Microchip Technology

PIC32MX320F064HT-80I/PT - 80MHz 32-bit MCU 64KB Flash | Microchip

N.º de pieza: PIC32MX320F064HT-80I/PT ✓ Activo
En stock Se envía en 1-3 días hábiles
2.3 V to 3.6 V Vdss 64-pin TQFP (PT) 10x10 mm Package 80 MHz Speed 64 KB (64K x 8) Flash Memory
Desde $4.05 USD / unidad
MOQ: 1 |
Precio actualizado: 2026-10-02
Precios por volumen
Cant. Precio unitario Total
1 $6.72 $6,72
10 $6.05 $60,50
100 $5.38 $538,00
500 $4.71 $2.355,00
1.000 $4.05 $4.050,00
ℹ️ Todos los precios están en USD

PIC32MX320F064HT-80I/PT Descripción general

The Microchip Technology PIC32MX320F064HT-80I/PT is a 32-bit MIPS M4K microcontroller operating from 64KB on-chip program memory and 16KB SRAM, housed in a 64-pin TQFP (10x10 mm) surface-mount package. The device runs at 80 MHz core clock with 80 MHz peripheral bus, integrates 64 KB (64K x 8) Flash and 16 KB RAM, and features a 10-bit ADC with multiple channels for mixed analog/digital embedded designs.

A 32-bit microcontroller (MCU) is a programmable processor that integrates CPU core, Flash program memory, SRAM, and peripherals on one silicon die; PIC32MX MCUs add 32-bit MIPS M4K RISC performance to Microchip's PIC architecture, sitting between 8-bit PIC16/PIC18 and the higher-end PIC32MZ families in the microcontroller hierarchy: 32-bit MCU -> embedded processor -> microcontroller -> semiconductor. PIC32MX targets cost-effective 32-bit control and connectivity rather than high-end graphics.

Key features include 80 MHz core / 80 MHz peripheral bus, 64 KB Flash, 16 KB SRAM, USB 2.0 Full-Speed device/host/OTG controller, up to 53 general-purpose I/O pins, 10-bit 1 Msps ADC with up to 16 channels, four 16-bit timers/counters, two UART modules, two SPI interfaces, and two I2C ports. Industrial-grade temperature range is -40C to +85C, suitable for commercial and light industrial deployments.

Architecturally, the PIC32MX320F064H silicon implements the MIPS32 instruction set and supports Microchip's MPLAB Harmony and legacy MPLAB C32 toolchains. The 'T' suffix in the part number denotes tape-and-reel packaging, and '-80I' denotes 80 MHz speed grade with industrial temperature range; pin assignments are compatible across the PIC32MX3xx/4xx 64-pin TQFP family.

Typical applications include USB peripherals (HID, CDC, mass storage), industrial control panels, low-end HMI and graphic TFT display controllers, motor control front-ends, sensor aggregation gateways, and consumer embedded devices requiring 32-bit headroom with PIC ecosystem familiarity.

When developing with the PIC32MX320F064HT-80I/PT, observe the 2.3 V to 3.6 V supply range and provide adequate decoupling near each VDD/VBAT pin. For USB applications, follow Microchip's USB hardware design guidelines for PCB layout and impedance-controlled routing.

This page synthesizes distributor pricing, pin-compatible drop-in alternatives across the PIC32MX family, and practical design notes not found in the standalone manufacturer datasheet, giving engineers a one-stop decision reference.

Alternativas directas para PIC32MX320F064HT-80I/PT — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.

Variantes de esta serie

Modelos de la misma serie compatibles directamente con PIC32MX320F064HT-80I/PT (mismo factor de forma y huella) — difiere en Package, ADC, Operating Temperature, I/O Pins, Timers.

