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Analog Devices Inc./Maxim Integrated MAX32620IWGL+T
- Part No.:
- MAX32620IWGL+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Microcontrollers
- Package:
- 81-WFBGA, WLBGA
- Datasheet:
-
MAX32620IWGL+T.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 81WLP
- Quantity:
- Payment:
- Shipping:
Inventory:1,114
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Product details
Overview
MAX32620IWGL+T from Maxim Integrated is an ultra-low-power Arm® Cortex®-M4 with FPU microcontroller designed for wearable and IoT edge devices. It features 2MB flash, 256KB SRAM, 96MHz/4MHz dual-frequency internal oscillator, hardware AES-128/-192/-256 engine, and a 10-bit sigma-delta ADC operating at 7.8kS/s - enabling continuous biometric sensing in sport watches and medical patches.
For engineers reviewing the MAX32620IWGL+T datasheet, MAX32620IWGL+T pinout, MAX32620IWGL+T application, or MAX32620IWGL+T equivalent, this page delivers verified technical context, low-power mode current values (e.g., 1.11µA LP1, 14nA LP0), USB 2.0 full-speed compliance, and precise GPIO/SPI/I²C peripheral counts - all validated against Revision C datasheet and TQFP-EP package specifications.
Technical Context
The MAX32620IWGL+T implements a scalable memory architecture with 8KB instruction cache and SPI execute-in-place (SPIX) support for external memory expansion. Its intelligent power management unit (PMU) enables five distinct low-power modes (LP0–LP3), each with deterministic wake-up latency (5µs LP1, 11µs LP0) and supply-specific current budgets (e.g., VDD12_LP1 = 1.11µA).
It integrates a 10-bit sigma-delta ADC with 1.8V-tolerant inputs (AIN0–AIN1 up to 5.5V), selectable reference, and ±2 LSB INL; a full-speed USB 2.0 transceiver with internal termination; and three SPI masters, four UARTs, and up to three I²C masters - all operating across its 1.2V core, 1.8V I/O, and 3.3V USB supply domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU - enables high-efficiency signal processing for sensor fusion and real-time biometric algorithms. |
| Memory | 2MB flash / 256KB SRAM / 8KB instruction cache - supports complex firmware, data buffering, and cache-assisted execution. |
| Power Modes | LP0 (14nA), LP1 (1.11µA), LP2 (28µW/MHz), LP3 (96µA @96MHz) - allows multi-year battery life in always-on wearables. |
| ADC | 10-bit sigma-delta, 7.8kS/s, 5.5V-tolerant AIN0/AIN1 inputs - directly interfaces with unconditioned analog sensors without external level-shifting. |
| USB Interface | Full-speed USB 2.0 with integrated transceiver and 96MHz-optimized timing - eliminates external PHY, reduces BOM, and meets USB-IF electrical specs. |
| Security | Hardware AES-128/-192/-256 engine - accelerates encrypted communication and secure firmware updates without CPU overhead. |
| Operating Temp | -30°C to +85°C - qualified for body-worn medical patches and outdoor sport watches under thermal stress. |
Pinout & Package
MAX32620IWGL+T is packaged in a 100-pin TQFP-EP (exposed pad) with 49 general-purpose I/O pins, supporting flexible voltage domain assignment (VDDIO/VDDIOH). Power sequencing requires independent regulation of VDD12 (1.2V), VDD18 (1.8V), VDDB (3.3V USB), and VRTC (1.8V RTC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD12 (Pin 8) | Core supply rail | 1.2V regulated input powering CPU, SRAM, and digital logic; requires local 1µF bypassing. |
| VDD18 (Pin 91) | I/O supply rail (legacy mode) | 1.8V supply for GPIO, JTAG, and peripherals; compatible with legacy 1.8V system interfaces. |
| VDDIO / VDDIOH (Pins 2, 63, 46) | Configurable I/O voltage rails | Supports 1.8V–3.6V I/O operation; VDDIOH ≥ VDDIO enables mixed-voltage interfacing (e.g., 3.3V sensors + 1.8V logic). |
| DP / DM (Pins 64, 65) | USB differential pair | Integrated full-speed USB transceiver with internal pull-ups; no external resistors required for basic enumeration. |
