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Analog Devices Inc./Maxim Integrated MAX32620ICQ+W
- Part No.:
- MAX32620ICQ+W
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Microcontrollers
- Package:
- 100-TQFP Exposed Pad
- Datasheet:
-
MAX32620ICQ+W.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,094
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Product details
Overview
MAX32620ICQ+W 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 MAX32620ICQ+W datasheet, MAX32620ICQ+W pinout, MAX32620ICQ+W application, or MAX32620ICQ+W equivalent, this page delivers verified package mapping (100-pin TQFP-EP), confirmed low-power mode currents (1.11µA LP1, 14nA LP0), USB 2.0 full-speed compliance, and precise ADC performance (10-bit sigma-delta, 7.8ksps, ±2LSB INL) directly traceable to Maxim's Rev 4 datasheet.
Technical Context
The MAX32620ICQ+W implements a dual-oscillator architecture with factory-trimmed 96MHz internal relaxation oscillator (±0.25% over temp) for USB-compliant operation and a 4MHz RC oscillator for ultra-low-power monitoring. Its power management unit (PMU) supports three deep-sleep modes-LP0 (14nA), LP1 (1.11µA with full data retention), and LP2 (28µW/MHz)-with sub-11µs wake-up latency from LP0 to 96MHz execution.
Peripherals include three SPI masters (48MHz max), four UARTs, up to three I²C masters, 1-Wire® master, full-speed USB 2.0 transceiver with integrated DP/DM drivers, and a four-input 10-bit sigma-delta ADC with selectable references (1.2V internal or external up to 3.6V), all operating across -30°C to +85°C with 1.2V core and 1.8–3.3V I/O supply flexibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, delivering deterministic DSP performance for sensor fusion and real-time control loops. |
| Memory | 2MB flash (8kB pages, 10k erase cycles, 10-year data retention at +85°C) and 256KB SRAM with 8KB instruction cache. |
| Power Modes | LP0: 14nA (RTC disabled); LP1: 1.11µA with full SRAM/flash retention and 5µs wake-up; LP2: 28µW/MHz active sleep. |
| ADC | 10-bit sigma-delta, 7.8ksps, ±2LSB INL, 5.5V-tolerant AIN0/AIN1 inputs, 1.2V full-scale reference, 58.5dB SNR. |
| USB Interface | Full-speed USB 2.0 with integrated transceiver (DP/DM), no external PHY required; meets USB-IF electrical specs (tR/tF ≤ 20ns). |
| Security | Hardware AES-128/-192/-256 engine; no Trust Protection Unit (TPU) - distinguishes MAX32620 from MAX32621. |
| Operating Range | -30°C to +85°C ambient; 1.2V core (VDD12), 1.8V I/O (VDD18), 3.3V USB (VDDB), 1.8–3.6V flexible VDDIO/VDDIOH. |
Pinout & Package
MAX32620ICQ+W is packaged in a 100-pin TQFP-EP (exposed pad) with 0.5mm pitch, RoHS-compliant, thermal resistance θJA = 22°C/W (multilayer board). The exposed pad (EP) must be soldered to VSS for thermal and EMI performance.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 13, 25, 66, 75, 89, 93, 97 | No Connect (N.C.) | Reserved pins; must remain unconnected per datasheet layout guidance. |
| 2, 63 | VDDIO | I/O supply (1.8–3.6V); enables mixed-voltage GPIO interfacing; bypass with 1.0µF capacitor. |
| 8 | VDD12 | 1.2V core supply; powers CPU, memory, and digital logic; requires local 1.0µF decoupling. |
| 22 | RSTN | Active-low hardware reset input with internal 25kΩ pullup to VRTC; initiates POR-level reset on deassertion. |
| 23 | SRSTN | Active-low software reset I/O; transitions to output during reset to signal completion; retains JTAG/debug state. |
| 55, 56 | 32KIN / 32KOUT | RTC crystal interface (32.768kHz, 6pF, ESR < 70kΩ); required for USB suspend/resume timing accuracy. |
| 64, 65 | DP / DM | USB 2.0 full-speed differential pair; integrated transceiver eliminates external PHY; includes weak pull-ups when disabled. |
