PIC32MX320F128HT-80I/PT - 80MHz 32-bit MCU 128KB Flash | Microchip
Référence : PIC32MX320F128HT-80I/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $6.85 | $6,85 |
| 10 | $6.2 | $62,00 |
| 100 | $5.5 | $550,00 |
| 500 | $4.95 | $2 475,00 |
| 1 000 | $4.45 | $4 450,00 |
PIC32MX320F128HT-80I/PT Présentation
A 32-bit microcontroller (MCU) is a single-chip computer that integrates a high-performance processor core, Flash program memory, SRAM data memory, and a rich set of on-chip peripherals (ADC, timers, USB, UART, SPI, I2C). PIC32MX parts use the MIPS M4K core, placing them in the broader hierarchy MCU -> microcontroller -> embedded processor -> semiconductor, and they are widely deployed when 8/16-bit parts lack the throughput or memory needed for graphical user interfaces, USB stacks, or real-time control loops.
Key features of this part include 128 KB on-chip Flash organized as 128K x 8, 16 KB SRAM, an 80 MHz maximum CPU clock (40 MHz system clock for peripherals), five 16-bit timers/counters, two I2C, two SPI, two UART channels, USB 2.0 full-speed device/host/OTG, a 16-channel 10-bit ADC with 1 Msps, and a parallel master port. The industrial temperature grade (-40C to +85C) and 2.3V-3.6V single supply operation simplify integration into harsh environments.
The architecture combines a 5-stage pipelined MIPS32 core with single-cycle multiplication and hardware divide, enabling 1.56 DMIPS/MHz and excellent deterministic interrupt response. The PMD (peripheral module disable) and power-saving modes let idle peripherals draw near-zero current, which is critical for USB bus-powered and battery-backed designs.
Typical applications include USB human-interface devices, industrial control and HMI panels, embedded web servers, data loggers, sensor hubs, and low-cost graphics terminals. The 80 MHz performance, USB, and 128 KB Flash cover most mid-range connected-embedded workloads.
When designing with this MCU, budget for a 2.3V-3.6V LDO and follow Microchip's recommended decoupling network (100 nF + 10 uF bulk). Always program the device through the ICSP interface using MPLAB X IDE + XC32 compiler; never assume 80 MHz operation without proper PLL configuration.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes beyond what is in the manufacturer datasheet alone.
Alternatives de remplacement direct pour PIC32MX320F128HT-80I/PT — 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 PIC32MX320F128HT-80I/PT (même facteur de forme et même empreinte) — différant par ADC, Core Architecture, I/O Pins, Maximum CPU Frequency, Package.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC32MX320F128H-80I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC32MX340F128HT-80I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC32MX320F128HT-40I/PT
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC32MX270F256D-I/PT
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC32MX230F256D-50I/PT
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$4.15 / unité
Voir la fiche technique →PIC32MX150F128D-I/PT
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$2.51 / unité
Voir la fiche technique →PIC32MX170F256B-I/ML
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$3.25 / unité
Voir la fiche technique →PIC32MX320F128HT-80I/PT Valeurs maximales et caractéristiques électriques
| Core | MIPS32 M4K |
| Core Architecture | 32-bit RISC, 5-stage pipeline |
| Maximum CPU Frequency | 80 MHz |
