PIC32MX420F032H-40I/MR - 32-bit MCU 32KB Flash USB-OTG 64-VQFN
MPN: PIC32MX420F032H-40I/MR ✓ AktifPIC32MX420F032H-40I/MR Ringkasan
What is a PIC32MX microcontroller? The PIC32MX family combines 32-bit MIPS M4K performance with PIC ecosystem familiarity and integrated peripherals like USB, CAN, and Ethernet. PIC32MX devices target embedded applications ranging from simple general-purpose control to advanced audio and connectivity, occupying the mid-performance tier between 8/16-bit MCUs and Cortex-M class devices.
Key differentiating features include 32KB Flash (32K x 8) for application code, 8KB SRAM for data, hardware multiply/divide and MIPS16e compressed-code mode (up to 40% smaller code), 53 I/O pins, and a 5-stage pipelined Harvard core. Industrial -40C to +85C operating temperature and 2.5V-3.6V supply support battery-tolerant designs, while the dedicated USB DMA channel offloads the CPU during USB transfers.
The MIPS32 M4K core with 5-stage pipeline and hardware divide completes one multiply per cycle and executes up to 66 DMIPS at 40 MHz, providing ample headroom for USB stacks and DSP-style algorithms. The USB 2.0 On-The-Go peripheral integrates the PHY, eliminating external USB transceivers and simplifying PCB layout for embedded hosts and devices.
Typical applications include USB peripherals (HID, CDC, MSD), industrial control nodes, audio interface controllers, sensor aggregation hubs, and connectivity gateways. The wide peripheral set (I2C, SPI, UART, PMP, 10-bit ADC) covers most general-purpose embedded designs without external components.
Design tip: Use MPLAB X IDE with XC32 compiler and MPLAB Harmony code configurator. Place a 0.1uF decoupling cap on every VDD/VSS pair, keep traces to the USB DP/DM pins short and length-matched, and connect the exposed pad (EP) to a continuous ground plane for thermal and electrical performance.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternatif penggantian untuk PIC32MX420F032H-40I/MR — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian PIC32MX420F032H-40I/MR (sama faktor bentuk dan footprint) — berbeda di dalam ADC, Package, Operating Temperature, USB, DMA Channels.
PIC32MX320F032HT-40I/MR
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC32MX440F032H-40I/MR
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
PIC32MX460F032H-40I/MR
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
PIC32MX320F064HT-40I/MR
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →PIC32MX420F032HT-40I/MR
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC32MX340F128HT-80V/MR
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC32MX420F032H-40I/MR Rating Maksimal & Karakteristik Listrik
| Core Architecture | MIPS32 M4K, 5-stage pipeline, Harvard |
| CPU Core | PIC32MX (32-bit MIPS M4K) |
| Frekuensi Bawah Maximum | 40 MHz (66 DMIPS) |
| Program Memory (Flash) | 32 KB (32K x 8) |
| Data Memory (SRAM) | 8 KB |
| USB Interface | USB 2.0 On-The-Go with integrated PHY |
| Supply Voltage (VDD) | 2.5 V to 3.6 V |
| I/O Pins | 53 |
| ADC | 10-bit, up to 16 channels (1 Msps) |
| DMA Channels | Dedicated DMA channel for USB OTG + general-purpose DMA |
| Rentang Suhu Kerja | -40C to +85C (Industrial) |
| Paket | 64-pin VQFN (9x9 mm) with exposed pad |
| Tipe Mounting | Surface Mount |
| Code-Compression Support | MIPS16e mode (up to 40% smaller code size) |
| Multiply / Divide | Hardware single-cycle 32x32-bit multiply and divide |
| Status RoHS | Compliant (LEAD FREE) |
Konfigurasi Pin PIC32MX420F032H-40I/MR
| Pin produk 1 | RP15/RF5 — Remappable peripheral pin / RF5 (varies by family revision) |
| Pin produk 2 | VDD — Positive supply voltage (2.5V-3.6V) |
| Pin produk 3 | RG15 — General purpose I/O port G bit 15 |
| Pin produk 4 | RG12 — General purpose I/O port G bit 12 |
