PIC32MX150F128B-50I/SO - 50MHz 32-bit MCU, 128KB Flash | Microchip
MPN: PIC32MX150F128B-50I/SO ✓ Hoạt độngPIC32MX150F128B-50I/SO Tóm tắt
A 32-bit microcontroller (MCU) is a microprocessor-based system-on-chip that integrates a CPU core, program memory (Flash), data memory (SRAM), and a wide set of on-chip peripherals such as timers, communication controllers, and analog blocks. Microcontrollers sit at the top of the embedded-computing hierarchy: MCU -> microcontroller -> embedded processor -> semiconductor. The PIC32MX1XX/2XX family specifically addresses cost-sensitive 32-bit designs where an 8-bit PIC or 16-bit dsPIC is under-powered but a Cortex-M4 class device is over-spec or over-priced.
Key features include the Peripheral Pin Select (PPS) remapping engine for flexible signal routing, two I2S/SPI modules for codec and serial audio, a Parallel Master Port (PMP) for graphics and external memory, and a Charge Time Measurement Unit (CTMU) that supports mTouch capacitive touch buttons plus 1 ns high-resolution time measurement. The on-chip 10-bit ADC and internal temperature sensor round out the analog toolset. According to the Microchip PIC32MX1XX/2XX datasheet, the device operates from 2.3 V to 3.6 V with dedicated 5V-tolerant digital I/O pins for mixed-voltage designs.
Architecturally the PIC32MX150 uses a single-cycle MIPS32 M4K integer pipeline with hardware multiply/divide, a 5-stage prefetch cache, and an integrated 8 MHz internal FRC oscillator with PLL. Peripheral Pin Select (PPS) decouples digital peripheral functions from physical pin assignments, allowing designers to remap UART, SPI, and timer I/O on the fly and simplify PCB routing. The CTMU block provides constant-current sources for precise time-of-flight measurement, enabling both capacitive touch sensing and high-resolution pulse timing without external timing circuits.
Typical applications include USB audio peripherals, low-cost graphics HMI with PMP-driven LCDs, industrial control panels with mTouch buttons, sensor hubs, and consumer devices requiring 32-bit performance with USB device connectivity. The wide-body 28-SOIC footprint eases hand-prototyping and two-layer PCB assembly.
When designing with this part, allocate the USB DP/DPU pins carefully because they are not 5V-tolerant; add a proper ESD/EMI network and series resistor on D+/D-. The wide-body SOIC package has noticeably higher thermal resistance than QFN equivalents, so for high-pin-count 50-MHz workloads consider PIC32MX150F128B-I/ML variants if the PCB permits the QFN footprint.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX150F128B-50I/SO — 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 PIC32MX150F128B-50I/SO (cùng hình factor và footprint) — khác nhau ở Package, Operating Voltage, ADC, Core Architecture, DMIPS Performance.
PIC32MX150F128B-I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX250F128B-50I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX170F256B-50I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX130F128B-I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX230F256B-50I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX150F128B-50I/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Clock | 50 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| Data Memory (SRAM) | 32 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| I/O Pins | 21 |
| ADC | 10-bit |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Hộp | 28-pin SOIC (SO), wide-body 300 mil |
| USB | USB 2.0 Full-Speed Device |
| SPI/I2S Modules | 2 |
| I2C Modules | 2 |
| UART Modules | 2 |
| PMP (Parallel Master Port) | Yes |
| CTMU (Capacitive Touch / Timing) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 1 |
Cấu hình chân PIC32MX150F128B-50I/SO
| Chân 1 | MCLR — Master clear (reset) input; drive low to reset the device |
| Chân 2 | RA0 — General-purpose I/O / analog input / PPS remappable |
| Chân 3 | RA1 — General-purpose I/O / analog input / PPS remappable |
| Chân 4 | RB0 — General-purpose I/O / PGED1 programming data |
| Chân 5 | RB1 — General-purpose I/O / PGEC1 programming clock |
| Chân 6 | RB2 — General-purpose I/O / analog input |
| Chân 7 | RB3 — General-purpose I/O / analog input |
| Chân 8 | RB4 — General-purpose I/O |
| Chân 9 | RB5 — General-purpose I/O |
| Chân 10 | RB6 — General-purpose I/O |
| Chân 11 | VDD — Positive supply voltage (2.3 V to 3.6 V) |
| Chân 12 | VSS — Ground reference |
| Chân 13 | RB7 — General-purpose I/O |
| Chân 14 | RB8 — General-purpose I/O |
| Chân 15 | RB9 — General-purpose I/O / USB D+ |
| Chân 16 | RB10 — General-purpose I/O / USB D- |
| Chân 17 | RB11 — General-purpose I/O |
| Chân 18 | RB12 — General-purpose I/O |
| Chân 19 | RB13 — General-purpose I/O |
| Chân 20 | RB14 — General-purpose I/O |
| Chân 21 | RB15 — General-purpose I/O |
| Chân 22 | RC0 — General-purpose I/O |
| Chân 23 | RC1 — General-purpose I/O |
| Chân 24 | RC2 — General-purpose I/O |
| Chân 25 | RC3 — General-purpose I/O |
| Chân 26 | RC4 — General-purpose I/O |
| Chân 27 | VSS — Ground reference |
| Chân 28 | VDD — Positive supply voltage (2.3 V to 3.6 V) |
Ứng dụng tiêu biểu
PIC32MX150F128B-50I/SO phù hợp cho 6 Áp dụngs: USB Audio Peripherals (Speakers, Headsets, DACs), Graphics HMI with PMP-Driven LCDs, mTouch Capacitive Touch Panels, Industrial Sensor Hubs and Modbus Gateways, USB HID and Consumer Devices, Low-Cost Data Loggers with USB Streaming.
