PIC32MX220F032BT-I/SO - 32-bit MCU 32KB 40MHz | Microchip
料号： PIC32MX220F032BT-I/SO ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.65 | $2.65 |
| 10 | $2.41 | $24.10 |
| 100 | $2.1 | $210.00 |
| 500 | $1.84 | $920.00 |
| 1,000 | $1.62 | $1,620.00 |
PIC32MX220F032BT-I/SO 概述
What is a PIC32MX microcontroller? The PIC32MX family is Microchip's MIPS-based 32-bit MCU line that targets low-cost, low-power embedded applications where the simplicity of the PIC ecosystem (MPLAB X IDE, Harmony framework, X32C supports) meets 32-bit performance. Within the taxonomy it sits as: PIC32MX220 -> PIC32MX1xx/2xx family -> PIC32MX series -> 32-bit MCU -> microcontroller -> semiconductor. The 'MX' class emphasizes peripheral integration (USB, I2S, ADC) at MHz-class CPU throughput suitable for consumer electronics and industrial control.
Key features of the PIC32MX220F032BT-I/SO include 32 KB Flash (32 K x 8), 8 KB SRAM, a 10-bit ADC with up to 13 channels, two UART modules, two I2C modules, two SPI modules, USB 2.0 full-speed OTG, five 16-bit timers/counters, and four DMA channels. Industrial-grade temperature range of -40C to +85C suits harsh environments, while peripheral pin select (PPSS) functionality provides flexible pin-function remapping.
The architecture combines a 32-bit MIPS M4K core with separate bus structure for program and data, enabling deterministic interrupt response and single-cycle multiplication. Hardware DMA offloads memory transfers for peripherals such as ADC and UART, freeing CPU cycles for application logic. Independent PLLs for CPU and USB clocks allow the USB module to maintain 48-bit USB operation while the CPU runs at its maximum 40 MHz.
Typical applications include USB peripherals (HID devices, CDC virtual COM ports), audio interfaces (I2S codec control), industrial control nodes, low-cost HMI panels, sensor hubs, and small home appliances where 32-bit headroom matters but DSP-grade filters and software libraries exceed the budget.
Design consideration: The 'B' suffix denotes the 28-pin SOIC package; the 'T' indicates tape-and-reel packaging. When migrating between PIC32MX variants, verify pin compatibility across the SOIC, QFN, and SSOP footprints using the 28/36/44-pin family datasheet.
This page synthesizes distributor pricing, drop-in alternatives from Microchip's same-family portfolio, and practical design notes not collected in the manufacturer datasheet, giving a more complete procurement and engineering view than distributor catalogs alone.
直接替换替代料： PIC32MX220F032BT-I/SO ——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： PIC32MX220F032BT-I/SO （相同外形与封装尺寸） ——差异在于 Package, Program Memory (Flash), ADC, DMA Channels, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
PIC32MX220F032B-I/SO
✅ 直接替换✓ 有现货
$2.18 / 个
查看数据手册 →PIC32MX220F032BT-50I/SO
✅ 直接替换✓ 有现货
$2.03 / 个
查看数据手册 →PIC32MX220F032B-I/SS
✅ 直接替换✓ 有现货
$2.41 / 个
查看数据手册 →PIC32MX150F128BT-I/SO
✅ 直接替换✓ 有现货
$3.53 / 个
查看数据手册 →PIC32MX170F256BT-I/SO
✅ 直接替换✓ 有现货
$3.95 / 个
查看数据手册 →PIC32MX130F064BT-I/SO
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX120F032BT-I/SO
✅ 直接替换✓ 有现货
$2.05 / 个
查看数据手册 →PIC32MX220F032BT-I/SO 最大额定值与电气特性
| Core Architecture | MIPS32 M4K 32-bit |
| Core Count | 1 (Single-Core) |
| Maximum Clock Speed | 40 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| RAM | 8 KB |
| Supply Voltage Range | 2.3 V to 3.6 V |
| I/O Ports | Up to 34 |
| 封装 | 28-SOIC (7.50 mm body width) |
| 安装类型 | Surface Mount |
| 工作温度范围 | -40C to +85C (Industrial) |
| ADC | 10-bit, multiple channels |
| UART Modules | 2 |
| I2C Modules | 2 |
| SPI Modules | 2 |
| USB | USB 2.0 Full-Speed OTG |
