| PartNumber | ST72C254G1M6 | ST72C254G1B6 | ST72C254G2B6 |
| Description | 8-bit Microcontrollers - MCU Flash 4K SPI/I2C | IC MCU 8BIT 4KB FLASH 32SDIP | IC MCU 8BIT 8KB FLASH 32SDIP |
| Manufacturer | STMicroelectronics | - | - |
| Product Category | 8-bit Microcontrollers - MCU | - | - |
| RoHS | T | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | SOIC-28 | - | - |
| Series | ST72C254 | - | - |
| Core | ST7 | - | - |
| Data Bus Width | 8 bit | - | - |
| Maximum Clock Frequency | 16 MHz | - | - |
| Program Memory Size | 4 kB | - | - |
| Data RAM Size | 256 B | - | - |
| ADC Resolution | 8 bit | - | - |
| Number of I/Os | 22 I/O | - | - |
| Operating Supply Voltage | 3.2 V to 5.5 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Tube | - | - |
| Height | 2.35 mm | - | - |
| Length | 18.1 mm | - | - |
| Program Memory Type | Flash | - | - |
| Width | 7.6 mm | - | - |
| Brand | STMicroelectronics | - | - |
| Data ROM Type | Flash | - | - |
| Interface Type | I2C, SPI | - | - |
| Moisture Sensitive | Yes | - | - |
| Number of ADC Channels | 6 | - | - |
| Number of Timers/Counters | 3 Timer | - | - |
| Product Type | 8-bit Microcontrollers - MCU | - | - |
| Factory Pack Quantity | 700 | - | - |
| Subcategory | Microcontrollers - MCU | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Supply Voltage Min | 3.2 V | - | - |
| Unit Weight | 0.078125 oz | - | - |