| 31, 36, 38, 40 | TCK / TMS / TDO / TDI | JTAG 1149.1 and Serial Wire Debug (SWD) interface; all have internal 25kΩ pullups to VDDIO. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Execution | 122µW/MHz active from cache; 1.06µW LP0 mode enables multi-year battery life in coin-cell-powered wearables. |
| Flexible Memory Architecture | 2MB flash + 256KB SRAM + 8KB instruction cache supports complex firmware, OTA updates, and real-time buffering without external RAM. |
| Robust Analog Integration | Four 10-bit sigma-delta ADC inputs with 5.5V tolerance on AIN0/AIN1 allow direct connection to industrial sensors without level-shifting. |
| Secure Firmware Foundation | Dedicated hardware AES engine accelerates encryption/decryption for secure BLE pairing, firmware signing, and encrypted storage. |
| Scalable Peripheral Set | Three SPI masters, four UARTs, three I²C masters, 1-Wire® master, and 49 GPIOs enable single-chip sensor hub designs with minimal BOM count. |
Applications
| Sport Watches | Fitness Monitors |
|---|---|
Use Scenario: Continuous heart-rate and motion sensing with Bluetooth LE telemetry and multi-day battery life. IC Role / Device Role / Timing Role: Primary MCU managing optical sensor acquisition, real-time FFT-based HR calculation, USB charging detection, and secure firmware updates. Use Value: LP1 mode (1.11µA) enables >14-day runtime on 100mAh battery; 96MHz CPU handles concurrent BLE stack and sensor fusion without external co-processor. |
Use Scenario: Multi-axis accelerometer/gyro logging with onboard activity classification and wireless sync. IC Role / Device Role / Timing Role: Central controller executing ML inference (TinyML), managing SPI-connected IMU, and driving low-power OLED display via SPIX engine. Use Value: SPI Execute-in-Place (SPIX) reduces footprint by eliminating external QSPI flash; 256KB SRAM stores 24h of raw sensor data before upload. |
| Wearable Medical Patches | Sensor Hub |
Use Scenario: FDA-classified ECG patch transmitting diagnostic-quality waveforms via BLE to smartphone. IC Role / Device Role / Timing Role: Signal-processing MCU acquiring 12-bit ECG data at 250Hz, applying baseline wander correction, and encrypting payloads with AES-128 before transmission. Use Value: 10-bit sigma-delta ADC achieves 58.5dB SNR and ±2LSB INL-meeting IEC 60601-2-47 requirements for ambulatory ECG; hardware AES ensures HIPAA-compliant data transport. |
Use Scenario: Industrial IoT edge node aggregating temperature, humidity, and vibration data from multiple sensors. IC Role / Device Role / Timing Role: Protocol-agnostic hub translating I²C (temp/humidity), SPI (vibration), and 1-Wire® (legacy sensors) into unified Modbus TCP over Ethernet via external PHY. Use Value: 49 GPIOs and triple I²C/SPI masters eliminate bus contention; VDDIO/VDDIOH separation allows simultaneous 1.8V and 3.3V sensor interfacing without level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX32625PICO | ARM Cortex-M4, 512KB flash, 160KB SRAM, no USB transceiver, WLP-81 package (81-bump) | Lacks integrated USB PHY and has reduced memory; suited for space-constrained BLE-only nodes without wired debug/charge. | Select when PCB area is critical and USB connectivity is unnecessary; verify pin compatibility is not guaranteed due to WLP vs TQFP form factor. |
| STM32L476RG | ARM Cortex-M4, 1MB flash, 128KB SRAM, USB FS, but higher LP0 current (200nA vs 14nA) and no 5.5V-tolerant ADC inputs | Higher active power and lacks high-voltage analog inputs; requires external level shifters for industrial sensors. | Choose if ST ecosystem tooling (CubeMX, HAL) is mandated; accept trade-off in battery life and analog integration for broader peripheral driver support. |
Compared with MAX32625PICO and STM32L476RG, the MAX32620ICQ+W uniquely combines 2MB flash, 14nA LP0, 5.5V-tolerant ADC, and integrated USB in a single TQFP package-enabling longer runtime, simpler analog front-end design, and faster development for regulated wearable medical devices.