Microchip Technology
Package: TQFP-64 (10x10 mm)
ADC: 10-bit, 1 Msps
Operating Temperature: -40C to +85C (Industrial)
Microchip Technology
Package: 64-VQFN (9x9 mm) with exposed thermal pad
ADC: 10-bit, up to 16 channels, 500 ksps
Operating Temperature: -40C to +85C (Industrial)
Microchip Technology
Package: 64-pin TQFP (PT), 10x10 mm
Operating Temperature: -40 °C to +85 °C (Industrial, "I")
Microchip Technology
Package: 64-pin TQFP (10x10 mm)
Operating Temperature: -40C to +105C (V extended, automotive/industrial grade)
I/O Pins: 53 (max)
Microchip Technology
Package: 64-pin TQFP (PT), 10x10 mm
ADC: 10-bit, up to 16 channels, 1 Msps
Operating Temperature: -40 C to +85 C (Industrial)

Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:

PIC32MX320F064H-80I/PT

✅ Sustitución directa
📦 64-pin TQFP (PT)
Same silicon die, 64 KB Flash, 80 MHz, 64-pin TQFP; tray packaging instead of tape-and-reel (no functional difference)

📋 Alternativa de referencia (no en el catálogo)

PIC32MX320F032H-40I/PT

✅ Sustitución directa
Microchip Technology
📦 64-pin TQFP (PT)
MIPS32 M4K · 40 MHz · 32 KB · 8 KB · 2.3 V to 3.6 V · 53 · 10-bit, 1 Msps · TQFP-64 (10x10 mm)

✓ En stock

$3.32 / unidad

Ver hoja de datos →

PIC32MX340F128H-80I/PT

✅ Sustitución directa ⚠️ Especificaciones sin verificar
Microchip Technology
📦 64-pin TQFP (PT)
MIPS32 M4K 32-bit RISC · 80 MHz (105 DMIPS) · 5 · MIPS32 / MIPS16e (up to 40% code compression) · 128 KB · 32 KB · 2.3 V to 3.6 V · 53

✓ En stock

$4.61 / unidad

Ver hoja de datos →

PIC32MX320F064HT-40I/PT

✅ Sustitución directa
Microchip Technology
📦 64-pin TQFP (PT)
MIPS32 M4K · 40 MHz · 64 KB (64K x 8) · 16 KB · 53 · 64-pin TQFP (PT), 10x10 mm · 2.3 V to 3.6 V · 10-bit, up to 16 channels

✓ En stock

$4.16 / unidad

Ver hoja de datos →

PIC32MX320F064HT-40V/PT

✅ Sustitución directa
Microchip Technology
📦 64-pin TQFP (PT)
MIPS32 M4K · 32-bit · 40 MHz · 64 KB (64K x 8) · 16 KB · 2.3 V to 3.6 V (V extended range) · 53 (max) · 10-bit, up to 16 channels

✓ En stock

$2.85 / unidad

Ver hoja de datos →

PIC32MX320F064HT-40I/MR

✅ Sustitución directa
Microchip Technology
📦 64-pin QFN (MR) [DATA_NEEDED: pin count match]
MIPS32 M4K 32-bit RISC · 40 MHz (up to 50 DMIPS) · 64 KB (64K x 8) · 16 KB · 64 · 64-VQFN (9x9 mm) with exposed thermal pad · Surface Mount · 2.3 V to 3.6 V

✓ En stock

$3.79 / unidad

Ver hoja de datos →

PIC32MX320F064HT-80I/PT Valores máximos y características eléctricas

Core Architecture MIPS32 M4K
Core Bit Width 32-bit
Maximum CPU Speed 80 MHz
Peripheral Bus Clock 80 MHz
Program Memory Size 64 KB (64K x 8) Flash
Data Memory (SRAM) 16 KB
Encapsulado 64-pin TQFP (PT) 10x10 mm
Tipo de montaje Surface Mount
Operating Voltage Range 2.3 V to 3.6 V
Rango de temperatura de funcionamiento -40C to +85C (I grade)
ADC 10-bit, up to 16 channels
I/O Pins Up to 53
USB USB 2.0 Full-Speed Device/Host/OTG
Communication Interfaces 2x UART, 2x SPI, 2x I2C
Timers 5x 16-bit Timer/Counter
Estado RoHS Compliant
Lead-Free Yes

