PIC32MX350F128LT-I/PF - 80MHz 32-bit MCU 128KB Flash TQFP-100
MPN: PIC32MX350F128LT-I/PF ✓ פעילPIC32MX350F128LT-I/PF סקירה
A microcontroller (MCU) is an integrated circuit that contains a processor core, program memory, data memory, and configurable peripherals on a single die. Microcontrollers form the control backbone of embedded systems, ranging from consumer appliances to industrial automation. Within the broader taxonomy, the PIC32MX350 sits in the 32-bit MCU category, above 8-bit and 16-bit microcontrollers in raw performance (measured in DMIPS), and below microprocessor units (MPUs) that require external memory.
Key features include 100 MHz/131 DMIPS core performance, Peripheral Pin Select (PPS) for flexible pin assignment, an on-chip Charge Time Measurement Unit (CTMU), an RTCC with calendar mode, and hardware crypto acceleration on select variants. The I2S/SSP interfaces enable direct connection to audio codecs for multimedia applications. The 2.3V to 3.6V operating range makes the device suitable for battery-powered designs.
The PIC32 architecture implements a five-stage pipeline with Harvard-style separate Flash and SRAM buses, supporting single-cycle Flash access with prefetch. This results in deterministic interrupt latency suitable for hard-real-time control loops. The integrated DMA engine offloads data movement from the core, enabling peripherals such as the PMP (for graphics interfaces) and ADC to operate without CPU intervention.
Typical applications include industrial motor control, USB peripherals, graphical user interfaces (PMP-driven LCDs), audio playback devices, IoT edge nodes, and automotive body modules. The wide peripheral mix makes the PIC32MX350 particularly attractive when a single chip must serve as USB host/device, run a graphical HMI, and communicate with sensors via I2C/SPI/UART.
Designers should plan oscillator and decoupling layout to meet the 80 MHz timing budget; PPS remapping must be configured early in initialization since PPS lock bits are one-way programmable. Power sequencing considerations apply when interfacing with 5V logic - use level shifters since I/O are not 5V tolerant on most pins.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
חלופות תחליף ישיר עבור PIC32MX350F128LT-I/PF — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC32MX350F128LT-I/PF (אותו גורם צורה וטביעת רגל) — שונים ב Package, ADC, MSL Level, Timers, SPI / I2S.
PIC32MX370F512LT-I/PF
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC32MX450F256LT-I/PF
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
PIC32MX330F128LT-I/PF
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
PIC32MX350F128L-I/PF
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC32MX350F128LT-80V/PF
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
PIC32MX350F128LT-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC32MX350F128LT-I/PF דירוגים מרביים ומאפיינים חשמליים
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Frequency | 100 MHz (this part operates at 80 MHz) |
| DMIPS Rating | 131 DMIPS at 100 MHz |
| Program Memory (Flash) | 128 KB (plus 12 KB auxiliary) |
| Data Memory (SRAM) | 32 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| טווח טמפרטורת פעולה | -40 C to +105 C (industrial grade) |
| I/O Pins | 83 (on 100-pin TQFP) |
| ADC | 10-bit, up to 28 channels |
| Analog Comparators | 2 |
| SPI/I2S Modules | 2 |
| I2C Modules | 2 |
| UART Modules | 6 |
| Parallel Master Port (PMP) | Yes |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| מארז | 100-pin TQFP (PF), 14x14 mm |
| Peripheral Pin Select (PPS) | Yes |
| Charge Time Measurement Unit (CTMU) | Yes |
| סוג הרכבה | Surface Mount |
| סטטוס RoHS | Compliant |
תצורת פינים של PIC32MX350F128LT-I/PF
| פין 1 | RP10/RD10 — Remappable peripheral I/O / I/O port D10 |
| פין 2 | RP11/RD11 — Remappable peripheral I/O / I/O port D11 |
