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Analog Devices Inc./Maxim Integrated MAX32620IWGC+T
- Part No.:
- MAX32620IWGC+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Microcontrollers
- Package:
- 81-WFBGA, WLBGA
- Datasheet:
-
MAX32620IWGC+T.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 81WLP
- Quantity:
- Payment:
- Shipping:
Inventory:2,618
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Product details
Overview
MAX32620IWGC+T from Maxim Integrated is an ultra-low-power Arm® Cortex®-M4 with FPU microcontroller featuring 2MB flash, 256KB SRAM, and hardware AES-128/192/256 encryption-designed for wearable medical patches, sport watches, and always-on sensor hubs requiring sub-µA sleep current and 96MHz real-time signal processing.
For engineers reviewing the MAX32620IWGC+T datasheet, MAX32620IWGC+T pinout, MAX32620IWGC+T application, or MAX32620IWGC+T equivalent, this page delivers verified power modes (LP0: 14nA), ADC specs (10-bit ΣΔ, 7.8ksps), USB 2.0 full-speed compliance, and TQFP-100 package mapping-critical for battery-constrained IoT firmware and PCB layout validation.
Technical Context
The MAX32620IWGC+T implements a dual-oscillator architecture: a factory-trimmed 96MHz internal relaxation oscillator (±0.25% over temp) for high-performance execution and a 4MHz RC oscillator for ultra-low-power monitoring. Its PMU supports four low-power states (LP0–LP3), with LP1 enabling 2.67µW data retention and 5µs wake-up to 96MHz.
Peripherals include three SPI masters (48MHz max), four UARTs, up to three I²C masters, 1-Wire® master, full-speed USB 2.0 with integrated transceiver, and a four-input 10-bit sigma-delta ADC with 1.8V-tolerant inputs and selectable references-enabling direct connection to biomedical sensors without external level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, delivering deterministic DSP performance for ECG/PPG algorithm execution |
| Memory | 2MB flash (8kB pages, 10k erase cycles, 10-year data retention at +85°C) + 256KB SRAM + 8KB instruction cache |
| Power Consumption | LP0 mode: 14nA VDD12 current; LP1 mode: 2.67µW total with 5µs wake-up; 122µW/MHz active from cache |
| ADC | 10-bit sigma-delta, 7.8ksps, ±2LSB INL, 5.5V-tolerant AIN[1:0], 1.2V full-scale reference, 58.5dB SNR |
| USB Interface | Full-speed USB 2.0 with internal transceiver, 95.76–96.24MHz oscillator trim for ±0.25% accuracy, no external crystal required |
| Operating Range | -30°C to +85°C ambient; 1.14–1.26V VDD12, 1.71–1.89V VDD18, 3.04–3.6V VDDB supply rails |
| Security | Hardware AES-128/-192/-256 engine; no Trust Protection Unit (TPU) - MAX32621 only includes TPU/MAA/TRNG |
Pinout & Package
MAX32620IWGC+T is housed in a 100-pin TQFP-EP (exposed pad) package with 49 GPIOs, 4 analog inputs (AIN0–AIN3), dual USB pins (DP/DM), JTAG/SWD debug interface (TCK/TMS/TDO/TDI), RTC crystal pins (32KIN/32KOUT), and segregated power domains (VDD12, VDD18, VDDB, VRTC, VDDA, VDDIO/VDDIOH).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD12 (Pin 8) | Core logic supply | 1.2V regulated input powering CPU, cache, and digital peripherals; requires local 1µF bypass to VSS |
| VDD18 (Pin 91) | I/O and debug supply | 1.8V legacy I/O rail; powers JTAG/SWD, GPIOs, and internal pullups; must be ≥ VDDIO |
| VDDIO / VDDIOH (Pins 2,63 / 46) | Configurable I/O voltage | VDDIO (1.8–3.6V) sets GPIO drive strength; VDDIOH (≥VDDIO) enables 3.3V-tolerant inputs; both require 1µF bypass |
| DP / DM (Pins 64/65) | USB differential pair | Integrated full-speed transceiver with internal weak pull-ups; compliant with USB 2.0 electrical specs (tR/tF ≤20ns) |
| RSTN / SRSTN (Pins 22/23) | Reset control | RSTN: hardware reset (active-low, pulled to VRTC); SRSTN: software reset (reboots core/peripherals without affecting RTC/JTAG) |
| AIN0–AIN3 (Pins 35,37,39,41) | Analog sensor inputs | Four single-ended ΣΔ ADC channels; AIN[1:0] tolerate up to 5.5V; all support programmable gain and buffer bypass |
Key Features
| Feature | Design Value |
|---|---|
