PIC32MX450F128LT-V/PT - 80MHz 32-bit MCU 128KB Flash | Microchip
MPN: PIC32MX450F128LT-V/PT ✓ Hoạt độngPIC32MX450F128LT-V/PT Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (RAM), and peripherals such as timers, communication interfaces and ADCs. The PIC32MX450 belongs to the MIPS32 M4K core family, which in the broader taxonomy is classified as a RISC microcontroller -> 32-bit MCU -> embedded processor -> semiconductor. The "32-bit" designation refers to the data bus width and ALU width, allowing larger address spaces and higher throughput than 8-bit or 16-bit MCUs.
Key features of the PIC32MX450F128LT-V/PT include: 128KB Flash (128K x 8), 32KB RAM, two I2C interfaces, two SPI/I2S modules supporting audio codecs, two analog comparators, a 10-bit ADC with up to 28 channels, two UART modules, and a USB 2.0 Full-Speed On-The-Go controller. The device also provides a Parallel Master Port (PMP) for graphics interfaces, Peripheral Pin Select (PPS) for flexible pin assignment, and a Charge Time Measurement Unit (CTMU) for touch and capacitive sensing.
Architecturally, the PIC32MX450 uses the MIPS32 M4K Harvard core with a 5-stage pipeline, single-cycle multiply and hardware divide. The integrated USB 2.0 Full-Speed OTG controller with on-chip transceiver eliminates the need for an external PHY. PPS allows most digital peripherals to be remapped to a wide range of pins, simplifying PCB layout and BOM flexibility. The CTMU uses a constant-current source for accurate time measurement, enabling touch buttons, flow meters and precise timing applications.
Typical applications include industrial control panels, USB HID peripherals, audio processing with external CODECs, small graphical HMI displays using PMP, automotive body and infotainment subsystems (the "-V" suffix denotes the -40C to +105C automotive temperature grade), consumer electronics with USB connectivity, and medical low-power data acquisition.
When designing with this device, ensure the operating voltage stays within 2.3V to 3.6V and provide adequate decoupling (typically 100nF plus 10uF bulk) close to each power pin. The USB bus requires 90 ohm differential impedance routing and a 1uF VBUS capacitor. For PMP graphics applications, allocate sufficient PCB area for the data/control traces and verify timing against the display controller's setup/hold requirements.
This page synthesizes distributor pricing, drop-in alternative MPNs within the same 100-TQFP footprint, and practical design considerations not found on the manufacturer product page alone.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX450F128LT-V/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC32MX450F128LT-V/PT (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, ADC, Core Count, MSL Level.
PIC32MX450F128LT-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX470F512LT-V/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX450F128HT-V/MR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX450F128HT-I/RG
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC32MX370F512L-V/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX360F512L-80V/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX450F128LT-V/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K (RISC) |
| Core Count | 1 (single-core 32-bit) |
| Maximum CPU Speed | 80 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| Data Memory (RAM) | 32 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| ADC | 10-bit, up to 28 channels |
| Analog Comparators | 2 |
| UART | 2 |
| SPI / I2S Modules | 2 (SPI or I2S mode) |
| I2C | 2 |
| USB | USB 2.0 Full-Speed OTG with on-chip transceiver |
| Parallel Master Port (PMP) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| CTMU | Yes |
| Khoảng nhiệt độ hoạt động | -40C to +105C (automotive "V" grade) |