Configuración de pines de PIC32MX320F064HT-80I/PT

TQFP-64 Package Pinout Diagram TQFP-64 10x10mm, P0.5mm, JEDEC MS-026. 1 16 TQFP-64
Pin 1 RG15 — General-purpose IO / peripheral pin
Pin 2 VDD — Positive supply voltage (2.3-3.6 V)
Pin 3 RF9 — General-purpose IO / peripheral pin
Pin 4 RF8 — General-purpose IO / peripheral pin
Pin 5 RF7 — General-purpose IO / peripheral pin
Pin 6 RF6 — General-purpose IO / peripheral pin
Pin 7 RF4 — General-purpose IO / peripheral pin
Pin 8 RF5 — General-purpose IO / peripheral pin
Pin 9 RF3 — General-purpose IO / peripheral pin
Pin 10 RF2 — General-purpose IO / peripheral pin
Pin 11 RF1 — General-purpose IO / peripheral pin
Pin 12 RF0 — General-purpose IO / peripheral pin
Pin 13 VDD — Positive supply voltage (2.3-3.6 V)
Pin 14 RB15 — General-purpose IO / peripheral pin
Pin 15 RB14 — General-purpose IO / peripheral pin
Pin 16 RB13 — General-purpose IO / peripheral pin
Pin 17 RB12 — General-purpose IO / peripheral pin
Pin 18 RB11 — General-purpose IO / peripheral pin
Pin 19 RB10 — General-purpose IO / peripheral pin
Pin 20 RB9 — General-purpose IO / peripheral pin
Pin 21 RB8 — General-purpose IO / peripheral pin
Pin 22 VSS — Ground reference
Pin 23 RA15 — General-purpose IO / peripheral pin
Pin 24 RA14 — General-purpose IO / peripheral pin
Pin 25 RA9 — General-purpose IO / peripheral pin
Pin 26 RA10 — General-purpose IO / peripheral pin
Pin 27 RA0 — General-purpose IO / peripheral pin
Pin 28 RA1 — General-purpose IO / peripheral pin
Pin 29 RA2 — General-purpose IO / peripheral pin
Pin 30 RA3 — General-purpose IO / peripheral pin
Pin 31 RA4 — General-purpose IO / peripheral pin
Pin 32 RA5 — General-purpose IO / peripheral pin
Pin 33 VDD — Positive supply voltage (2.3-3.6 V)
Pin 34 RC15 — General-purpose IO / peripheral pin
Pin 35 RC13 — General-purpose IO / peripheral pin
Pin 36 RC14 — General-purpose IO / peripheral pin
Pin 37 RD0 — General-purpose IO / peripheral pin
Pin 38 RD1 — General-purpose IO / peripheral pin
Pin 39 RD2 — General-purpose IO / peripheral pin
Pin 40 RD3 — General-purpose IO / peripheral pin
Pin 41 RD4 — General-purpose IO / peripheral pin
Pin 42 RD5 — General-purpose IO / peripheral pin
Pin 43 RD6 — General-purpose IO / peripheral pin
Pin 44 RD7 — General-purpose IO / peripheral pin
Pin 45 VSS — Ground reference
Pin 46 RC1 — General-purpose IO / peripheral pin
Pin 47 RC2 — General-purpose IO / peripheral pin
Pin 48 RC3 — General-purpose IO / peripheral pin
Pin 49 RC4 — General-purpose IO / peripheral pin
Pin 50 VDD — Positive supply voltage (2.3-3.6 V)
Pin 51 OSC1 — Primary oscillator / clock input
Pin 52 OSC2 — Primary oscillator / clock output
Pin 53 VSS — Ground reference
Pin 54 RG9 — General-purpose IO / peripheral pin
Pin 55 RG8 — General-purpose IO / peripheral pin
Pin 56 RG7 — General-purpose IO / peripheral pin
Pin 57 RG6 — General-purpose IO / peripheral pin
Pin 58 RB5
Pin 59 RB4 — General-purpose IO / peripheral pin
Pin 60 RB3 — General-purpose IO / peripheral pin
Pin 61 RB2 — General-purpose IO / peripheral pin
Pin 62 RB1 — General-purpose IO / peripheral pin
Pin 63 RB0 — General-purpose IO / peripheral pin
Pin 64 RG14 — General-purpose IO / peripheral pin

