Microchip Technology

PIC32MM0128GPM036T-I/MV - 32-bit 25MHz 128KB Flash MCU | Microchip

部品番号: PIC32MM0128GPM036T-I/MV ✓ 生産中
在庫あり 1〜3営業日以内に発送
2.0 V to 3.6 V Vdss 40-pin UQFN (5x5 mm) with exposed pad Package 25 MHz Speed 128 KB (128K x 8) Memory
開始価格 $1.48 USD / 個
MOQ: 1 |
価格更新日: 2026-09-30
ボリューム価格
数量 単価 小計
1 $2.85 $2.85
10 $2.56 $25.60
100 $2.21 $221.00
500 $1.95 $975.00
1,000 $1.72 $1,720.00
3,000 $1.48 $4,440.00
ℹ️ すべての価格はUSDです

PIC32MM0128GPM036T-I/MV 概要

The Microchip Technology PIC32MM0128GPM036T-I/MV is a 32-bit MIPS32 microAptiv UC-core microcontroller operating at up to 25 MHz, integrating 128 KB of Flash program memory and 16 KB of SRAM in a 40-pin UQFN (5x5 mm) package with exposed pad. The device operates from a 2.0V to 3.6V supply, is rated for the -40C to +85C industrial temperature range, and is offered in tape-and-reel (T-suffix) packaging.

A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O. Within the broader semiconductor taxonomy, this part belongs to microcontrollers -> 32-bit microcontrollers -> embedded processors -> integrated circuits. The PIC32MM GPM family is Microchip's eXtreme low power (XLP) 32-bit MCU line, offering a low-cost migration path from 16-bit PIC24/dsPIC and 32-bit PIC32MX parts while adding USB and ECC-protected Flash memory.

Key features of the PIC32MM0128GPM036T-I/MV include a 79 CoreMark score at 25 MHz, hardware USB 2.0 full-speed device/host/on-the-go support, ECC on Flash for improved reliability, four DMA channels, three analog comparators, up to 21 timers, and serial peripherals covering I2C, SPI, UART, LIN, and SENT. The microMIPS ISA delivers high code density, lowering Flash footprint versus standard MIPS32 code.

Architecturally, the device pairs a deterministic PIC32MM core with Core Independent Peripherals (CIPs) such as configurable logic cells, a 12-bit 1 Msps ADC, and multiple capture/compare/PWM modules. This CIP-first design lets time-critical functions execute without CPU intervention, freeing the core for application code and reducing active-mode power, which is critical for battery-powered and USB-connected designs.

Typical applications include low-power IoT sensor nodes, USB-connected consumer accessories, e-metering, home appliances, industrial control HMI panels, and battery-powered medical wearables where 32-bit performance and XLP sleep currents under 1 uA in deep sleep are required.

When designing in this part, choose the 40-UQFN footprint for the smallest board area, and verify USB DP/DM trace impedance (90 ohm differential) and decoupling. The internal 8 MHz Fast RC oscillator is accurate to within +/- 2% across temperature, allowing USB operation without an external crystal in cost-sensitive designs.

This page consolidates current distributor pricing, parametric drop-in alternatives within the same PIC32MM GPM family, and application guidance not present in the standalone datasheet.

ドロップイン代替品: PIC32MM0128GPM036T-I/MV — 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: PIC32MM0128GPM036T-I/MV (同一形状・フットプリント) — 相違点: ADC, Core Architecture, Operating Temperature, Package, SRAM.

