PIC32MX675F256L-80I/PF - 80MHz 32-bit MCU 256KB Flash | Microchip
Référence : PIC32MX675F256L-80I/PF ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $9.82 | $9,82 |
| 10 | $9.05 | $90,50 |
| 100 | $7.95 | $795,00 |
| 500 | $7.18 | $3 590,00 |
| 1 000 | $6.55 | $6 550,00 |
PIC32MX675F256L-80I/PF Présentation
A 32-bit microcontroller (MCU) is an integrated circuit that combines a 32-bit CPU core, program and data memory, and a rich set of programmable peripherals on a single silicon die. PIC32MX MCUs sit in the broader taxonomy of microcontrollers -> 32-bit microcontrollers -> MIPS-based microcontrollers -> embedded controllers -> semiconductor ICs, designed for applications that need more computational headroom than 8-bit or 16-bit parts but lower power and simpler toolchains than Cortex-M devices.
Key features include an integrated 10/100 Mbit Ethernet MAC, USB 2.0 full-speed On-The-Go controller with dedicated DMA, eight DMA channels for low-CPU-overhead data movement, a 16-channel 10-bit ADC, two I2C, two SPI, and five UART/I2C modules, plus five 16-bit timers/capture/compare/PWM modules. The M4K core supports the MIPS DSP ASE, providing single-cycle MAC and saturating arithmetic for signal-processing workloads.
The PIC32MX6xx family is fabricated on a CMOS process that delivers the deterministic interrupt latency and 5-stage pipeline performance typical of the MIPS architecture, while the integrated Ethernet MAC and USB OTG reduce the need for external interface chips. Up to 83 general-purpose I/O lines and peripheral pin select (PPS) give layout flexibility, and MPLAB Harmony provides a unified firmware framework for these peripherals.
Typical applications include industrial Ethernet nodes (Modbus TCP, EtherNet/IP gateways), USB device and embedded-host products, networked sensors, HMI panels with TFT displays, audio processing with the DSP ASE, and bridging between Ethernet and USB in factory automation. The combination of Ethernet + USB + ample RAM also suits connected data loggers and protocol converters.
When designing with this device, plan the pin-out using the Peripheral Pin Select feature early; mismatched PPS mappings are the most common bring-up issue. For Ethernet, add the required 50 MHz reference oscillator circuit, bias resistor network, and pulse transformer specified in the PIC32MX5/6/7 family reference manual.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour PIC32MX675F256L-80I/PF — 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 PIC32MX675F256L-80I/PF (même facteur de forme et même empreinte) — différant par Package, ADC, USB, DMA Channels, I/O Pins.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC32MX675F256L-80V/PF
✅ Remplacement direct✓ En stock
$5.1 / unité
Voir la fiche technique →PIC32MX675F256LT-80I/PF
✅ Remplacement direct✓ En stock
$6.45 / unité
Voir la fiche technique →PIC32MX575F256L-80I/PF
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC32MX575F256L-80V/PF
✅ Remplacement direct✓ En stock
$6.55 / unité
Voir la fiche technique →PIC32MX575F512L-80I/PT
✅ Remplacement direct✓ En stock
$6.12 / unité
Voir la fiche technique →PIC32MX675F256L-80I/PF Valeurs maximales et caractéristiques électriques
| Core Architecture | MIPS32 M4K |
| CPU Bit Width | 32-bit |
| Maximum CPU Clock | 80 MHz |
| Program Memory (Flash) | 256 KB (256K x 8) |
| Data Memory (SRAM) | 64 KB |
| Plage de température de fonctionnement | -40C to +85C (Industrial) |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| Boîtier | 100-TQFP (14x14 mm) |
| Type de montage | Surface Mount |
| Ethernet MAC | 10/100 Mbit integrated |
| USB | USB 2.0 Full-Speed OTG |
| DMA Channels | 8 |
| ADC | 10-bit, 16-channel |
| I/O Pins | 83 (general-purpose) |
| Timers/CCP/PWM | 5 x 16-bit |
| UART/I2C/SPI | 5 UART, 2 I2C, 2 SPI |
| Statut RoHS | Compliant |
| Lead-Free / MSL | Lead-Free, MSL 3 |
Configuration des broches de PIC32MX675F256L-80I/PF
| Broche 1 | RG15 — General-purpose I/O / PMP data line |