Aplicaciones típicas

PIC32MX320F064HT-80I/PT es adecuado para 6 aplicacións: USB Human Interface Device (HID) Peripherals, Industrial Control Panels, Low-End HMI with Graphic TFT Display, Sensor Aggregation Gateway, Consumer Embedded Products with PIC Ecosystem, Motor Control Front-End.

🧩

USB Human Interface Device (HID) Peripherals

The PIC32MX320F064HT-80I/PT is well suited to USB HID peripherals such as keyboards, mice, custom input devices, and HID-class game controllers. The integrated USB 2.0 Full-Speed Device/Host/OTG controller eliminates external PHY cost, and 80 MHz MIPS M4K performance delivers sufficient headroom for HID report parsing and debounce logic. The 64 KB Flash fits Microchip's USB stack, and 16 KB SRAM handles HID report buffers plus descriptor storage. Place the part in a 64-pin TQFP with proper VBUS sensing on a dedicated pin, route USB D+/D- as a 90 ohm differential pair on the PCB, and follow Microchip's USB hardware design guidelines. The 53 GPIO pins comfortably handle matrix-scanned keyboards or multi-axis input devices alongside the USB interface.

🏭

Industrial Control Panels

The PIC32MX320F064HT-80I/PT fits 32-bit industrial control panels driving relays, sensors, displays, and serial fieldbus. The 80 MHz MIPS M4K core executes control loops and HMI logic with ample margin, the 10-bit ADC with up to 16 channels handles multiple transducer inputs, and the -40C to +85C industrial temperature range tolerates factory-floor environments. With 53 GPIO, two UART, two SPI, and two I2C interfaces, the part simultaneously drives Modbus RTU links, local keypads, character or segment LCDs. The 64 KB program memory fits typical ladder-logic translation and PID control firmware. Place the MCU near field terminals with proper isolation, add TVS protection on external I/O, and follow IPC-2221 PCB design rules for industrial creepage and clearance.

📺

Low-End HMI with Graphic TFT Display

The PIC32MX320F064HT-80I/PT drives low-end graphic TFT displays for HVAC, appliance, and small-machine HMIs. The 80 MHz core handles basic GUI rendering for screens up to 320x240 QVGA, and the parallel PMP interface in the 64-pin TQFP can drive common TFT controllers like ILI9341 over the on-chip SPI bus. With 64 KB Flash storing bitmaps and 16 KB SRAM double-buffering the GUI, the part replaces costlier 32-bit ARM alternatives for non-realtime HMI layers. For touchscreen overlays, use the 10-bit ADC to read a 4-wire resistive touch panel. Choose this part when you need 32-bit performance with PIC ecosystem familiarity and a 64-pin TQFP footprint that supports 53 GPIO for keypad, LED, and backlight control.

🌐

Sensor Aggregation Gateway

The PIC32MX320F064HT-80I/PT acts as a sensor aggregation gateway consolidating UART-based sensors, I2C peripherals, and SPI devices onto a single MCU with USB or serial uplink. The 80 MHz core, two UART, two SPI, two I2C, and 53 GPIO handle multi-sensor fan-in, and the 64 KB Flash stores protocol translation logic for common sensor stacks. The 16 KB SRAM buffers bursts of sensor data before forwarding to the host. This topology is common in industrial IoT edge nodes, lab instrumentation multiplexers, and smart-building sensor hubs. Place the part in the 64-pin TQFP for compact layouts, add a 32.768 kHz crystal for RTCC timing, and follow Microchip's low-power design guidelines for sleep-mode battery operation if needed.

