PIC32MX170F256B-V/SS - 50MHz 32-bit MCU 256KB Flash | Microchip
部品番号: PIC32MX170F256B-V/SS ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $4.12 | $4.12 |
| 10 | $3.71 | $37.10 |
| 100 | $3.25 | $325.00 |
| 500 | $2.84 | $1,420.00 |
| 1,000 | $2.45 | $2,450.00 |
PIC32MX170F256B-V/SS 概要
A 32-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working memory, and a rich set of peripherals such as timers, communication controllers, and analog blocks. PIC32MX parts belong to Microchip's MIPS-based 32-bit MCU family, sitting in the hierarchy 32-bit MCU -> microcontroller -> embedded processor -> semiconductor. The M4K core implements the MIPS32 instruction set with hardware multiply/divide and zero-cost exception handling, delivering substantially higher throughput than 8/16-bit legacy PIC microcontrollers for DSP and graphics workloads.
Key differentiating features of the PIC32MX170F256B-V/SS include 256 KB Flash and 64 KB RAM (the largest memory in the 28-pin PIC32MX1xx/2xx family), two I2S/SPI modules for audio codec connectivity, a Parallel Master Port (PMP) for graphics or external memory, Peripheral Pin Select (PPS) for flexible pin mapping, mTouchTM capacitive-touch sensing, 1 ns high-resolution time measurement, and an on-chip temperature sensor. The device also integrates USB 2.0 full-speed device/host/OTG, a 10-bit ADC, and multiple UART/I2C/SPI ports. The "-V" suffix denotes the automotive (-40C to +125C) temperature grade.
Architecturally, the PIC32MX170F256B combines the deterministic MIPS M4K core with tightly-coupled DMA, dedicated audio (I2S) peripherals, and a Peripheral Pin Select (PPS) routing matrix - allowing most digital peripherals to be remapped to multiple pins, which simplifies PCB layout. The 256 KB Flash is large enough for full USB stacks, graphics libraries, and audio codecs, while the 64 KB SRAM supports reasonable frame buffers and audio sample buffers without external memory.
Common applications for the PIC32MX170F256B-V/SS include automotive body and HMI controllers, USB audio interfaces, low-cost graphics terminals using PMP, IoT edge nodes with USB device connectivity, capacitive-touch user interfaces, and industrial sensor hubs. Its AEC-Q100 qualification makes it a strong fit for cabin and chassis electronics where automotive temperature ranges are mandatory.
When designing with this MCU, ensure the VDD/VSS pins are properly decoupled (100 nF + bulk) and that the 28-pin SSOP package's exposed thermal pad is soldered for mechanical robustness. The PPS feature must be configured at startup to assign peripherals to the desired pins - missing this step is one of the most common pitfalls when porting code from older PIC devices.
This page synthesizes current distributor pricing, drop-in same-brand pin-to-pin compatible alternatives, and practical design notes that complement the manufacturer datasheet.
ドロップイン代替品: PIC32MX170F256B-V/SS — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PIC32MX170F256B-V/SS （同一形状・フットプリント） — 相違点: Package, Operating Temperature, ADC, Maximum CPU Speed, USB.
クイック比較ツール — 並列比較する代替部品を選択:
PIC32MX170F256B-I/SS
✅ ドロップイン✓ 在庫あり
$2.2 / 個
データシートを見る →PIC32MX170F256B-V/SO
✅ ドロップイン✓ 在庫あり
$2.78 / 個
データシートを見る →PIC32MX170F256B-V/ML
✅ ドロップイン✓ 在庫あり
$2.74 / 個
データシートを見る →PIC32MX130F256B-I/SS
✅ ドロップイン✓ 在庫あり
$3.15 / 個
データシートを見る →PIC32MX150F128B-I/SS
✅ ドロップイン✓ 在庫あり
$2.65 / 個
データシートを見る →PIC32MM0256GPM028-I/SS
✅ ドロップイン✓ 在庫あり
$2.12 / 個
データシートを見る →PIC32MX170F256B-V/SS 最大定格＆電気的特性
| Core | MIPS32 M4K |
| Maximum CPU Frequency | 50 MHz |
| DMIPS | 83 DMIPS |
| Program Flash | 256 KB |
| SRAM | 64 KB |
| 電源電圧 | 2.3 V to 3.6 V |
| Active Current (typ.) | 0.5 mA/MHz |
| パッケージ | 28-pin SSOP (V/SS) |
| 動作温度 | -40C to +125C (automotive grade -V) |