USB Audio Peripherals (Speakers, Headsets, DACs)
The PIC32MX150F128B-50I/SO is a strong fit for USB audio class 1.0 peripherals because it pairs an integrated Full-Speed USB 2.0 device controller with two I2S/SSP modules operating at audio sample rates. At 50 MHz the MIPS32 M4K core drives a USB isochronous endpoint at 48 kHz / 24-bit with sub-millisecond ISR latency, while the 32 KB SRAM holds ping-pong audio buffers without overrun. The 2.3-3.6 V supply rails cleanly off USB VBUS through an LDO, avoiding level shifters. This combination delivers USB headphone amplifiers, USB-to-I2S DAC dongles, and field-recording microphones where cost matters and full-speed bandwidth is sufficient. Microchip's MLA USB audio firmware reduces time-to-market further.
Được đề xuất
Graphics HMI with PMP-Driven LCDs
The PIC32MX150F128B-50I/SO is well-matched to small graphical HMI panels because its Parallel Master Port (PMP) drives 8/16-bit Intel-8080-style LCD controllers directly. The 50 MHz core pumps pixel data into the framebuffer at refresh rates suitable for 128x64 to 320x240 panels, while Peripheral Pin Select (PPS) lets designers route control signals onto convenient GPIO pins for clean 2-layer PCB routing. CTMU simplifies menu navigation via mTouch buttons alongside the LCD. Designers get a single-chip 32-bit HMI solution with 128 KB Flash for GUI assets and 32 KB SRAM for framebuffer compression, all in a hand-solderable wide-body SOIC.
Được đề xuất
mTouch Capacitive Touch Panels
The PIC32MX150F128B-50I/SO's on-chip Charge Time Measurement Unit (CTMU) is purpose-built for Microchip's mTouch capacitive touch library, supporting both self-capacitance buttons and mutual-capacitance sliders with sub-nanosecond timing resolution. The 50 MHz MIPS core runs the touch-scan loop plus the application stack concurrently, while the 28-SOIC footprint keeps white-goods and appliance panels hand-repairable. Designers get 1-32 touch electrodes with no external timing IC, plus the 10-bit ADC for adjacent analog sensors like NTC temperature. This combination is ideal for cooktops, washing machines, and HVAC controllers that need robust touch at low BOM cost.
Được đề xuất
Industrial Sensor Hubs and Modbus Gateways
The PIC32MX150F128B-50I/SO is a strong fit for industrial sensor hubs because its 50 MHz MIPS32 core, dual UART, and USB 2.0 device deliver Modbus RTU, RS-485, and USB CDC bridging in a single chip. The 32 KB SRAM accommodates Modbus transaction buffers plus a small RTOS, while the 10-bit ADC scans 4-20 mA loops with proper input conditioning. The industrial -40C to +85C temperature range supports factory-floor deployment, and the wide-body 28-SOIC withstands hand rework during field servicing. Designers get a compact, low-power hub that bridges field sensors to upstream PLCs or HMIs.