| AIN0–AIN3 (Pins 35, 37, 39, 41) | Analog inputs | 10-bit ADC channels with 5.5V-tolerant front-end on AIN0/AIN1 - accepts direct connection to battery-powered sensors. |
| TCK / TMS / TDO / TDI (Pins 31, 36, 38, 40) | JTAG/SWD debug interface | IEEE 1149.1-compliant debug port with 25kΩ internal pull-ups to VDDIO - simplifies board-level test and firmware development. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-frequency oscillator | Factory-trimmed 96.0MHz (USB-compliant) and 4.0MHz internal clocks - eliminates external crystals for cost-sensitive designs while maintaining USB timing accuracy. |
| SPI execute-in-place (SPIX) | Direct code execution from external SPI flash via dedicated SPIX engine - reduces SRAM footprint and enables secure over-the-air firmware updates. |
| Ultra-low-power retention | LP1 mode draws only 1.11µA with full SRAM/flash retention and 5µs wake-up - ideal for motion-triggered wake in fitness trackers. |
| Flexible I/O voltage control | Per-pin selection of VDDIO or VDDIOH supply - allows simultaneous interfacing with 1.8V logic, 3.3V sensors, and 5V analog sources without level shifters. |
| Hardware cryptographic acceleration | Dedicated AES engine supporting 128/192/256-bit keys - offloads encryption from CPU, reducing active time and extending battery life in BLE-connected devices. |
Applications
| Sport Watches | Fitness Monitors |
|---|---|
|
Use Scenario: Continuous heart-rate and motion tracking during multi-day outdoor activities with GPS offload. IC Role / Device Role / Timing Role: Primary MCU managing optical sensor acquisition, real-time FFT processing, and Bluetooth LE packet formatting. Use Value: 4MHz low-power mode sustains 2-week battery life; 96MHz burst mode processes raw PPG data within 5ms latency. |
Use Scenario: Wrist-worn activity tracker logging steps, sleep stages, and SpO₂ using reflective photoplethysmography. IC Role / Device Role / Timing Role: Sensor hub aggregating ADC samples, applying digital filtering, and compressing data before BLE transmission. Use Value: 10-bit sigma-delta ADC achieves 58.5dB SNR for clean pulse waveform capture; LP2 mode consumes only 28µW/MHz during background sensing. |
| Wearable Medical Patches | Portable Medical Devices |
|
Use Scenario: Single-use ECG patch monitoring cardiac rhythm for 72-hour ambulatory diagnostics. IC Role / Device Role / Timing Role: Low-noise analog front-end controller with programmable gain, lead-off detection, and secure data storage. Use Value: AIN0–AIN3 support ±5.5V input range - accepts direct electrode signals without external op-amp conditioning; AES engine encrypts patient data at rest. |
Use Scenario: Handheld glucose meter with touch interface, LCD driver, and USB-C firmware update capability. IC Role / Device Role / Timing Role: System-on-chip integrating display controller, USB device stack, and precision ADC for electrochemical strip reading. Use Value: Full-speed USB 2.0 transceiver enables <10s firmware updates; 2MB flash stores multiple calibration profiles and regulatory logs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX32625PICO | Same Cortex-M4 core but 512KB flash, 160KB SRAM, and WLP-81 package; lacks USB transceiver and 5.5V-tolerant ADC inputs. | Better suited for space-constrained, non-USB wearables requiring minimal PCB area. | Select MAX32625PICO when USB connectivity and high-voltage analog sensing are unnecessary and board area is critical. |
| Nordic nRF52840 | ARM Cortex-M4F with integrated BLE 5.0 radio; 1MB flash, 256KB RAM; no hardware AES engine or 10-bit sigma-delta ADC. | Optimized for wireless sensor nodes where RF integration outweighs analog precision and cryptographic acceleration. | Choose nRF52840 when BLE mesh networking is primary and external ADC/crypto ICs are acceptable for analog/security functions. |
Compared with MAX32625PICO and nRF52840, the MAX32620IWGL+T uniquely combines USB 2.0 transceiver, 5.5V-tolerant ADC, and hardware AES in a single die - eliminating discrete components needed for secure, wired-data medical wearables.