| פין 3 | VSS — Ground reference |
| פין 4 | VDD — Digital supply (2.3-3.6V) |
| פין 5 | RP12/RD12 — Remappable peripheral I/O / I/O port D12 |
| פין 6 | RP13/RD13 — Remappable peripheral I/O / I/O port D13 |
| פין 7 | RP14/RD14 — Remappable peripheral I/O / I/O port D14 |
| פין 8 | RP15/RD15 — Remappable peripheral I/O / I/O port D15 |
| פין 9 | RF0 — I/O port F0 |
| פין 10 | RF1 — I/O port F1 |
| פין 11 | PGED2/RP20/RD0 — ICSP data line / remappable peripheral I/O / I/O port D0 |
| פין 12 | PGEC2/RP21/RD1 — ICSP clock line / remappable peripheral I/O / I/O port D1 |
| פין 13 | RP22/RD2 — Remappable peripheral I/O / I/O port D2 |
| פין 14 | RP23/RD3 — Remappable peripheral I/O / I/O port D3 |
| פין 15 | RP24/RD4 — Remappable peripheral I/O / I/O port D4 |
| פין 16 | RP25/RD5 — Remappable peripheral I/O / I/O port D5 |
| פין 17 | VSS — Ground reference |
| פין 18 | VDD — Digital supply (2.3-3.6V) |
| פין 19 | RP26/RD6 — Remappable peripheral I/O / I/O port D6 |
| פין 20 | RP27/RD7 — Remappable peripheral I/O / I/O port D7 |
| פין 21 | RC1 — I/O port C1 |
| פין 22 | RC2 — I/O port C2 |
| פין 23 | RC3 — I/O port C3 |
| פין 24 | RC4 — I/O port C4 |
| פין 25 | VSS — Ground reference |
| פין 26 | VDD — Digital supply (2.3-3.6V) |
| פין 27 | PGED1/RP0/RB0 — ICSP data line / remappable peripheral I/O / I/O port B0 |
| פין 28 | PGEC1/RP1/RB1 — ICSP clock line / remappable peripheral I/O / I/O port B1 |
| פין 29 | RP2/RB2 — Remappable peripheral I/O / I/O port B2 |
| פין 30 | RP3/RB3 — Remappable peripheral I/O / I/O port B3 |
| פין 31 | RP4/RB4 — Remappable peripheral I/O / I/O port B4 |
| פין 32 | RP5/RB5 — Remappable peripheral I/O / I/O port B5 |
| פין 33 | VSS — Ground reference |
| פין 34 | VDD — Digital supply (2.3-3.6V) |
| פין 35 | RP6/RB6 — Remappable peripheral I/O / I/O port B6 |
| פין 36 | RP7/RB7 — Remappable peripheral I/O / I/O port B7 |
| פין 37 | RP8/RB8 — Remappable peripheral I/O / I/O port B8 |
| פין 38 | RP9/RB9 — Remappable peripheral I/O / I/O port B9 |
| פין 39 | VSS — Ground reference |
| פין 40 | OSC1/CLKI/RC12 — Crystal oscillator input / external clock input / I/O port C12 |
| פין 41 | OSC2/CLKO/RC15 — Crystal oscillator output / clock output / I/O port C15 |
| פין 42 | VSS — Ground reference |
| פין 43 | VDD — Digital supply (2.3-3.6V) |
| פין 44 | SOSCI/RP13/C13 — Secondary oscillator input / remappable peripheral I/O / I/O port C13 |
| פין 45 | SOSCO/T1CK/C14 — Secondary oscillator output / Timer1 clock / I/O port C14 |
| פין 46 | RA0 — I/O port A0 |
| פין 47 | RA1 — I/O port A1 |
| פין 48 | RA2 — I/O port A2 |
| פין 49 | RA3 — I/O port A3 |
| פין 50 | RA4 — I/O port A4 |
| פין 51 | RA5 — I/O port A5 |
| פין 52 | VSS — Ground reference |
| פין 53 | VDD — Digital supply (2.3-3.6V) |
| פין 54 | RB10 — I/O port B10 |
| פין 55 | RB11 — I/O port B11 |
| פין 56 | RB12 — I/O port B12 |
| פין 57 | RB13 — I/O port B13 |
| פין 58 | RB14 — I/O port B14 |
| פין 59 | RB15 — I/O port B15 |
| פין 60 | VSS — Ground reference |
| פין 61 | VDD — Digital supply (2.3-3.6V) |
| פין 62 | RC0 — I/O port C0 |
| פין 63 | RC5 — I/O port C5 |
| פין 64 | RC6 — I/O port C6 |
| פין 65 | RC7 — I/O port C7 |
| פין 66 | RC8 — I/O port C8 |
| פין 67 | RC9 — I/O port C9 |
| פין 68 | VSS — Ground reference |
| פין 69 | VDD — Digital supply (2.3-3.6V) |
| פין 70 | RC10 — I/O port C10 |
| פין 71 | RC11 — I/O port C11 |
| פין 72 | RB0/AN0 — I/O port B0 / analog input 0 |
| פין 73 | RB1/AN1 — I/O port B1 / analog input 1 |
| פין 74 | RB2/AN2 — I/O port B2 / analog input 2 |
| פין 75 | RB3/AN3 — I/O port B3 / analog input 3 |
| פין 76 | RB4/AN4 — I/O port B4 / analog input 4 |
| פין 77 | RB5/AN5 — I/O port B5 / analog input 5 |
| פין 78 | VSS — Ground reference |
| פין 79 | VDD — Digital supply (2.3-3.6V) |
| פין 80 | RB6/AN6 — I/O port B6 / analog input 6 |
| פין 81 | RB7/AN7 — I/O port B7 / analog input 7 |