| Pin produk 5 | VSS — Ground reference |
| Pin produk 6 | RG13 — General purpose I/O port G bit 13 |
| Pin produk 7 | RG14 — General purpose I/O port G bit 14 |
| Pin produk 8 | RC1 — General purpose I/O port C bit 1 |
| Pin produk 9 | RC2 — General purpose I/O port C bit 2 |
| Pin produk 10 | RC3 — General purpose I/O port C bit 3 |
| Pin produk 11 | RC4 — General purpose I/O port C bit 4 |
| Pin produk 12 | VSS — Ground reference |
| Pin produk 13 | VDD — Positive supply voltage (2.5V-3.6V) |
| Pin produk 14 | RA0 — General purpose I/O port A bit 0 |
| Pin produk 15 | RA1 — General purpose I/O port A bit 1 |
| Pin produk 16 | RA2 — General purpose I/O port A bit 2 |
| Pin produk 17 | RA3 — General purpose I/O port A bit 3 |
| Pin produk 18 | RA4 — General purpose I/O port A bit 4 |
| Pin produk 19 | RA5 — General purpose I/O port A bit 5 |
| Pin produk 20 | RA6 — General purpose I/O port A bit 6 |
| Pin produk 21 | RC13 — General purpose I/O port C bit 13 |
| Pin produk 22 | RC14 — General purpose I/O port C bit 14 |
| Pin produk 23 | RD0 — General purpose I/O port D bit 0 |
| Pin produk 24 | RD1 — General purpose I/O port D bit 1 |
| Pin produk 25 | RD2 — General purpose I/O port D bit 2 |
| Pin produk 26 | RD3 — General purpose I/O port D bit 3 |
| Pin produk 27 | RD4 — General purpose I/O port D bit 4 |
| Pin produk 28 | RD5 — General purpose I/O port D bit 5 |
| Pin produk 29 | RD6 — General purpose I/O port D bit 6 |
| Pin produk 30 | RD7 — General purpose I/O port D bit 7 |
| Pin produk 31 | VSS — Ground reference |
| Pin produk 32 | VDD — Positive supply voltage (2.5V-3.6V) |
| Pin produk 33 | RF0 — General purpose I/O port F bit 0 |
| Pin produk 34 | RF1 — General purpose I/O port F bit 1 |
| Pin produk 35 | RF2 — General purpose I/O port F bit 2 |
| Pin produk 36 | RF3 — General purpose I/O port F bit 3 |
| Pin produk 37 | RF4 — General purpose I/O port F bit 4 |
| Pin produk 38 | RF5 — General purpose I/O port F bit 5 |
| Pin produk 39 | RF6 — General purpose I/O port F bit 6 |
| Pin produk 40 | RF7 — General purpose I/O port F bit 7 |
| Pin produk 41 | RG6 — General purpose I/O port G bit 6 |
| Pin produk 42 | RG7 — General purpose I/O port G bit 7 |
| Pin produk 43 | RG8 — General purpose I/O port G bit 8 |
| Pin produk 44 | RG9 — General purpose I/O port G bit 9 |
| Pin produk 45 | VSS — Ground reference |
| Pin produk 46 | VDD — Positive supply voltage (2.5V-3.6V) |
| Pin produk 47 | RB0 — General purpose I/O port B bit 0 / PGED1 (programming data) |
| Pin produk 48 | RB1 — General purpose I/O port B bit 1 / PGEC1 (programming clock) |
| Pin produk 49 | RB2 — General purpose I/O port B bit 2 |
| Pin produk 50 | RB3 — General purpose I/O port B bit 3 |
| Pin produk 51 | RB4 — General purpose I/O port B bit 4 |
| Pin produk 52 | RB5 — General purpose I/O port B bit 5 |
| Pin produk 53 | RB6 — General purpose I/O port B bit 6 |
| Pin produk 54 | RB7 — General purpose I/O port B bit 7 |
| Pin produk 55 | RB8 — General purpose I/O port B bit 8 |
| Pin produk 56 | RB9 — General purpose I/O port B bit 9 |
| Pin produk 57 | RB10 — General purpose I/O port B bit 10 |
| Pin produk 58 | RB11 — General purpose I/O port B bit 11 |
| Pin produk 59 | RB12 — General purpose I/O port B bit 12 |
| Pin produk 60 | RB13 — General purpose I/O port B bit 13 |
| Pin produk 61 | RB14 — General purpose I/O port B bit 14 |
| Pin produk 62 | RB15 — General purpose I/O port B bit 15 |
| Pin produk 63 | D+ — USB D+ data line (differential pair with D-) |
| Pin produk 64 | D- — USB D- data line (differential pair with D+) |
Aplikasi Umum
PIC32MX420F032H-40I/MR cocok untuk 6 aplikasis: USB HID Peripheral Device, USB-to-UART Bridge, Industrial Sensor Hub, USB Mass Storage Reader, Audio Interface Controller, Connectivity Gateway / Edge Node.
