PIC32MX230F256BT-I/SS - 32-bit MCU, 256KB Flash, USB, 28-SSOP
料号： PIC32MX230F256BT-I/SS ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.78 | $37.80 |
| 100 | $3.36 | $336.00 |
| 500 | $2.94 | $1,470.00 |
| 1,000 | $2.65 | $2,650.00 |
| 2,500 | $2.4 | $6,000.00 |
PIC32MX230F256BT-I/SS 概述
A microcontroller (microcontroller unit, MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data memory, and a rich set of peripherals such as timers, ADC, communication controllers and interrupt controllers. Within the broader taxonomy, the PIC32MX270F256BT-I/SS belongs to the 32-bit MCU category, sub-categorized as a MIPS M4K core family part, and within Microchip's PIC32MX1xx/2xx 28/36/44-pin family of mid-range 32-bit microcontrollers designed for audio, graphics and USB-connected embedded designs.
Key features of the PIC32MX230F256BT-I/SS include Peripheral Pin Select (PPS) for flexible I/O remapping, a Parallel Master Port (PMP) for graphics or external memory, mTouch™ capacitive touch hardware support, a 10-bit 1 Msps ADC with up to 13 input channels, two I²S/SPI modules for codec interfacing, and USB 2.0 full-speed device/host/OTG. The 'I' suffix indicates an industrial temperature grade of -40 °C to +85 °C, while the 'T' suffix indicates tape-and-reel packaging delivery.
Architecturally, the device is built around a 32-bit MIPS M4K RISC core with single-cycle hardware multiply/divide, a 5-stage pipeline, and a 32-bit-wide prefetch cache that brings Flash access close to zero wait-state throughput. The PIC32MX1xx/2xx series uses Harvard architecture with separate Flash and SRAM buses, plus a dedicated peripheral bus. USB is provided by an on-chip transceiver and the USB 2.0 full-speed PHY, removing the need for an external transceiver in most designs.
Typical applications for the PIC32MX230F256BT-I/SS include USB HID/CMSIS-DAP/mouse/keyboard peripherals, low-cost audio playback and record systems, low-end graphic displays with PMP, capacitive touch panels for appliances and industrial controls, motor control, home automation, and connected sensor nodes.
When designing with this part, verify that MPLAB X IDE plus XC32 compiler are available in your toolchain, and that the 28-SSOP footprint (0.209 in body width, 1.00 mm pitch) can be assembled by your contract manufacturer. Always use Microchip's MPLAB Code Configurator (MCC) to generate peripheral initialization code and validate PPS mappings before committing to PCB layout.
This page synthesizes distributor pricing, drop-in alternatives within the PIC32MX 28-SSOP footprint, and practical firmware considerations not consolidated in the manufacturer datasheet alone.
直接替换替代料： PIC32MX230F256BT-I/SS ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC32MX230F256BT-I/SS （相同外形与封装尺寸） ——差异在于 ADC, Operating Temperature, Package, Timers, CTMU.
快速对比工具——选择替代料号进行并排对比：
PIC32MX250F256BT-I/SS
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX170F256BT-I/SS
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX150F128BT-I/SS
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX130F256BT-I/SS
✅ 直接替换✓ 有现货
$3.12 / 个
查看数据手册 →PIC32MX230F256BT-I/SS 最大额定值与电气特性
| Core | MIPS32 M4K, 32-bit RISC |
| Maximum CPU Frequency | 50 MHz (83 DMIPS) |
| Program Memory (Flash) | 256 KB |
| Data Memory (SRAM) | 16 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| I/O Pins | 21 (on SSOP-28) |
| ADC | 10-bit, up to 13 input channels, 1 Msps |
| Comparators | 2 |
| Timers | 5 x 16-bit |
| UART Modules | 2 |
| SPI Modules | 2 (shared with I²S) |
| I²C Modules | 2 |
| I²S Modules | 2 |
| USB | USB 2.0 Full-Speed (Device/Host/OTG) with on-chip transceiver |
| PMP (Parallel Master Port) | Yes |
| CTMU | Yes (mTouch capacitive touch, 1 ns time measurement) |
| RTCC | Yes (Real-Time Clock/Calendar) |
| Temperature Sensor | On-chip |
| PPS | Peripheral Pin Select |
| Active Current | 0.5 mA/MHz typical |
| 封装 | 28-SSOP (5.30 mm / 0.209 in body, 1.00 mm pitch) |
| 安装类型 | Surface Mount |
| 工作温度 | -40 °C to +85 °C (industrial, 'I' suffix) |
| Delivery Format | Tape & Reel ('T' suffix) |
| RoHS 状态 | Compliant |
PIC32MX230F256BT-I/SS 引脚配置
| 引脚 1 | RA0 — PORTA bit 0 / analog input / mappable peripheral via PPS |
