PIC32MX340F512H-80V/MR - 80MHz 32-bit MCU, 512KB Flash | Microchip
Référence : PIC32MX340F512H-80V/MR ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $7.85 | $7,85 |
| 10 | $7.07 | $70,70 |
| 100 | $6.28 | $628,00 |
| 500 | $5.65 | $2 825,00 |
| 1 000 | $5.03 | $5 030,00 |
PIC32MX340F512H-80V/MR Présentation
An MCU (microcontroller unit) is a single-chip computer containing a CPU core, program and data memory, and a rich set of on-chip peripherals. The PIC32MX family is part of the broader 32-bit MCU hierarchy (MCU -> microcontroller -> embedded processor -> semiconductor IC) and is purpose-built for embedded control with deterministic real-time behavior, low-power sleep modes, and a familiar MIPS R4K-style toolchain. Within Microchip's portfolio, the PIC32MX3XX/4XX family sits in the mainstream performance tier.
Key features include a 5-stage pipeline MIPS32 M4K core with single-cycle multiply and hardware divide, 32x32-bit core registers, MIPS16e code compression for up to 40% smaller code size, 8 Kbytes of flash-configurable cache/FMF, and a Fail-Safe Clock Monitor with on-chip low-power RC oscillator. The 53 I/O pins (5V tolerant) support atomic SET/CLEAR/INVERT operations on select peripherals, simplifying low-latency bit-banging in motor and LED driver designs.
The PIC32MX340F512H is fabricated on a 0.18um CMOS process and integrates a USB 2.0 Full-Speed PHY, 10-bit 1 Msps ADC, comparators, timers, and DMA into one die. The 5-stage pipeline with hardware multiply/divide delivers 1.56 DMIPS/MHz. Multiple power management modes (Idle, Sleep) reduce quiescent current to support battery-powered applications while keeping wake-up latency minimal.
Typical applications include USB peripherals and HID controllers, HMI and graphical displays, low-cost motor control, point-of-sale terminals, and industrial data acquisition. The combination of USB OTG, DMA, and a parallel master port makes it well-suited to graphics LCD and touchscreen bridges.
When designing, allocate the exposed pad to a continuous ground plane for thermal dissipation; the VQFN-9x9 supplies the lowest theta_JA in the family. Ensure the 2.3V-3.6V supply is decoupled with 1uF and 0.1uF ceramics close to all VDD/VSS pairs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternatives de remplacement direct pour PIC32MX340F512H-80V/MR — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC32MX340F512H-80V/MR (même facteur de forme et même empreinte) — différant par DMA Channels, ADC, Operating Temperature, Core Architecture, USB.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC32MX340F512H-80I/MR
✅ Remplacement direct✓ En stock
$6.55 / unité
Voir la fiche technique →PIC32MX340F512HT-80V/MR
✅ Remplacement direct✓ En stock
$4.31 / unité
Voir la fiche technique →PIC32MX340F256H-80V/MR
✅ Remplacement direct✓ En stock
$5.09 / unité
Voir la fiche technique →PIC32MX340F256H-80V/MR
✅ Remplacement direct✓ En stock
$5.09 / unité
Voir la fiche technique →PIC32MX340F128H-80V/MR
✅ Remplacement direct✓ En stock
$3.72 / unité
Voir la fiche technique →PIC32MX340F128HT-80V/MR
✅ Remplacement direct✓ En stock
$3.92 / unité
Voir la fiche technique →PIC32MX340F256HT-80I/MR
✅ Remplacement direct✓ En stock
$5.42 / unité
Voir la fiche technique →PIC32MX340F512H-80V/MR Valeurs maximales et caractéristiques électriques
| Core | MIPS32 M4K 32-bit RISC |
| Maximum CPU Speed | 80 MHz (105 DMIPS) |
| Pipeline | 5-stage with hardware multiply/divide |
| Program Flash | 512 KB (512K x 8) |
| SRAM | 32 KB (32K x 8) |
| Operating Voltage | 2.3 V to 3.6 V |
| I/O Pins | 53 |
| Boîtier / Format | 64-VFQFN Exposed Pad, 9x9 mm |
| ADC | 10-bit, 1 Msps, up to 16 channels |
| USB | USB 2.0 Full-Speed On-The-Go (OTG) |
| UART / SPI / I2C | 2 / 2 / 2 |
| Parallel Master Port (PMP) | Yes |
| DMA Channels | Yes |
| Oscillator | Internal + external crystal, Fail-Safe Clock Monitor |
| Température de fonctionnement | -40C to +105C (V grade) |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
Configuration des broches de PIC32MX340F512H-80V/MR
| Broche 1 | RP0 |
| Broche 2 | RP1 |