| DMA Channels | Up to 4 |
| Timers | Five 16-bit |
| ROM Type | Flash |
| RoHS 状态 | Compliant |
PIC32MX220F032BT-I/SO 引脚配置
| 引脚 1 | RA0 — I/O port A bit 0 (PPS-capable) |
| 引脚 2 | RA1 — I/O port A bit 1 (PPS-capable) |
| 引脚 3 | RB1 — I/O port B bit 1 (PPS-capable) |
| 引脚 4 | RB0 — I/O port B bit 0 (PPS-capable) |
| 引脚 5 | RB3 — I/O port B bit 3 (PPS-capable) |
| 引脚 6 | RB2 — I/O port B bit 2 (PPS-capable) |
| 引脚 7 | VBUS — USB VBUS sense input |
| 引脚 8 | VDD — Positive supply voltage (2.3-3.6 V) |
| 引脚 9 | OSC1/CLKI/RA2 — Crystal oscillator input / external clock / GPIO |
| 引脚 10 | OSC2/CLKO/RA3 — Crystal oscillator output / clock output / GPIO |
| 引脚 11 | VSS — Ground reference |
| 引脚 12 | D- — USB D- data line |
| 引脚 13 | D+ — USB D+ data line |
| 引脚 14 | VUSB — USB internal transceiver supply (3.3 V) |
| 引脚 15 | RB4 — I/O port B bit 4 (PPS-capable) |
| 引脚 16 | RB5 — I/O port B bit 5 (PPS-capable) |
| 引脚 17 | RB6 — I/O port B bit 6 (PPS-capable) |
| 引脚 18 | RB7 — I/O port B bit 7 (PPS-capable) |
| 引脚 19 | RB9 — I/O port B bit 9 (PPS-capable) |
| 引脚 20 | RB8 — I/O port B bit 8 (PPS-capable) |
| 引脚 21 | RB10 — I/O port B bit 10 (PPS-capable) |
| 引脚 22 | RB11 — I/O port B bit 11 (PPS-capable) |
| 引脚 23 | RB12 — I/O port B bit 12 (PPS-capable) |
| 引脚 24 | RB13 — I/O port B bit 13 (PPS-capable) |
| 引脚 25 | RB14 — I/O port B bit 14 (PPS-capable) |
| 引脚 26 | RB15 — I/O port B bit 15 (PPS-capable) |
| 引脚 27 | AVDD — Analog positive supply |
| 引脚 28 | AVSS — Analog ground reference |
典型应用
PIC32MX220F032BT-I/SO 适用于 6 应用s: USB HID Peripherals (Keyboard, Mouse, Custom HID), USB CDC Virtual COM Port Bridges, Audio Codec Control (I2S Master Mode), Industrial Sensor Hubs with USB Diagnostics, Low-cost HMI Touch Panels, Small Home Appliance Controllers.
USB HID Peripherals (Keyboard, Mouse, Custom HID)
The PIC32MX220F032BT-I/SO's integrated USB 2.0 Full-Speed OTG controller with on-chip transceiver and pull-up resistors makes it well-suited for USB HID peripherals. With 32 KB Flash and 8 KB SRAM, it handles USB HID class drivers, button-matrix scanning, and basic LED feedback in HID device firmware. The 40 MHz CPU sustains 12-bit USB polling with comfortable headroom for application code. Pin pair D+/D- and dedicated VBUS sensing integrate with the part eliminating external PHY. Pair with a 3.3V LDO (e.g., AP2112) and 12 MHz crystal or 48 MHz internal USB PLL for a compact, low-BOM USB HID design.
推荐
USB CDC Virtual COM Port Bridges
The PIC32MX220F032BT-I/SO's USB OTG controller can be configured for CDC class, presenting as a virtual COM port to a host PC. This converts legacy RS-232 designs to USB without host driver installation on modern OSes (Windows 10+/macOS/Linux). The 32 KB Flash accommodates USB CDC stack plus UART bridge logic; the 8 KB SRAM sustains USB packet buffers and TX/RX FIFOs at 12 Mbps Full-Speed. Pair the existing UART bridge with an external MAX3232 for legacy RS-232 voltage translation when interfacing to industrial equipment still using RS-232 signal levels.
推荐
Audio Codec Control (I2S Master Mode)
The PIC32MX220F032BT-I/SO's I2S interface supports master mode at sample rates from 8 kHz to 48 kHz, enabling control of external audio DACs and codecs for low-cost audio playback peripherals. The dedicated I2S module provides separate bit-clock, word-select, and data lines driven by timer peripherals or the reference clock output. With 32 KB Flash and 8 KB SRAM, it plays back raw audio samples from external SPI Flash or stores short prompts in internal Flash. Use DMA to feed the I2S TX register without CPU intervention, freeing the MIPS32M4K core for user-interface tasks.