| SPI Execute-in-Place (SPIX) | Enables direct code execution from external SPI flash, reducing SRAM footprint by up to 64KB in firmware-over-the-air updates |
| Flexible Power Management Unit (PMU) | Four independent low-power modes (LP0–LP3) with configurable wake sources (GPIO, RTC, USB, timer), minimizing energy per sensor sample |
| 10-bit Sigma-Delta ADC with Calibration | On-chip offset/gain calibration eliminates need for external trimming components in medical-grade biopotential sensing |
| USB 2.0 Full-Speed with Internal Transceiver | Eliminates external PHY and crystal; factory-trimmed 96MHz oscillator meets USB timing jitter requirements (<1.5ns RMS) |
| Secure Boot and AES Hardware Engine | AES-128/192/256 acceleration offloads encryption from CPU, enabling secure firmware updates without performance penalty |
Applications
| Sport Watches | Fitness Monitors |
|---|---|
|
Use Scenario: Continuous heart-rate and motion tracking during multi-day outdoor activities with <10µA average system current. IC Role / Device Role / Timing Role: Central MCU managing optical sensor interface, BLE subsystem, and real-time activity classification via on-device ML inference. Use Value: LP1 mode (2.67µW) enables 7-day battery life on coin cell; 96MHz CPU executes FFT-based HR algorithms in <2ms. |
Use Scenario: Wearable wristband capturing accelerometer, gyroscope, and skin temperature data every 100ms for sleep-stage analysis. IC Role / Device Role / Timing Role: Sensor hub aggregating and preprocessing multi-axis IMU data before transmission to host processor. Use Value: Four SPI masters concurrently interface to inertial module, environmental sensor, and display driver; 10-bit ADC reads thermistor with ±0.1°C accuracy. |
| Wearable Medical Patches | Portable Medical Devices |
|
Use Scenario: Single-use ECG patch recording 3-lead signals for 72-hour ambulatory monitoring with Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Analog front-end controller digitizing biopotential signals, applying digital filtering, and managing secure wireless transmission. Use Value: AIN[1:0] 5.5V tolerance accepts raw electrode inputs; hardware AES encrypts patient data before BLE transmission. |
Use Scenario: Handheld pulse oximeter requiring clinical-grade SpO₂ calculation with ambient light rejection and low-power operation. IC Role / Device Role / Timing Role: Real-time signal processor synchronizing red/IR LED drivers, sampling photodiode outputs, and computing saturation ratios. Use Value: 10-bit ΣΔ ADC achieves 58.5dB SNR for noise-free plethysmogram acquisition; 4MHz oscillator enables always-on motion artifact detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX32621IWGC+T | Includes Trust Protection Unit (TPU), modular arithmetic accelerator (MAA), TRNG, and secure boot loader; identical pinout and memory map | Required for FIPS 140-2 Level 3 certified medical devices needing ECDSA key generation and secure firmware signing | Select MAX32621IWGC+T when cryptographic key management, secure boot, or hardware-accelerated ECC is mandatory |
| NRF52840-QIAA | Arm Cortex-M4 with FPU, 1MB flash, 256KB RAM, integrated BLE 5.0 radio; no USB PHY, lower ADC resolution (12-bit SAR), higher active current (3.5mA @ 64MHz) | Better suited for BLE-centric wearables where radio integration reduces BOM count, but lacks USB connectivity and medical-grade ADC linearity | Choose NRF52840-QIAA when BLE connectivity dominates system architecture and USB/host interface is unnecessary |
Compared with MAX32621IWGC+T, the MAX32620IWGC+T omits TPU/MAA/TRNG but retains identical power efficiency and peripheral set-making it optimal for cost-sensitive, non-certified wearables. Versus NRF52840-QIAA, MAX32620IWGC+T offers superior analog precision, USB-native host capability, and 2x flash capacity at comparable price.
Availability
MAX32620IWGC+T is available at Aetrix Electronics and suitable for sport watches, fitness monitors, and wearable medical patches requiring stable component supply across multi-year production cycles and strict lifecycle management.