Được đề xuất
USB HID and Consumer Devices
The PIC32MX150F128B-50I/SO is well-suited for USB HID devices such as custom keypads, programmable macro pads, presentation remotes, and game controllers. The Full-Speed USB device plus 21 GPIO plus CTMU let designers support 64+ mechanical keys or 32 touch keys plus LEDs, encoders, and audio cues simultaneously. The 128 KB Flash hosts HID report descriptor plus custom vendor reports, while 32 KB SRAM handles ring buffers for high-rate inputs. Microchip's USB HID stack provides drop-in class drivers, and the wide-body SOIC simplifies hand-prototyping for small-batch custom peripherals.
Được đề xuất
Low-Cost Data Loggers with USB Streaming
The PIC32MX150F128B-50I/SO serves as a data logger brain because its 50 MHz core samples from the 10-bit ADC up to ~1 MSPS aggregate and streams results over USB Full-Speed CDC. The 128 KB Flash stores bootloader plus configuration pages, and 32 KB SRAM buffers burst samples before flushing to the host. The 2.3-3.6 V supply rails from a USB power rail or 3 V coin cell with boost. PPS lets engineers reassign UART or SPI for an external flash or SD-card companion if storage beyond on-chip RAM is needed, making the part a versatile USB-tethered logger for field instrumentation.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX150F128B-50I/SO — 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 | PIC32MX150F128B-I/SO | PIC32MX250F128B-50I/SO | PIC32MX170F256B-50I/SO | PIC32MX130F128B-I/SO | PIC32MX230F256B-50I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (SO, 300 mil) | 28-SOIC (SO, 300 mil) - same | 28-SOIC (SO, 300 mil) - same | 28-SOIC (SO, 300 mil) - same | 28-SOIC (SO, 300 mil) - same | 28-SOIC (SO, 300 mil) - same |
| Max CPU Clock | 50 MHz | 40 MHz | 50 MHz | 50 MHz | 40 MHz | 50 MHz |
| Flash Memory | 128 KB | 128 KB | 128 KB | 256 KB | 128 KB | 256 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 64 KB | 32 KB | 16 KB |
| USB | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device |
| I2S Modules | 2 | 2 | 2 | 2 | 2 | 2 |
| Operating Voltage | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- Higher CPU clock with full peripheral parity (vsPIC32MX150F128B-I/SO)
- Doubles Flash and SRAM at same speed grade (vsPIC32MX170F256B-50I/SO)
- Drop-in 50 MHz upgrade with extra PMP enhancements (vsPIC32MX250F128B-50I/SO)
Ghi chú thiết kế
Power the PIC32MX150F128B-50I/SO from a clean 3.3 V LDO with at least 100 mA headroom for active USB operation. Place a 10 uF bulk cap plus 100 nF decoupling on each VDD/VSS pair within 5 mm of the pins. USB bus-powered designs must keep total suspend current below 2.5 mA per the USB 2.0 spec; configure the part's regulator and oscillator modes carefully to meet suspend.
Route USB D+ and D- as a 90-ohm differential pair with matching length within 150 mil. Place the 15 k pull-down on D- (device mode) directly at the MCU pin, and add common-mode chokes plus ESD array (e.g. USBLC6-2SC6) close to the connector. The MCLR pin needs a 10 k pull-up to VDD and a 100 nF cap to ground for clean in-circuit serial programming (ICSP).
Do not apply 5 V to non-5V-tolerant pins. The USB D+/D- lines on the PIC32MX150 are 5V-tolerant at the wire side via the analog mux but the digital inputs are clamped; never back-drive voltage onto an unpowered MCU. Also, the PPS register unlock sequence must be executed exactly as documented - forgetting the unlock write-locks the part and bricks the firmware update path until the next POR.
At 50 MHz active, the PIC32MX150F128B-50I/SO draws roughly 25 mA from a 3.3 V rail (less than 0.5 mA/MHz per datasheet), yielding about 80 mW dissipation. The 28-SOIC wide-body has theta_JA near 70 C/W, so worst-case junction rise is only ~6 C above ambient at room temperature - no heatsink required, but adequate copper pour (>= 0.25 sq inch) is recommended for reliability.
When driving PMP parallel LCD buses, add 22-33 ohm series resistors on data and control lines to dampen reflections on cables longer than 50 mm. The 50 MHz core and PMP cycle rate produce edges under 5 ns; without damping, long LCD cables can show ghosting and color fringing on TFT panels. Keep PMP traces short and ground-referenced, and place the connector adjacent to the MCU to minimize stub lengths.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page; conflict-minerals statement available from Microchip. Not AEC-Q100 qualified - choose PIC32MX1XX/2XX AEC-Q100 variants for automotive.