| System Clock | 40 MHz (peripheral bus) |
| Program Memory (Flash) | 128 KB (128K x 8) |
| Data Memory (SRAM) | 16 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| I/O Pins | 53 |
| ADC | 10-bit, 16-channel, 1 Msps |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| UART | 2 |
| SPI | 2 |
| I2C | 2 |
| Timers | 5 x 16-bit |
| Boîtier | 64-pin TQFP (PT), 10x10 mm |
| Type de montage | Surface Mount |
| Température de fonctionnement | -40C to +85C (Industrial, -I suffix) |
| Statut RoHS | Compliant |
| Lead-Free | Yes |
Configuration des broches de PIC32MX320F128HT-80I/PT
| Broche 1 | RP15/PMA0/PMD15/AN15/SS2/RF5 — Remappable I/O / Parallel Master Port Address bit 0 |
| Broche 2 | RP14/PMA1/PMD14/AN14/SCK2/RF4 — Remappable I/O / SPI2 clock |
| Broche 3 | RP13/PMD13/AN13/C2IN-/OCFA/RF3 — Remappable I/O / Comparator input |
| Broche 4 | RP12/PMD12/AN12/C2IN+/RF2 — Remappable I/O / Comparator input |
| Broche 5 | RP11/OC5/PMRD/RF1 — Remappable I/O / Output Compare 5 |
| Broche 6 | RP10/PMWR/U6TX/RF0 — Remappable I/O / PMP write strobe |
| Broche 7 | SDA2/RA15 — I2C2 data / GPIO |
| Broche 8 | SCL2/RA14 — I2C2 clock / GPIO |
| Broche 9 | RA9/TDI — JTAG TDI / GPIO |
| Broche 10 | RA10/TCK — JTAG TCK / GPIO |
| Broche 11 | RA1/PGEC1 — ICSP clock / GPIO |
| Broche 12 | RA0/PGED1 — ICSP data / GPIO |
| Broche 13 | RA4/SOSCO — Secondary oscillator / GPIO |
| Broche 14 | RA5/SOSCI — Secondary oscillator / GPIO |
| Broche 15 | VDD — Positive supply (3.3V) |
| Broche 16 | RG15 — GPIO / PMP address |
| Broche 17 | RG13 — GPIO / PMP address |
| Broche 18 | RG12 — GPIO / PMP address |
| Broche 19 | RG14 — GPIO / PMP address |
| Broche 20 | VSS — Ground |
| Broche 21 | RG0/DEVCFG0 — GPIO / PMP data |
| Broche 22 | RG1 — GPIO / PMP data |
| Broche 23 | RG2 — GPIO / PMP data |
| Broche 24 | RG3 — GPIO / PMP data |
| Broche 25 | RE0/PMD0 — GPIO / PMP data |
| Broche 26 | RE1/PMD1 — GPIO / PMP data |
| Broche 27 | RE2/PMD2 — GPIO / PMP data |
| Broche 28 | RE3/PMD3 — GPIO / PMP data |
| Broche 29 | RE4/PMD4 — GPIO / PMP data |
| Broche 30 | RE5/PMD5 — GPIO / PMP data |
| Broche 31 | RE6/PMD6 — GPIO / PMP data |
| Broche 32 | RE7/PMD7 — GPIO / PMP data |
| Broche 33 | VDD — Positive supply (3.3V) |
| Broche 34 | RB0/PGED2/AN0 — ICSP data / ADC ch0 |
| Broche 35 | RB1/PGEC2/AN1 — ICSP clock / ADC ch1 |
| Broche 36 | RB2/AN2 — GPIO / ADC ch2 |
| Broche 37 | RB3/AN3 — GPIO / ADC ch3 |
| Broche 38 | RB4/AN4 — GPIO / ADC ch4 |
| Broche 39 | RB5/AN5 — GPIO / ADC ch5 |
| Broche 40 | RB6/AN6/OC1 — GPIO / ADC ch6 / OC1 |
| Broche 41 | RB7/AN7/OC2 — GPIO / ADC ch7 / OC2 |
| Broche 42 | VSS — Ground |
| Broche 43 | RB8/AN8/C1OUT — GPIO / ADC ch8 / Comparator out |
| Broche 44 | RB9/AN9/C2OUT — GPIO / ADC ch9 / Comparator out |
| Broche 45 | RB10/AN10 — GPIO / ADC ch10 |
| Broche 46 | RB11/AN11 — GPIO / ADC ch11 |
| Broche 47 | RC1/AN12 — GPIO / ADC ch12 |
| Broche 48 | RC2/AN13 — GPIO / ADC ch13 |
| Broche 49 | RC3/AN14 — GPIO / ADC ch14 |
| Broche 50 | RC4/AN15 — GPIO / ADC ch15 |
| Broche 51 | VDD — Positive supply (3.3V) |
| Broche 52 | OSC1/CLKI/RC12 — Crystal input / external clock |
| Broche 53 | OSC2/CLKO/RC15 — Crystal output / system clock out |
| Broche 54 | VSS — Ground |
| Broche 55 | RC13/CVREF — GPIO / comparator reference |
| Broche 56 | RC14 — GPIO |
| Broche 57 | RA6/TMS — JTAG TMS / GPIO |
| Broche 58 | RA7/TDO — JTAG TDO / GPIO |
| Broche 59 | RD0/SDO1 — SPI1 data out / GPIO |
| Broche 60 | RD1/SDI1 — SPI1 data in / GPIO |
