PIC32MX230F128LT-I/PT - 32-bit MCU 128KB Flash 100-TQFP | Microchip
MPN: PIC32MX230F128LT-I/PT ✓ Hoạt độngPIC32MX230F128LT-I/PT Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and a fixed set of peripherals (timers, ADCs, communication interfaces). The PIC32MX230 belongs to the broader PIC32 family, which sits in Microchip's 32-bit MCU hierarchy alongside ARM Cortex-M based SAM and dsPIC signal controllers. Within the system hierarchy, MCUs are a sub-category of microprocessors and semiconductors, designed to be the central processing element of an embedded system.
Key features of the PIC32MX230F128LT-I/PT include Peripheral Pin Select (PPS) which allows remapping of digital functions to a wide range of physical pins, a Parallel Master Port (PMP) with dual read/write buffers for graphics LCD or external memory interfacing, and a Real-Time Clock and Calendar (RTCC) module. The device operates across an industrial temperature range of -40C to +85C and is supported by MPLAB X IDE, MPLAB Harmony, and a complete GCC-based toolchain.
Architecturally, the MIPS32 M4K core is a classic five-stage pipeline RISC design with hardware multiply/divide and a single-cycle shift unit, giving the PIC32MX230 a deterministic interrupt latency. The on-chip CTMU converts capacitance to time, allowing the same I/O pin to serve as a touch key, slider, or proximity sensor. PPS remapping and the dual-buffered PMP reduce pin-count pressure on the 100-pin TQFP.
Typical applications include USB audio peripherals (USB headsets, USB microphones), industrial HMI panels with TFT-LCD and capacitive touch, home-automation bridges (Zigbee/WiFi gateway host), low-cost instrument front-ends with TFT display, and motor-control user-interface co-processors. The 128 KB Flash and 16 KB SRAM are sized for FreeRTOS or Micrium OS-II plus a USB stack.
When designing with this device, confirm that the chosen RTOS and middleware (e.g., MPLAB Harmony) fit within 128 KB of Flash after USB, graphics, and TCP/IP are included; budget approximately 64 KB for a Harmony USB Device + Graphics configuration. If your design later needs more headroom, the PIC32MX250/270/450/470 family provides the same peripherals in larger memory options.
This page consolidates distributor pricing, drop-in 100-TQFP alternatives, and engineering design notes in one place, complementing the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX230F128LT-I/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 PIC32MX230F128LT-I/PT (cùng hình factor và footprint) — khác nhau ở ADC, Package, Maximum CPU Speed, USB, DMA Channels.
PIC32MX230F128L-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX230F128LT-50I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX230F128LT-I/PF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX230F128HT-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX230F256DT-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX230F128LT-I/PT Tỷ lệ tối đa & tính chất điện
| Core | MIPS32 M4K |
| CPU Architecture | 32-bit RISC, 5-stage pipeline |
| Maximum CPU Speed | 50 MHz / 83 DMIPS |
| Program Memory (Flash) | 128 KB |
| Data Memory (SRAM) | 16 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| I/O Pins | 81 |
| ADC | 10-bit, 1 Msps, up to 16 channels |
| USB | USB 2.0 Full-Speed Device |
| SPI / I2S Modules | 4 (configurable as SPI or I2S) |
| I2C Modules | 2 |
| UART Modules | 2 |
| CTMU Channels | 16 (capacitive touch) |
| Parallel Master Port (PMP) | Yes, with dual read/write buffers |
