PIC32MX534F064LT-V/BG - 32-bit MCU 80MHz 64KB Flash USB OTG | Microchip
MPN: PIC32MX534F064LT-V/BG ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.4 | $6.40 |
| 10 | $5.78 | $57.80 |
| 100 | $5.18 | $518.00 |
| 500 | $4.66 | $2,330.00 |
| 1,000 | $4.15 | $4,150.00 |
PIC32MX534F064LT-V/BG Overview
A 32-bit microcontroller (MCU) is a microprocessor core optimized for embedded control, integrating CPU, memory, peripherals, and interrupt logic into a single IC. The PIC32MX534 family belongs to the broader MIPS32 architecture family, which sits in the taxonomy microcontroller -> embedded processor -> integrated circuit -> semiconductor. This 32-bit class offers deterministic real-time performance, larger address space, and richer peripheral integration compared to 8/16-bit MCUs while remaining significantly lower in cost than Cortex-M4 application processors.
Key differentiating features include hardware DMA that offloads data movement from the CPU, full-speed USB OTG with on-chip transceiver that eliminates external PHY cost, and a 10-bit ADC capable of 1 MSPS for high-speed sensor sampling. The 80 MHz M4K core delivers 1.56 DMIPS/MHz and executes most instructions in one clock cycle, suitable for control loops, USB stacks, and graphical user interfaces with external peripherals. The device supports 2.3V to 3.6V single-supply operation, includes a Real-Time Clock calendar, and offers multiple low-power modes for battery-powered designs.
Architecturally the PIC32MX5 family uses a Harvard-style memory structure with separate 32-bit instruction and data paths to the Flash and SRAM. The DMA controller supports up to 8 independent channels and triggers on peripheral events, allowing continuous USB or ADC operation without CPU intervention. The USB OTG module includes the physical layer, requiring only an external pull-up or pull-down resistor on the D+/D- lines and a few decoupling components for a compliant USB port.
The part fits inside industrial control panels, USB peripherals, point-of-sale terminals, sensor hubs, medical data loggers, and consumer audio accessories. The compact 121-ball TFBGA package suits space-constrained PCB layouts such as wearable dongles and portable test instruments where a QFP would be too tall or too large. Designers select the PIC32MX534 family when balancing USB integration, deterministic interrupt latency, and Microchip's MPLAB Harmony firmware ecosystem against the lower cost of 8-bit PIC16/PIC18 parts.
When designing with this device, plan for decoupling (100 nF + 1 uF near each VDD pair), keep the USB trace length under 50 mm with 90-ohm differential impedance, and configure the oscillator PLL that enables ripple-free USB clocks without overshoot. The MPLAB Harmony configurator and the PICkit 5 in-circuit debugger are the recommended toolchain for production programming and firmware development, providing validated peripheral drivers and a USB stack.
This page synthesizes distributor pricing for the PIC32MX534F064LT-V/BG, drop-in alternatives within the same 121-ball TFBGA footprint, and practical layout and USB design notes that the manufacturer datasheet does not present in a single reference.
Drop-in alternatives for PIC32MX534F064LT-V/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 PIC32MX534F064LT-V/BG (same form factor and footprint) — differing in ADC, Package, Core Architecture, DMA Channels, CAN.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX534F064L-I/BG
✅ Drop-In✓ In Stock
$4.35 / Unit
View Datasheet →PIC32MX460F512L-80V/BG
✅ Drop-In✓ In Stock
$6.1 / Unit
View Datasheet →PIC32MX360F512L-80V/BG
✅ Drop-In✓ In Stock
$6.65 / Unit
View Datasheet →PIC32MX340F128L-80I/BG
✅ Drop-In✓ In Stock
$5.48 / Unit
View Datasheet →PIC32MX440F128L-80V/BG
✅ Drop-In✓ In Stock
$4.75 / Unit
View Datasheet →PIC32MX534F064LT-V/BG Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K |
| Core Bit Width | 32-bit |
| Maximum CPU Speed | 80 MHz |
| Program Memory (Flash) | 64 KB (64K x 8) |
| Data Memory (SRAM) | 16 KB |
| ADC | 10-bit, 1 MSPS |
| DMA Channels | 8 channels |
| USB Interface | USB 2.0 Full-Speed OTG with on-chip transceiver |
| Supply Voltage | 2.3 V to 3.6 V |
| Package | 121-ball TFBGA (10x10 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Peripherals | UART, SPI, I2C, PMP, RTCC, comparators |
| Lead-Free | Yes |
PIC32MX534F064LT-V/BG Pin Configuration
| Pin 1 | A1 — Ball A1 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 2 | A2 — Ball A2 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 3 | A3 — Ball A3 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 4 | A4 — Ball A4 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 5 | A5 — Ball A5 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 6 | A6 — Ball A6 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 7 | A7 — Ball A7 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 8 | A8 — Ball A8 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 9 | A9 — Ball A9 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 10 | A10 — Ball A10 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 11 | A11 — Ball A11 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 12 | B1 — Ball B1 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 13 | B2 — Ball B2 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 14 | B3 — Ball B3 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 15 | B4 — Ball B4 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 16 | B5 — Ball B5 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 17 | B6 — Ball B6 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 18 | B7 — Ball B7 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 19 | B8 — Ball B8 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 20 | B9 — Ball B9 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 21 | B10 — Ball B10 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 22 | B11 — Ball B11 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 23 | C1 — Ball C1 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 24 | C2 — Ball C2 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 25 | C3 — Ball C3 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 26 | C4 — Ball C4 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 27 | C5 — Ball C5 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 28 | C6 — Ball C6 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 29 | C7 — Ball C7 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 30 | C8 — Ball C8 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 31 | C9 — Ball C9 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 32 | C10 — Ball C10 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 33 | C11 — Ball C11 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 34 | D1 — Ball D1 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 35 | D2 — Ball D2 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 36 | D3 — Ball D3 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 37 | D4 — Ball D4 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 38 | D5 — Ball D5 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 39 | D6 — Ball D6 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 40 | D7 — Ball D7 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 41 | D8 — Ball D8 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 42 | D9 — Ball D9 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 43 | D10 — Ball D10 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 44 | D11 — Ball D11 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 45 | E1 — Ball E1 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 46 | E2 — Ball E2 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 47 | E3 — Ball E3 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 48 | E4 — Ball E4 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 49 | E5 — Ball E5 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 50 | E6 — Ball E6 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 51 | E7 — Ball E7 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 52 | E8 — Ball E8 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 53 | E9 — Ball E9 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 54 | E10 — Ball E10 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 55 | E11 — Ball E11 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 56 | F1 — Ball F1 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 57 | F2 — Ball F2 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 58 | F3 — Ball F3 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 59 | F4 — Ball F4 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 60 | F5 — Ball F5 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 61 | F6 — Ball F6 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 62 | F7 — Ball F7 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 63 | F8 — Ball F8 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 64 | F9 — Ball F9 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 65 | F10 — Ball F10 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 66 | F11 — Ball F11 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 67 | G1 — Ball G1 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 68 | G2 — Ball G2 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 69 | G3 — Ball G3 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 70 | G4 — Ball G4 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 71 | G5 — Ball G5 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 72 | G6 — Ball G6 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 73 | G7 — Ball G7 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 74 | G8 — Ball G8 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 75 | G9 — Ball G9 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 76 | G10 — Ball G10 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 77 | G11 — Ball G11 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 78 | H1 — Ball H1 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 79 | H2 — Ball H2 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 80 | H3 — Ball H3 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 81 | H4 — Ball H4 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 82 | H5 — Ball H5 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 83 | H6 — Ball H6 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 84 | H7 — Ball H7 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 85 | H8 — Ball H8 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 86 | H9 — Ball H9 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 87 | H10 — Ball H10 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 88 | H11 — Ball H11 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 89 | J1 — Ball J1 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 90 | J2 — Ball J2 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 91 | J3 — Ball J3 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 92 | J4 — Ball J4 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 93 | J5 — Ball J5 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 94 | J6 — Ball J6 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 95 | J7 — Ball J7 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 96 | J8 — Ball J8 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 97 | J9 — Ball J9 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 98 | J10 — Ball J10 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 99 | J11 — Ball J11 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 100 | K1 — Ball K1 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 101 | K2 — Ball K2 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 102 | K3 — Ball K3 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 103 | K4 — Ball K4 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 104 | K5 — Ball K5 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 105 | K6 — Ball K6 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 106 | K7 — Ball K7 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 107 | K8 — Ball K8 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 108 | K9 — Ball K9 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 109 | K10 — Ball K10 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 110 | K11 — Ball K11 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 111 | L1 — Ball L1 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 112 | L2 — Ball L2 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 113 | L3 — Ball L3 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 114 | L4 — Ball L4 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 115 | L5 — Ball L5 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 116 | L6 — Ball L6 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 117 | L7 — Ball L7 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 118 | L8 — Ball L8 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 119 | L9 — Ball L9 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 120 | L10 — Ball L10 - GPIO/Peripheral pin (see datasheet ball-map) |
| Pin 121 | L11 — Ball L11 - GPIO/Peripheral pin (see datasheet ball-map) |
Typical Applications
PIC32MX534F064LT-V/BG is suitable for 6 applications: USB Industrial Sensor Hubs, Portable Medical Data Loggers, USB Point-of-Sale Terminals, USB Wearable Dongles, Industrial Control Panel HMI Modules, Consumer Audio Accessories.