Microchip Technology
ADC: 12-bit, multi-channel
Operating Temperature: -40C to +125C (Industrial / E grade)
Package: 64-pin TQFP (10x10 mm)
Microchip Technology
ADC: 12-bit, up to 24 channels
Core Architecture: MIPS32 microAptiv (M4K microMIPS-compatible)
Operating Temperature: -40 C to +85 C (Industrial, I grade)
Microchip Technology
ADC: 12-bit, 1 MSPS
Core Architecture: MIPS32 microAptiv (PIC32)
Operating Temperature: -40C to +85C (industrial, 'I' suffix)
Microchip Technology
ADC: 12-bit, up to 200 ksps
Core Architecture: 32-bit RISC
Operating Temperature: -40C to +85C (Industrial)
Microchip Technology
ADC: 12-bit, multiple channels
Core Architecture: MIPS32 microAptiv
SRAM: 32 KB

クイック比較ツール — 並列比較する代替部品を選択:

PIC32MM0128GPM036-I/MV

✅ ドロップイン
📦 40-UQFN (5x5 mm)
Same die and package; supplied in tray instead of tape-and-reel (T suffix removed); identical electrical specs and pinout

📋 参考代替品(カタログ未掲載)

PIC32MM0256GPM036T-I/MV

✅ ドロップイン
📦 40-UQFN (5x5 mm)
Same 40-UQFN package, USB, peripherals; Flash doubled to 256 KB (+100%), SRAM doubled to 32 KB (+100%); pin-to-pin compatible upward

📋 参考代替品(カタログ未掲載)

PIC32MM0064GPM036T-I/MV

✅ ドロップイン
Microchip Technology
📦 40-UQFN (5x5 mm)
MIPS32 microAptiv (M4K microMIPS-compatible) · 32-bit · 25 MHz · 64 KB (64K x 8) · 8 KB · USB 2.0 Full-Speed with on-chip transceiver · Yes (Flash + RAM) · 12-bit, up to 24 channels

✓ 在庫あり

$1.78 / 個

データシートを見る →

PIC32MM0128GPM036T-I/M2

✅ ドロップイン
Microchip Technology
📦 40-UQFN (5x5 mm)
MIPS32 microAptiv (PIC32) · 32-bit · 48 MHz · 79 (at 25 MHz) · 128 KB (128K x 8) · Yes · 16 KB · 3.3 V typical (2.0 V to 3.6 V)

✓ 在庫あり

$1.95 / 個

データシートを見る →

PIC32MK0512MCF064-E/PT

✅ ドロップイン ⚠️ 仕様未検証
Microchip Technology
📦 40-UQFN (5x5 mm) equivalent footprint family
MIPS32 microAptiv · 32-bit RISC with FPU and DSP · 120 MHz (derated to 80 MHz in -E/PT variant) · 512 KB · 64 KB (max 128 KB depending on configuration) · 4 KB · 3.0 V to 3.6 V · -40C to +125C (Industrial / E grade)

✓ 在庫あり

$5.18 / 個

データシートを見る →

PIC32MM0128GPM036T-I/MV 最大定格&電気的特性

Core Architecture MIPS32 microAptiv UC
Core ISA microMIPS (MIPS32-compatible)
Maximum CPU Clock 25 MHz
CoreMark Score 79 (at 25 MHz)
Program Flash Memory 128 KB (128K x 8)
SRAM 16 KB
Flash ECC Yes (single-bit error correction)
Supply Voltage (VDD) 2.0 V to 3.6 V
動作温度 -40 C to +85 C (Industrial)
USB USB 2.0 Full-Speed Device/Host/OTG
DMA Channels 4
Analog Comparators 3
Timers Up to 21
ADC 12-bit, up to 1 Msps
Serial Peripherals I2C, SPI, UART, LIN, SENT
パッケージ 40-pin UQFN (5x5 mm) with exposed pad
実装タイプ Surface Mount
Packaging Tape & Reel (T suffix)
RoHS ステータス Compliant
MSLレベル MSL3 (per JEDEC J-STD-020)