| 引脚 2 | RA1 — PORTA bit 1 / analog input / mappable peripheral via PPS |
| 引脚 3 | RA2 — PORTA bit 2 / analog input / mappable peripheral via PPS |
| 引脚 4 | RA3 — PORTA bit 3 / analog input / reference voltage / mappable peripheral via PPS |
| 引脚 5 | RA4 — PORTA bit 4 / analog input / mappable peripheral via PPS |
| 引脚 6 | AVDD — Analog supply voltage (tie to VDD with ferrite or short) |
| 引脚 7 | AVSS — Analog ground (tie to VSS) |
| 引脚 8 | RB0 — PORTB bit 0 / PGED1 (programming/debug data) / mappable peripheral via PPS |
| 引脚 9 | RB1 — PORTB bit 1 / PGEC1 (programming/debug clock) / mappable peripheral via PPS |
| 引脚 10 | RB2 — PORTB bit 2 / analog input / mappable peripheral via PPS |
| 引脚 11 | RB3 — PORTB bit 3 / analog input / mappable peripheral via PPS |
| 引脚 12 | VSS — Digital ground |
| 引脚 13 | VDD — Digital supply voltage 2.3 V to 3.6 V |
| 引脚 14 | RB4 — PORTB bit 4 / analog input / mappable peripheral via PPS |
| 引脚 15 | RB5 — PORTB bit 5 / analog input / mappable peripheral via PPS |
| 引脚 16 | RB6 — PORTB bit 6 / analog input / mappable peripheral via PPS |
| 引脚 17 | RB7 — PORTB bit 7 / analog input / mappable peripheral via PPS |
| 引脚 18 | RB8 — PORTB bit 8 / mappable peripheral via PPS |
| 引脚 19 | VUSB3V3 — USB internal transceiver supply 3.3 V (connect to VDD) |
| 引脚 20 | VBUS — USB VBUS detect input (5 V tolerant with internal divider) |
| 引脚 21 | D- — USB D- (negative data line) / mappable peripheral via PPS |
| 引脚 22 | D+ — USB D+ (positive data line) / mappable peripheral via PPS |
| 引脚 23 | RC0 — PORTC bit 0 / mappable peripheral via PPS |
| 引脚 24 | RC1 — PORTC bit 1 / mappable peripheral via PPS |
| 引脚 25 | RC2 — PORTC bit 2 / mappable peripheral via PPS |
| 引脚 26 | RC3 — PORTC bit 3 / mappable peripheral via PPS |
| 引脚 27 | RC4 — PORTC bit 4 / mappable peripheral via PPS |
| 引脚 28 | OSC1/RC5 — External crystal oscillator input / PORTC bit 5 / mappable peripheral via PPS |
典型应用
PIC32MX230F256BT-I/SS 适用于 6 应用s: USB Human Interface Devices (HID), Low-cost Audio Playback / Record, Capacitive Touch Panels (mTouch™), Industrial Control / Home Automation, Low-End Graphic Displays (PMP), Connected Sensor Nodes / IoT Edges.
USB Human Interface Devices (HID)
The PIC32MX230F256BT-I/SS is well suited for USB HID peripherals such as keyboards, mice, gamepads, custom input devices, and CMSIS-DAP-compatible debug probes. Its on-chip USB 2.0 Full-Speed transceiver (device, host, and OTG capable) eliminates the external PHY and pull-up resistor network typically required. The 256 KB Flash holds a USB stack plus HID report descriptors, while 16 KB SRAM supports HID ring buffers. Peripheral Pin Select (PPS) lets engineers map USB D+/D- plus interrupt inputs to convenient SSOP-28 pins. The 0.5 mA/MHz active current keeps bus-powered designs compliant with USB suspend current budgets (<2.5 mA). Use Microchip's MPLAB Harmony USB Device Stack to accelerate HID enumeration.
推荐
Low-cost Audio Playback / Record
The two on-chip I²S/SPI modules make the PIC32MX230F256BT-I/SS a strong fit for entry-level audio designs that interface with external audio DACs, ADCs, or codec chips. Combined with a CTMU-driven DMA engine, the MCU can sustain stereo audio at 48 ksps with 16-bit resolution. The 256 KB Flash accommodates USB audio class plus DSP effects, while 16 KB SRAM is enough for buffering or short reverb tails. PPS lets designers route I²S BCK, LRCK, and DATA signals to free SSOP-28 pins for clean PCB routing. The 10-bit ADC can also be used for auxiliary mic preamp sampling or for monitoring the audio supply rail.
推荐
Capacitive Touch Panels (mTouch™)
The PIC32MX230F256BT-I/SS integrates Microchip's CTMU (Charge Time Measurement Unit), which provides native hardware support for mTouch™ capacitive touch buttons, sliders, and proximity sensors with 1 ns resolution time measurement. This removes the need for an external touch controller in many appliance, IoT, and consumer designs. The 28-SSOP pin count supports up to 13 ADC-derived touch channels, ideal for appliance control panels or HMI tiles. PPS makes it easy to remap CTMU output to any convenient GPIO. Combined with the on-chip temperature sensor, the MCU can also handle temperature-compensated touch performance.