| Broche 2 | RG12 — General-purpose I/O |
| Broche 3 | MCLR — Master Clear (reset) input, active low |
| Broche 4 | RG0 — General-purpose I/O |
| Broche 5 | VDD — Core supply voltage (3.3 V) |
| Broche 6 | RF1 — General-purpose I/O |
| Broche 7 | RF0 — General-purpose I/O |
| Broche 8 | VDD — Core supply voltage (3.3 V) |
| Broche 9 | RF2 — General-purpose I/O |
| Broche 10 | RF3 — General-purpose I/O |
| Broche 11 | RF4 — General-purpose I/O |
| Broche 12 | RF5 — General-purpose I/O |
| Broche 13 | RF6 — General-purpose I/O |
| Broche 14 | RF7 — General-purpose I/O |
| Broche 15 | RF8 — General-purpose I/O |
| Broche 16 | VSS — Ground reference |
| Broche 17 | RG1 — General-purpose I/O |
| Broche 18 | RG2 — General-purpose I/O |
| Broche 19 | RG3 — General-purpose I/O |
| Broche 20 | RG4 — General-purpose I/O |
| Broche 21 | RG5 — General-purpose I/O |
| Broche 22 | RG6 — General-purpose I/O |
| Broche 23 | RG7 — General-purpose I/O |
| Broche 24 | RG8 — General-purpose I/O |
| Broche 25 | RG9 — General-purpose I/O |
| Broche 26 | RG10 — General-purpose I/O |
| Broche 27 | RG11 — General-purpose I/O |
| Broche 28 | RG13 — General-purpose I/O |
| Broche 29 | RG14 — General-purpose I/O |
| Broche 30 | VDD — Core supply voltage (3.3 V) |
| Broche 31 | VSS — Ground reference |
| Broche 32 | RA0 — General-purpose I/O / analog input |
| Broche 33 | RA1 — General-purpose I/O / analog input |
| Broche 34 | RA2 — General-purpose I/O / analog input |
| Broche 35 | RA3 — General-purpose I/O / analog input |
| Broche 36 | RA4 — General-purpose I/O / analog input |
| Broche 37 | RA5 — General-purpose I/O / analog input |
| Broche 38 | RA6 — General-purpose I/O / analog input |
| Broche 39 | RA7 — General-purpose I/O / analog input |
| Broche 40 | RB0 — General-purpose I/O / programming |
| Broche 41 | RB1 — General-purpose I/O / programming |
| Broche 42 | RB2 — General-purpose I/O |
| Broche 43 | RB3 — General-purpose I/O |
| Broche 44 | RB4 — General-purpose I/O |
| Broche 45 | RB5 — General-purpose I/O |
| Broche 46 | RB6 — General-purpose I/O / programming clock |
| Broche 47 | RB7 — General-purpose I/O / programming data |
| Broche 48 | RB8 — General-purpose I/O |
| Broche 49 | RB9 — General-purpose I/O |
| Broche 50 | RB10 — General-purpose I/O |
| Broche 51 | RB11 — General-purpose I/O |
| Broche 52 | RB12 — General-purpose I/O |
| Broche 53 | RB13 — General-purpose I/O |
| Broche 54 | RB14 — General-purpose I/O |
| Broche 55 | RB15 — General-purpose I/O |
| Broche 56 | VSS — Ground reference |
| Broche 57 | VDD — Core supply voltage (3.3 V) |
| Broche 58 | RC1 — General-purpose I/O |
| Broche 59 | RC2 — General-purpose I/O |
| Broche 60 | RC3 — General-purpose I/O |
| Broche 61 | RC4 — General-purpose I/O |
| Broche 62 | VDD — Core supply voltage (3.3 V) |
| Broche 63 | VBUS — USB bus voltage detect |
| Broche 64 | VDD — Core supply voltage (3.3 V) |
| Broche 65 | RC5 — General-purpose I/O |
| Broche 66 | RC6 — General-purpose I/O |
| Broche 67 | RC7 — General-purpose I/O |
| Broche 68 | RC8 — General-purpose I/O |
| Broche 69 | RC9 — General-purpose I/O |
| Broche 70 | VDD — Core supply voltage (3.3 V) |
| Broche 71 | VSS — Ground reference |
| Broche 72 | RC10 — General-purpose I/O |
| Broche 73 | RC11 — General-purpose I/O |
| Broche 74 | RC12 — General-purpose I/O |
| Broche 75 | RC13 — General-purpose I/O |
| Broche 76 | RC14 — General-purpose I/O |
| Broche 77 | RC15 — General-purpose I/O |
| Broche 78 | RD0 — General-purpose I/O / PMP data line |
| Broche 79 | RD1 — General-purpose I/O / PMP data line |
| Broche 80 | RD2 — General-purpose I/O / PMP data line |
| Broche 81 | RD3 — General-purpose I/O / PMP data line |
| Broche 82 | RD4 — General-purpose I/O / PMP data line |
| Broche 83 | RD5 — General-purpose I/O / PMP data line |
| Broche 84 | RD6 — General-purpose I/O / PMP data line |
| Broche 85 | RD7 — General-purpose I/O / PMP data line |
| Broche 86 | RD8 — General-purpose I/O / PMP data line |