| פין 82 | RB8/AN8 — I/O port B8 / analog input 8 |
| פין 83 | RB9/AN9 — I/O port B9 / analog input 9 |
| פין 84 | RB10/AN10 — I/O port B10 / analog input 10 |
| פין 85 | RB11/AN11 — I/O port B11 / analog input 11 |
| פין 86 | VSS — Ground reference |
| פין 87 | VDD — Digital supply (2.3-3.6V) |
| פין 88 | RD8 — I/O port D8 |
| פין 89 | RD9 — I/O port D9 |
| פין 90 | RB12/AN12 — I/O port B12 / analog input 12 |
| פין 91 | RB13/AN13 — I/O port B13 / analog input 13 |
| פין 92 | RB14/AN14 — I/O port B14 / analog input 14 |
| פין 93 | RB15/AN15 — I/O port B15 / analog input 15 |
| פין 94 | VSS — Ground reference |
| פין 95 | AVDD — Analog supply (2.3-3.6V) |
| פין 96 | AVSS — Analog ground reference |
| פין 97 | VREF+/CVREF+/AN16 — Voltage reference positive input / comparator voltage reference / analog input 16 |
| פין 98 | VREF-/CVREF-/AN17 — Voltage reference negative input / comparator voltage reference / analog input 17 |
| פין 99 | MCLR — Master clear (reset) input - pull-up enabled in software |
| פין 100 | VSS — Ground reference |
יישומים טיפוסיים
PIC32MX350F128LT-I/PF מתאים עבור 6 יישוםs: Industrial Motor Control and Drive, USB Peripherals and HID Devices, Graphical HMI with PMP-Driven LCDs, Audio Playback Devices with I2S Codecs, IoT Edge Nodes and Sensor Hubs, Automotive Body and Comfort Modules.
Industrial Motor Control and Drive
The PIC32MX350F128LT-I/PF is well suited for industrial motor control applications where its 80 MHz MIPS32 M4K core delivers deterministic 100 MHz-class DMIPS performance for FOC and PID loops. The integrated 10-bit ADC with up to 28 channels samples phase currents and bus voltage with hardware-triggered conversion synchronized to PWM, while 6 UART channels link to sensor and gateway subsystems. Hardware CTMU enables capacitive touch sensing for HMI panels on industrial machinery. The 2.3-3.6V operating range and -40 to +105 C industrial temperature rating ensure reliable operation on factory floors.
מומלץ
USB Peripherals and HID Devices
The PIC32MX350F128LT-I/PF integrates a USB 2.0 Full-Speed controller with on-chip transceiver and OTG support, eliminating the need for an external PHY. With 80 MHz CPU performance and 32 KB RAM, the part runs the Microchip USB stack (HID, CDC, MSD, audio) alongside application firmware. USB endpoints and DMA offload data movement from the core, sustaining 12 Mbps throughput while leaving CPU bandwidth for protocol handling. OTG mode enables dual-role device/host designs such as USB keyboards, custom test instruments, and field-updatable industrial terminals.
מומלץ
Graphical HMI with PMP-Driven LCDs
The PIC32MX350F128LT-I/PF includes a Parallel Master Port (PMP) capable of driving 8-bit or 16-bit parallel LCDs, making it a strong choice for graphical HMI panels in appliances, point-of-sale terminals, and instrument front panels. The 80 MHz core and DMA controller refresh the display without CPU overhead, while the Peripheral Pin Select (PPS) reassigns digital functions to alternate pins to avoid PMP pin conflicts. With 128 KB Flash, the device accommodates full-framebuffer or compressed graphics libraries (TinyGL, Microchip gfx) for typical 320x240 or 480x272 panels.
מומלץ
Audio Playback Devices with I2S Codecs
The PIC32MX350F128LT-I/PF features two SPI/I2S modules that interface directly with audio codecs (e.g., Wolfson/Cirrus devices) for digital audio playback and recording. At 80 MHz, the MCU executes audio processing algorithms (graphic EQ, dynamic range compression, mixing) with low CPU overhead. The DMA engine streams samples between codec and memory without CPU intervention, freeing bandwidth for UI logic. With 32 KB RAM the device handles typical 48 kHz / 16-bit stereo playback buffers comfortably, making it suitable for Bluetooth speakers, intercoms, and standalone audio alert modules.