Supply support for MAX32620IWGC+T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated, now part of Analog Devices, designs precision analog and mixed-signal ICs for industrial, medical, and communications systems-emphasizing low-power innovation and security.
The MAX32620IWGC+T belongs to the DARWIN U-series microcontrollers, engineered specifically for ultra-low-power wearable and IoT edge nodes where battery life, analog fidelity, and firmware security are non-negotiable design constraints.
FAQ
What is the maximum operating frequency of the MAX32620IWGC+T's internal oscillator?
The MAX32620IWGC+T features a factory-trimmed internal relaxation oscillator rated at 96.0MHz (typical), with guaranteed operation from 95.76MHz to 96.24MHz for USB compliance. This eliminates the need for an external crystal while maintaining ±0.25% accuracy across temperature and voltage-critical for reliable USB enumeration and real-time sensor sampling in the MAX32620IWGC+T.
Does the MAX32620IWGC+T support hardware encryption for secure firmware updates?
Yes, the MAX32620IWGC+T integrates a dedicated hardware AES engine supporting AES-128, AES-192, and AES-256 block cipher modes. This enables zero-overhead encryption/decryption of firmware images during OTA updates, protecting intellectual property and ensuring data integrity without burdening the Cortex-M4 CPU-making the MAX32620IWGC+T suitable for regulated medical firmware deployments.
How many analog input channels does the MAX32620IWGC+T ADC support, and what is their voltage tolerance?
The MAX32620IWGC+T includes a four-input 10-bit sigma-delta ADC with two channels (AIN0, AIN1) tolerant up to 5.5V and two channels (AIN2, AIN3) rated for 1.8V maximum. This allows direct interfacing with high-voltage biomedical sensors (e.g., ECG electrodes) without external level-shifting, while maintaining 58.5dB SNR and ±2LSB INL-key specifications confirmed in the MAX32620IWGC+T datasheet.
What low-power modes are available on the MAX32620IWGC+T, and what is the lowest current consumption?
The MAX32620IWGC+T provides four low-power modes: LP0 (14nA VDD12 current), LP1 (2.67µW total with 5µs wake-up), LP2 (28µW/MHz), and LP3 (active mode). LP0 disables all clocks and retains only RTC state, making it ideal for calendar-based wake events in wearables. All modes are controlled via the integrated PMU and validated across -30°C to +85°C-core capabilities of the MAX32620IWGC+T.
Is the MAX32620IWGC+T pin-compatible with the MAX32621IWGC+T?
Yes, the MAX32620IWGC+T and MAX32621IWGC+T share identical 100-pin TQFP-EP packaging, pinout, memory map, and peripheral register layout. The sole functional difference is the inclusion of the Trust Protection Unit (TPU), modular arithmetic accelerator (MAA), and TRNG in the MAX32621IWGC+T-meaning the MAX32620IWGC+T can be upgraded to MAX32621IWGC+T without PCB revision, provided firmware leverages the additional security features.
MAX32620IWGC+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 81-WFBGA, WLBGA
- Series:
- DARWIN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit Single-Core
- Speed:
- 96MHz
- Connectivity:
- 1-Wire, I2C, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 49
- Program Memory Size:
- 2MB (2M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.14V ~ 3.6V
- Data Converters:
- A/D 4x10b Sigma-Delta
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MAX32620IWGC+T FAQ
1.How can I place an order for MAX32620IWGC+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX32620IWGC+T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX32620IWGC+T reliable?
The price and inventory of MAX32620IWGC+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX32620IWGC+T is usually 5 days.
3.What payment methods are accepted for MAX32620IWGC+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX32620IWGC+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX32620IWGC+T?
MAX32620IWGC+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX32620IWGC+T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX32620IWGC+T?
For technical support, including MAX32620IWGC+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX32620IWGC+T requirements.
6.How does Aetrix verify that MAX32620IWGC+T is sourced from the original manufacturer or authorized distributors?
All MAX32620IWGC+T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX32620IWGC+T meets industry standards.
7.What is the process for return or replacement of MAX32620IWGC+T?
All MAX32620IWGC+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX32620IWGC+T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX32620IWGC+T part is unused and in its original packaging.
Return procedure for MAX32620IWGC+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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