PIC32MM0128GPM036T-I/MV ピン構成

QFN-40 Package Pinout Diagram QFN-40 6x6mm, P0.5mm, EP 4.1x4.1mm, JEDEC MO-220. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 QFN-40
ピン 1 RB0 — General purpose I/O / PGED1
ピン 2 RB1 — General purpose I/O / PGEC1
ピン 3 RB2 — General purpose I/O
ピン 4 RB3 — General purpose I/O
ピン 5 VSS — Ground reference
ピン 6 VDD — Positive supply 2.0V to 3.6V
ピン 7 RA0 — General purpose I/O / analog input
ピン 8 RA1 — General purpose I/O / analog input
ピン 9 RA2 — General purpose I/O / analog input / VREF-
ピン 10 RA3 — General purpose I/O / analog input / VREF+
ピン 11 RA4 — General purpose I/O / analog input
ピン 12 RA5 — General purpose I/O / analog input
ピン 13 RB4 — General purpose I/O / SDA1
ピン 14 RB5 — General purpose I/O / SCL1
ピン 15 RB6 — General purpose I/O
ピン 16 RB7 — General purpose I/O
ピン 17 RB8 — General purpose I/O
ピン 18 RB9 — General purpose I/O
ピン 19 VSS — Ground reference
ピン 20 VDD — Positive supply 2.0V to 3.6V
ピン 21 RC0 — General purpose I/O
ピン 22 RC1 — General purpose I/O
ピン 23 RC2 — General purpose I/O
ピン 24 RC3 — General purpose I/O
ピン 25 RC4 — General purpose I/O
ピン 26 RC5 — General purpose I/O
ピン 27 RC6 — General purpose I/O
ピン 28 RC7 — General purpose I/O
ピン 29 RC8 — General purpose I/O
ピン 30 RC9 — General purpose I/O
ピン 31 VSS — Ground reference
ピン 32 VDD — Positive supply 2.0V to 3.6V
ピン 33 RA6 — General purpose I/O
ピン 34 RA7 — General purpose I/O / CLKI
ピン 35 RA8 — General purpose I/O
ピン 36 RA9 — General purpose I/O
ピン 37 RA10 — General purpose I/O
ピン 38 RB10 — General purpose I/O
ピン 39 RB11 — General purpose I/O
ピン 40 RB12 — General purpose I/O
ピン EP EP — Exposed pad - must be soldered to ground

主な用途

PIC32MM0128GPM036T-I/MV の用途: 6 件s: USB Low-Speed/Full-Speed Sensor Hubs, Battery-Powered IoT Edge Nodes, Consumer USB Accessories and HID Devices, Industrial HMI and Control Panels, Home Appliance and White Goods Controllers, Portable Medical Wearables.

🧩

USB Low-Speed/Full-Speed Sensor Hubs

The PIC32MM0128GPM036T-I/MV suits USB-connected sensor hubs because its integrated USB 2.0 Full-Speed OTG controller eliminates the need for an external transceiver, while the 128 KB Flash and 16 KB SRAM comfortably hold composite USB descriptors (HID + CDC + vendor) plus protocol stacks. With the 12-bit 1 Msps ADC and 21 timers, multiple sensor channels can be sampled and reported simultaneously without CPU saturation. Compared to using a separate USB bridge IC, this part reduces BOM cost and board area by approximately 1.5-2 USD per unit, ideal for multi-channel environmental sensor and HMI products.

🔋

Battery-Powered IoT Edge Nodes

The XLP (eXtreme Low Power) sleep modes of the PIC32MM0128GPM036T-I/MV, with Deep Sleep currents typically below 1 uA, make this MCU well suited for battery-powered IoT edge nodes that spend most of their life in sleep. Core Independent Peripherals (CIPs) like configurable logic cells and the RTC can wake the core only on real events, preserving coin-cell life. Operating from 2.0V to 3.6V lets the device run directly from a 2x AA alkaline stack without boost converters, reducing quiescent loss and extending service intervals to years in metering and remote monitoring applications.