USB Industrial Sensor Hubs
The PIC32MX534F064LT-V/BG fits USB industrial sensor hubs that require a single-chip bridge between multiple sensors and a host PC or industrial controller. The integrated USB 2.0 Full-Speed OTG controller with on-chip transceiver eliminates an external PHY and provides USBTMC or HID class support for vendor commands, while the 8-channel DMA offloads high-rate ADC sampling at 1 MSPS for parallel voltage, current, and temperature measurements. The 53 GPIO budget supports multiple SPI sensors, the 16 KB SRAM buffers 1000+ sample packets without FIFO overflow, and the V temperature grade supports +105C inside sealed industrial enclosures near motors and heaters. Pair with the MCP2551 CAN transceiver for legacy 4-wire industrial networks, or with the MCP2221A for USB-I2C bridging to legacy peripherals.
Recommended
Portable Medical Data Loggers
Portable medical data loggers benefit from the PIC32MX534F064LT-V/BG because the 64 KB program space stores USB transfer / FTP descriptors, MPLAB Harmony USB stacks, and lightweight encryption for patient records. The 10-bit ADC with 1 MSPS sampling rate supports ECG and pulse-oximeter analog front-ends with timing-jitter-free DMA transfers into the 16 KB SRAM, capturing multiple sweeps of physiological signals without CPU intervention. Low-power Run, Idle, and Sleep modes extend battery runtime to 200+ hours on coin-cell designs, and the V temperature grade preserves calibration accuracy across the +5C to +45C medical operating range. Pair with the MCP1700 LDO regulator for low-quiescent power, and the TC1047A analog temperature sensor for thermal monitoring.
Recommended
USB Point-of-Sale Terminals
POS terminals with USB peripheral connectivity rely on the PIC32MX534F064LT-V/BG because the on-chip USB OTG controller and DMA controller handle magnetic-stripe reader streams, barcode scanner data, and receipt-printer commands without external PHY cost. The 80 MHz MIPS32 M4K core runs the USB class drivers and a lightweight LCD text display via PMP, while the 64 KB Flash accommodates custom firmware, ISO 7816 smart-card routines, and USB HID/CDC stacks concurrently. The 53 GPIO budget supports a 4x4 keypad matrix, status LEDs, and a serial EEPROM for transaction logging. Pair with the MCP23S17 I/O expander for additional keypad or display rows, and the TC77 thermal sensor for thermal monitoring of the printer head.
Recommended
USB Wearable Dongles
USB wearable dongles such as fitness trackers, BLE bridges, and security tokens benefit from the PIC32MX534F064LT-V/BG because the 121-ball TFBGA 10x10 mm package enables a sub-15x15 mm PCB footprint that fits USB-A form factors. The integrated USB OTG controller and on-chip transceiver minimize BOM cost for sub-$5 retail dongle products, while the 80 MHz MIPS32 M4K core executes lightweight command sets and BLE relay protocols via the SPI-connected RN4870 module. The 16 KB SRAM supports HID reports and pairing buffers, and the V temperature grade supports in-pocket operating temperatures up to +105C. Pair with the MCP1700 LDO for low-quiescent operation, and the RN4870 Bluetooth 5 module for BLE connectivity.
Recommended
Industrial Control Panel HMI Modules
Industrial HMI modules that integrate USB programming ports benefit from the PIC32MX534F064LT-V/BG because the on-chip USB OTG controller exposes a USB device port for firmware updates via USB stick, while the dedicated DMA channels manage capacitive-touch sensing via the PMP interface. The V temperature grade supports +105C ambient inside sealed control cabinets near variable-frequency drives, and the 53 GPIO budget directly drives 7-segment displays, status LEDs, and piezo-buzzer feedback without external shift registers. The 64 KB Flash holds HMI state machines, USB mass-storage stacks, and bootloader firmware concurrently, while the 16 KB SRAM buffers display frames. Pair with the MCP23S08 SPI port expander for additional GPIO, and the MCP9808 I2C temperature sensor for cabinet thermal monitoring.
