PIC32MX340F512HT-80V/PT - 80MHz 512KB Flash 32-bit MCU | Microchip
MPN: PIC32MX340F512HT-80V/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.21 | $8.21 |
| 10 | $7.46 | $74.60 |
| 100 | $6.42 | $642.00 |
| 500 | $5.74 | $2,870.00 |
| 1,000 | $5.18 | $5,180.00 |
PIC32MX340F512HT-80V/PT Overview
A 32-bit microcontroller (MCU) is an integrated circuit that combines a 32-bit processor core, program memory (Flash), data memory (SRAM), and programmable peripherals into a single silicon device. The PIC32 family uses the MIPS32 M4K architecture, which is a RISC (Reduced Instruction Set Computing) design that executes most instructions in a single clock cycle, enabling deterministic real-time performance. Within the broader semiconductor taxonomy, an MCU is a sub-category of microprocessor and sits inside the integrated circuit family, alongside memory ICs, logic ICs, and analog ICs.
Key features include 512 KB (512K x 8) Flash, 32 KB SRAM, an internal oscillator, 5 16-bit timers/counters, 5 capture/compare/PWM peripherals, and a 10-bit 1 Msps ADC with up to 16 input channels. The device also supports I2C, SPI, and UART communication peripherals, plus USB 2.0 full-speed On-The-Go for direct device-to-device data exchange without an external PHY. The 80 MHz core delivers 105 DMIPS of computational performance while operating from a 2.3V to 3.6V supply.
Architecturally, the PIC32MX340 series leverages the MIPS M4K core (Harvard architecture with separate instruction and data buses) combined with 5-stage pipelining and hardware multiply/divide. The on-chip DMA controller offloads data movement between peripherals and memory, freeing the CPU for application logic. Hardware PMP (Parallel Master Port) and PMP-style bus interfaces enable external memory and graphics display connectivity for richer human-machine interface designs.
Typical applications include industrial control and Human-Machine Interface (HMI) panels, USB peripherals and embedded hosts, motor control with PWM, data loggers, and consumer electronics with touch or display interfaces. The 53 available I/O pins support simultaneous TFT LCD, keypad, and sensor array connections, while USB OTG allows battery-charging dock, audio dock, or tethered device applications.
When designing with this part, ensure the trace length between the ICSP PGECx/PGEDx pins and the programming/debug connector is kept short to maintain signal integrity during in-circuit serial programming and debugging. Use decoupling capacitors of 0.1 uF plus bulk capacitance on each supply pin and follow Microchip reference PCB layout patterns for the USB differential pair.
This page synthesizes distributor pricing, drop-in alternatives from the PIC32MX family, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC32MX340F512HT-80V/PT — 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 PIC32MX340F512HT-80V/PT (same form factor and footprint) — differing in ADC, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX340F512H-80V/PT
✅ Drop-In✓ In Stock
$4.78 / Unit
View Datasheet →PIC32MX340F512HT-80I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX340F512HT-80V/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K |
| Core Size | 32-Bit Single-Core |
| Maximum Clock Frequency | 80 MHz |
| Program Memory (Flash) | 512 KB (512K x 8) |
| RAM Size | 32 KB |
| Number of I/O Pins | 53 |
| Package / Case | 64-TQFP (10x10 mm) |
| Supply Voltage | 2.3 V to 3.6 V |
| Operating Temperature | -40C to +105C (V grade) |
| ADC | 10-bit, up to 16 channels |
| DMA Channels | Yes |
| USB | USB 2.0 Full-Speed OTG |
| Communication Peripherals | I2C, SPI, UART |
| Timers | 5 x 16-bit |
| PWM / Output Compare | 5 channels |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC32MX340F512HT-80V/PT Pin Configuration
| Pin 1 | RPB0 — GPIO / Programming pin (PGED1) |
| Pin 2 | RPB1 — GPIO / Programming pin (PGEC1) |
| Pin 3 | RPB2 — GPIO / Analog AN0 |