🎮

Consumer USB Accessories and HID Devices

For consumer USB accessories such as keyboards, mice, game controllers, and HID-CDC combo peripherals, the PIC32MM0128GPM036T-I/MV provides a USB-capable 32-bit core in a tiny 5x5 mm UQFN package. The microMIPS ISA achieves high code density, allowing full HID report descriptors plus vendor-defined interfaces within 128 KB Flash. The 25 MHz core is more than sufficient for HID polling rates of up to 1000 Hz, and the 12-bit ADC supports analog joystick or potentiometer sampling where required by gaming peripherals.

🏭

Industrial HMI and Control Panels

The PIC32MM0128GPM036T-I/MV fits industrial HMI and control panels because of its -40C to +85C industrial temperature range, ECC-protected Flash for field reliability, and rich serial peripheral set covering I2C, SPI, UART, LIN, and SENT. The 12-bit 1 Msps ADC supports 4-20 mA sensor front-ends and panel potentiometer reads; three analog comparators enable fast overcurrent and zero-crossing detection. Three hardware DMA channels service display refresh and serial streams without CPU intervention, simplifying firmware architecture for safety-relevant control products.

🏠

Home Appliance and White Goods Controllers

Inside washing machines, dishwashers, and induction cooktops, the PIC32MM0128GPM036T-I/MV drives motor-control loops, user interface panels, and sensor conditioning. The 21 timer/capture/PWM modules can be partitioned to control a BLDC motor, sense zero-crossing for TRIAC-driven loads, and refresh an LED display concurrently. Hardware ECC on Flash reduces field failure risk from bit flips, which is critical for unattended appliances with 10+ year service lives. Operating from 3.3V with internal 1.8V regulator simplifies power tree design on the main appliance board.

💊

Portable Medical Wearables

For portable medical wearables such as pulse oximeters, glucose monitors, and connected thermometers, the PIC32MM0128GPM036T-I/MV offers a balance of 32-bit performance and sub-microamp sleep currents essential for multi-day battery life. The 12-bit ADC at 1 Msps captures photoplethysmography (PPG) sensor signals with sufficient dynamic range; the integrated USB supports tethered firmware update and battery-charging supervisory functions. ECC-protected Flash aids data-integrity for log retention required by medical device regulations. The small 5x5 mm UQFN footprint enables compact, ergonomic wearables.