USB HID Peripheral Device
The PIC32MX420F032H-40I/MR is well suited for USB Human Interface Device (HID) applications such as custom keypads, game controllers, and sensor input devices. Its integrated USB 2.0 On-The-Go controller with on-chip PHY eliminates external transceivers, while the dedicated DMA channel sustains full-speed 12 Mbps polling without CPU overhead. The 32 KB Flash accommodates Microchip's MPLAB Harmony USB stack plus HID class driver and application code, and 8 KB SRAM provides buffer headroom for HID reports and descriptors. The 40 MHz MIPS M4K core delivers 66 DMIPS, enough to debounce keys, run a small USB protocol stack, and process HID reports simultaneously. Pin count (53 GPIO) supports matrix-scanned keypads or multi-axis analog input. The 64-VQFN package allows compact PCB designs typical of USB dongles and embedded peripherals.
Direkomendasikan
USB-to-UART Bridge
For USB-to-UART bridge designs (CDC class), the PIC32MX420F032H-40I/MR provides a single-chip solution: USB on one side, UART on the other, with full-speed 12 Mbps throughput. The integrated USB OTG PHY and DMA simplify the bus interface, while its three UART modules plus I2C/SPI allow expansion into USB-to-RS485 or USB-to-I2C bridges. Operating from 2.5-3.6V is compatible with 3.3V logic and many 5V-tolerant UART targets via external level shifters. The 32 KB Flash holds the CDC class driver, command interpreter, and a small bootloader for field-upgradeable firmware. Industrial -40C to +85C operation supports factory floor installations. The 64-VQFN (9x9 mm) package fits into compact cable dongles and panel-mount modules.
Direkomendasikan
Industrial Sensor Hub
The PIC32MX420F032H-40I/MR's combination of 10-bit ADC (up to 16 channels), UART, I2C, SPI, and USB makes it ideal for industrial sensor aggregation hubs that sample analog sensors and expose data over USB or serial. With 32 KB Flash and 8 KB SRAM, it can buffer hundreds of samples, run a small RTOS or polled loop, and serve data via USB CDC or vendor class. The 40 MHz core completes single-cycle 32-bit multiplies, suitable for digital filtering and unit conversion of sensor data. Industrial -40C to +85C operation covers factory floor environments. The 53 GPIO support multiple sensor interfaces (SPI/I2C sensors, analog inputs, digital status LEDs). The 64-VQFN package with exposed pad enables effective thermal dissipation in enclosed industrial enclosures.
Direkomendasikan
USB Mass Storage Reader
For embedded USB mass storage readers (e.g., USB card readers, USB-to-SD adapters), the PIC32MX420F032H-40I/MR provides USB host capability via its OTG controller plus SPI/parallel interface for SD cards and external flash. The dedicated DMA channel sustains USB bulk transfers while the CPU handles file system operations (FAT16/32 via Microchip's MDD library). At 40 MHz, performance is adequate for sequential read/write at full-speed USB rates. The 32 KB Flash holds USB host stack plus FAT library; 8 KB SRAM serves as transfer buffer. Multiple UART/SPI/I2C channels enable status LEDs, debug output, and external sensor interfaces. The industrial -40C to +85C temperature range supports outdoor or industrial enclosures.
Direkomendasikan
Audio Interface Controller
The PIC32MX420F032H-40I/MR can serve as a USB audio class controller for USB-to-I2S bridges, USB headphone adapters, and USB microphone interfaces. Its I2S peripheral (via SPI with PCM mode) supports standard audio sample rates; the 10-bit ADC handles analog monitoring. USB isochronous transfers are handled by the OTG peripheral with DMA. The 32 KB Flash accommodates the USB audio class driver and small audio processing routines; 8 KB SRAM buffers USB audio packets. The 53 GPIO allow front-panel button/LED integration. Industrial temperature range supports professional audio equipment. The 64-VQFN footprint enables small form-factor USB audio dongles and embedded audio interfaces.
