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| PartNumber | ST72F621J4T1 | ST72F621J4B1 | ST72F621K4B1 |
| Description | 8-bit Microcontrollers - MCU ST7262 Lo Spd USB 8B MCU | Microcontrollers - MCU 8-bit Microcontrollers - MCU Flash 16K USB/SPI/SC | IC MCU 8BIT 16KB FLASH 32SDIP |
| Manufacturer | STMicroelectronics | STMicroelectronics | - |
| Product Category | 8-bit Microcontrollers - MCU | Embedded - Microcontrollers | - |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | Through Hole | - |
| Package / Case | TQFP-44 | - | - |
| Series | ST72F621J4 | ST7 | - |
| Core | ST7 | ST7 | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Maximum Clock Frequency | 12 MHz | 12 MHz | - |
| Program Memory Size | 16 kB | 16KB (16K x 8) | - |
| Data RAM Size | 768 B | 768 B | - |
| Number of I/Os | 31 I/O | - | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Packaging | Tray | Tube | - |
| Height | 1.4 mm | - | - |
| Length | 10 mm | - | - |
| Program Memory Type | Flash | FLASH | - |
| Width | 10 mm | - | - |
| Brand | STMicroelectronics | - | - |
| Interface Type | SCI, SPI, USB | SCI SPI USB | - |
| Moisture Sensitive | Yes | - | - |
| Number of Timers/Counters | 2 Timer | - | - |
| Processor Series | ST72F6x | ST72F6x | - |
| Product Type | 8-bit Microcontrollers - MCU | - | - |
| Factory Pack Quantity | 160 | - | - |
| Subcategory | Microcontrollers - MCU | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Supply Voltage Min | 4 V | - | - |
| Unit Weight | - | 0.154832 oz | - |
| Package Case | - | PDIP-42 | - |
| Operating Temperature | - | 0°C ~ 70°C (TA) | - |
| Supplier Device Package | - | * | - |
| Number of I O | - | 31 | - |
| Speed | - | 8MHz | - |
| EEPROM Size | - | - | - |
| Core Processor | - | ST7 | - |
| RAM Size | - | 768 x 8 | - |
| Peripherals | - | DMA, LVD, POR, PWM, WDT | - |
| Connectivity | - | SCI, SPI, USB | - |
| Voltage Supply Vcc Vdd | - | 4 V ~ 5.5 V | - |
| Core Size | - | 8-Bit | - |
| Data Converters | - | A/D 8x10b | - |
| Oscillator Type | - | Internal | - |
| Operating Supply Voltage | - | 4 V to 5.5 V | - |
| Supply Voltage Max | - | 5.5 V | - |
| Supply Voltage Min | - | 4 V | - |
| Number of ADC Channels | - | 8 | - |
| Number of I Os | - | 31 I/O | - |
| Number of Timers Counters | - | 2 Timer | - |
| ADC Resolution | - | 10 bit | - |
| Data ROM Type | - | Flash | - |