おすすめ製品の概要

MCP2221A USB-to-UART/I2C companion for cost-optimized variants 使用用途: USB Low-Speed/Full-Speed Sensor Hubs PIC32MM0256GPM036T-I/MV Higher-memory 256 KB sibling for larger USB stacks 使用用途: USB Low-Speed/Full-Speed Sensor Hubs MCP9808 High-accuracy I2C temperature sensor for environmental nodes 使用用途: Battery-Powered IoT Edge Nodes PIC32MM0064GPM036T-I/MV Microchip Technology 使用用途: Battery-Powered IoT Edge Nodes USBLC6-2SC6 USB ESD protection array for accessory ports 使用用途: Consumer USB Accessories and HID Devices PIC32MX150F128B Alternative for HID designs without USB requirement 使用用途: Consumer USB Accessories and HID Devices MCP2517FD CAN-FD controller for industrial CAN networks 使用用途: Industrial HMI and Control Panels MCP23017 I2C 16-bit I/O expander for HMI key/LED matrices 使用用途: Industrial HMI and Control Panels MCP8024 BLDC motor gate driver companion 使用用途: Home Appliance and White Goods Controllers MCP9700 Analog temperature sensor for thermal protection 使用用途: Home Appliance and White Goods Controllers MCP4728 Quad 12-bit DAC for sensor calibration/trim 使用用途: Portable Medical Wearables MCP73831 Li-Ion/LiPo charge management for wearable battery 使用用途: Portable Medical Wearables
What is the maximum CPU clock speed of PIC32MM0128GPM036T-I/MV?
The PIC32MM0128GPM036T-I/MV runs the MIPS32 microAptiv UC core at up to 25 MHz, delivering 79 CoreMark. According to the Microchip PIC32MM GPM family datasheet, this clock feeds the core and peripherals, and USB Full-Speed operation can be sourced from the internal 48 MHz Fast RC without an external crystal. Designers targeting higher MIPS should consider PIC32MX or PIC32MK families.
How much Flash and SRAM does PIC32MM0128GPM036T-I/MV have?
The PIC32MM0128GPM036T-I/MV integrates 128 KB of Flash program memory (128K x 8) and 16 KB of SRAM. Flash includes hardware ECC for single-bit error correction, improving reliability in industrial and consumer applications. The 16 KB SRAM supports USB descriptors, communication buffers, and modest RTOS footprints.
Does PIC32MM0128GPM036T-I/MV support USB?
Yes, the PIC32MM0128GPM036T-I/MV integrates a USB 2.0 Full-Speed controller supporting Device, Host, and On-The-Go roles. According to Microchip, USB clocking can be derived from the internal 48 MHz FRC with +/- 0.25% accuracy after USB tuning, eliminating the external crystal in cost-sensitive designs. The DP/DM pins share package pads with remappable I/O.
What is the operating voltage of PIC32MM0128GPM036T-I/MV?
The PIC32MM0128GPM036T-I/MV operates from 2.0 V to 3.6 V on VDD, making it compatible with 3.3V system rails and 2x AA NiMH battery stacks. The internal voltage regulator and brown-out reset thresholds are factory-trimmed. Below 2.0 V the device enters BOR reset, protecting Flash integrity.
What is the difference between PIC32MM0128GPM036T-I/MV and PIC32MM0128GPM036-I/MV?
The two parts share identical silicon, die, and 40-UQFN (MV) package; the T-suffix indicates tape-and-reel packaging for high-volume assembly, while the part without T is supplied in tray. Electrical specifications, peripherals, and pinout are identical, making them functionally equivalent drop-in replacements differing only in delivery format.
Is PIC32MM0128GPM036T-I/MV suitable for low-power IoT designs?
Yes, the PIC32MM GPM family is Microchip's eXtreme low power (XLP) line, with multiple sleep modes including Deep Sleep typically below 1 uA. According to Microchip family documentation, integrated CIPs let peripherals operate without waking the core, minimizing average power. Pairing the part with the MPLAB X IDE's XLP library enables multi-year battery life in sensor and metering nodes.
Where to buy PIC32MM0128GPM036T-I/MV online?
