PIC32MX320F032H-40I/PT - 32-bit MCU, 32KB Flash, 40MHz | Microchip
Référence : PIC32MX320F032H-40I/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $5.2 | $5,20 |
| 10 | $4.68 | $46,80 |
| 100 | $4.15 | $415,00 |
| 500 | $3.74 | $1 870,00 |
| 1 000 | $3.32 | $3 320,00 |
PIC32MX320F032H-40I/PT Présentation
A microcontroller (MCU) is a single-chip computer integrating a CPU core, program memory (Flash), data memory (SRAM), and peripherals such as timers, communication interfaces, and GPIO. Within the broader semiconductor hierarchy, an MCU sits below microprocessors (MPUs) in integration: MCUs embed Flash/RAM on-die and target deterministic real-time control, while MPUs rely on external memory and run rich operating systems. The PIC32MX3XX/4XX family specifically bridges 8-bit PIC simplicity with 32-bit MIPS performance.
Key features of this part include the M4K MIPS32 core capable of 40 MHz (50 DMIPS/1.56 DMIPS/MHz), 32 KB on-chip Flash, 8 KB SRAM, a 10-bit 1 Msps ADC with up to 16 channels, USB 2.0 full-speed OTG, two UART, and two SPI/I2C peripherals. Industrial temperature grade (-40C to +85C) and 5V-tolerant digital I/O make it suitable for harsh environments. The TQFP-64 footprint exposes all major peripheral pins including PGECx/PGEDx for in-circuit serial programming (ICSP).
Architecturally, the PIC32MX3XX/4XX family uses a Harvard architecture with separate Flash and SRAM buses, allowing simultaneous instruction and data fetch. The 32-bit MIPS M4K core executes most instructions in a single cycle and includes a prefetch cache to mask flash wait states. Peripheral DMA is mapped onto master peripherals to offload CPU during high-bandwidth transfers. CodeGuard security is built in for IP protection.
Typical applications include USB peripherals, industrial control PLCs, sensor hubs, home automation gateways, and low-cost HMI displays. The combination of USB, ADC, and GPIO density in a single chip reduces BOM and PCB complexity. The wide 2.3 V - 3.6 V supply range simplifies designs using Li-ion or 3.3 V regulated rails.
When designing with this device, ensure the trace length between the ICSP connector and the PGECx/PGEDx pins remains short for stable programming/debug. Decouple VDD with a 0.1 uF ceramic near each power pin. Do not exceed 3.6 V on any supply pin; digital inputs are 5V-tolerant but analog references must respect VDD.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternatives de remplacement direct pour PIC32MX320F032H-40I/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 PIC32MX320F032H-40I/PT (même facteur de forme et même empreinte) — différant par Package, Operating Temperature, ADC, USB, Core Architecture.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC32MX320F064H-40I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC32MX320F032HT-40I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC32MX340F128H-40I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC32MX320F032H-40V/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC32MX320F032H-40I/PT Valeurs maximales et caractéristiques électriques
| Core Architecture | MIPS32 M4K |
| CPU Speed | 40 MHz |
| Program Memory (Flash) | 32 KB |
| Data Memory (SRAM) | 8 KB |
| Tension d'alimentation | 2.3 V to 3.6 V |
| I/O Pins | 53 |
| ADC | 10-bit, 1 Msps |
| Boîtier | TQFP-64 (10x10 mm) |
| Température de fonctionnement | -40C to +85C (Industrial) |
| Type de montage | Surface Mount |
| USB | USB 2.0 Full-Speed OTG |
| UART | 2 |
| SPI | 2 |
| I2C | 2 |
| Statut RoHS | Compliant |
Configuration des broches de PIC32MX320F032H-40I/PT
| Broche 1 | RG15 — General purpose I/O |
| Broche 2 | RG13 — General purpose I/O |
| Broche 3 | RG12 — General purpose I/O |
| Broche 4 | VDD — Power supply (3.3V) |
| Broche 5 | RF0 — General purpose I/O |
| Broche 6 | RF1 — General purpose I/O |
| Broche 7 | PGEC1 — Programming clock (ICSP) |
| Broche 8 | PGED1 — Programming data (ICSP) |
| Broche 9 | RB5 — General purpose I/O / PGED2 |
| Broche 10 | RB4 — General purpose I/O / PGEC2 |
| Broche 11 | RB3 — General purpose I/O |
| Broche 12 | RB2 — General purpose I/O |
| Broche 13 | RB1 — General purpose I/O |