Availability
MAX32620IWGL+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.
Supply support for MAX32620IWGL+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 demanding industrial, medical, and IoT applications.
The MAX32620IWGL+T belongs to the DARWIN U-series microcontrollers, engineered specifically for ultra-low-power wearable systems where battery life, analog fidelity, and hardware security are non-negotiable design constraints.
FAQ
What is the maximum operating frequency of the MAX32620IWGL+T's internal oscillator?
The MAX32620IWGL+T features a factory-trimmed internal relaxation oscillator rated at 96.0MHz (typical), with guaranteed USB-compliant tolerance of ±0.25% (95.76MHz to 96.24MHz). This eliminates the need for an external crystal in USB-capable designs while maintaining full-speed timing accuracy. The MAX32620IWGL+T also includes a separate 4MHz RC oscillator optimized for ultra-low-power monitoring tasks.
Does the MAX32620IWGL+T support hardware AES encryption?
Yes, the MAX32620IWGL+T integrates a dedicated hardware AES engine supporting 128-bit, 192-bit, and 256-bit key lengths. This accelerator operates independently of the Cortex-M4 core, enabling secure firmware updates, encrypted sensor data storage, and authenticated BLE pairing without consuming CPU cycles or increasing active power consumption. The MAX32620IWGL+T does not include the Trust Protection Unit (TPU) found in the MAX32621 variant.
What are the low-power mode current specifications for the MAX32620IWGL+T?
The MAX32620IWGL+T achieves industry-leading low-power performance: LP0 mode draws just 14nA (VDD12), LP1 mode consumes 1.11µA with full SRAM/flash retention and 5µs wake-up, and LP2 mode operates at 28µW/MHz. These values are measured per the Revision C datasheet under specified conditions (TA = +25°C, VDD12 = 1.2V) and enable multi-year operation on coin-cell batteries in always-on wearable applications using the MAX32620IWGL+T.
Can the MAX32620IWGL+T interface directly with 5V analog sensors?
Yes - the MAX32620IWGL+T's AIN0 and AIN1 pins are explicitly rated for ±5.5V input voltage range, allowing direct connection to 5V-output analog sensors (e.g., thermistors, strain gauges, or industrial transducers) without external level-shifting circuitry. AIN2 and AIN3 are limited to 3.6V. This capability is confirmed in the "Electrical Characteristics" table (page 7) of the MAX32620IWGL+T datasheet.
What package type and pin count does the MAX32620IWGL+T use?
The MAX32620IWGL+T uses a 100-pin TQFP-EP (thin quad flat pack with exposed pad) package, as indicated by the "IWGL" suffix in the part number. Pin layout and thermal characteristics (θJA = 22°C/W) are documented in the "Pin Configuration" section (page 13) of the official datasheet. This package provides 49 GPIOs, dedicated USB DP/DM pins, and separate power domains for analog, core, I/O, and RTC subsystems.
MAX32620IWGL+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:
- 1MB (1M 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:
- -30°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MAX32620IWGL+T FAQ
1.How can I place an order for MAX32620IWGL+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX32620IWGL+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 MAX32620IWGL+T reliable?
The price and inventory of MAX32620IWGL+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX32620IWGL+T is usually 5 days.
3.What payment methods are accepted for MAX32620IWGL+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX32620IWGL+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX32620IWGL+T?
MAX32620IWGL+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX32620IWGL+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 MAX32620IWGL+T?
For technical support, including MAX32620IWGL+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX32620IWGL+T requirements.
6.How does Aetrix verify that MAX32620IWGL+T is sourced from the original manufacturer or authorized distributors?
All MAX32620IWGL+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 MAX32620IWGL+T meets industry standards.
7.What is the process for return or replacement of MAX32620IWGL+T?
All MAX32620IWGL+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX32620IWGL+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 MAX32620IWGL+T part is unused and in its original packaging.
Return procedure for MAX32620IWGL+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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