| Hộp | 100-pin TQFP (PT), 12x12 mm |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 3 (168 hours) |
Cấu hình chân PIC32MX450F128LT-V/PT
| Chân 1 | RG15 — General purpose I/O / PPS |
| Chân 2 | VDD — Supply voltage 2.3V-3.6V |
| Chân 3 | RA0 — General purpose I/O / analog |
| Chân 4 | RA1 — General purpose I/O / analog |
| Chân 5 | RA2 — General purpose I/O / analog |
| Chân 6 | RA3 — General purpose I/O / analog |
| Chân 7 | RA4 — General purpose I/O / analog |
| Chân 8 | RA5 — General purpose I/O / analog |
| Chân 9 | RA6 — General purpose I/O / analog |
| Chân 10 | RA7 — General purpose I/O / analog |
| Chân 11 | AVDD — Analog supply voltage |
| Chân 12 | AVSS — Analog ground |
| Chân 13 | RB0 — General purpose I/O / analog |
| Chân 14 | RB1 — General purpose I/O / analog |
| Chân 15 | RB2 — General purpose I/O / analog |
| Chân 16 | RB3 — General purpose I/O / analog |
| Chân 17 | RB4 — General purpose I/O / analog |
| Chân 18 | RB5 — General purpose I/O / analog |
| Chân 19 | RB6 — General purpose I/O / analog |
| Chân 20 | RB7 — General purpose I/O / analog |
| Chân 21 | RB8 — General purpose I/O / analog |
| Chân 22 | RB9 — General purpose I/O / analog |
| Chân 23 | RB10 — General purpose I/O / analog |
| Chân 24 | RB11 — General purpose I/O / analog |
| Chân 25 | RB12 — General purpose I/O / analog |
| Chân 26 | RB13 — General purpose I/O / analog |
| Chân 27 | RB14 — General purpose I/O / analog |
| Chân 28 | RB15 — General purpose I/O / analog |
| Chân 29 | VSS — Digital ground |
| Chân 30 | VDD — Supply voltage 2.3V-3.6V |
| Chân 31 | RC1 — General purpose I/O / PPS |
| Chân 32 | RC2 — General purpose I/O / PPS |
| Chân 33 | RC3 — General purpose I/O / PPS |
| Chân 34 | RC4 — General purpose I/O / PPS |
| Chân 35 | RC5 — General purpose I/O / PPS / SDA |
| Chân 36 | RC6 — General purpose I/O / PPS |
| Chân 37 | RC7 — General purpose I/O / PPS |
| Chân 38 | RC8 — General purpose I/O / PPS |
| Chân 39 | RC9 — General purpose I/O / PPS |
| Chân 40 | VDD — Supply voltage 2.3V-3.6V |
| Chân 41 | VSS — Digital ground |
| Chân 42 | RD0 — General purpose I/O / PMP |
| Chân 43 | RD1 — General purpose I/O / PMP |
| Chân 44 | RD2 — General purpose I/O / PMP |
| Chân 45 | RD3 — General purpose I/O / PMP |
| Chân 46 | RD4 — General purpose I/O / PMP |
| Chân 47 | RD5 — General purpose I/O / PMP |
| Chân 48 | RD6 — General purpose I/O / PMP |
| Chân 49 | RD7 — General purpose I/O / PMP |
| Chân 50 | RD8 — General purpose I/O / PMP |
| Chân 51 | RD9 — General purpose I/O / PMP |
| Chân 52 | RD10 — General purpose I/O / PMP |
| Chân 53 | RD11 — General purpose I/O / PMP |
| Chân 54 | RD12 — General purpose I/O / PMP |
| Chân 55 | RD13 — General purpose I/O / PMP |
| Chân 56 | RD14 — General purpose I/O / PMP |
| Chân 57 | RD15 — General purpose I/O / PMP |
| Chân 58 | VSS — Digital ground |
| Chân 59 | VDD — Supply voltage 2.3V-3.6V |
| Chân 60 | RE0 — General purpose I/O / PMP |
| Chân 61 | RE1 — General purpose I/O / PMP |
| Chân 62 | RE2 — General purpose I/O / PMP |
| Chân 63 | RE3 — General purpose I/O / PMP |
| Chân 64 | RE4 — General purpose I/O / PMP |
| Chân 65 | RE5 — General purpose I/O / PMP |
| Chân 66 | RE6 — General purpose I/O / PMP |
| Chân 67 | RE7 — General purpose I/O / PMP |
| Chân 68 | RC12 — General purpose I/O / PPS |
| Chân 69 | RC13 — General purpose I/O / PPS |
| Chân 70 | RC14 — General purpose I/O / PPS |
| Chân 71 | RC15 — General purpose I/O / PPS |
| Chân 72 | VBUS — USB VBUS sense input |
| Chân 73 | VUSB3V3 — USB internal 3.3V regulator output |
| Chân 74 | D- — USB D- differential data line |
| Chân 75 | D+ — USB D+ differential data line |
| Chân 76 | RF0 — General purpose I/O |
| Chân 77 | RF1 — General purpose I/O |
| Chân 78 | RF2 — General purpose I/O / SDA2 |
| Chân 79 | RF3 — General purpose I/O / SCL2 |