推荐
Industrial Sensor Hubs with USB Diagnostics
Industrial sensor hubs use the PIC32MX220F032BT-I/SO to aggregate data from UART/I2C/SPI sensors and expose it to a PC via CDC. The 32 KB Flash holds industrial protocols (Modbus RTU over USB CDC), sensor calibration tables, and USB stack. The 8 KB SRAM holds sensor FIFOs and USB endpoint packets, and the -40C to +85C industrial temperature range supports factory-floor deployment. Four DMA channels offload sensor data movement without CPU intervention, enabling deterministic sampling rates. The hardware peripheral pin select (PPS) flexibility simplifies PCB routing on dense multi-sensor boards.
推荐
Low-cost HMI Touch Panels
Low-cost human-machine interface panels use the PIC32MX220F32F32BT-I/SO to drive small TFT LCDs via SPI, read capacitive touch via I2C, and expose USB diagnostics to a host controller. The 32 KB Flash holds a small GUI library plus screen assets, and the 40 MHz CPU drives SPI LCDs at 20-40 MHz SCK frequencies. Two SPI controllers allow simultaneous LCD and external memory interfacing; four DMA channels keep screen updates smooth without CPU stalls. The 10-bit ADC reads backlight current sensing and analog rotary encoders for industrial HMI input.
推荐
Small Home Appliance Controllers
Small home appliances (rice cookers, coffee makers, robotic vacuums) use the PIC32MX220F032BT-I/SO as the central controller for motor PWM, temperature ADC sampling, button input, and LED/buzzer feedback. The 32 KB Flash holds appliance state machines and PID control firmware, and 8 KB SRAM is ample for runtime variables. Two UART modules support WiFi/BLE module (e.g., ESP32 co-processor) and debug logging simultaneously; two I2C modules drive sensor and EEPROM. Industrial -40C to +85C operation handles kitchen and laundry environments where temperature swings are common.
推荐
推荐产品汇总
工程参考数据： PIC32MX220F032BT-I/SO ——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 | PIC32MX220F032B-I/SO | PIC32MX220F032BT-50I/SO | PIC32MX220F032B-I/SS | PIC32MX150F128BT-I/SO | PIC32MX170F256BT-I/SO |
|---|---|---|---|---|---|---|
| Package | 28-SOIC (7.50 mm) | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit |
| Maximum Clock Speed | 40 MHz | 40 MHz | 50 MHz (+25%) | 40 MHz | 50 MHz (+25%) | 40 MHz |
| Program Memory (Flash) | 32 KB | 32 KB | 32 KB | 128 KB (+300%) | 256 KB (+700%) | 64 KB (+100%) |
| RAM | 8 KB | 8 KB | 8 KB | 32 KB (+300%) | 64 KB (+700%) | 16 KB (+100%) |
| USB 2.0 OTG | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) | No | No | No |
| Supply Voltage Range | 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 |
关键差异点
- Integrated USB 2.0 Full-Speed OTG with on-chip transceiver （对比 PIC32MX150F128BT-I/SO)
- 40 MHz vs 50 MHz CPU upgrade path （对比 PIC32MX220F032BT-50I/SO)
- Peripheral Pin Select (PPS) for flexible pin mapping （对比 PIC32MX120F032BT-I/SO)
设计说明
The PIC32MX220F032BT-I/SO requires a stable 3.3 V supply on VDD (pin 8) and AVSS (pin 11) within 2.3-3.6 V per the datasheet. USB applications additionally need 3.3 V on VUSB (pin 14) from a separate LDO filtered for low noise, since USB signal integrity is sensitive to supply ripple. Place 100 nF decoupling capacitors as close to VDD/VSS pairs as possible, plus a 10 uF bulk capacitor on each supply rail.
Keep the 28-SOIC footprint on a 7.50 mm body-width SOIC land pattern matching IPC-7351 nominal. Route the USB D+/D- pair (pins 12-13) as a 90-ohm differential pair with ground reference plane underneath, keeping stubs shorter than 3 mm. Decouple VUSB with a 100 nF + 4.7 uF capacitor combination right at the pin; the VUSB rail is internally regulated from VDD and is sensitive to switching noise.
When migrating between the PIC32MX220 and PIC32MX150/170 series, verify the pinout in the family datasheet (DS60001168L) - the 28-SOIC footprint is shared, however PPS function remapping can shift peripherals across pins. Do not assume USB is available on non-220 series parts - the USB OTG peripheral is unique to PIC32MX1XX/2XX 220 variants. Do not exceed 50 MHz CPU clock without ensuring your variant supports 50 MHz operation.
合规信息
RoHS and REACH compliant per Microchip product page. Industrial -40C to +85C temperature range; not AEC-Q100 automotive qualified. The 220 series parts with USB OTG are intended for industrial and consumer USB applications.