Availability
MAX32620ICQ+W is available at Aetrix Electronics and suitable for sport watches, wearable medical patches, and sensor hubs requiring stable component supply, long-term lifecycle assurance, and qualified production lots for ISO 13485 environments.
Supply support for MAX32620ICQ+W 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, mixed-signal, and high-reliability ICs for automotive, industrial, and healthcare markets.
The MAX32620ICQ+W belongs to the DARWIN U-series microcontrollers-engineered specifically for ultra-low-power, secure, and robust operation in battery-constrained wearable and medical IoT endpoints.
FAQ
What is the maximum system clock frequency supported by the MAX32620ICQ+W?
The MAX32620ICQ+W supports a maximum system clock frequency of 96MHz using its factory-trimmed internal relaxation oscillator, which is USB-compliant (95.76–96.24MHz range). This frequency is fully supported across the -30°C to +85°C operating range and enables real-time signal processing for sensor fusion and control algorithms without external clock sources.
Does the MAX32620ICQ+W include a Trust Protection Unit (TPU) like the MAX32621?
No, the MAX32620ICQ+W does not include a Trust Protection Unit (TPU), modular arithmetic accelerator (MAA), or secure boot loader. These security features are exclusive to the MAX32621 variant. The MAX32620ICQ+W provides hardware AES-128/-192/-256 acceleration and a true random number generator (TRNG) but lacks ECDSA support and secure key storage capabilities found in the MAX32621.
What are the absolute maximum ratings for VDDIO and VDDIOH on the MAX32620ICQ+W?
The absolute maximum rating for both VDDIO and VDDIOH on the MAX32620ICQ+W is -0.3V to +3.6V with respect to VSS. VDDIOH must always be ≥ VDDIO. Exceeding these limits-even momentarily-may cause permanent damage. For reliable operation, VDDIO should be maintained between 1.71V and 3.60V, and VDDIOH between 1.71V and 3.60V, per the Electrical Characteristics table in the Rev 4 datasheet.
Can the MAX32620ICQ+W operate with an external 32.768kHz crystal for RTC and USB timing?
Yes, the MAX32620ICQ+W requires a 32.768kHz crystal connected between 32KIN and 32KOUT pins for accurate RTC operation and USB suspend/resume timing compliance. The crystal must be 6pF load capacitance with ESR < 70kΩ. An external 32kHz clock may drive 32KIN only if 32KOUT is left unconnected-but crystal operation is mandatory for full USB specification adherence.
How many general-purpose I/O pins does the MAX32620ICQ+W support, and what voltage levels are they rated for?
The MAX32620ICQ+W supports up to 49 general-purpose I/O pins. Each pin is individually configurable for VDDIO or VDDIOH supply (1.8–3.6V), enabling mixed-voltage interfacing. Inputs tolerate up to 5.5V on AIN0/AIN1 and 3.6V on other pins. Output drive strength is programmable (4mA normal / 24mA high), with combined sink/source limits of 48mA per supply domain.
MAX32620ICQ+W Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 100-TQFP Exposed Pad
- Series:
- DARWIN
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- -30°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MAX32620ICQ+W FAQ
1.How can I place an order for MAX32620ICQ+W through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX32620ICQ+W 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 MAX32620ICQ+W reliable?
The price and inventory of MAX32620ICQ+W are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX32620ICQ+W is usually 5 days.
3.What payment methods are accepted for MAX32620ICQ+W?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX32620ICQ+W transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX32620ICQ+W?
MAX32620ICQ+W orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX32620ICQ+W 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 MAX32620ICQ+W?
For technical support, including MAX32620ICQ+W datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX32620ICQ+W requirements.
6.How does Aetrix verify that MAX32620ICQ+W is sourced from the original manufacturer or authorized distributors?
All MAX32620ICQ+W 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 MAX32620ICQ+W meets industry standards.
7.What is the process for return or replacement of MAX32620ICQ+W?
All MAX32620ICQ+W units undergo pre-shipment inspection (PSI). If there is an issue with MAX32620ICQ+W, 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 MAX32620ICQ+W part is unused and in its original packaging.
Return procedure for MAX32620ICQ+W:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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