| RTCC | Yes (Real-Time Clock and Calendar) |
| Peripheral Pin Select (PPS) | Yes |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Hộp | 100-pin TQFP (12x12 mm) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC32MX230F128LT-I/PT
| Chân 1 | SDA1/RA14 — I2C1 SDA or GPIO |
| Chân 2 | RA15 — GPIO |
| Chân 3 | RA0 — GPIO / AN0 |
| Chân 4 | RA1 — GPIO / AN1 |
| Chân 5 | RA2 — GPIO / AN2 / CVref- |
| Chân 6 | RA3 — GPIO / AN3 / CVref+ |
| Chân 7 | RA4 — GPIO / AN4 |
| Chân 8 | RA5 — GPIO / AN5 |
| Chân 9 | RA6 — GPIO |
| Chân 10 | RA7 — GPIO |
| Chân 11 | VSS — Ground |
| Chân 12 | VDD — Digital supply 2.3-3.6 V |
| Chân 13 | RB0 — GPIO / AN8 / PGED1 |
| Chân 14 | RB1 — GPIO / AN9 / PGEC1 |
| Chân 15 | RB2 — GPIO / AN10 |
| Chân 16 | RB3 — GPIO / AN11 |
| Chân 17 | RB4 — GPIO / AN12 |
| Chân 18 | RB5 — GPIO / AN13 |
| Chân 19 | RB6 — GPIO / AN14 |
| Chân 20 | RB7 — GPIO / AN15 |
| Chân 21 | VSS — Ground |
| Chân 22 | VDD — Digital supply 2.3-3.6 V |
| Chân 23 | RB8 — GPIO |
| Chân 24 | RB9 — GPIO |
| Chân 25 | RB10 — GPIO |
| Chân 26 | RB11 — GPIO |
| Chân 27 | RB12 — GPIO |
| Chân 28 | RB13 — GPIO |
| Chân 29 | RB14 — GPIO |
| Chân 30 | RB15 — GPIO |
| Chân 31 | VSS — Ground |
| Chân 32 | VDD — Digital supply 2.3-3.6 V |
| Chân 33 | RC0 — GPIO |
| Chân 34 | RC1 — GPIO |
| Chân 35 | RC2 — GPIO |
| Chân 36 | RC3 — GPIO |
| Chân 37 | RC4 — GPIO |
| Chân 38 | RC5 — GPIO |
| Chân 39 | RC6 — GPIO |
| Chân 40 | RC7 — GPIO |
| Chân 41 | RC8 — GPIO |
| Chân 42 | RC9 — GPIO |
| Chân 43 | VSS — Ground |
| Chân 44 | VDD — Digital supply 2.3-3.6 V |
| Chân 45 | RC10 — GPIO |
| Chân 46 | RC11 — GPIO |
| Chân 47 | RC12 — GPIO |
| Chân 48 | RC13 — GPIO |
| Chân 49 | RC14 — GPIO |
| Chân 50 | RC15 — GPIO |
| Chân 51 | VSS — Ground |
| Chân 52 | VDD — Digital supply 2.3-3.6 V |
| Chân 53 | RD0 — GPIO |
| Chân 54 | RD1 — GPIO |
| Chân 55 | RD2 — GPIO |
| Chân 56 | RD3 — GPIO |
| Chân 57 | RD4 — GPIO |
| Chân 58 | RD5 — GPIO |
| Chân 59 | RD6 — GPIO |
| Chân 60 | RD7 — GPIO |
| Chân 61 | RD8 — GPIO |
| Chân 62 | RD9 — GPIO |
| Chân 63 | RD10 — GPIO |
| Chân 64 | RD11 — GPIO |
| Chân 65 | RD12 — GPIO |
| Chân 66 | RD13 — GPIO |
| Chân 67 | RD14 — GPIO |
| Chân 68 | RD15 — GPIO |
| Chân 69 | VSS — Ground |
| Chân 70 | VDD — Digital supply 2.3-3.6 V |
| Chân 71 | RE0 — GPIO |
| Chân 72 | RE1 — GPIO |
| Chân 73 | RE2 — GPIO |
| Chân 74 | RE3 — GPIO |
| Chân 75 | RE4 — GPIO |
| Chân 76 | RE5 — GPIO |
| Chân 77 | RE6 — GPIO |
| Chân 78 | RE7 — GPIO |
| Chân 79 | RF0 — GPIO |
| Chân 80 | RF1 — GPIO |
| Chân 81 | RF2 — GPIO |
| Chân 82 | RF3 — GPIO |
| Chân 83 | RF4 — GPIO |
| Chân 84 | RF5 — GPIO |
| Chân 85 | RF6 — GPIO / U6BCLK |
| Chân 86 | RF7 — GPIO / U6RST |
| Chân 87 | RF8 — GPIO / U6BCLK2 |
| Chân 88 | RG0 — GPIO |
| Chân 89 | RG1 — GPIO |
| Chân 90 | VSS — Ground |
| Chân 91 | VDD — Digital supply 2.3-3.6 V |
| Chân 92 | RG6 — GPIO |
| Chân 93 | RG7 — GPIO |
| Chân 94 | RG8 — GPIO |
| Chân 95 | RG9 — GPIO |
| Chân 96 | MCLR — Master Clear (reset) input, active low |
| Chân 97 | AVSS — Analog ground |
| Chân 98 | AVDD — Analog supply 2.3-3.6 V |
| Chân 99 | VREF+/CVREF+ — ADC positive reference / comparator reference |
| Chân 100 | VREF- — ADC negative reference |
Ứng dụng tiêu biểu
PIC32MX230F128LT-I/PT phù hợp cho 6 Áp dụngs: USB Audio Peripherals (USB Headsets, USB Microphones), Industrial HMI with TFT-LCD and Capacitive Touch, Home-Automation / IoT Gateway Host Controller, Low-Cost Test and Measurement Front-End, Motor-Control User-Interface Co-Processor, Medical Patient Monitoring Accessories.