| Broche 61 | RD2/SCK1 — SPI1 clock / GPIO |
| Broche 62 | RD3/SS1 — SPI1 slave select / GPIO |
| Broche 63 | RD4/SDO2/U1TX — SPI2/UART1 TX / GPIO |
| Broche 64 | RD5/SDI2/U1RX — SPI2/UART1 RX / GPIO |
Applications typiques
PIC32MX320F128HT-80I/PT convient pour 6 applications: USB Human-Interface Devices (HID), Industrial Control and HMI Panels, Embedded Web Servers and TCP/IP Connectivity, Data Acquisition and Sensor Hubs, Low-Cost Graphics and LCD Terminals, Consumer Electronics and Home Appliance Controllers.
USB Human-Interface Devices (HID)
The PIC32MX320F128HT-80I/PT is well suited for USB HID peripherals such as custom keyboards, mice, game controllers, and industrial input panels. Its integrated USB 2.0 full-speed controller (device, host, OTG) eliminates the need for an external PHY, and the 80 MHz MIPS M4K core processes HID reports with deterministic interrupt latency. The 128 KB Flash holds the USB stack plus a 2 KB bootloader, while 16 KB SRAM comfortably buffers HID reports. Placed on a 4-layer board with 0.1uF + 4.7uF decoupling near the VDD pins, it delivers full-speed USB throughput with low EMI.
Recommandé
Industrial Control and HMI Panels
The 53 GPIO pins of the PIC32MX320F128HT-80I/PT directly drive 7-segment displays, keypads, and relay outputs in industrial HMI front panels. The 16-channel 10-bit ADC samples 4-20 mA loop sensors at 1 Msps, and the 5 x 16-bit timers generate precise PWM outputs for motor or valve control. The industrial -40C to +85C temperature grade supports factory-floor operation. The 80 MHz core plus DMA offload keeps the UI responsive while running control loops, and the 16 KB SRAM holds a 128-segment LCD buffer plus Modbus RTU frame.
Recommandé
Embedded Web Servers and TCP/IP Connectivity
The PIC32MX320F128HT-80I/PT is widely used in low-cost connected devices running Microchip's TCP/IP stack (or lwIP) for embedded web servers and MQTT clients. The 128 KB Flash accommodates the TCP/IP stack, an HTTP server, and application logic, while 16 KB SRAM serves socket buffers. The 80 MHz core and DMA deliver the throughput needed for several concurrent sockets at moderate data rates. With an external ENC28J60 or ENC424J600 Ethernet controller, it becomes a full-featured web server in industrial or building-automation applications.
Recommandé
Data Acquisition and Sensor Hubs
The 16-channel 10-bit 1 Msps ADC of the PIC32MX320F128HT-80I/PT enables multi-sensor data acquisition at 100 kHz aggregate sample rates, suitable for vibration, temperature, and process-monitoring applications. The 53 I/O pins interface with SPI sensors, I2C peripherals, and parallel ADCs, while the 16 KB RAM holds time-stamped sample buffers for SD-card logging. The device's DMA engine moves ADC data to RAM without CPU intervention, leaving 80% of the core free for filtering, FFT, or compression before writing to removable storage.
Recommandé
Low-Cost Graphics and LCD Terminals
The PIC32MX320F128HT-80I/PT drives small TFT or OLED graphical displays (up to 320x240 QVGA) with the PMP (Parallel Master Port) peripheral in 8-bit mode. The 80 MHz MIPS M4K core can update full-screen buffers at 30 fps, while the 16 KB SRAM holds a 320x240x1bpp monochrome framebuffer or a smaller RGB565 tile. Designers often pair it with the SSD1963 or ILI9341 controller, sending frame data via PMP and reading touch input over SPI. The 53 I/O frees pins for backlight PWM and touch interrupt.