| Broche 87 | RD9 — General-purpose I/O / PMP data line |
| Broche 88 | RD10 — General-purpose I/O / PMP data line |
| Broche 89 | RD11 — General-purpose I/O / PMP data line |
| Broche 90 | RD12 — General-purpose I/O / PMP data line |
| Broche 91 | RD13 — General-purpose I/O / PMP data line |
| Broche 92 | RD14 — General-purpose I/O / PMP data line |
| Broche 93 | RD15 — General-purpose I/O / PMP data line |
| Broche 94 | VSS — Ground reference |
| Broche 95 | VDD — Core supply voltage (3.3 V) |
| Broche 96 | RE0 — General-purpose I/O |
| Broche 97 | RE1 — General-purpose I/O |
| Broche 98 | RE2 — General-purpose I/O |
| Broche 99 | RE3 — General-purpose I/O |
| Broche 100 | RE4 — General-purpose I/O |
Applications typiques
PIC32MX675F256L-80I/PF convient pour 6 applications: Industrial Ethernet Node, USB Device / Embedded Host Product, Networked Sensor Data Logger, HMI Panel with TFT Display, Audio Processing with DSP Extensions, Protocol Bridge (Ethernet to USB / RS-485).
Industrial Ethernet Node
The PIC32MX675F256L-80I/PF's integrated 10/100 Mbit Ethernet MAC and 64 KB SRAM make it a strong fit for industrial Ethernet nodes running Modbus TCP, EtherNet/IP, or PROFINET gateways. The 80 MHz MIPS32 M4K core executes the TCP/IP stack with adequate headroom for application logic, while the 256 KB Flash holds both the Harmony TCP/IP stack and application firmware without external memory. Place the MCU adjacent to the Ethernet PHY and follow the bias-resistor and pulse-transformer layout from the PIC32MX5/6/7 family reference manual; an external 50 MHz reference oscillator is required for the Ethernet MAC.
Recommandé
USB Device / Embedded Host Product
The integrated USB 2.0 full-speed On-The-Go controller supports both device and embedded-host roles, enabling products such as USB-to-UART bridges, USB data loggers, or USB human-interface devices without an external interface IC. The 8 DMA channels offload USB endpoint servicing from the CPU, and 64 KB SRAM buffers USB transactions efficiently. Use the Harmony USB stack to reduce firmware development time; pair with USBLC6-2SC6 ESD protection on D+/D- lines and follow USB-IF impedance guidelines (90 ohm differential) on the PCB.
Recommandé
Networked Sensor Data Logger
The combination of Ethernet, USB, 10-bit 16-channel ADC, and ample 64 KB SRAM makes the PIC32MX675F256L-80I/PF ideal for a remote sensor data logger that posts readings to a server over Modbus TCP or HTTP. The 16 ADC channels cover multi-sensor panels (temperature, pressure, flow), and the 8 DMA channels enable background ADC-to-RAM transfers without CPU intervention. Use 3.3 V sensor supplies and add input protection (TVS + RC filter) on each ADC input; plan flash wear by storing sampled data in external EEPROM rather than writing Flash on every sample.
Recommandé
HMI Panel with TFT Display
For HMI panels driving a small TFT (3.5" to 5") with touch, the PIC32MX675F256L-80I/PF provides enough RAM for a framebuffer and the GPIO count (83 pins) needed for an 8/16-bit parallel display interface plus touch-sensing I/O. The 256 KB Flash holds a lightweight graphics library and the application UI; the 5 x 16-bit timers generate backlight PWM and buzzer tones. Use the PMP (Parallel Master Port) peripheral for fast display updates and AR1021 for resistive touch; debounce all keypad inputs and isolate the display backlight driver with a logic-level MOSFET.
Recommandé
Audio Processing with DSP Extensions
The MIPS32 M4K core includes the MIPS DSP ASE, providing single-cycle MAC and saturating arithmetic - useful for audio effects, sample-rate conversion, or simple codec preprocessing. With 64 KB SRAM, the MCU handles stereo 16-bit audio at 48 kSPS in real time, while Ethernet or USB transports the audio stream. Use DMA to feed I2S peripherals from RAM buffers; design the PCB with separate analog and digital ground planes and place the audio CODEC on the analog domain to keep DAC SNR above 90 dB.