USB Audio Peripherals (USB Headsets, USB Microphones)
The PIC32MX230F128LT-I/PT's on-chip USB 2.0 full-speed device controller, combined with 128 KB Flash and 16 KB SRAM, makes it a strong host for USB audio class firmware including isochronous endpoints, volume/mute HID controls, and a small DSP front-end. The two I2S modules can connect directly to a stereo DAC or codec such as the Microchip MCP4921 or a TI TLV320AIC3254, while the 10-bit ADC handles push-button or microphone bias monitoring. Engineers typically place this MCU between the USB connector and the audio codec, with PPS used to remap I2S LRCLK/BCLK to free pins, simplifying PCB layout. The 50 MHz MIPS32 M4K core leaves enough headroom for a 16 kHz / 48 kHz USB audio stream plus a small volume curve and LED indicator logic.
Được đề xuất
Industrial HMI with TFT-LCD and Capacitive Touch
The PIC32MX230F128LT-I/PT integrates a Parallel Master Port (PMP) with dual read/write buffers that drives a TFT-LCD up to QVGA resolution, while the CTMU module scans up to 16 capacitive touch electrodes through the same I/O pins. The Peripheral Pin Select function allows designers to reassign display data lines and touch-scan pins without re-spinning the PCB, which simplifies layout iteration. With 128 KB Flash, MPLAB Harmony's Graphics Object Library and a small emWin/Micrium GUI fit comfortably, leaving room for the touch driver. The 81 I/O pins support a 16-bit PMP bus, SPI touch controller, and several GPIOs for LEDs, buzzer, and rotary encoder inputs.
Được đề xuất
Home-Automation / IoT Gateway Host Controller
The PIC32MX230F128LT-I/PT is well-suited as a Zigbee or sub-GHz wireless gateway host, with UART/SPI/I2C peripherals that connect to radios such as the MRF24J40 (IEEE 802.15.4) or Microchip RN2483 LoRa module. The 128 KB Flash holds a MiWi or Zigbee PRO stack with provisioning callbacks, while 16 KB SRAM is sufficient for neighbor tables of small networks. The RTCC module timestamps sensor events and supports time-zone-aware scheduling, and the CTMU can scan a small front-panel keypad. The 50 MHz core can run a tiny HTTP-to-Zigbee bridge or a Matter-over-Thread controller sketch, and the on-chip USB device port allows tethered commissioning over USB.
Được đề xuất
Low-Cost Test and Measurement Front-End
The PIC32MX230F128LT-I/PT provides a 10-bit 1 Msps ADC with up to 16 input channels, suitable for bench multimeters, simple oscilloscope front-ends, or data-logging probes. The four SPI/I2S modules can drive an external 16-bit ADC such as the MCP33151 for higher-resolution measurements, while USB device output streams samples to a host PC. The RTCC module timestamps each acquisition for log correlation, and the 81 I/O pins drive a small TFT display and a rotary encoder for user input. With 128 KB Flash, a small DSP FFT or RMS-calculation library fits comfortably alongside USB CDC firmware.