推荐
Industrial Control / Home Automation
Industrial control and home automation designs benefit from the PIC32MX230F256BT-I/SS's 10-bit 1 Msps ADC for sensor sampling, two comparators for analog supervision, and multiple UART/I²C/SPI interfaces for sensor and actuator networking. Industrial-grade -40 °C to +85 °C operation lets the device survive factory-floor temperature swings, while 0.5 mA/MHz active current keeps heat dissipation modest in sealed enclosures. The PMP block supports small graphic LCDs or character displays used in appliance front panels, while RTCC enables battery-backed event scheduling. Use the PIC32MX1XX/2XX family datasheet's reference designs for sensor signal conditioning and 24 V interface circuits.
推荐
Low-End Graphic Displays (PMP)
The PIC32MX230F256BT-I/SS integrates a Parallel Master Port (PMP) capable of driving small graphic LCDs, OLED panels, or external memory. Combined with the on-chip I²S module plus DMA, the MCU can sustain low-resolution graphic refreshes for monochrome TFTs and character LCDs without an external graphics controller. With 16 KB SRAM, designers can implement small framebuffers or partial updates in less than full-screen designs. PPS lets the data and control signals route to convenient pins for clean PCB routing in 28-SSOP layouts, keeping the bill of materials small in cost-sensitive HMI products.
推荐
Connected Sensor Nodes / IoT Edges
IoT edge and connected sensor node applications leverage the PIC32MX230F256BT-I/SS's USB device/host/OTG, ADC, and serial interfaces plus multiple low-power modes for battery-backed operation. The on-chip USB-OTG lets the node act as either a USB peripheral or USB host, enabling USB-to-I²C/SPI bridges or USB-hosted sensor hubs. Multiple idle, sleep, and low-power modes drop quiescent current to single-digit microamps, suitable for solar- or battery-powered IoT deployments. Combined with the RTCC for scheduled wakeups and the 1 ns CTMU for precise time measurement, the device supports duty-cycled sensing pipelines for long battery life.
推荐
推荐产品汇总
工程参考数据： PIC32MX230F256BT-I/SS ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC32MX250F256BT-I/SS | PIC32MX170F256BT-I/SS | PIC32MX150F128BT-I/SS | PIC32MX130F256BT-I/SS |
|---|---|---|---|---|---|
| Package | 28-SSOP (5.30 mm) | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / DMIPS | MIPS32 M4K, 50 MHz / 83 DMIPS | MIPS32 M4K, 50 MHz / 83 DMIPS | MIPS32 M4K, 50 MHz / 83 DMIPS | MIPS32 M4K, 50 MHz / 83 DMIPS | MIPS32 M4K, 50 MHz / 83 DMIPS |
| Flash | 256 KB | 256 KB | 256 KB | 128 KB (-50%) | 256 KB |
| SRAM | 16 KB | 32 KB (+100%) | 64 KB (+300%) | 16 KB | 16 KB |
| USB | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device only |
| I²S Modules | 2 | 2 | 2 | 2 | 1 |
| CTMU (mTouch) | Yes | Yes | Yes | Yes | Yes |
| Industrial Temp Range | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
关键差异点
- Highest pin-compatible Flash density tier in the 28-SSOP PIC32MX230 family （对比 PIC32MX150F128BT-I/SS)
- Full USB 2.0 FS Device/Host/OTG with on-chip transceiver （对比 PIC32MX130F256BT-I/SS)
- Two I²S modules for stereo audio interfaces （对比 PIC32MX130F256BT-I/SS)
设计说明
Decouple VDD and AVDD with a 100 nF ceramic capacitor placed within 3 mm of each pin, plus a 1 µF bulk capacitor per supply rail. The PIC32MX230F256BT-I/SS VUSB3V3 pin (pin 19) must be tied to VDD with its own 100 nF decoupling cap to filter the internal USB transceiver. For USB-suspended low-power designs, configure all unused I/O as analog inputs and disable unused peripherals via PMD bits to achieve sub-10 µA quiescent draw.
Route the USB D+ and D- differential pair with 90 Ω differential impedance and length matching within 2 mm. Place the VBUS detect network (typically a divider to a 5 V tolerant pin) close to pin 20 to avoid noise coupling. The 28-SSOP 1.00 mm pitch allows escape routing on a 4-layer PCB; place ground pour under the device body and stitch grounds aggressively around high-speed traces.
Do not leave the MCLR pin floating on production designs; pull it up to VDD with a 10 kΩ resistor and add a 100 nF cap to ground for noise rejection. Avoid driving pins above 3.6 V; the device is NOT 5 V tolerant on most I/O. If a 5 V signal is needed, level-shift with a resistor divider or external buffer. Note that the VBUS pin is internally clamped, but external ESD protection (USBLC6-2SC6) is recommended for production boards.
合规信息
RoHS compliant per Microchip product page. Not AEC-Q100 qualified (industrial grade only); choose PIC32MX variants with explicit automotive qualification where required.