| Chân 80 | RF4 — General purpose I/O / USBID |
| Chân 81 | RF5 — General purpose I/O |
| Chân 82 | RF6 — General purpose I/O / SCL1 |
| Chân 83 | RF7 — General purpose I/O / SDA1 |
| Chân 84 | RF8 — General purpose I/O |
| Chân 85 | VSS — Digital ground |
| Chân 86 | VDD — Supply voltage 2.3V-3.6V |
| Chân 87 | RG0 — General purpose I/O |
| Chân 88 | RG1 — General purpose I/O |
| Chân 89 | RG2 — General purpose I/O |
| Chân 90 | RG3 — General purpose I/O |
| Chân 91 | RG6 — General purpose I/O / SCK2 |
| Chân 92 | RG7 — General purpose I/O / SDI2 |
| Chân 93 | RG8 — General purpose I/O / SDO2 |
| Chân 94 | RG9 — General purpose I/O / SS2 |
| Chân 95 | VDD — Supply voltage 2.3V-3.6V |
| Chân 96 | VSS — Digital ground |
| Chân 97 | OSC1 — Crystal/oscillator input |
| Chân 98 | OSC2 — Crystal/oscillator output |
| Chân 99 | MCLR — Master clear reset input (active-low) |
| Chân 100 | RG14 — General purpose I/O |
Ứng dụng tiêu biểu
PIC32MX450F128LT-V/PT phù hợp cho 6 Áp dụngs: Automotive Body Control Module, USB HID Peripheral / Dongle, Audio Processing with External CODEC, Industrial HMI Controller, Small Graphical Display / PMP Interface, Consumer Sensor Hub with USB.
Automotive Body Control Module
The PIC32MX450F128LT-V/PT suits automotive body ECUs because of its -40C to +105C operating range ("V" grade), 128KB Flash, and USB 2.0 Full-Speed OTG for diagnostics. Body controllers typically aggregate window lifters, mirror controls, lighting drivers and LIN/CAN gateways, where 80 MHz and 32KB RAM are enough for CAN/LIN stacks plus PWM and ADC scheduling. USB OTG enables service-tool connectivity without an external transceiver. PPS pin mapping keeps mixed-signal routing clean on a small PCB.
Được đề xuất
USB HID Peripheral / Dongle
The PIC32MX450F128LT-V/PT is an excellent USB HID controller thanks to its integrated USB 2.0 Full-Speed OTG with on-chip transceiver, eliminating the external PHY and BOM cost typical of HID dongles. At 80MHz the M4K core handles HID class drivers, capacitive touch via CTMU, and wireless protocol forwarding over SPI/I2S. 128KB Flash fits HID descriptors, custom firmware and bootloader; the 32KB RAM supports HID ring buffers plus application logic without external memory.
Được đề xuất
Audio Processing with External CODEC
The PIC32MX450F128LT-V/PT provides two I2S modules for stereo audio CODEC interfacing, suitable for entry-level audio products such as Bluetooth speakers, hearing-aid programmers and intercoms. DMA-fed I2S buffers offload sample-rate conversion and filtering from the CPU. The 10-bit ADC can be used for ambient sensing or VU-meter functions; USB OTG enables firmware updates or audio streaming from a host. CTMU drives front-panel capacitive buttons without an extra touch controller.
Được đề xuất
Industrial HMI Controller
The PIC32MX450F128LT-V/PT runs small HMIs with character or graphical LCDs via the Parallel Master Port (PMP), supporting TFT panels up to QVGA without an external graphics controller. Peripheral Pin Select lets the designer route SPI, I2C and UART to whichever pins the layout prefers, reducing PCB iterations. The USB OTG enables configuration uploads and firmware update via USB stick. -40C to +105C operation tolerates factory cabinet environments.
Được đề xuất
Small Graphical Display / PMP Interface
PMP graphics interfaces are well supported on the PIC32MX450F128LT-V/PT: the parallel master port can drive common 8080/6800 LCDs and TFT controllers directly from PORTD/PORTE, freeing the CPU for application logic. 128KB Flash stores fonts and small bitmaps; 32KB RAM serves as a frame buffer for 1.5-inch displays. Combined with USB OTG for content upload, the device replaces legacy 8/16-bit MCUs in low-cost graphical products like printer front panels and instrument cluster sub-displays.