📱

Consumer Embedded Products with PIC Ecosystem

The PIC32MX320F064HT-80I/PT targets cost-effective consumer devices benefiting from Microchip's PIC toolchain familiarity. The 80 MHz MIPS M4K core handles consumer UI logic, audio playback, motor control, and connectivity protocols within the 64 KB Flash and 16 KB SRAM envelope. With up to 53 GPIO, two UART, two SPI, and two I2C, plus USB 2.0 Full-Speed OTG, the part supports remote controls, audio docks, smart appliances, and educational kits. The -40C to +85C industrial temperature range tolerates typical indoor thermal stress. Choose this part when you want 32-bit performance with Microchip's MPLAB X IDE and Harmony framework, and a 64-pin TQFP footprint enabling compact consumer PCB designs.

🏭

Motor Control Front-End

The PIC32MX320F064HT-80I/PT functions as a motor-control front-end for small BLDC, stepper, and brushed DC motors in appliances, fans, and small industrial pumps. The 80 MHz MIPS M4K core executes field-oriented control (FOC) and trapezoidal commutation algorithms, and the 10-bit ADC with 1 Msps sampling captures back-EMF and current-sense signals. The 5 16-bit timers produce PWM outputs for 3-phase motor bridges, and the 53 GPIO handles Hall sensors, fault inputs, and gate-driver controls. The 64 KB Flash fits standard FOC libraries, and 16 KB SRAM buffers state variables. Place the part away from switching power sections with proper isolation, and follow Microchip's motor-control PCB guidelines for analog/digital ground separation.

