PIC32MX450F128LT-V/PT - 80MHz 32-bit MCU 128KB Flash | Microchip
Référence : PIC32MX450F128LT-V/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $5.48 | $5,48 |
| 10 | $5.21 | $52,10 |
| 100 | $4.75 | $475,00 |
| 500 | $4.21 | $2 105,00 |
| 1 000 | $3.74 | $3 740,00 |
PIC32MX450F128LT-V/PT Présentation
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.
Alternatives de remplacement direct pour PIC32MX450F128LT-V/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 PIC32MX450F128LT-V/PT (même facteur de forme et même empreinte) — différant par Package, Core Architecture, ADC, Core Count, MSL Level.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC32MX450F128LT-I/PT
✅ Remplacement direct✓ En stock
$3.65 / unité
Voir la fiche technique →PIC32MX470F512LT-V/PT
✅ Remplacement direct✓ En stock
$6.18 / unité
Voir la fiche technique →PIC32MX450F128HT-V/MR
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC32MX450F128HT-I/RG
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$4.15 / unité
Voir la fiche technique →PIC32MX370F512L-V/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC32MX360F512L-80V/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC32MX450F128LT-V/PT Valeurs maximales et caractéristiques électriques
| 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 |
| Plage de température de fonctionnement | -40C to +105C (automotive "V" grade) |
| Boîtier | 100-pin TQFP (PT), 12x12 mm |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
| Niveau MSL | 3 (168 hours) |
Configuration des broches de PIC32MX450F128LT-V/PT
| Broche 1 | RG15 — General purpose I/O / PPS |
| Broche 2 | VDD — Supply voltage 2.3V-3.6V |
| Broche 3 | RA0 — General purpose I/O / analog |
| Broche 4 | RA1 — General purpose I/O / analog |
| Broche 5 | RA2 — General purpose I/O / analog |
| Broche 6 | RA3 — General purpose I/O / analog |
| Broche 7 | RA4 — General purpose I/O / analog |
| Broche 8 | RA5 — General purpose I/O / analog |
| Broche 9 | RA6 — General purpose I/O / analog |
| Broche 10 | RA7 — General purpose I/O / analog |
| Broche 11 | AVDD — Analog supply voltage |
| Broche 12 | AVSS — Analog ground |
| Broche 13 | RB0 — General purpose I/O / analog |
| Broche 14 | RB1 — General purpose I/O / analog |
| Broche 15 | RB2 — General purpose I/O / analog |
| Broche 16 | RB3 — General purpose I/O / analog |
| Broche 17 | RB4 — General purpose I/O / analog |
| Broche 18 | RB5 — General purpose I/O / analog |
| Broche 19 | RB6 — General purpose I/O / analog |
| Broche 20 | RB7 — General purpose I/O / analog |
| Broche 21 | RB8 — General purpose I/O / analog |
| Broche 22 | RB9 — General purpose I/O / analog |
| Broche 23 | RB10 — General purpose I/O / analog |
| Broche 24 | RB11 — General purpose I/O / analog |
| Broche 25 | RB12 — General purpose I/O / analog |
| Broche 26 | RB13 — General purpose I/O / analog |
| Broche 27 | RB14 — General purpose I/O / analog |
| Broche 28 | RB15 — General purpose I/O / analog |
| Broche 29 | VSS — Digital ground |
| Broche 30 | VDD — Supply voltage 2.3V-3.6V |
| Broche 31 | RC1 — General purpose I/O / PPS |
| Broche 32 | RC2 — General purpose I/O / PPS |
| Broche 33 | RC3 — General purpose I/O / PPS |
| Broche 34 | RC4 — General purpose I/O / PPS |
| Broche 35 | RC5 — General purpose I/O / PPS / SDA |
| Broche 36 | RC6 — General purpose I/O / PPS |
| Broche 37 | RC7 — General purpose I/O / PPS |
| Broche 38 | RC8 — General purpose I/O / PPS |
| Broche 39 | RC9 — General purpose I/O / PPS |