Direkomendasikan
Connectivity Gateway / Edge Node
The PIC32MX420F032H-40I/MR can act as an edge gateway aggregating sensor data (UART, I2C, SPI, ADC) and forwarding it over USB to a host processor, PLC, or cloud gateway. Its USB device capability supports vendor-class bulk transfers at full speed, while UART and I2C connect to downstream sensors or modems. The 40 MHz MIPS M4K core can run a small TCP/IP offload stack (via PPP over UART) or a lightweight MQTT client. Industrial temperature and 2.5-3.6V operation suit battery-tolerant installations. With 32 KB Flash, it accommodates MQTT-SN or CoAP plus a sensor protocol stack. The 64-VQFN exposed pad provides thermal headroom in enclosed gateways.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk PIC32MX420F032H-40I/MR — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | PIC32MX320F032HT-40I/MR | PIC32MX440F032H-40I/MR | PIC32MX460F032H-40I/MR | PIC32MX320F064HT-40I/MR | PIC32MX340F128HT-80V/MR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-VQFN (9x9 mm, MR) | 64-VQFN (9x9 mm, MR) - same | 64-VQFN (9x9 mm, MR) - same | 64-VQFN (9x9 mm, MR) - same | 64-VQFN (9x9 mm, MR) - same | 64-VQFN (9x9 mm, MR) - same |
| Core / Max Clock | MIPS M4K / 40 MHz | MIPS M4K / 40 MHz | MIPS M4K / 40 MHz | MIPS M4K / 40 MHz | MIPS M4K / 40 MHz | MIPS M4K / 80 MHz (+100%) |
| Flash | 32 KB | 32 KB | 32 KB | 32 KB | 64 KB (+100%) | 128 KB (+300%) |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 16 KB (+100%) | 32 KB (+300%) |
| USB OTG with PHY | Yes | No | Yes | Yes | No | No |
| Ethernet MAC | No | No | Yes (10/100) | Yes (10/100) | No | No |
| CAN | No | No | No | Yes | No | No |
Diferensiator Kunci
- Integrated USB 2.0 On-The-Go with on-chip PHY and dedicated DMA (vsPIC32MX320F032HT-40I/MR)
- Single-chip USB + Ethernet solution in the same footprint (vsPIC32MX440F032H-40I/MR)
- Higher Flash and SRAM density in the same 64-VQFN package (vsPIC32MX340F128HT-80V/MR)
Catatan Desain
Decouple every VDD/VSS pair with a 0.1uF X7R ceramic capacitor placed as close to the IC pins as possible. Add a single 10uF bulk capacitor near the supply pin. The PIC32MX420F032H-40I/MR operates from a single 2.5-3.6V rail; for USB applications, use a 3.3V low-noise LDO (e.g. AP2112K-3.3) to meet USB bus-powered noise requirements. Place ferrite beads on the analog supply if sensitive ADC measurements are required.
The exposed thermal pad (EP) on the bottom of the 64-VQFN package MUST be soldered to a continuous ground plane for both thermal dissipation and electrical performance. Use thermal vias (8-12 vias in a 3x3 grid) to connect the EP pad to inner ground layers. Keep the USB D+/D- traces short, length-matched, and routed over a continuous ground plane with 90 ohm differential impedance for USB full-speed compliance.
Do not skip configuring the peripheral pin select (PPS) registers: most PIC32MX digital peripherals (UART, SPI, I2C) require explicit PPS mapping before use. Ensure the CONFIG bits are set correctly in code for the oscillator mode, watchdog, and JTAG/ICSP disable state. For USB applications, configure the on-chip PHY via the U1CON and U1OTGCON registers before enabling the USB module. Failure to do so results in non-functional USB enumeration.
The 53 GPIO pins default to analog input on reset; configure them as digital I/O via the TRISx and ANSELx registers before use. The 10-bit ADC inputs require the ANSELx bit cleared for digital mode. For high-speed signals (SPI > 10 MHz), use the PPS to map peripherals to specific pins and add 22-33 ohm series termination to reduce reflections. The USB D+/D- pair should not have any series resistors (per USB spec); use the on-chip PHY matching network only.
Informasi Konformitas
RoHS compliant per Microchip product packaging marking 'LEAD FREE'. Industrial -40C to +85C temperature grade. Not AEC-Q100 qualified - for automotive applications consider PIC32MX variants with -V or automotive suffixes.