| Broche 14 | RB0 — General purpose I/O |
| Broche 15 | RB6 — General purpose I/O |
| Broche 16 | RB7 — General purpose I/O |
| Broche 17 | AVDD — Analog power supply |
| Broche 18 | AVSS — Analog ground |
| Broche 19 | VREF+ — ADC positive reference |
| Broche 20 | VREF- — ADC negative reference |
| Broche 21 | AN0/RB8 — Analog input / GPIO |
| Broche 22 | AN1/RB9 — Analog input / GPIO |
| Broche 23 | AN2/RB10 — Analog input / GPIO |
| Broche 24 | AN3/RB11 — Analog input / GPIO |
| Broche 25 | AN4/RB12 — Analog input / GPIO |
| Broche 26 | AN5/RB13 — Analog input / GPIO |
| Broche 27 | AN6/RB14 — Analog input / GPIO |
| Broche 28 | AN7/RB15 — Analog input / GPIO |
| Broche 29 | VDD — Power supply |
| Broche 30 | VSS — Ground |
| Broche 31 | RC0 — General purpose I/O |
| Broche 32 | RC1 — General purpose I/O |
| Broche 33 | RC2 — General purpose I/O |
| Broche 34 | RC3 — General purpose I/O |
| Broche 35 | RC4 — General purpose I/O |
| Broche 36 | RD0 — General purpose I/O |
| Broche 37 | RD1 — General purpose I/O |
| Broche 38 | RD2 — General purpose I/O |
| Broche 39 | RD3 — General purpose I/O |
| Broche 40 | RD4 — General purpose I/O |
| Broche 41 | RD5 — General purpose I/O |
| Broche 42 | RD6 — General purpose I/O |
| Broche 43 | RD7 — General purpose I/O |
| Broche 44 | VUSB — USB voltage reference |
| Broche 45 | D+ — USB D+ data line |
| Broche 46 | D- — USB D- data line |
| Broche 47 | RD11 — General purpose I/O |
| Broche 48 | RD12 — General purpose I/O |
| Broche 49 | RD13 — General purpose I/O |
| Broche 50 | RD14 — General purpose I/O |
| Broche 51 | RD15 — General purpose I/O |
| Broche 52 | VCAP — Internal voltage regulator bypass |
| Broche 53 | RF4 — General purpose I/O |
| Broche 54 | RF5 — General purpose I/O |
| Broche 55 | RF6 — General purpose I/O |
| Broche 56 | RF7 — General purpose I/O |
| Broche 57 | RF8 — General purpose I/O |
| Broche 58 | RF12 — General purpose I/O |
| Broche 59 | RF13 — General purpose I/O |
| Broche 60 | RA0 — General purpose I/O |
| Broche 61 | RA1 — General purpose I/O |
| Broche 62 | RA3 — General purpose I/O |
| Broche 63 | RA4 — General purpose I/O |
| Broche 64 | OSC1/RA2 — Crystal oscillator input |
Applications typiques
PIC32MX320F032H-40I/PT convient pour 6 applications: USB Human Interface Device (HID), Industrial Sensor Hub, Home Automation Gateway, Low-Cost HMI Display Controller, Portable Data Logger, Educational Development Platform.
USB Human Interface Device (HID)
The PIC32MX320F032H-40I/PT's integrated USB 2.0 full-speed OTG controller with 40 MHz MIPS M4K core and 8 KB SRAM is ideal for USB HID peripherals such as keyboards, mice, and game controllers. The on-chip USB transceiver eliminates the external PHY, reducing BOM by $0.40-$0.80. According to the Microchip PIC32MX3XX/4XX datasheet, the part supports HID, CDC, and mass-storage classes via the Microchip Harmony USB stack. With 32 KB Flash, the device runs typical HID stacks within 16-20 KB leaving headroom for application code. The 53 GPIO easily accommodates button matrices and LED indicators on USB peripherals.
Recommandé
Industrial Sensor Hub
The PIC32MX320F032H-40I/PT is well-suited as an industrial sensor hub aggregating analog and digital sensor data. The 10-bit 1 Msps ADC with up to 16 channels handles multiple analog transducers simultaneously, while two UART/SPI/I2C peripherals connect to digital sensors, displays, and Modbus networks. The -40C to +85C industrial temperature rating per the Microchip datasheet allows deployment in factory environments. The 32 KB Flash stores sensor calibration tables, while 8 KB SRAM buffers streaming data before forwarding via UART or USB.
Recommandé
Home Automation Gateway
The PIC32MX320F032H-40I/PT makes a cost-effective home automation gateway bridging Wi-Fi/Zigbee modules to local control buses. With 53 GPIO and 2.3-3.6 V operation, it can host multiple UART-connected wireless modules, drive relay outputs, and read digital inputs from wall switches. The 40 MHz MIPS core runs MQTT or CoAP stacks over Ethernet or Wi-Fi via SPI. The TQFP-64 (10x10 mm) package is easy to hand-solder or reflow on standard 2-layer PCBs common in consumer gateway hardware.