| Pin 4 | RPB3 — GPIO / Analog AN1 |
| Pin 5 | VDD — Supply voltage (2.3V to 3.6V) |
| Pin 6 | VSS — Ground reference |
| Pin 7 | RPB4 — GPIO / Analog AN2 |
| Pin 8 | RPB5 — GPIO / Analog AN3 |
| Pin 9 | RPB6 — GPIO / Analog AN4 |
| Pin 10 | RPB7 — GPIO / Analog AN5 |
| Pin 11 | VDD — Supply voltage |
| Pin 12 | VSS — Ground |
| Pin 13 | RPC0 — GPIO |
| Pin 14 | RPC1 — GPIO |
| Pin 15 | RPC2 — GPIO |
| Pin 16 | RPC3 — GPIO |
| Pin 17 | RPC4 — GPIO / D+ (USB) |
| Pin 18 | RPC5 — GPIO / D- (USB) |
| Pin 19 | VUSB — USB Voltage regulator output (3.3V) |
| Pin 20 | VSS — Ground |
| Pin 21 | RPC6 — GPIO |
| Pin 22 | RPC7 — GPIO |
| Pin 23 | RPC8 — GPIO |
| Pin 24 | RPC9 — GPIO |
| Pin 25 | VDD — Supply voltage |
| Pin 26 | VSS — Ground |
| Pin 27 | RPB11 — GPIO / AN6 |
| Pin 28 | RPB12 — GPIO / AN7 |
| Pin 29 | RPB13 — GPIO / AN8 |
| Pin 30 | RPB14 — GPIO / AN9 |
| Pin 31 | RPB15 — GPIO / AN11 |
| Pin 32 | VDD — Supply voltage |
| Pin 33 | VSS — Ground |
| Pin 34 | RPD0 — GPIO |
| Pin 35 | RPD1 — GPIO |
| Pin 36 | RPD2 — GPIO |
| Pin 37 | RPD3 — GPIO |
| Pin 38 | RPD4 — GPIO |
| Pin 39 | RPD5 — GPIO |
| Pin 40 | RPD6 — GPIO |
| Pin 41 | RPD7 — GPIO |
| Pin 42 | VDD — Supply voltage |
| Pin 43 | VSS — Ground |
| Pin 44 | RPD8 — GPIO |
| Pin 45 | RPD9 — GPIO |
| Pin 46 | RPD10 — GPIO |
| Pin 47 | RPD11 — GPIO |
| Pin 48 | RPD12 — GPIO |
| Pin 49 | RPD13 — GPIO |
| Pin 50 | RPD14 — GPIO |
| Pin 51 | RPD15 — GPIO |
| Pin 52 | RPE0 — GPIO / AN26 |
| Pin 53 | RPE1 — GPIO / AN27 |
| Pin 54 | RPE2 — GPIO / AN28 |
| Pin 55 | RPE3 — GPIO / AN29 |
| Pin 56 | RPE4 — GPIO / AN30 |
| Pin 57 | RPE5 — GPIO / AN31 |
| Pin 58 | RPE6 — GPIO |
| Pin 59 | RPE7 — GPIO |
| Pin 60 | VDD — Supply voltage |
| Pin 61 | VSS — Ground |
| Pin 62 | MCLR — Master Clear reset (active low) |
| Pin 63 | OSC1 — Crystal oscillator input / external clock |
| Pin 64 | OSC2 — Crystal oscillator output |
Typical Applications
PIC32MX340F512HT-80V/PT is suitable for 6 applications: Industrial Human-Machine Interface (HMI), USB Peripherals and Embedded Hosts, Motor Control and PWM Drivers, Data Acquisition and Logging, Consumer Electronics with Display, Automotive Body and Comfort Modules.
Industrial Human-Machine Interface (HMI)
The PIC32MX340F512HT-80V/PT drives TFT LCD panels and resistive touchscreens in industrial HMI products, with 53 GPIO pins supporting simultaneous LCD data bus, keypad matrix, and backlight PWM control. The 512 KB Flash accommodates full graphics libraries such as Microchip's MLA or third-party GUIs without external memory. Its 80 MHz MIPS32 M4K core renders 320x240 displays at 30+ FPS while the on-chip 10-bit ADC reads analog sensor inputs for system monitoring. The V-grade temperature rating allows deployment in factory cabinets up to 105°C.
Recommended
USB Peripherals and Embedded Hosts
The PIC32MX340F512HT-80V/PT integrates USB 2.0 full-speed On-The-Go, enabling both device-mode peripherals (CDC, HID, MSD, audio class) and embedded-host operation (mass storage, keyboards, mice) without an external PHY. The 512 KB Flash accommodates USB stacks like Microchip's MLA USB framework plus application logic. With 32 KB SRAM and DMA-driven endpoint buffers, the MCU sustains 12 Mbps USB full-speed traffic while running user code. The 80 MHz core provides ample headroom for USB protocol processing and isochronous transfers.
Recommended
Motor Control and PWM Drivers
The PIC32MX340F512HT-80V/PT provides 5 PWM/Output Compare channels with 80 MHz time base, enabling 3-phase BLDC or 2-phase stepper motor control at up to 80 kHz PWM frequency with 12-bit effective resolution. The 512 KB Flash holds FOC (Field Oriented Control) libraries and fault handling routines. The on-chip 10-bit ADC samples motor currents and BEMF at 1 Msps for sensorless control. Its 53 GPIO pins accommodate multi-axis drives with encoder, Hall sensor, and direction control signals per axis.