Được đề xuất
Consumer Sensor Hub with USB
Consumer-grade sensor hubs combine I2C sensors (accelerometer, gyro, magnetometer, pressure) and stream processed data to a host via USB. The PIC32MX450F128LT-V/PT handles multiple I2C peripherals (two channels), adds USB 2.0 Full-Speed device connectivity without external PHY, and has CTMU for moisture/capacitive sensing. 128KB Flash is ample for sensor fusion and USB class drivers; the -V temperature grade supports outdoor and cabin applications such as sports wearables and bike computers.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX450F128LT-V/PT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC32MX450F128LT-I/PT | PIC32MX470F512LT-V/PT | PIC32MX370F512L-V/PT | PIC32MX360F512L-80V/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-TQFP (PT, 12x12 mm) | 100-TQFP (PT, 12x12 mm) - same | 100-TQFP (PT, 12x12 mm) - same | 100-TQFP (PT, 12x12 mm) - same | 100-TQFP (PT, 12x12 mm) - same |
| Core | MIPS32 M4K, 80 MHz | MIPS32 M4K, 80 MHz | MIPS32 M4K, 80 MHz | MIPS32 M4K, 80 MHz | MIPS32 M4K, 80 MHz |
| Flash | 128 KB | 128 KB (same) | 512 KB (+300%) | 512 KB (+300%) | 512 KB (+300%) |
| RAM | 32 KB | 32 KB (same) | 128 KB (+300%) | 128 KB (+300%) | 128 KB (+300%) |
| USB OTG | Yes (USB 2.0 Full-Speed) | Yes | Yes | No | No (older family) |
| Temperature Grade | -40C to +105C (Automotive V) | -40C to +85C (Industrial I) | -40C to +105C (Automotive V) | -40C to +105C (Automotive V) | -40C to +105C (Automotive V) |
| PMP / PPS / CTMU | Yes / Yes / Yes | Yes / Yes / Yes | Yes / Yes / Yes | Yes / Yes / Yes | Yes / Yes / Yes |
| ADC | 10-bit, up to 28 channels | 10-bit, up to 28 channels | 10-bit, up to 28 channels | 10-bit, up to 28 channels | 10-bit, up to 28 channels |
Bảo phân biệt quan trọng
- Integrated USB 2.0 Full-Speed OTG with on-chip transceiver (vsPIC32MX370F512L-V/PT)
- Automotive -40C to +105C temperature grade (vsPIC32MX450F128LT-I/PT)
- Larger Flash and RAM than PIC32MX330F064L family (vsPIC32MX330F064LT-V/PT)
Ghi chú thiết kế
The PIC32MX450F128LT-V/PT requires a regulated 2.3V to 3.6V supply on VDD pins; place 100nF ceramic decoupling capacitors as close as possible to each VDD/VSS pair plus a single 10uF bulk capacitor near the device. AVDD/AVSS (when used for ADC accuracy) must be tied to the same 3.3V rail through a ferrite bead and additional 100nF decoupling. USB VBUS can be used to power VUSB3V3 through the internal 3.3V LDO, but the datasheet recommends adding a 1uF bypass on VUSB3V3 if USB is enabled.
USB D+ and D- traces must be routed as a 90 ohm differential pair with length matching within 150 mil, and ESD protection (such as USBLC6-2SC6) should be placed within 5mm of the connector. The 100-pin TQFP has a 0.4mm pitch - follow IPC-7351 land pattern rules and use a 4-layer PCB with continuous ground plane under the device for best EMI/thermal performance. Keep the crystal traces short and surrounded by ground pour to avoid clock jitter.
Do not enable the JTAG pins (TMS/TCK/TDO/TDI on dedicated pins) as GPIO without understanding the impact on debug access - Microchip's programming tools require JTAG or ICSP access. The PPS (Peripheral Pin Select) registers must be unlocked before configuration, otherwise writes are silently ignored. When using the CTMU for capacitive touch, calibrate the time-base current at the operating voltage, as it varies with VDD. Finally, do not exceed 3.6V on any I/O pin - the absolute maximum is 4.0V per datasheet, but reliability is only guaranteed below 3.6V.
Thông tin tuân thủ
RoHS compliant per Microchip product page. AEC-Q100 status: the -V suffix indicates -40C to +105C automotive temperature grade but the part is not formally AEC-Q100 qualified per the datasheet; check with Microchip for automotive qualification documentation before use in safety-critical systems.