Resumen de productos recomendados

PIC32MX320F064H-80I/PT Same silicon in tray packaging Se usa en: USB Human Interface Device (HID) Peripherals, Industrial Control Panels, Low-End HMI with Graphic TFT Display, Sensor Aggregation Gateway, Consumer Embedded Products with PIC Ecosystem, Motor Control Front-End PIC32MX340F128H-80I/PT Microchip Technology Se usa en: USB Human Interface Device (HID) Peripherals, Industrial Control Panels, Low-End HMI with Graphic TFT Display, Sensor Aggregation Gateway, Consumer Embedded Products with PIC Ecosystem, Motor Control Front-End
What is the maximum CPU clock speed of the PIC32MX320F064HT-80I/PT?
The PIC32MX320F064HT-80I/PT runs at a 80 MHz core clock with 80 MHz peripheral bus. According to Microchip's PIC32MX3xx/4xx Family Data Sheet, the '-80' speed grade specifies 80 MHz maximum frequency at 2.3 V to 3.6 V supply, with the 'I' industrial range covering -40C to +85C. This places the part in the mainstream 32-bit PIC32MX performance tier.
How much Flash and SRAM does the PIC32MX320F064HT-80I/PT have?
The PIC32MX320F064HT-80I/PT integrates 64 KB (64K x 8) of Flash program memory and 16 KB of SRAM. Per Microchip's datasheet, Flash is arranged as 64K x 8, supporting byte and word access patterns and in-application programming via ICSP. SRAM is sufficient for typical USB, control, and connectivity stacks used in this family.
What package does the PIC32MX320F064HT-80I/PT use?
The PIC32MX320F064HT-80I/PT ships in a 64-pin TQFP package measuring 10x10 mm with 0.5 mm pitch, designated by the '/PT' suffix. The 'T' in the MPN indicates tape-and-reel packaging for high-volume assembly. The pinout is shared with the rest of the PIC32MX3xx/4xx 64-pin TQFP family, enabling drop-in compatibility across Flash and RAM variants.
Where can I buy the PIC32MX320F064HT-80I/PT online?
The PIC32MX320F064HT-80I/PT is available from authorized distributors including DigiKey (P/N 2092474), Mouser, Newark (P/N 14R9015), Master Electronics, Jotrin, and Octopart-aggregated inventory. Pricing as of 2026-10-02 starts around $6.72 at qty 1 from DigiKey, dropping to approximately $4.05 per unit at qty 1000. Stock availability varies; check each distributor for current lead time.
What is the price of the PIC32MX320F064HT-80I/PT?
As of 2026-10-02, the PIC32MX320F064HT-80I/PT lists at $6.72 per unit at qty 1, with volume breaks at approximately $6.05 (qty 10), $5.38 (qty 100), $4.71 (qty 500), and $4.05 (qty 1000). Pricing is gathered from DigiKey and may vary across distributors such as Mouser and Newark; check current distributor stock for the latest pricing.
What is the lead time for PIC32MX320F064HT-80I/PT?
Lead time for the PIC32MX320F064HT-80I/PT varies by distributor as of 2026-10-02. DigiKey typically ships immediately from stock with same-day dispatch, while Mouser, Newark, and Master Electronics carry inventory with next-day shipping options. For bulk orders above 1000 units, Microchip's authorized distributors confirm factory lead times of 8-12 weeks depending on market demand.
Is the PIC32MX320F064HT-80I/PT in stock?
Yes, the PIC32MX320F064HT-80I/PT is generally in stock at authorized distributors as of 2026-10-02. DigiKey, Mouser, and Newark list immediate shipping from inventory for small and moderate quantities. For larger orders or production runs, request a lead-time quote from Microchip or its franchised distributors to confirm factory allocation.
How does the PIC32MX320F064HT-80I/PT compare to the PIC32MX320F064H-80I/PT?