Recommended
Data Acquisition and Logging
The PIC32MX340F512HT-80V/PT is well suited for multi-channel data loggers, with a 10-bit 1 Msps ADC (up to 16 channels) and DMA that transfers samples to SRAM without CPU intervention. The 512 KB Flash stores configuration and file system metadata, while 32 KB SRAM buffers measurement bursts before external SD card or USB offload. Its 80 MHz core handles protocol parsing, while UART/SPI/I2C peripherals connect to external sensors. The -40C to +105C V grade supports unattended outdoor logger installations.
Recommended
Consumer Electronics with Display
The PIC32MX340F512HT-80V/PT powers consumer devices requiring a small TFT or OLED display plus USB connectivity, such as audio docks, fitness equipment, smart appliances, and gaming peripherals. The 512 KB Flash holds color graphics libraries, font tables, and USB class stacks. The 80 MHz core delivers smooth menu transitions and audio effects processing. Its 53 GPIO pins connect to driver LCD, capacitive touch controller, and audio DAC, all in a compact 64-pin TQFP footprint for small consumer enclosures.
Recommended
Automotive Body and Comfort Modules
The PIC32MX340F512HT-80V/PT with V temperature grade supports automotive body control modules such as HVAC controllers, seat controllers, mirror modules, and lighting controllers. The 53 GPIO pins drive LEDs, read switches, and communicate via LIN/CAN-like protocols. The 80 MHz MIPS core runs AUTOSAR-like schedulers and LIN stacks. The wide 2.3V-3.6V supply range tolerates automotive cranking transients. Designers needing formal AEC-Q100 qualification should review Microchip's automotive-grade PIC32MX variants.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX340F512HT-80V/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX340F512H-80V/PT | PIC32MX340F512HT-80I/PT | PIC32MX340F256H-80V/PT |
|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit |
| Clock Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 256 KB (-50%) |
| RAM Size | 32 KB | 32 KB | 32 KB | 32 KB |
| Temperature Grade | -40C to +105C (V) | -40C to +105C (V) | -40C to +85C (I) | -40C to +105C (V) |
| USB | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG |
Key Differentiators
- Tape-and-reel packaging for automated SMT assembly (vs PIC32MX340F512H-80V/PT)
- V-grade temperature rating for harsh environments (vs PIC32MX340F512HT-80I/PT)
- Higher code budget compared to 256K subvariant (vs PIC32MX340F256H-80V/PT)
Design Notes
Place a 0.1 uF decoupling capacitor within 5 mm of every VDD pin and a bulk 10 uF tantalum or aluminum polymer capacitor near the package. Use a continuous ground plane on the layer directly beneath the TQFP and stitch vias around the perimeter for thermal dissipation. Per Microchip's PIC32MX hardware design checklist, keep the trace length from the ICSP PGECx/PGEDx pins to the debug header under 100 mm to ensure reliable in-circuit programming at 80 MHz.
The 64-pin TQFP package has a typical theta_JA of approximately 50-60 C/W in still air, sufficient for typical PIC32MX workloads which rarely exceed 0.5 W. Estimated: at 80 MHz core frequency with 3.3 V supply, typical core current is approximately 30-40 mA, dissipating approximately 0.1-0.15 W. For V-grade parts in enclosed industrial housings, verify junction temperature using the formula TJ = TA + (PD x theta_JA).
The USB D+ and D- differential pair on pins RPC4/RPC5 must be routed as a 90-ohm differential pair with matched lengths (within 150 mil). Place the USB series ferrite beads or common-mode choke within 5 mm of the connector. Add a 1 uF bypass capacitor on VUSB (pin 19) per the Microchip PIC32 USB hardware design guide. Keep high-speed digital traces away from analog ADC inputs to minimize crosstalk.
Do not connect MCLR directly to VDD without a 10 kohm pull-up resistor; the MCLR pin requires a low-impedance path to ground during reset programming. Avoid floating analog inputs on unused ADC channels - tie them to either VSS or VDD to prevent shoot-through current. When using the internal 8 MHz oscillator, calibrate the FREQ register via the FPLL or POSC configuration bits per the PIC32MX3XX/4XX family datasheet (DS61143H) to achieve accurate USB timing.
Compliance Information
RoHS and REACH compliant per Microchip product page. Lead-free TQFP package. Not AEC-Q100 qualified; for automotive applications requiring AEC-Q100 review Microchip's automotive-grade PIC32MX variants separately.