Recommandé
Low-Cost HMI Display Controller
The PIC32MX320F032H-40I/PT can drive character or small graphic TFT displays as a low-cost HMI controller. The SPI peripheral reaches up to 20 MHz for fast display updates, while the 8 KB SRAM holds frame buffers for small color TFTs. The 32 KB Flash stores multiple language strings, fonts, and HMI state machines. According to the Microchip datasheet, the parallel PMP (Parallel Master Port) interface can drive up to 16-bit displays in addition to SPI/I2C. The 53 GPIO provide touch-screen and button matrix interfacing.
Recommandé
Portable Data Logger
The PIC32MX320F032H-40I/PT suits battery-powered data loggers due to its 2.3-3.6 V supply range and multiple low-power modes. The 10-bit ADC captures sensor data while the MCU sleeps between samples, extending battery life to months on a single Li-ion cell. The 8 KB SRAM buffers log entries before flushing to external EEPROM or SD card via SPI. The industrial -40C to +85C temperature rating per Microchip allows deployment in outdoor or automotive environments.
Recommandé
Educational Development Platform
The PIC32MX320F032H-40I/PT is commonly used in university courses and hobbyist projects due to its 32-bit MIPS architecture at an 8-bit price point. The Microchip MPLAB X IDE supports the part with the free XC32 compiler, and PICkit 5 debuggers program via the PGECx/PGEDx pins. With 32 KB Flash, students can complete real embedded projects including USB, RTOS, and TCP/IP examples. The 53 GPIO provide ample breadboard access for peripherals.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC32MX320F032H-40I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC32MX320F064H-40I/PT | PIC32MX320F032HT-40I/PT | PIC32MX340F128H-40I/PT | PIC32MX320F032H-40V/PT |
|---|---|---|---|---|---|
| Package | TQFP-64 (10x10 mm) | TQFP-64 - same | TQFP-64 - same | TQFP-64 - same | TQFP-64 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 64 KB | 32 KB | 128 KB | 32 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 32 KB | 8 KB |
| CPU Speed | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +105C |
| USB | USB 2.0 OTG FS | USB 2.0 OTG FS | USB 2.0 OTG FS | USB 2.0 OTG FS | USB 2.0 OTG FS |
| ADC | 10-bit 1 Msps | 10-bit 1 Msps | 10-bit 1 Msps | 10-bit 1 Msps | 10-bit 1 Msps |
Principaux différenciateurs
- Same-family upgrade path with double Flash (vs PIC32MX320F064H-40I/PT)
- Four times the SRAM and Flash for richer applications (vs PIC32MX340F128H-40I/PT)
- Extended temperature range for harsh environments (vs PIC32MX320F032H-40V/PT)
Notes de conception
Place a 0.1 uF ceramic decoupling capacitor within 5 mm of every VDD/AVDD pin. Add a single 10 uF bulk capacitor on each power rail near the device. Keep analog (AVSS) and digital grounds connected at a single point under the IC to avoid ground loops in ADC readings. The Microchip PIC32MX3XX/4XX datasheet section 2.4 recommends a 4-layer PCB for best ADC performance but 2-layer boards with proper layout are acceptable for 8-10 effective bits.
Keep the trace length between the ICSP connector and the PGEC1/PGED1 pins (and optionally PGEC2/PGED2 for 4-wire) under 50 mm total per Microchip programming specification. Add 4.7 kohm pull-up resistors on D+ and D- if USB is used. The 48 MHz HSUSB mode requires a 4.7 uF low-ESR capacitor on the VCAP pin to stabilize the on-chip 2.5V regulator; do not omit this capacitor as the USB PLL will fail to lock.
Do not exceed 3.6 V on any VDD or AVDD pin even though digital I/O are 5V-tolerant; only I/O pins tolerate 5V inputs. Always run the configuration bits pragma to set the appropriate oscillator, watchdog, and code-protection settings; failure to do so may leave the device in an unprogrammed state. The 32 KB Flash includes the configuration word and boot Flash regions, leaving approximately 30-31 KB for user code per the Microchip linker scripts. Do not forget to enable the JTAG/debug port via configuration bits when using MPLAB X debugger.
Use the internal 8 MHz FRC oscillator with PLL to reach 40 MHz without an external crystal, saving two GPIOs and BOM cost. If USB is used, the 48 MHz USB clock must be derived from a primary oscillator or the 8 MHz FRC with PLL. The device supports sleep, idle, and deep-sleep modes with wake-up from internal RTCC. Estimated: at 40 MHz active, the core draws ~30 mA; deep-sleep drops to ~30 uA per the Microchip PIC32MX3XX/4XX datasheet DC characteristics section.
Informations de conformité
RoHS compliant per Microchip product page. Industrial temperature grade -40C to +85C. AEC-Q100 automotive qualification not available for this part - consider PIC32MX320F064H-40I/PT automotive variants if needed.