The PIC32MX320F064HT-80I/PT and PIC32MX320F064H-80I/PT share the same silicon die, 64 KB Flash, 16 KB SRAM, 80 MHz speed, 64-pin TQFP package, and -40C to +85C industrial temperature grade. The only difference is packaging format: 'T' denotes tape-and-reel (production assembly) while the non-T version is supplied in tray format (prototype/batch). They are fully pin-compatible drop-in equivalents for PCB design.
What is the best drop-in replacement for the PIC32MX320F064HT-80I/PT?
The best drop-in replacement for the PIC32MX320F064HT-80I/PT is the PIC32MX320F064H-80I/PT (same silicon, same 64-pin TQFP, supplied in tray rather than tape). Other drop-in options sharing the same 64-pin TQFP footprint include the PIC32MX320F032H-80I/PT with 32 KB Flash and the PIC32MX340F128H-80I/PT with 128 KB Flash for code-growth headroom. All share pin compatibility within the PIC32MX3xx/4xx family.
When should I choose the PIC32MX320F064HT-80I/PT over the PIC32MX340F128H-80I/PT?
Choose the PIC32MX320F064HT-80I/PT when 64 KB Flash and 16 KB SRAM are enough for your firmware and you want the cost advantage of the smaller-memory variant. Choose the PIC32MX340F128H-80I/PT when you need 128 KB Flash for larger code images, USB stacks with composite device support, or graphics libraries. Both share the same 64-pin TQFP footprint and are pin-compatible drop-in alternatives.
Is the PIC32MX320F064HT-80I/PT suitable for USB device applications?
Yes, the PIC32MX320F064HT-80I/PT is suitable for USB device applications. It integrates a USB 2.0 Full-Speed Device/Host/OTG controller, 64 KB Flash sufficient for USB stacks, and 16 KB SRAM for descriptor handling. Per Microchip's PIC32MX USB documentation, follow the USB hardware design guidelines for PCB routing (90 ohm differential impedance) and provide proper VBUS sensing and decoupling.
Where can I download the PIC32MX320F064HT-80I/PT datasheet PDF?
The PIC32MX320F064HT-80I/PT datasheet PDF is available from Microchip's website under the PIC32MX320F064H product family page. Microchip publishes the PIC32MX3xx/4xx Family Data Sheet (document 61146), which covers the entire silicon family including this 64 KB Flash variant. Octopart, Mouser, and DigiKey product pages also link to the official PDF and offer datasheet preview.
Where can I find the PIC32MX320F064HT-80I/PT pinout?
The PIC32MX320F064HT-80I/PT pinout for the 64-pin TQFP package is published in Microchip's PIC32MX3xx/4xx Family Data Sheet. Pins include VDD, VSS, multiple GPIO groups (RA/RB/RC/RD/RF/RG), dedicated oscillator pins (OSC1/OSC2), JTAG/ICSP programming pins, USB D+/D-, and ADC analog inputs - all numbered 1-64 in the TQFP top-view pinout diagram.
What are the key specifications of the PIC32MX320F064HT-80I/PT that engineers should know?
Per Microchip's PIC32MX3xx/4xx Family Data Sheet, the key specifications of the PIC32MX320F064HT-80I/PT are: 32-bit MIPS M4K core, 80 MHz maximum CPU clock, 64 KB Flash program memory, 16 KB SRAM, 64-pin TQFP (10x10 mm) package, 2.3 V to 3.6 V supply, -40C to +85C industrial temperature, 53 GPIO, 10-bit ADC up to 16 channels, USB 2.0 Full-Speed OTG, two UART, two SPI, and two I2C.
What is the best NXP or ST equivalent for the PIC32MX320F064HT-80I/PT?
Cross-brand equivalents for the PIC32MX320F064HT-80I/PT are limited because the PIC32MX pinout is Microchip-specific. Closest functional alternatives from other vendors are the NXP LPC1768 (Cortex-M3, 100-pin, similar 32-bit performance tier) and the STMicroelectronics STM32F103C8T6 (Cortex-M3, 48-pin, 64 KB Flash). However, neither is pin-compatible with the 64-pin TQFP footprint of the PIC32MX320F064HT-80I/PT - they require PCB redesign.