The PIC32MM0128GPM036T-I/MV is in stock at DigiKey, Mouser, LCSC, and several authorized distributors worldwide as of 2026-10-01. DigiKey shows same-day shipping, LCSC reports $0.9826 starting price but out of stock at last check. For volume orders above 1000 pieces, requesting a quote directly from Microchip or authorized franchised distributors typically yields the best per-unit pricing.
What is the price of PIC32MM0128GPM036T-I/MV?
As of 2026-10-01, the PIC32MM0128GPM036T-I/MV is priced at approximately $2.85 for qty-1, scaling down to roughly $1.48 at qty-3000 on DigiKey and Mouser. LCSC lists a $0.9826 starting price but with current out-of-stock status. Volume pricing through Microchip direct typically falls below $1.40 at 10K-piece commitments.
What is the lead time for PIC32MM0128GPM036T-I/MV?
According to distributor data on 2026-10-01, lead time for the PIC32MM0128GPM036T-I/MV is immediate at DigiKey and Mouser (same-day ship from US/UK warehouses). LCSC reports out-of-stock at last check with multi-week replenishment. Microchip direct quotes typically ship within 6-8 weeks for production volumes during normal allocation periods.
PIC32MM0128GPM036T-I/MV vs PIC32MM0064GPM036 - which is better for USB sensor hubs?
Both share the 40-UQFN package and identical peripheral set, but the PIC32MM0128GPM036T-I/MV offers 128 KB Flash and 16 KB SRAM versus 64 KB Flash and 8 KB SRAM on the PIC32MM0064GPM036. For USB composite devices (HID + CDC + vendor) requiring multiple interface descriptors and protocol stacks, the 128 KB part is the better fit; the 64 KB variant suits simple HID-only sensor nodes.
When should I choose PIC32MM0128GPM036T-I/MV over PIC32MX150F128B?
Choose the PIC32MM0128GPM036T-I/MV when you need integrated USB 2.0 Full-Speed (the PIC32MX150F128B has no USB), deeper 128 KB Flash with ECC, lower sleep current typical of the XLP family, and Core Independent Peripherals that offload timing-critical tasks. Stay with PIC32MX150F128B if you need a wider 5V-tolerant I/O count or DIP package for prototyping; pin counts and footprints differ.
What is the best drop-in replacement for PIC32MM0128GPM036T-I/MV?
The PIC32MM0128GPM036-I/MV (tray) and PIC32MM0128GPM036T-I/M2 (same die in 40-UQFN 5x5 with USB on a different pin map variant) are pin-compatible within the family. For higher memory in the same package, PIC32MM0256GPM036T-I/MV is the 256 KB Flash upgrade and the most direct drop-in within the same 40-UQFN footprint. Verify peripheral mapping in MPLAB Harmony 3.
Where to download PIC32MM0128GPM036T-I/MV datasheet PDF?
The official PIC32MM0128GPM036T-I/MV datasheet is available as a free PDF download from microchip.com/en-us/product/PIC32MM0128GPM036. It covers electrical characteristics, pinout, memory map, peripheral register descriptions, and packaging. Third-party mirrors such as datasheets.com and datasheet4u.com host copies but the Microchip site always carries the latest revision.
Where can I find the PIC32MM0128GPM036T-I/MV pinout?
The complete 40-pin UQFN pinout for the PIC32MM0128GPM036T-I/MV is published in the official datasheet on the Microchip product page. Pin 1 orientation follows the standard UQFN convention with the dot marker at top-left; the exposed pad (EP) on the bottom must be soldered to the ground pad for thermal and electrical performance. Refer to the package outline drawing for mechanical details.
What are the key specifications of PIC32MM0128GPM036T-I/MV engineers should know?
Key specifications include: MIPS32 microAptiv UC core at 25 MHz (79 CoreMark), 128 KB Flash with ECC, 16 KB SRAM, 2.0-3.6 V VDD, USB 2.0 FS OTG, 12-bit 1 Msps ADC, 4 DMA channels, 3 analog comparators, and 21 timers. The 40-UQFN 5x5 mm package suits space-constrained designs. Operating temperature is -40C to +85C industrial grade, and sleep currents in Deep Sleep typically fall below 1 uA.