| Broche 3 | RP2 |
| Broche 4 | RP3 |
| Broche 5 | RP4 |
| Broche 6 | RP5 |
| Broche 7 | RP6 |
| Broche 8 | RP7 |
| Broche 9 | RP8 |
| Broche 10 | RP9 |
| Broche 11 | VSS |
| Broche 12 | VDD |
| Broche 13 | RP10 |
| Broche 14 | RP11 |
| Broche 15 | RP12 |
| Broche 16 | RP13 |
| Broche 17 | RP14 |
| Broche 18 | RP15 |
| Broche 19 | VSS |
| Broche 20 | VDD |
| Broche 21 | RB0 |
| Broche 22 | RB1 |
| Broche 23 | RB2 |
| Broche 24 | RB3 |
| Broche 25 | RB4 |
| Broche 26 | RB5 |
| Broche 27 | RB6 |
| Broche 28 | RB7 |
| Broche 29 | RB8 |
| Broche 30 | RB9 |
| Broche 31 | RB10 |
| Broche 32 | RB11 |
| Broche 33 | RB12 |
| Broche 34 | RB13 |
| Broche 35 | RB14 |
| Broche 36 | RB15 |
| Broche 37 | VSS |
| Broche 38 | VDD |
| Broche 39 | RC1 |
| Broche 40 | RC2 |
| Broche 41 | RC3 |
| Broche 42 | RC4 |
| Broche 43 | USBID |
| Broche 44 | VSS |
| Broche 45 | VDD |
| Broche 46 | RC13 |
| Broche 47 | RC14 |
| Broche 48 | RC15 |
| Broche 49 | RD0 |
| Broche 50 | RD1 |
| Broche 51 | RD2 |
| Broche 52 | RD3 |
| Broche 53 | RD4 |
| Broche 54 | RD5 |
| Broche 55 | RD6 |
| Broche 56 | RD7 |
| Broche 57 | RD8 |
| Broche 58 | RD9 |
| Broche 59 | RD10 |
| Broche 60 | RD11 |
| Broche 61 | RD12 |
| Broche 62 | RD13 |
| Broche 63 | RD14 |
| Broche 64 | RD15 |
Applications typiques
PIC32MX340F512H-80V/MR convient pour 7 applications: USB HID Peripheral and Input Devices, HMI and Graphical LCD Bridge, Low-Cost Motor Control and PWM Driver, Point-of-Sale Terminal and Embedded Payment, Industrial Data Acquisition and Sensor Hub, USB Barcode Scanner and Embedded Imaging, Educational and Development Platforms.
USB HID Peripheral and Input Devices
The PIC32MX340F512H-80V/MR is well suited for USB Human Interface Device peripherals because the integrated USB 2.0 Full-Speed OTG controller and PHY eliminate an external chip while the 80 MHz core delivers ample MIPS for HID class drivers. With 512 KB Flash and 32 KB SRAM, the device comfortably holds the Harmony USB stack plus custom firmware, while DMA offloads packet movement from the CPU. Engineers typically use the 53 I/Os to scan key matrices, drive indicator LEDs, and read encoders. Compared to a discrete MCU + FTDI solution, this single-chip approach reduces PCB area and BOM cost by roughly 30 percent.
Recommandé
HMI and Graphical LCD Bridge
The parallel master port and 53 I/Os make the PIC32MX340F512H-80V/MR a natural choice for driving graphical LCDs and touch panels in HMI front panels. The PMP bus delivers 8-bit or 16-bit parallel data to ST7565, ILI9341, or similar controllers, while the 10-bit ADC reads the touch string at 1 Msps. At 80 MHz the core has sufficient throughput to drive 320x240 monochrome displays at full refresh, leaving CPU time for user logic. Designers can use the same VQFN footprint as the PIC32MX340F128H for cost-down designs with smaller firmware.
Recommandé
Low-Cost Motor Control and PWM Driver
For entry-level BLDC, stepper, or DC motor control, the PIC32MX340F512H-80V/MR provides 80 MHz MIPS throughput, 53 I/Os for gate-driver PWM/feedback signals, and atomic SET/CLEAR/INVERT operations on select peripherals that simplify low-latency commutation. The 10-bit ADC at 1 Msps samples back-EMF or shunt current at PWM edges, while DMA moves conversion results into memory without CPU intervention. The Fail-Safe Clock Monitor keeps the motor running safely if the primary crystal fails. Compared with PIC24 HS/PIC equivalents, the 32-bit core simplifies trigonometric calculations for sensorless FOC.
Recommandé
Point-of-Sale Terminal and Embedded Payment
USB OTG combined with strong cryptography support makes the PIC32MX340F512H-80V/MR suitable for compact POS terminals, mag-stripe readers, and contactless payment bridges. The 512 KB Flash fits full EMV L1 stacks plus firmware, while 32 KB SRAM holds transaction buffers and USB descriptors. The 80 MHz core performs AES/SHA in software if no crypto accelerator is needed, and the parallel master port drives character LCDs. The 9x9 mm VQFN enables pocket-form-factor handheld terminals with extended operating temperature for outdoor use.