Recommended
Consumer Audio Accessories
USB audio accessories such as USB headsets, USB DAC dongles, and USB microphones benefit from the PIC32MX534F064LT-V/BG because the on-chip USB OTG controller exposes USB Audio Class 1.0 device support with isochronous endpoints for 48 kHz / 16-bit audio streaming, while the 10-bit ADC with DMA captures microphone signals at 1 MSPS for noise-cancellation preprocessing. The 80 MHz MIPS32 M4K core executes lightweight audio mixing and equalization routines with low interrupt latency, while the 64 KB Flash stores USB descriptors, audio class drivers, and my equalizer presets concurrently. Pair with the PCM2704C USB audio DAC for high-fidelity playback, and the MCP6022 op-amp for headphone amplification.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX534F064LT-V/BG — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX534F064L-I/BG | PIC32MX460F512L-80V/BG | PIC32MX360F512L-80V/BG | PIC32MX340F128L-80I/BG | PIC32MX440F128L-80V/BG |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 121-ball TFBGA (10x10 mm) | 121-ball TFBGA (10x10 mm) - same | 121-ball TFBGA (10x10 mm) - same | 121-ball TFBGA (10x10 mm) - same | 121-ball TFBGA (10x10 mm) - same | 121-ball TFBGA (10x10 mm) - same |
| Core Architecture | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K |
| Maximum CPU Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash Memory | 64 KB | 64 KB | 512 KB (8x larger) | 512 KB (8x larger) | 128 KB (2x larger) | 128 KB (2x larger) |
| SRAM | 16 KB | 16 KB | 32 KB (2x larger) | 32 KB (2x larger) | 32 KB (2x larger) | 32 KB (2x larger) |
| USB Interface | USB 2.0 FS OTG (host + device) | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS device-only | USB 2.0 FS device-only | USB 2.0 FS OTG + CAN |
| Temperature Grade | V grade (-40C to +105C) | I grade (-40C to +85C) | V grade (-40C to +105C) | V grade (-40C to +105C) | I grade (-40C to +85C) | V grade (-40C to +105C) |
Key Differentiators
- On-chip USB OTG with on-chip transceiver (vs PIC32MX360F512L-80V/BG)
- Extended V temperature grade (vs PIC32MX534F064L-I/BG)
- Compact 121-ball TFBGA package (vs PIC32MX470F512L-V/PT)
Design Notes
Estimated: the PIC32MX534F064LT-V/BG at 80 MHz core with all peripherals enabled draws approximately 70 mA from a 3.3 V supply. Place one 100 nF ceramic decoupling capacitor adjacent to each of the 5 VDD/VSS pairs on the 121-ball TFBGA, plus one 1 uF to 10 uF bulk capacitor near the package. Use a low-dropout regulator such as MCP1700-3302E with 250 mA headroom to handle USB suspend current spikes without collapsing the rail.
Route the USB D+/D- differential pair with 90-ohm controlled impedance and keep the trace length under 50 mm to meet USB 2.0 Full-Speed signal-integrity requirements. Maintain a continuous ground reference plane beneath the USB traces and place the 15 kohm pull-down on D+ and 15 kohm pull-down on D- at the connector side, not at the MCU side, per the manufacturer datasheet recommendations.
The 121-ball TFBGA uses 0.8 mm ball pitch and requires 4-layer PCB with micro-via fanout for inner-row balls. Place decoupling capacitors on the opposite PCB side adjacent to each ball cluster to minimize loop inductance. Avoid routing signals between the ball rows to prevent shorts during reflow; instead, escape balls outward to perimeter traces and vias.
Do not exceed 3.6 V on any VDD pin; the MCU has no internal overvoltage protection and latch-up can permanently damage the part. When using the on-chip USB OTG controller, ensure the 48 MHz USB clock is enabled and the PLL is locked before connecting to a USB host, or the device will enumerate as an unknown device and fail USB compliance testing.
Compliance Information
RoHS compliant per Microchip product page. Consumer/industrial grade - not AEC-Q100 qualified.