| Broche 40 | VDD — Supply voltage 2.3V-3.6V |
| Broche 41 | VSS — Digital ground |
| Broche 42 | RD0 — General purpose I/O / PMP |
| Broche 43 | RD1 — General purpose I/O / PMP |
| Broche 44 | RD2 — General purpose I/O / PMP |
| Broche 45 | RD3 — General purpose I/O / PMP |
| Broche 46 | RD4 — General purpose I/O / PMP |
| Broche 47 | RD5 — General purpose I/O / PMP |
| Broche 48 | RD6 — General purpose I/O / PMP |
| Broche 49 | RD7 — General purpose I/O / PMP |
| Broche 50 | RD8 — General purpose I/O / PMP |
| Broche 51 | RD9 — General purpose I/O / PMP |
| Broche 52 | RD10 — General purpose I/O / PMP |
| Broche 53 | RD11 — General purpose I/O / PMP |
| Broche 54 | RD12 — General purpose I/O / PMP |
| Broche 55 | RD13 — General purpose I/O / PMP |
| Broche 56 | RD14 — General purpose I/O / PMP |
| Broche 57 | RD15 — General purpose I/O / PMP |
| Broche 58 | VSS — Digital ground |
| Broche 59 | VDD — Supply voltage 2.3V-3.6V |
| Broche 60 | RE0 — General purpose I/O / PMP |
| Broche 61 | RE1 — General purpose I/O / PMP |
| Broche 62 | RE2 — General purpose I/O / PMP |
| Broche 63 | RE3 — General purpose I/O / PMP |
| Broche 64 | RE4 — General purpose I/O / PMP |
| Broche 65 | RE5 — General purpose I/O / PMP |
| Broche 66 | RE6 — General purpose I/O / PMP |
| Broche 67 | RE7 — General purpose I/O / PMP |
| Broche 68 | RC12 — General purpose I/O / PPS |
| Broche 69 | RC13 — General purpose I/O / PPS |
| Broche 70 | RC14 — General purpose I/O / PPS |
| Broche 71 | RC15 — General purpose I/O / PPS |
| Broche 72 | VBUS — USB VBUS sense input |
| Broche 73 | VUSB3V3 — USB internal 3.3V regulator output |
| Broche 74 | D- — USB D- differential data line |
| Broche 75 | D+ — USB D+ differential data line |
| Broche 76 | RF0 — General purpose I/O |
| Broche 77 | RF1 — General purpose I/O |
| Broche 78 | RF2 — General purpose I/O / SDA2 |
| Broche 79 | RF3 — General purpose I/O / SCL2 |
| Broche 80 | RF4 — General purpose I/O / USBID |
| Broche 81 | RF5 — General purpose I/O |
| Broche 82 | RF6 — General purpose I/O / SCL1 |
| Broche 83 | RF7 — General purpose I/O / SDA1 |
| Broche 84 | RF8 — General purpose I/O |
| Broche 85 | VSS — Digital ground |
| Broche 86 | VDD — Supply voltage 2.3V-3.6V |
| Broche 87 | RG0 — General purpose I/O |
| Broche 88 | RG1 — General purpose I/O |
| Broche 89 | RG2 — General purpose I/O |
| Broche 90 | RG3 — General purpose I/O |
| Broche 91 | RG6 — General purpose I/O / SCK2 |
| Broche 92 | RG7 — General purpose I/O / SDI2 |
| Broche 93 | RG8 — General purpose I/O / SDO2 |
| Broche 94 | RG9 — General purpose I/O / SS2 |
| Broche 95 | VDD — Supply voltage 2.3V-3.6V |
| Broche 96 | VSS — Digital ground |
| Broche 97 | OSC1 — Crystal/oscillator input |
| Broche 98 | OSC2 — Crystal/oscillator output |
| Broche 99 | MCLR — Master clear reset input (active-low) |
| Broche 100 | RG14 — General purpose I/O |
Applications typiques
PIC32MX450F128LT-V/PT convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC32MX450F128LT-V/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Integrated USB 2.0 Full-Speed OTG with on-chip transceiver (vs PIC32MX370F512L-V/PT)
- Automotive -40C to +105C temperature grade (vs PIC32MX450F128LT-I/PT)
- Larger Flash and RAM than PIC32MX330F064L family (vs PIC32MX330F064LT-V/PT)
Notes de conception
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.
Informations de conformité
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.