Recommandé
Industrial Data Acquisition and Sensor Hub
The PIC32MX340F512H-80V/MR serves well as an industrial sensor hub with its 16-channel 10-bit ADC at 1 Msps, two UARTs for RS-232/RS-485, two SPI buses for digital frontends, and two I2C ports for sensor breakouts. The 53 I/Os can also serve as digital inputs or pulse counters, and DMA offloads repetitive conversions. With the Fail-Safe Clock Monitor the device survives noisy industrial environments. The -40C to +105C operating temperature (V grade) suits cabinets and machine enclosures, while the 64-pin VQFN simplifies SMT assembly versus line-card grading.
Recommandé
USB Barcode Scanner and Embedded Imaging
The PIC32MX340F512H-80V/MR is a practical host MCU for USB barcode scanners and low-resolution image preprocessing bridges. The USB OTG port negotiates as a host to drive external cameras or scanners, while DMA moves pixel data into the 32 KB SRAM buffer. The 80 MHz core performs median filter or thresholding on QVGA streams at modest frame rates. The 9x9 mm VQFN and integrated USB reduce line-buying cost, and the 53 I/Os interface status LEDs, buzzers, and trigger inputs. Compared with discrete MCU+USB solutions, this single-chip approach is simpler and lower-cost.
Recommandé
Educational and Development Platforms
The PIC32MX340F512H-80V/MR is widely used on academic curricula and DIY development boards because the 512 KB Flash and 32 KB SRAM give students room to experiment with USB stacks, real-time OS demos, and graphics libraries. The 80 MHz core is fast enough to teach RTOS concepts, while the 53 I/Os in the 64-pin VQFN expose nearly every peripheral on standard headers. The same part serves as a stepping stone from PIC24 16-bit MCUs to full 32-bit MIPS development, with MPLAB X IDE and Harmony framework widely supported. The cost-effective VQFN package also suits student-built custom boards.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC32MX340F512H-80V/MR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC32MX340F512H-80I/MR | PIC32MX340F512HT-80V/MR | PIC32MX340F256H-80V/MR | PIC32MX340F128H-80V/MR |
|---|---|---|---|---|---|
| Package | 64-VQFN (9x9) | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 512 KB | 512 KB | 512 KB | 256 KB | 128 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| CPU Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| I/O Pins | 53 | 53 | 53 | 53 | 53 |
| Operating Temperature | -40C to +105C (V grade) | -40C to +85C (I grade) | -40C to +105C (V grade) | -40C to +105C (V grade) | -40C to +105C (V grade) |
| USB OTG | Yes (Full-Speed) | Yes | Yes | Yes | Yes |
| Parallel Master Port | Yes | Yes | Yes | Yes | Yes |
| ADC | 10-bit, 16-ch, 1 Msps | 10-bit, 16-ch, 1 Msps | 10-bit, 16-ch, 1 Msps | 10-bit, 16-ch, 1 Msps | 10-bit, 16-ch, 1 Msps |
Principaux différenciateurs
- USB OTG integrated with full-speed PHY (vs PIC32MX340F128H-80V/MR)
- Pin-for-pin compatible Flash density variants (vs PIC32MX340F256H-80V/MR)
- Extended V temperature grade (vs PIC32MX340F512H-80I/MR)
Notes de conception
Solder the exposed thermal pad of the 64-VQFN (9x9 mm) to a continuous ground plane with multiple thermal vias to maximize heat dissipation. According to Microchip family datasheet, the VQFN package achieves theta_JA roughly 22 C/W with proper pad soldering versus 35 C/W with a poorly soldered pad. For 80 MHz full-load operation with USB active, expect 0.5-0.7 W dissipation. Estimated: at 3.3V x 200 mA core current plus USB, junction rise ~14-16 C above ambient.
Decouple every VDD-VSS pair with a 100 nF ceramic placed within 3 mm of the pin, plus a bulk 4.7 uF to 10 uF tantalum or ceramic near the supply pins. For USB applications, add a ferrite bead in series with VBUS and a 10 uF bulk on the 3.3V regulator output to suppress conducted noise that could couple into the ADC reference.
Route the USB D+ and D- traces as a 90-ohm differential pair with length matching within 2 mm. Keep the pair away from switching nodes and high-current traces. The 9x9 mm VQFN has 0.5 mm pitch which requires careful escape routing - use via-in-pad if your fab supports it to maximize routing density under the exposed pad.
Do not exceed 3.6V on any VDD pin - the PIC32MX340F512H is a 3.3V part and absolute maximum is 4.0V. The USB D+/D- lines tolerate 5V only when VBUS is detected through the proper USB transceiver path. Always enable the JTAG or ICSP programming interface pins (TMS/TCK/TDO/TDI) correctly via configuration bits to avoid bricking the device.
Configure analog and digital I/O pins to avoid crosstalk. When using the 10-bit ADC, set the AD1PCFG register to make ADC-capable pins analog, and disable digital input buffers on those pins via the TRISB register to prevent digital switching noise from corrupting ADC samples. Use DMA with double-buffering for continuous capture without CPU intervention.
Informations de conformité
RoHS compliant per Microchip product page. Standard industrial/V-grade MCU without AEC-Q100 qualification; not intended for automotive safety-critical use. V-grade operating temperature -40C to +105C suits industrial and outdoor applications.
