| PartNumber | MAX32621ICQ+ | MAX32621IWG+T | MAX32621IWG+ |
| Description | ARM Microcontrollers - MCU SECURE ULTRA-LOW POWER CORTEX M4 TQFP | ARM Microcontrollers - MCU SECURE ULTRA-LOW POWER CORTEX M4 WLP T&R | ARM Microcontrollers - MCU SECURE ULTRA-LOW POWER CORTEX M4 WLP BULK |
| Manufacturer | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | TQFP-100 | - | - |
| Series | MAX32621 | MAX32621 | MAX32621 |
| Core | ARM Cortex M4F | ARM Cortex M4F | ARM Cortex M4F |
| Data Bus Width | 32 bit | 32 bit | 32 bit |
| Maximum Clock Frequency | 96 MHz | 96 MHz | 96 MHz |
| Program Memory Size | 2 MB | 2 MB | 2 MB |
| Data RAM Size | 256 kB | 256 kB | 256 kB |
| ADC Resolution | 10 bit | 10 bit | 10 bit |
| Number of I/Os | 49 I/O | - | - |
| Operating Supply Voltage | 1.2 V | 1.2 V | 1.2 V |
| Minimum Operating Temperature | - 30 C | - | - 30 C |
| Maximum Operating Temperature | + 85 C | - | + 85 C |
| Packaging | Tube | Reel | - |
| Product | MCU+FPU | - | - |
| Program Memory Type | Flash | - | - |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Data RAM Type | SRAM | - | - |
| Interface Type | I2C, SPI, UART, USB | - | - |
| Development Kit | MAX32621-EVKIT# | - | - |
| I/O Voltage | 1.8 V, 3.3 V | 1.8 V, 3.3 V | 1.8 V, 3.3 V |
| Moisture Sensitive | Yes | - | - |
| Number of ADC Channels | 4 Channel | - | - |
| Number of Timers/Counters | 6 Timer | - | - |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| Factory Pack Quantity | 90 | 2000 | 10 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 1.26 V | 1.26 V | 1.26 V |
| Supply Voltage Min | 1.14 V | 1.14 V | 1.14 V |
| Watchdog Timers | Watchdog Timer, Windowed | - | - |
| Part # Aliases | 90-B6721+RB8 | 90-B6721+WB8 | 90-B6721+WBB |