מומלץ
IoT Edge Nodes and Sensor Hubs
The PIC32MX350F128LT-I/PF operates across 2.3-3.6V with low-power sleep modes, making it suitable for battery-powered IoT edge devices and sensor hubs. Six UART and two I2C channels aggregate multiple sensor inputs (temperature, humidity, motion) to a wireless co-processor via UART or SPI. The CTMU and 28-channel ADC interface directly with capacitive touch buttons and analog sensors without external components. Peripheral Pin Select allows pin re-routing to optimize PCB layout for compact wearable and smart-home device form factors.
מומלץ
Automotive Body and Comfort Modules
The PIC32MX350F128LT-I/PF (industrial grade variant) suits non-safety automotive body electronics such as HVAC controls, seat controllers, and lighting modules that require rich peripheral integration but not AEC-Q100 qualification. CAN peripheral networking, 6 UART channels, and the CTMU drive capacitive touch interfaces for steering-wheel switches and door panels. With 128 KB Flash and 32 KB RAM, the device hosts comfort control algorithms, lighting fade sequences, and LIN/CAN gateway logic simultaneously. For AEC-Q100 designs, Microchip offers automotive-grade PIC32MX variants in the same family.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC32MX350F128LT-I/PF — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC32MX370F512LT-I/PF | PIC32MX450F256LT-I/PF | PIC32MX330F128LT-I/PF |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin TQFP (PF) 14x14 mm | 100-pin TQFP (PF) 14x14 mm - same | 100-pin TQFP (PF) 14x14 mm - same | 100-pin TQFP (PF) 14x14 mm - same |
| Core Architecture | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit - same | MIPS32 M4K 32-bit - same | MIPS32 M4K 32-bit - same |
| Maximum CPU Frequency | 80 MHz | 80 MHz - same | 80 MHz - same | 80 MHz - same |
| Flash Memory | 128 KB | 512 KB (+300%) | 256 KB (+100%) | 128 KB - same |
| SRAM | 32 KB | 128 KB (+300%) | 64 KB (+100%) | 32 KB - same |
| USB Module | Yes (Device/Host/OTG) | Yes - same | Yes - same | No |
| Hardware Crypto Engine | No | No | Yes | No |
| Operating Voltage | 2.3 V to 3.6 V | 2.3 V to 3.6 V - same | 2.3 V to 3.6 V - same | 2.3 V to 3.6 V - same |
מבדילים עיקריים
- USB 2.0 OTG with integrated PHY (לעומתPIC32MX330F128LT-I/PF)
- 3x memory capacity over PIC32MX330 (לעומתPIC32MX330F128LT-I/PF)
- Industrial temperature range -40 to +105 C (לעומתCommercial PIC32MX (no I-suffix))
הערות תכנון
Place 0.1uF ceramic decoupling capacitors as close as possible to each VDD pin (12 pins total on TQFP-100). Add a single 10uF bulk capacitor near the package. Separate analog supply (AVDD/AVSS) and digital supply pins - both are required even if the MCU does not use ADC. Use ferrite bead isolation if AVDD is sourced from a noisy digital rail to preserve ADC accuracy.
TQFP-100 has 0.5mm pitch pins requiring careful PCB layout. Use at least 4-layer board with dedicated ground plane to control trace impedance and minimize EMI. Route the 8 MHz or 10 MHz primary crystal traces symmetrically within 1 cm of OSC1/OSC2 and shield with a ground guard ring. MCLR pin requires external 10k pull-up to VDD; do not leave floating.
Peripheral Pin Select (PPS) lock bits are one-way programmable - if your firmware accidentally locks an unintended mapping, the device must be reset and the configuration erased via ICSP. Always validate PPS assignments during development before deploying. Additionally, the I2C module uses open-drain outputs requiring external pull-up resistors (typically 4.7k) on SCL/SDA lines.
USB D+/D- lines require 90-ohm differential routing and matched length to within 150 mil for USB Full-Speed compliance. Place the 15k pull-down resistor on D- at the device side. Keep USB traces away from high-frequency switching nodes. The integrated USB PHY requires precise 48 MHz clock; use a crystal with low ppm tolerance (50 ppm max) to avoid USB certification failures.
מידע על תאימות
RoHS and REACH compliant per Microchip product page. Industrial temperature grade (-40 to +105 C) is suitable for non-safety automotive body modules; AEC-Q100 qualified variants are not listed for this part number. The 'I-suffix' denotes industrial grade; AEC-Q100 grades require separate ordering suffix.