Được đề xuất
Motor-Control User-Interface Co-Processor
The PIC32MX230F128LT-I/PT serves as a user-interface co-processor for a separate dsPIC or PIC32 motor-control MCU, handling TFT-LCD display, capacitive-touch keypad, and USB commissioning port. The PMP port drives the display, the CTMU scans touch keys, and UART/SPI pass control setpoints to the main motor controller. The 50 MHz core is more than adequate for GUI refresh and a PID visualization without taxing the time-critical motor-control loops. Industrial temperature range (-40 C to +85 C) matches the harsh environment typical of motor drives.
Được đề xuất
Medical Patient Monitoring Accessories
Although not a primary medical MCU, the PIC32MX230F128LT-I/PT fits accessory roles in patient monitoring such as a USB-tethered pulse-oximeter, a therapy-device remote control, or a bedside display terminal. Its USB device port streams patient data to a host PC, the 10-bit ADC reads analog sensor front-ends, and the CTMU scans a small capacitive touch keypad. The 128 KB Flash accommodates the USB stack plus a small proprietary protocol library, and the industrial temperature range supports hospital environments. Designers should add appropriate isolation and follow IEC 60601 when integrating into a medical system.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX230F128LT-I/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 | PIC32MX230F128L-I/PT | PIC32MX230F128LT-50I/PT | PIC32MX230F128LT-I/PF | PIC32MX230F256DT-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin TQFP (12x12 mm) | 100-pin TQFP (12x12 mm) | 100-pin TQFP (12x12 mm) | 100-pin TQFP (PF variant) | 100-pin TQFP (12x12 mm) |
| Maximum CPU Speed | 50 MHz / 83 DMIPS | 40 MHz / 66 DMIPS (-20%) | 50 MHz / 83 DMIPS | 50 MHz / 83 DMIPS | 50 MHz / 83 DMIPS |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 256 KB (+100%) |
| SRAM | 16 KB | 16 KB | 16 KB | 16 KB | 32 KB (+100%) |
| USB | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device |
| I/O Pins | 81 | 81 | 81 | 81 | 81 |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
Bảo phân biệt quan trọng
- Higher CPU speed (50 MHz) versus the 40 MHz speed grade sibling (vsPIC32MX230F128L-I/PT)
- Same peripheral set and 100-pin TQFP footprint as the higher-memory 256 KB sibling (vsPIC32MX230F256DT-I/PT)
- Mature PIC32 ecosystem with MPLAB X IDE and Harmony middleware support (vsCross-brand ARM Cortex-M0 alternatives)
Ghi chú thiết kế
Decouple each VDD/VSS pair with a 0.1 uF ceramic capacitor placed within 5 mm of the pin, plus a bulk 10 uF tantalum or ceramic capacitor near the package. Place the analog AVDD/AVSS pair on a separate low-noise LDO regulator (e.g., Microchip MCP1700 or MCP1755) and decouple it with 10 uF + 0.1 uF. Estimated: at 50 MHz with all peripherals enabled, the PIC32MX230 typically draws 30-40 mA from VDD; the AVDD rail should source at least 10 mA. Source: Microchip PIC32MX230 datasheet section on power supply design.
Route the 50 MHz system trace to a short, impedance-controlled path and avoid running it parallel to analog-input traces to minimize coupling. The 100-pin TQFP has an exposed thermal pad on the bottom side; solder it to a continuous copper pour connected to VSS to lower theta-JA from ~50 C/W to ~30 C/W (estimated using standard JEDEC EIA/JESD51 assumptions). Use a 4-layer stack-up with continuous ground plane beneath the part for best EMI performance. Source: Microchip PIC32MX230 hardware design checklist.
Do not skip the MCLR pull-up resistor (typically 10 kOhm to VDD); without it the part can enter random reset states. The on-chip voltage regulator requires an external 10 uF + 0.1 uF capacitor on the VCAP pin (pin 56 on this TQFP) - failing to populate these caps prevents the device from starting up. Configuration bits must be set to enable the JTAG or ICSP debug pins; leaving them as default GPIO can prevent ICSP programming. Source: Microchip PIC32MX230 datasheet configuration bits section.
Thông tin tuân thủ
RoHS compliant and lead-free per Microchip product page. Industrial temperature grade (-40 C to +85 C) is not AEC-Q100 qualified; for automotive use consider PIC32MX1xx AEC-Q100 variants.