Recommandé
Consumer Electronics and Home Appliance Controllers
The PIC32MX320F128HT-80I/PT is used in consumer appliances such as coffee machines, washing-machine front panels, and air-conditioner controllers. The 80 MHz core handles user-interface logic, sensor fusion, and motor-control loops; USB enables firmware update and diagnostics. The integrated 16-bit timers generate precise PWM for TRIAC or IGBT drivers, and the 53 I/O connect keypads, LED rings, and rotary encoders. With a 3.3V LDO and ESD-protected USB, the design meets consumer safety and reliability expectations.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC32MX320F128HT-80I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC32MX320F128H-80I/PT | PIC32MX340F128HT-80I/PT | PIC32MX270F256D-I/PT | PIC32MX230F256D-50I/PT | PIC32MX150F128D-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-TQFP (PT), 10x10 mm | 64-TQFP (PT) - same | 64-TQFP (PT) - same | 64-TQFP (PT) - same | 64-TQFP (PT) - same | 64-TQFP (PT) - same |
| Maximum CPU Frequency | 80 MHz | 80 MHz | 80 MHz | 50 MHz | 50 MHz | 40 MHz |
| Flash | 128 KB | 128 KB | 128 KB | 256 KB | 256 KB | 128 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 64 KB | 16 KB | 32 KB |
| USB | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed + CAN | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed |
| I/O Pins | 53 | 53 | 53 | 53 | 53 | 53 |
| ADC | 10-bit, 16-ch, 1 Msps | 10-bit, 16-ch, 1 Msps | 10-bit, 16-ch, 1 Msps | 10-bit, 28-ch, 1 Msps | 10-bit, 28-ch, 1 Msps | 10-bit, 28-ch, 1 Msps |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Principaux différenciateurs
- 100% register/firmware compatible with PIC32MX320F128H-80I/PT (vs PIC32MX320F128H-80I/PT)
- Highest CPU clock in the 64-TQFP 128 KB Flash class (vs PIC32MX270F256D-I/PT (50 MHz, 256 KB Flash))
- Mature, widely-supported silicon with full Microchip toolchain (vs Generic 32-bit MCU alternatives from non-Microchip vendors)
Notes de conception
The PIC32MX320F128HT-80I/PT operates from 2.3V to 3.6V and has multiple VDD/VSS pins (15, 20, 33, 42, 51, 54). Place a 100 nF 0.1uF X7R decoupling capacitor within 3 mm of every VDD/VSS pair, plus a single 4.7uF to 10uF bulk capacitor near the IC. The internal 1.8V regulator powers the core; no external core supply is needed. USB bus-powered designs must enforce <100 mA average inrush to comply with USB 2.0 specs.
Do not assume 80 MHz operation out of reset: the device boots on the FRC (internal 8 MHz) oscillator. To reach 80 MHz you must configure the PLL with the correct divider/multiplier and switch the system clock source. Failing to set the SYSKEY register leaves configuration registers locked. The ICSP pins PGEC1/PGED1 (RA1/RA0) must remain accessible for in-circuit programming - do not repurpose them as outputs in production boards without a debug header.
The 64-pin TQFP (10x10 mm) has 0.5 mm pitch, so use 0.25 mm via-in-pad or 0.2 mm traces with 0.2 mm clearances for the inner pins. Place the 8 MHz primary crystal within 5 mm of OSC1/OSC2 with traces symmetrically matched. Route the USB D+/D- differential pair with 90-ohm differential impedance and keep them short and isolated. Connect all 4 VSS pins and all 3 VDD pins with low-impedance pours to avoid ground bounce during USB enumeration.
Informations de conformité
RoHS and lead-free per Microchip product page. Industrial temperature grade (-40C to +85C) but not AEC-Q100 qualified for automotive. For automotive, consider PIC32MX variants with -V or automotive suffixes, or migrate to dsPIC33/PIC32MK families.