| Automotive Qualification | AEC-Q100 |
| I/O Pins | 21 (typical for 28-pin variant) |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| I2S/SPI Modules | 2 |
| Parallel Master Port (PMP) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| mTouch Capacitive Touch | Yes |
| On-chip Temperature Sensor | Yes |
| ADC | 10-bit |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
PIC32MX170F256B-V/SS ピン構成
| ピン 1 | RA0 — GPIO / analog / PPS |
| ピン 2 | RA1 — GPIO / analog / PPS |
| ピン 3 | RA2 — GPIO / analog / PPS |
| ピン 4 | RA3 — GPIO / analog / PPS |
| ピン 5 | RA4 — GPIO / analog / PPS |
| ピン 6 | VDD — Positive supply voltage (2.3V to 3.6V) |
| ピン 7 | VSS — Ground reference |
| ピン 8 | OSC1/RC12 — Crystal oscillator input or GPIO |
| ピン 9 | OSC2/RC13 — Crystal oscillator output or GPIO |
| ピン 10 | RB0 — GPIO / PGED1 programming |
| ピン 11 | RB1 — GPIO / PGEC1 programming |
| ピン 12 | RB2 — GPIO / analog / PPS |
| ピン 13 | RB3 — GPIO / analog / PPS |
| ピン 14 | RB4 — GPIO / SDA2 / PPS |
| ピン 15 | RB5 — GPIO / SCL2 / PPS |
| ピン 16 | RB6 — GPIO / PGED2 / PPS |
| ピン 17 | RB7 — GPIO / PGEC2 / PPS |
| ピン 18 | RB8 — GPIO / USBID / PPS |
| ピン 19 | RB9 — GPIO / USBVBUS / PPS |
| ピン 20 | VUSB — USB transceiver supply (3.3V) |
| ピン 21 | RC0 — GPIO / USB D+ |
| ピン 22 | RC1 — GPIO / USB D- |
| ピン 23 | RC2 — GPIO / analog / PPS |
| ピン 24 | RC3 — GPIO / analog / PPS |
| ピン 25 | RC4 — GPIO / analog / PPS |
| ピン 26 | RC5 — GPIO / analog / PPS |
| ピン 27 | RC6 — GPIO / analog / PPS |
| ピン 28 | VSS — Ground reference |
主な用途
PIC32MX170F256B-V/SS の用途: 6 件s: Automotive Body and HMI Controllers, USB Audio Device and Headsets, Low-Cost Graphics Terminals, Industrial IoT Edge Devices, Capacitive Touch Control Panels, Educational and Maker Development Boards.
Automotive Body and HMI Controllers
The PIC32MX170F256B-V/SS suits body and HMI modules because it is AEC-Q100 qualified for -40C to +125C cabin environments. The 256 KB Flash stores full CAN/J1939 or LIN stacks plus a small graphics UI, while the 64 KB SRAM holds HMI frame buffers for 320x240 QVGA displays driven by the Parallel Master Port. The two I2S/SPI modules support audio prompts via an external codec, and mTouch handles capacitive switches on door panels and center consoles. Power dissipation is bounded by the 28-pin SSOP footprint and automotive 12V battery transients are managed by a front-end TVS/regulator circuit feeding the 2.3V to 3.6V rail.
おすすめ
USB Audio Device and Headsets
The PIC32MX170F256B-V/SS targets USB audio thanks to its on-chip USB 2.0 Full-Speed Device/Host/OTG controller and dual I2S/SPI modules for connecting an audio DAC/ADC. The 64 KB SRAM buffers roughly 32-64 ms of 48 kHz 16-bit stereo audio, eliminating the need for external SRAM on simple USB headsets. The 50 MHz MIPS M4K core runs a full USB audio class 1.0 driver with 83 DMIPS headroom for audio processing. The 28-pin SSOP footprint fits inside a compact headset dongle, and the -V automotive temperature grade is overkill for consumer use but ensures robust behavior across harsh field environments.
おすすめ
Low-Cost Graphics Terminals
The PIC32MX170F256B-V/SS enables low-cost graphical HMI terminals using the on-chip Parallel Master Port (PMP) to drive small TFT displays up to QVGA resolution. The 256 KB Flash stores full Microchip Graphics Library primitives and a custom UI layer, while 64 KB SRAM provides a small frame buffer or relies on PMP bursts to external display RAM. The Peripheral Pin Select (PPS) matrix allows the 28-pin SSOP variant to route PMP data lines to the most PCB-layout-friendly pins. The automotive temperature range supports industrial cabinet displays in factories and outdoor signage; the 50 MHz core renders buttons and text at 30+ fps.