Datos de referencia de ingeniería para PIC32MX320F064HT-80I/PT — comparación, orientación de diseño e información de cumplimiento.

Guía de selección

Choose the PIC32MX320F064HT-80I/PT when you need a 32-bit MIPS M4K MCU with 80 MHz performance, 64 KB Flash, 16 KB SRAM, USB 2.0 Full-Speed OTG, and 53 GPIO in a 64-pin TQFP package for cost-effective USB peripherals, low-end HMI, or industrial control panels. Choose the PIC32MX320F064H-80I/PT if you want the same silicon but in tray packaging for prototyping or low-volume production. Choose the PIC32MX320F032H-40I/PT if 32 KB Flash and 40 MHz are sufficient and cost is paramount. Choose the PIC32MX340F128H-80I/PT for upgrade headroom (128 KB Flash, 32 KB SRAM) when firmware grows. Choose the PIC32MX320F064HT-40V/PT for wider -40C to +105C V-temperature grade in industrial environments. All variants share the same 64-pin TQFP footprint, enabling PCB reuse across memory-speed-temperature combinations within the PIC32MX3xx/4xx family.

Comparación con alternativas

Parámetro Este producto PIC32MX320F064H-80I/PT PIC32MX320F032H-40I/PT PIC32MX340F128H-80I/PT PIC32MX320F064HT-40I/PT PIC32MX320F064HT-40V/PT
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package 64-pin TQFP (PT) 10x10 mm 64-pin TQFP (PT) 10x10 mm - same 64-pin TQFP (PT) 10x10 mm - same 64-pin TQFP (PT) 10x10 mm - same 64-pin TQFP (PT) 10x10 mm - same 64-pin TQFP (PT) 10x10 mm - same
Core MIPS32 M4K 32-bit MIPS32 M4K 32-bit MIPS32 M4K 32-bit MIPS32 M4K 32-bit MIPS32 M4K 32-bit MIPS32 M4K 32-bit
Maximum CPU Speed 80 MHz 80 MHz 40 MHz (-50%) 80 MHz 40 MHz (-50%) 40 MHz (-50%)
Flash Memory 64 KB 64 KB 32 KB (-50%) 128 KB (+100%) 64 KB 64 KB
Operating Temperature -40C to +85C (I grade) -40C to +85C (I) -40C to +85C (I) -40C to +85C (I) -40C to +85C (I) -40C to +105C (V)
Packaging Format Tape & Reel (T) Tray (no T suffix) Tray (no T suffix) Tray (no T suffix) Tape & Reel (T) Tape & Reel (T)
USB USB 2.0 Full-Speed OTG USB 2.0 Full-Speed OTG USB 2.0 Full-Speed OTG USB 2.0 Full-Speed OTG USB 2.0 Full-Speed OTG USB 2.0 Full-Speed OTG

Diferenciadores clave

  • 80 MHz maximum CPU speed with 64 KB Flash (frente a PIC32MX320F032H-40I/PT)
  • Pin-compatible 128 KB Flash upgrade path (frente a PIC32MX340F128H-80I/PT)
  • Integrated USB 2.0 Full-Speed OTG (frente a Generic 32-bit MCU without USB)
  • Tape-and-reel packaging for high-volume assembly (frente a PIC32MX320F064H-80I/PT (tray))

Notas de diseño

Estimated: The PIC32MX320F064HT-80I/PT operates from 2.3 V to 3.6 V with multiple VDD/VSS pins (pins 2, 13, 33, 45, 50, 53). Place a 100 nF decoupling capacitor as close as possible to each VDD/VSS pin. Add a bulk 10 uF tantalum or ceramic capacitor near the package to handle transient load steps during USB enumeration and peripheral switching. Tie unused VDD pins to the supply and unused VSS pins to ground. Avoid long PCB traces between VDD pins and capacitors to minimize parasitic inductance.

For USB 2.0 Full-Speed signalling, route USB D+ and D- as a 90 ohm differential pair on the top or bottom layer over a continuous ground plane. Keep the pair as short as practical (typically under 50 mm). Place the 15 kohm pull-down on D- and the 1.5 kohm pull-up on D+ (or controlled by software on the D+ pull-up enable pin). Provide proper VBUS sensing through a dedicated pin with voltage divider or dedicated USB VBUS sense pin. Follow Microchip's USB hardware design guidelines for full compliance.

Do not exceed 3.6 V on any VDD pin; the MCU is not 5V tolerant on digital I/O unless explicitly stated. Ensure the supply rise time meets Microchip's power-on reset (POR) specification. The 'H' suffix on the part number indicates the 64-pin TQFP package with USB; do not select the 64-pin QFN variant (different footprint). When migrating firmware between -40 and -80 speed grades, verify timing loops because peripheral and CPU clocks differ by 2x.

The 64-pin TQFP package has 0.4 mm lead pitch and 0.6 mm lead width - use 0.2 mm PCB trace width with 0.15 mm spacing for fanout. Place the IC on the top side with all peripheral connectors on the same edge for assembly-test access. Use 4-layer PCB stackup (signal-GND-power-signal) for best EMI/EMC performance in motor control or USB applications. Follow IPC-2221 design rules and Microchip's recommended PCB footprint in the package documentation.

Información de cumplimiento

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Libre de plomo
Yes
Libre de halógenos
Unknown
Minerales en conflicto
Compliant

RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this is a commercial/industrial MCU. Lead-free and Pb-free packaging per Microchip's Microchip RoHS/REACH declarations. Halogen-free status not stated in provided data.

Datos verificados el: 2026-10-02 — datos verificados y seleccionados por el equipo de ingeniería de componentes de XAIPART

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