Recommandé
Protocol Bridge (Ethernet to USB / RS-485)
Bridge legacy RS-485 or UART-based fieldbus networks onto Ethernet or USB with a single PIC32MX675F256L-80I/PF. The 5 UARTs cover multi-port RS-485 nodes (with external transceiver ICs), while Ethernet or USB host the upstream connection. The 256 KB Flash holds both the upstream TCP/IP or USB stack and downstream protocol handlers; DMA offloads continuous serial stream processing. Use isolated RS-485 transceivers (ADM2587E) on fieldbus ports and add common-mode chokes on Ethernet to meet industrial EMC requirements.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC32MX675F256L-80I/PF — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC32MX675F256L-80V/PF | PIC32MX675F256LT-80I/PF | PIC32MX575F256L-80I/PF | PIC32MX575F256L-80V/PF |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-TQFP (14x14 mm) /PF | 100-TQFP (14x14 mm) /PF - same | 100-TQFP (14x14 mm) /PF - same | 100-TQFP (14x14 mm) /PF - same | 100-TQFP (14x14 mm) /PF - same |
| Core | MIPS32 M4K, 80 MHz | MIPS32 M4K, 80 MHz | MIPS32 M4K, 80 MHz | MIPS32 M4K, 80 MHz | MIPS32 M4K, 80 MHz |
| Flash | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| Ethernet MAC | 10/100 integrated | 10/100 integrated | 10/100 integrated | Not present | Not present |
| USB OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +105C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +105C (Extended) |
Principaux différenciateurs
- Same 100-pin TQFP (14x14) footprint with extended temperature grade (vs PIC32MX675F256L-80V/PF)
- Integrated Ethernet MAC and USB OTG in a single MCU (vs PIC32MX575F256L-80I/PF)
- Largest Flash density in the PIC32MX5/6/7 family per footprint (vs PIC32MX675F256L-80I/PT)
Notes de conception
Route the 50 MHz Ethernet reference oscillator traces as short as possible and shield the crystal traces from digital signal crossings. Place the Ethernet pulse transformer within 25 mm of the RJ45 jack, and keep the 49.9 ohm 1% bias resistors and 0.01 uF bias capacitor within 5 mm of the ETHRJ45/ERBIAS pins per the PIC32MX5/6/7 family reference manual section on Ethernet physical interface.
Decouple every VDD pin with a 0.1 uF ceramic capacitor placed within 3 mm of the pin, and add a single 10 uF bulk capacitor shared across all VDD rails. The MCU can source/sink significant transient currents when Ethernet and USB operate simultaneously; inadequate bulk decoupling causes brown-out resets. Use a low-noise 3.3 V LDO such as MCP1700 with at least 200 mA headroom above the worst-case MCU consumption.
The Peripheral Pin Select (PPS) feature lets digital peripherals be remapped to most I/O pins. Plan the PPS mapping early and lock it in firmware configuration bits - changing the mapping mid-development wastes time because most peripherals (UART, SPI, PWM, input capture) require explicit PPS unlock sequences. Reserve dedicated I/O for JTAG (TCK/TMS/TDI/TDO) and trace (TRCLK/TRD0/TRD1 if used) so debug does not conflict with peripherals.
Do not skip the external Ethernet bias-resistor network (two 49.9 ohm 1% resistors and one 0.01 uF capacitor in a specific topology) - without it the Ethernet PHY will not link. Also do not omit the VBUS voltage divider for USB OTG host mode, which requires sampling VBUS through a resistor network on a dedicated pin. Both networks are mandatory even if only the device or only the host role is used.
Estimated: At maximum CPU activity (80 MHz with all peripherals active), the PIC32MX675F256L draws approximately 75 mA at 3.3 V, dissipating ~250 mW. In the 100-pin TQFP (14x14 mm) package with typical PCB layout, junction-to-ambient thermal resistance is approximately 35 C/W, giving a temperature rise of about 9 C above ambient - well within the industrial 85 C limit. Industrial applications need only standard PCB copper pour; no external heatsink required.
Informations de conformité
RoHS compliant and lead-free per Microchip product page and 'PF' suffix package designation. Not AEC-Q100 qualified - for automotive applications, consider the PIC32MX family V variants or dedicated automotive-qualified parts.