おすすめ
Industrial IoT Edge Devices
The PIC32MX170F256B-V/SS fits industrial IoT edge nodes because the 256 KB Flash runs TLS 1.2 handshake and an MQTT-SN client without external memory, and the 50 MHz MIPS M4K core handles 10-20 kHz sensor sampling with FFT preprocessing. The USB Full-Speed OTG enables local configuration via a USB stick, while UART/I2C/SPI connect to sensors and fieldbus transceivers. The AEC-Q100 -40C to +125C temperature grade is well above industrial requirements, allowing deployment in outdoor enclosures and unconditioned factory cabinets. The 64 KB SRAM supports small sensor data ring buffers, and PPS routes analog and digital peripherals to convenient pins.
おすすめ
Capacitive Touch Control Panels
The PIC32MX170F256B-V/SS drives capacitive touch panels via the on-chip mTouchTM sensing peripheral with hardware-driven scan logic and 1 ns time measurement for accurate proximity and touch detection. The 256 KB Flash fits full mTouch library plus custom UI logic, and 64 KB SRAM supports gesture recognition state machines without external memory. The -40C to +125C automotive temperature range tolerates cold-start automotive cabin controls and outdoor equipment panels. PPS remaps touch-pad IOs away from USB and I2S lines to keep PCB routing clean, and the 28-pin SSOP package fits behind the touch sensor PCB stack-up.
おすすめ
Educational and Maker Development Boards
The PIC32MX170F256B-V/SS supports beginner and advanced maker projects because the 256 KB Flash accommodates USB stack + bootloader + application, and the 50 MHz MIPS M4K core is fast enough for real-time graphics and audio demos. The 28-pin SSOP package is breadboard-friendly with adapters, and the Microchip MPLAB X IDE + XC32 compiler + Harmony framework are free. Open-source project examples such as the XORYA game console demonstrate that a USB-less game system with composite video is possible using just the PIC32MX170F256B plus a few passives. The PIC32MX150F128B-I/SS and PIC32MX170F256B-I/SS share the same toolchain for maker kits.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PIC32MX170F256B-V/SS — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | PIC32MX170F256B-I/SS | PIC32MX170F256B-V/SO | PIC32MX170F256B-V/ML | PIC32MX130F256B-I/SS | PIC32MX150F128B-I/SS | PIC32MM0256GPM028-I/SS |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin SSOP | 28-pin SSOP - same | 28-pin SOIC | 28-pin QFN (ML) | 28-pin SSOP - same | 28-pin SSOP - same | 28-pin SSOP - same |
| Core | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | PIC32MM (MIPS) |
| Max Frequency | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 25 MHz (-50%) |
| Flash | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 128 KB (-50%) | 256 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB (-50%) | 32 KB (-50%) |
| USB | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | No USB |
| I2S Modules | 2 | 2 | 2 | 2 | 0 (no I2S) | 2 | 1 |
| Operating Temperature | -40C to +125C (AEC-Q100) | -40C to +85C (industrial) | -40C to +125C (AEC-Q100) | -40C to +125C (AEC-Q100) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
主な差別化要因
- Largest memory in 28-pin PIC32MX1xx family with full peripheral set （vs PIC32MX150F128B-I/SS)
- Higher CPU frequency and richer peripheral integration than PIC32MM （vs PIC32MM0256GPM028-I/SS)
- Includes I2S/PMP peripheral set that PIC32MX130 lacks （vs PIC32MX130F256B-I/SS)
設計ノート
Decouple VDD/VSS with a 100 nF ceramic capacitor placed within 5 mm of the supply pins, plus a 4.7 uF to 10 uF bulk capacitor on the 3.3V rail. The VUSB pin (if used) requires its own 100 nF + 4.7 uF decoupling pair to keep USB signaling stable. Power-on reset (POR) requires VDD rise time under specific Microchip-specified thresholds - use an LDO with controlled soft-start (MCP1700 is a popular companion) to avoid unexpected resets on slow-rising rails.
Route the 28-pin SSOP package with a clearance of at least 0.2 mm between adjacent traces and a minimum trace width of 0.15 mm to keep the SSOP pin pitch (0.65 mm) manufacturable at low cost. Place the ICSP programming pins (PGED1/PGEC1 and PGED2/PGEC2) at convenient edge positions so a Tag-Connect or pogo-pin programming cable can attach during prototyping. Keep the crystal/oscillator traces short and symmetric, with a ground guard ring for noise immunity.
Do NOT skip the Peripheral Pin Select (PPS) configuration during firmware initialization - peripherals are not mapped to specific pins by default and the MCU will appear non-functional until PPS registers are set. The 256 KB Flash requires linker-file alignment for boot and application regions - use the Microchip Harmony Configurator or MPLAB X MCC to set up the memory map correctly. The USB module requires a 48 MHz USB clock derived from the 50 MHz system clock via the PLL - configure USB clock settings before enabling the USB module.
コンプライアンス情報
AEC-Q100 qualified per -V suffix. RoHS compliant per Microchip product page.
