I/MR's Parallel Master Port (PMP) directly interfaces with small TFT or graphic LCD modules (up to 8-bit bus width) for low-cost HMI panels. The 80 MHz core and DMA offload pixel data to the LCD, leaving CPU cycles free for touch scanning and menu logic. The 53 available I/O drive keypad matrices or rotary encoders alongside the LCD data bus, while the CAN peripheral connects the HMI to an industrial controller backbone without extra silicon.
Recommended
USB-Connected Data Acquisition (DAQ) Modules
The PIC32MX534F064H-I/MR serves as the central controller in USB-tethered data acquisition modules, with the 16-channel 10-bit 1 Msps ADC capturing analog signals and the USB FS port streaming data to a host PC. The 4-channel DMA streams ADC samples directly to USB endpoint buffers, sustaining >100 ksps throughput even with CRC processing. The 16 KB SRAM buffers incoming ADC data between USB transactions. Industrial users in lab automation and portable instrumentation benefit from the small 9x9 mm VQFN footprint.
Recommended
Educational / Maker 32-bit Development Platforms
The PIC32MX534F064H-I/MR is widely used in maker and academic environments due to its support in MPLAB X IDE, MPLAB Harmony v3, and the Arduino-compatible chipKIT ecosystem. The combination of 80 MHz 32-bit performance, USB, CAN, and 53 I/O at a low price makes it ideal for teaching embedded C, real-time operating systems (FreeRTOS port available), and peripheral interfacing. Educators benefit from the rich Microchip application library, while hobbyists gain a real industrial-grade MCU in a hobbyist-friendly VQFN format.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX534F064H-I/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX534F064HT-I/MR | PIC32MX564F064H-I/MR | PIC32MX575F512H-I/MR | PIC32MX534F064H-V/MR | PIC32MX534F064HT-V/MR |
|---|---|---|---|---|---|---|
| Package | VQFN-64 (MR) 9x9 mm | VQFN-64 (MR) 9x9 mm - same | VQFN-64 (MR) 9x9 mm - same | VQFN-64 (MR) 9x9 mm - same | VQFN-64 (MR) 9x9 mm - same | VQFN-64 (MR) 9x9 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 64 KB | 64 KB (same) | 64 KB (same) | 512 KB (8x larger) | 64 KB (same) | 64 KB (same) |
| Data RAM | 16 KB | 16 KB (same) | 16 KB (same) | 64 KB (4x larger) | 16 KB (same) | 16 KB (same) |
| Max Clock Frequency | 80 MHz | 80 MHz (same) | 80 MHz (same) | 80 MHz (same) | 80 MHz (same) | 80 MHz (same) |
| USB Controller | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG (same) | USB 2.0 FS Device/Host/OTG (enhanced) | USB 2.0 FS Device/Host/OTG (same) | USB 2.0 FS Device/Host/OTG (same) | USB 2.0 FS Device/Host/OTG (same) |
| CAN Controller | CAN 2.0B | CAN 2.0B (same) | CAN 2.0B (same) | CAN 2.0B (same) | CAN 2.0B (same) | CAN 2.0B (same) |
| Temperature Grade | Industrial -40 to +85 C | Industrial -40 to +85 C (same) | Industrial -40 to +85 C (same) | Industrial -40 to +85 C (same) | Extended -40 to +105 C | Extended -40 to +105 C |
| Packaging Format | Tube | Tape and Reel | Tube | Tube | Tube | Tape and Reel |
| DMA Channels | 4 | 4 (same) | 4 (enhanced chaining) | 4 (same) | 4 (same) | 4 (same) |
Key Differentiators
- Industry-standard USB Full-Speed Device/Host/OTG + CAN 2.0B in a single chip (vs PIC32MX250F128B-I/SP (no USB, no CAN))
- 4-channel DMA offloads ADC, USB, and CAN bus traffic (vs PIC32MX1xx/2xx family (no DMA))
- 64 KB Flash and 16 KB RAM at the lower end of the PIC32MX5xx family (vs PIC32MX575F512H-I/MR (512 KB Flash, 64 KB RAM))
Design Notes
Estimated: at VDD = 3.3 V, 80 MHz core, USB active, and I/O toggling at moderate load, the PIC32MX534F064H-I/MR draws approximately 60 mA (0.20 W). The VQFN-64 (MR) 9x9 mm package has a typical theta_JA of approximately 28 C/W on a 4-layer JEDEC test board with thermal vias under the exposed pad; junction-to-ambient rise is therefore ~5.6 C at full load, well below the 85 C industrial limit. Designers MUST solder the exposed thermal pad (pin EP) to a ground copper pad with multiple thermal vias to the inner ground plane to achieve this dissipation. Skipping the EP connection can raise junction temperature by 20 C or more at high CPU loads.
Place 0.1 uF decoupling capacitors as close as possible to each VDD pin (pins 2, 35, 40) and a single 4.7-10 uF bulk capacitor near the package. Keep the USB D+/D- trace lengths matched to within 150 mils, route them as a 90-ohm differential pair on the top layer, and do not cross them with clock signals. Per Microchip datasheet DS61143D Section 'Oscillator', the primary oscillator traces (OSC1/OSC2, pins 43/44) must be kept short and guarded with a ground ring to limit EMI. Provision an external 32.768 kHz crystal on SOSC pins for RTC use; route with the same short-trace discipline.
Three pitfalls to avoid. First, do not exceed 3.6 V on any I/O pin even though some PIC32MX ports claim 5V tolerance - the absolute maximum ratings table in datasheet DS61143D defines the safe limit and violations will degrade oxide over time. Second, when migrating to the larger PIC32MX575F512H-I/MR for more Flash, the interrupt vector table and address remapping differ; firmware must be rebuilt against the new linker script and the configuration bits re-validated. Third, the on-chip 8 MHz FRC drifts with temperature and is not USB-accurate; always engage the PLL with an external 8 MHz crystal for USB Full-Speed enumeration reliability.
Use the PIC32MX534F064H-I/MR's internal 1.8 V core regulator (powered from VDD) instead of supplying the core externally; this simplifies the BOM and matches the reference design. Add a 10 uF tantalum or ceramic + 0.1 uF decoupling on the VDD rail, and a 1 uF on the VDDPLL pin if present. For battery-powered designs, the Sleep and Idle modes drop core current to single-digit microamps; enable the on-chip voltage regulator's low-power state and disable unused peripherals (USB, CAN, ADC) before entering Sleep to minimize quiescent current per datasheet DS61143D.
Compliance Information
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified - the PIC32MX5xx family targets industrial/consumer applications. For automotive-grade PIC32MCUs, refer to the PIC32MK or dsPIC33A families.