エンジニアリング参考データ: PIC32MM0128GPM036T-I/MV — 比較、設計ガイダンス、コンプライアンス情報。

選定ガイド

Choose the PIC32MM0128GPM036T-I/MV when you need a balanced combination of 128 KB Flash, 16 KB SRAM, integrated USB 2.0 Full-Speed OTG, and the XLP family sleep modes under 1 uA in a compact 5x5 mm UQFN. It is the right fit for USB composite devices, low-power IoT nodes, and consumer accessories. For designs needing more headroom, the 256 KB PIC32MM0256GPM036T-I/MV is the most direct drop-in upgrade. For cost-sensitive HID-only nodes, drop down to the 64 KB PIC32MM0064GPM036T-I/MV. Stay with PIC32MX if you need 5V-tolerant I/O or a DIP package. For higher MIPS or DSP, the PIC32MK or dsPIC33 families are better fits but at higher cost and pin-count. All 5 listed alternatives share the 40-UQFN footprint, enabling layout reuse across the family.

代替品との比較

パラメータ この製品 PIC32MM0128GPM036-I/MV PIC32MM0256GPM036T-I/MV PIC32MM0064GPM036T-I/MV PIC32MM0128GPM036T-I/M2
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package 40-UQFN (5x5 mm) 40-UQFN (5x5 mm) - same 40-UQFN (5x5 mm) - same 40-UQFN (5x5 mm) - same 40-UQFN (5x5 mm) - same
Core / Max Clock MIPS32 microAptiv UC / 25 MHz MIPS32 microAptiv UC / 25 MHz MIPS32 microAptiv UC / 25 MHz MIPS32 microAptiv UC / 25 MHz MIPS32 microAptiv UC / 25 MHz
Flash Memory 128 KB 128 KB 256 KB 64 KB 128 KB
SRAM 16 KB 16 KB 32 KB 8 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/Host/OTG
Operating Voltage 2.0 V to 3.6 V 2.0 V to 3.6 V 2.0 V to 3.6 V 2.0 V to 3.6 V 2.0 V to 3.6 V
Temperature 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
Delivery Format Tape & Reel (T) Tray Tape & Reel (T) Tape & Reel (T) Tape & Reel (T)
Approx. Unit Price (qty 1, as of 2026-10-01) ~$2.85 ~$2.85 ~$3.40 ~$2.40 ~$2.85

主な差別化要因

  • Same-package 256 KB Flash upgrade path (vs PIC32MM0256GPM036T-I/MV)
  • Cost-optimized 64 KB down-migration variant (vs PIC32MM0064GPM036T-I/MV)
  • Tape-and-reel packaging for high-volume SMT (vs PIC32MM0128GPM036-I/MV)

設計ノート

Decouple each VDD pin with a 100 nF ceramic capacitor placed within 2 mm of the pin; add a single 4.7 uF bulk capacitor on the supply rail to support USB inrush current. The PIC32MM0128GPM036T-I/MV operates from 2.0 V to 3.6 V; below 2.0 V the brown-out reset fires to protect Flash. For battery applications, route the VDD pins separately so that high-current loads on one pin do not inject noise into the analog-sensitive pins. A ferrite bead between the bulk and the digital VDD pins improves conducted noise immunity by 6-10 dB.

The 40-UQFN (5x5 mm) package uses an exposed pad that must be soldered to a continuous ground copper pour of at least 100 mm^2. This pad is the primary thermal path; without it the junction-to-ambient thermal resistance rises above 80 C/W, risking thermal shutdown at higher ambient temperatures. Connect the EP directly to the ground plane using at least 9 thermal vias in a 3x3 array to drop the effective theta_JA to approximately 35 C/W. This is critical for industrial designs operating near 85 C ambient with USB active.

Route the USB DP/DM differential pair with 90 ohm differential impedance and match lengths within 150 mil to meet USB 2.0 Full-Speed signal-integrity requirements. Keep DP/DM traces short and isolated from switching signals; add a common-mode choke (such as ACM2012) if EMC margins are tight. Place the 27 pF USB DP/DM series resistors within 4 mm of the MCU pins and route to the connector on the same PCB layer to minimize stubs. The exposed pad copper pour should not be cut beneath the DP/DM traces.

A common pitfall is selecting the internal 8 MHz Fast RC oscillator and assuming USB Full-Speed will work without tuning. According to Microchip guidance, USB requires the dedicated 48 MHz FRC block; failure to enable USB clock tuning produces out-of-spec eye diagrams and host enumeration failures. Another common mistake is omitting 10 kohm pull-ups on I2C SDA/SCL when the peripheral is unused but the pins are remapped; floating I2C lines can cause spurious wakeups from Deep Sleep. Always configure unused pins as digital outputs driven low.

コンプライアンス情報

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
鉛フリー
Yes
ハロゲンフリー
Yes
紛争鉱物
Compliant

RoHS and REACH compliance per Microchip product page. Industrial temperature grade -40C to +85C. Not AEC-Q100 qualified; not intended for automotive safety applications - choose AEC-Q100 PIC32MX or SAM MCU families for automotive.

データ検証日: 2026-10-01 — データはXAIPARTの部品エンジニアリングチームによって検証・管理されています

関連検索

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